Merge branch 'master' into f-bolt-db

.travis.yml

@@ -7,7 +7,7 @@ services:
 language: go
 
 go:
-  -  1.8
+  -  1.8.x
 
 branches:
   only:

CHANGELOG.md

@@ -4,10 +4,14 @@ IMPROVEMENTS:
  * core: Back-pressure when evaluations are nacked and ensure scheduling
    progress on evaluation failures [GH-2555]
  * core: Track multiple job versions and add a stopped state for jobs [GH-2566]
+ * api: Add `verify_https_client` to require certificates from HTTP clients
+   [GH-2587]
  * api/job: Ability to revert job to older versions [GH-2575]
  * client: Fingerprint all routable addresses on an interface including IPv6
    addresses [GH-2536]
  * client: Hash host ID so its stable and well distributed [GH-2541]
+ * client: Environment variables for client DC and Region [GH-2507]
+ * config: Support Unix socket addresses for Consul [GH-2622]
  * driver/docker: Allow specifying extra hosts [GH-2547]
  * driver/docker: Allow setting container IP with user defined networks
    [GH-2535]
@@ -22,6 +26,7 @@ BUG FIXES:
  * client/artifact: Handle tars where file in directory is listed before
    directory [GH-2524]
  * driver/exec: Properly set file/dir ownership in chroots [GH-2552]
+ * driver/docker: Fix panic in Docker driver on Windows [GH-2614]
  * server: Reject non-TLS clients when TLS enabled [GH-2525]
  * server: Fix a panic in plan evaluation with partial failures and all_at_once
    set [GH-2544]

Vagrantfile

@@ -20,7 +20,8 @@ sudo DEBIAN_FRONTEND=noninteractive apt-get install -y build-essential curl git-
      liblxc1 lxc-dev lxc-templates                      \
      gcc-5-aarch64-linux-gnu binutils-aarch64-linux-gnu \
      libc6-dev-i386 linux-libc-dev:i386                 \
-     gcc-5-arm-linux-gnueabihf gcc-5-multilib-arm-linux-gnueabihf binutils-arm-linux-gnueabihf
+     gcc-5-arm-linux-gnueabihf gcc-5-multilib-arm-linux-gnueabihf binutils-arm-linux-gnueabihf \
+     gcc-mingw-w64 binutils-mingw-w64
 
 # Setup go, for development of Nomad
 SRCROOT="/opt/go"

client/alloc_runner.go

@@ -276,8 +276,8 @@ func (r *AllocRunner) RestoreState() error {
 			continue
 		}
 
-		if err := tr.RestoreState(); err != nil {
-			r.logger.Printf("[ERR] client: failed to restore state for alloc %s task '%s': %v", r.alloc.ID, name, err)
+		if restartReason, err := tr.RestoreState(); err != nil {
+			r.logger.Printf("[ERR] client: failed to restore state for alloc %s task %q: %v", r.alloc.ID, name, err)
 			mErr.Errors = append(mErr.Errors, err)
 		} else if !r.alloc.TerminalStatus() {
 			// Only start if the alloc isn't in a terminal status.
@@ -288,6 +288,11 @@ func (r *AllocRunner) RestoreState() error {
 					r.logger.Printf("[WARN] client: initial save state for alloc %s task %s failed: %v", r.alloc.ID, name, err)
 				}
 			}
+
+			// Restart task runner if RestoreState gave a reason
+			if restartReason != "" {
+				tr.Restart("upgrade", restartReason)
+			}
 		}
 	}
 

client/alloc_runner_test.go

@@ -34,6 +34,7 @@ func (m *MockAllocStateUpdater) Update(alloc *structs.Allocation) {
 func testAllocRunnerFromAlloc(alloc *structs.Allocation, restarts bool) (*MockAllocStateUpdater, *AllocRunner) {
 	logger := testLogger()
 	conf := config.DefaultConfig()
+	conf.Node = mock.Node()
 	conf.StateDir = os.TempDir()
 	conf.AllocDir = os.TempDir()
 	tmp, _ := ioutil.TempFile("", "state-db")
@@ -502,6 +503,84 @@ func TestAllocRunner_SaveRestoreState_TerminalAlloc(t *testing.T) {
 	})
 }
 
+// TestAllocRunner_SaveRestoreState_Upgrade asserts that pre-0.6 exec tasks are
+// restarted on upgrade.
+func TestAllocRunner_SaveRestoreState_Upgrade(t *testing.T) {
+	alloc := mock.Alloc()
+	task := alloc.Job.TaskGroups[0].Tasks[0]
+	task.Driver = "mock_driver"
+	task.Config = map[string]interface{}{
+		"exit_code": "0",
+		"run_for":   "10s",
+	}
+
+	upd, ar := testAllocRunnerFromAlloc(alloc, false)
+	// Hack in old version to cause an upgrade on RestoreState
+	origConfig := ar.config.Copy()
+	ar.config.Version = "0.5.6"
+	go ar.Run()
+
+	// Snapshot state
+	testutil.WaitForResult(func() (bool, error) {
+		return len(ar.tasks) == 1, nil
+	}, func(err error) {
+		t.Fatalf("task never started: %v", err)
+	})
+
+	err := ar.SaveState()
+	if err != nil {
+		t.Fatalf("err: %v", err)
+	}
+
+	// Create a new alloc runner
+	l2 := prefixedTestLogger("----- ar2:  ")
+	ar2 := NewAllocRunner(l2, origConfig, upd.Update,
+		&structs.Allocation{ID: ar.alloc.ID}, ar.vaultClient,
+		ar.consulClient)
+	err = ar2.RestoreState()
+	if err != nil {
+		t.Fatalf("err: %v", err)
+	}
+	go ar2.Run()
+
+	testutil.WaitForResult(func() (bool, error) {
+		if len(ar2.tasks) != 1 {
+			return false, fmt.Errorf("Incorrect number of tasks")
+		}
+
+		if upd.Count < 3 {
+			return false, nil
+		}
+
+		for _, ev := range ar2.alloc.TaskStates["web"].Events {
+			if strings.HasSuffix(ev.RestartReason, pre06ScriptCheckReason) {
+				return true, nil
+			}
+		}
+		return false, fmt.Errorf("no restart with proper reason found")
+	}, func(err error) {
+		t.Fatalf("err: %v\nAllocs: %#v\nWeb State: %#v", err, upd.Allocs, ar2.alloc.TaskStates["web"])
+	})
+
+	// Destroy and wait
+	ar2.Destroy()
+	start := time.Now()
+
+	testutil.WaitForResult(func() (bool, error) {
+		alloc := ar2.Alloc()
+		if alloc.ClientStatus != structs.AllocClientStatusComplete {
+			return false, fmt.Errorf("Bad client status; got %v; want %v", alloc.ClientStatus, structs.AllocClientStatusComplete)
+		}
+		return true, nil
+	}, func(err error) {
+		t.Fatalf("err: %v %#v %#v", err, upd.Allocs[0], ar.alloc.TaskStates)
+	})
+
+	if time.Since(start) > time.Duration(testutil.TestMultiplier()*5)*time.Second {
+		t.Fatalf("took too long to terminate")
+	}
+}
+
 // Ensure pre-#2132 state files containing the Context struct are properly
 // migrated to the new format.
 //

client/consul_template_test.go

@@ -121,7 +121,10 @@ func newTestHarness(t *testing.T, templates []*structs.Template, consul, vault b
 	harness.taskDir = d
 
 	if consul {
-		harness.consul = ctestutil.NewTestServer(t)
+		harness.consul, err = ctestutil.NewTestServer()
+		if err != nil {
+			t.Fatalf("error starting test Consul server: %v", err)
+		}
 		harness.config.ConsulConfig = &sconfig.ConsulConfig{
 			Addr: harness.consul.HTTPAddr,
 		}
@@ -445,7 +448,7 @@ func TestTaskTemplateManager_Unblock_Consul(t *testing.T) {
 	}
 
 	// Write the key to Consul
-	harness.consul.SetKV(key, []byte(content))
+	harness.consul.SetKV(t, key, []byte(content))
 
 	// Wait for the unblock
 	select {
@@ -563,7 +566,7 @@ func TestTaskTemplateManager_Unblock_Multi_Template(t *testing.T) {
 	}
 
 	// Write the key to Consul
-	harness.consul.SetKV(consulKey, []byte(consulContent))
+	harness.consul.SetKV(t, consulKey, []byte(consulContent))
 
 	// Wait for the unblock
 	select {
@@ -612,7 +615,7 @@ func TestTaskTemplateManager_Rerender_Noop(t *testing.T) {
 	}
 
 	// Write the key to Consul
-	harness.consul.SetKV(key, []byte(content1))
+	harness.consul.SetKV(t, key, []byte(content1))
 
 	// Wait for the unblock
 	select {
@@ -633,7 +636,7 @@ func TestTaskTemplateManager_Rerender_Noop(t *testing.T) {
 	}
 
 	// Update the key in Consul
-	harness.consul.SetKV(key, []byte(content2))
+	harness.consul.SetKV(t, key, []byte(content2))
 
 	select {
 	case <-harness.mockHooks.RestartCh:
@@ -697,8 +700,8 @@ func TestTaskTemplateManager_Rerender_Signal(t *testing.T) {
 	}
 
 	// Write the key to Consul
-	harness.consul.SetKV(key1, []byte(content1_1))
-	harness.consul.SetKV(key2, []byte(content2_1))
+	harness.consul.SetKV(t, key1, []byte(content1_1))
+	harness.consul.SetKV(t, key2, []byte(content2_1))
 
 	// Wait for the unblock
 	select {
@@ -712,8 +715,8 @@ func TestTaskTemplateManager_Rerender_Signal(t *testing.T) {
 	}
 
 	// Update the keys in Consul
-	harness.consul.SetKV(key1, []byte(content1_2))
-	harness.consul.SetKV(key2, []byte(content2_2))
+	harness.consul.SetKV(t, key1, []byte(content1_2))
+	harness.consul.SetKV(t, key2, []byte(content2_2))
 
 	// Wait for signals
 	timeout := time.After(time.Duration(1*testutil.TestMultiplier()) * time.Second)
@@ -782,7 +785,7 @@ func TestTaskTemplateManager_Rerender_Restart(t *testing.T) {
 	}
 
 	// Write the key to Consul
-	harness.consul.SetKV(key1, []byte(content1_1))
+	harness.consul.SetKV(t, key1, []byte(content1_1))
 
 	// Wait for the unblock
 	select {
@@ -792,7 +795,7 @@ func TestTaskTemplateManager_Rerender_Restart(t *testing.T) {
 	}
 
 	// Update the keys in Consul
-	harness.consul.SetKV(key1, []byte(content1_2))
+	harness.consul.SetKV(t, key1, []byte(content1_2))
 
 	// Wait for restart
 	timeout := time.After(time.Duration(1*testutil.TestMultiplier()) * time.Second)
@@ -878,7 +881,7 @@ func TestTaskTemplateManager_Signal_Error(t *testing.T) {
 	harness.mockHooks.SignalError = fmt.Errorf("test error")
 
 	// Write the key to Consul
-	harness.consul.SetKV(key1, []byte(content1))
+	harness.consul.SetKV(t, key1, []byte(content1))
 
 	// Wait a little
 	select {
@@ -888,7 +891,7 @@ func TestTaskTemplateManager_Signal_Error(t *testing.T) {
 	}
 
 	// Write the key to Consul
-	harness.consul.SetKV(key1, []byte(content2))
+	harness.consul.SetKV(t, key1, []byte(content2))
 
 	// Wait for kill channel
 	select {

client/driver/driver.go

@@ -309,6 +309,8 @@ func GetTaskEnv(taskDir *allocdir.TaskDir, node *structs.Node,
 	env := env.NewTaskEnvironment(node).
 		SetTaskMeta(alloc.Job.CombinedTaskMeta(alloc.TaskGroup, task.Name)).
 		SetJobName(alloc.Job.Name).
+		SetDatacenterName(node.Datacenter).
+		SetRegionName(conf.Region).
 		SetEnvvars(task.Env).
 		SetTaskName(task.Name)
 

client/driver/driver_test.go

@@ -74,6 +74,8 @@ func testConfig() *config.Config {
 	conf.StateDir = os.TempDir()
 	conf.AllocDir = os.TempDir()
 	conf.MaxKillTimeout = 10 * time.Second
+	conf.Region = "global"
+	conf.Node = mock.Node()
 	return conf
 }
 
@@ -88,6 +90,7 @@ type testContext struct {
 // It is up to the caller to call AllocDir.Destroy to cleanup.
 func testDriverContexts(t *testing.T, task *structs.Task) *testContext {
 	cfg := testConfig()
+	cfg.Node = mock.Node()
 	allocDir := allocdir.NewAllocDir(testLogger(), filepath.Join(cfg.AllocDir, structs.GenerateUUID()))
 	if err := allocDir.Build(); err != nil {
 		t.Fatalf("AllocDir.Build() failed: %v", err)
@@ -162,7 +165,7 @@ func setupTaskEnv(t *testing.T, driver string) (*allocdir.TaskDir, map[string]st
 	conf := testConfig()
 	allocDir := allocdir.NewAllocDir(testLogger(), filepath.Join(conf.AllocDir, alloc.ID))
 	taskDir := allocDir.NewTaskDir(task.Name)
-	env, err := GetTaskEnv(taskDir, nil, task, alloc, conf, "")
+	env, err := GetTaskEnv(taskDir, conf.Node, task, alloc, conf, "")
 	if err != nil {
 		t.Fatalf("GetTaskEnv() failed: %v", err)
 	}
@@ -209,6 +212,8 @@ func setupTaskEnv(t *testing.T, driver string) (*allocdir.TaskDir, map[string]st
 		"NOMAD_ALLOC_NAME":              alloc.Name,
 		"NOMAD_TASK_NAME":               task.Name,
 		"NOMAD_JOB_NAME":                alloc.Job.Name,
+		"NOMAD_DC":                      "dc1",
+		"NOMAD_REGION":                  "global",
 	}
 
 	act := env.EnvMap()

client/driver/env/env.go

@@ -48,6 +48,12 @@ const (
 	// AllocIndex is the environment variable for passing the allocation index.
 	AllocIndex = "NOMAD_ALLOC_INDEX"
 
+	// Datacenter is the environment variable for passing the datacenter in which the alloc is running.
+	Datacenter = "NOMAD_DC"
+
+	// Region is the environment variable for passing the region in which the alloc is running.
+	Region = "NOMAD_REGION"
+
 	// AddrPrefix is the prefix for passing both dynamic and static port
 	// allocations to tasks.
 	// E.g $NOMAD_ADDR_http=127.0.0.1:80
@@ -72,10 +78,11 @@ const (
 
 // The node values that can be interpreted.
 const (
-	nodeIdKey    = "node.unique.id"
-	nodeDcKey    = "node.datacenter"
-	nodeNameKey  = "node.unique.name"
-	nodeClassKey = "node.class"
+	nodeIdKey     = "node.unique.id"
+	nodeDcKey     = "node.datacenter"
+	nodeRegionKey = "node.region"
+	nodeNameKey   = "node.unique.name"
+	nodeClassKey  = "node.class"
 
 	// Prefixes used for lookups.
 	nodeAttributePrefix = "attr."
@@ -94,6 +101,8 @@ type TaskEnvironment struct {
 	MemLimit         int
 	TaskName         string
 	AllocIndex       int
+	Datacenter       string
+	Region           string
 	AllocId          string
 	AllocName        string
 	Node             *structs.Node
@@ -195,6 +204,12 @@ func (t *TaskEnvironment) Build() *TaskEnvironment {
 	if t.JobName != "" {
 		t.TaskEnv[JobName] = t.JobName
 	}
+	if t.Datacenter != "" {
+		t.TaskEnv[Datacenter] = t.Datacenter
+	}
+	if t.Region != "" {
+		t.TaskEnv[Region] = t.Region
+	}
 
 	// Build the addr of the other tasks
 	if t.Alloc != nil {
@@ -227,6 +242,7 @@ func (t *TaskEnvironment) Build() *TaskEnvironment {
 		// Set up the node values.
 		t.NodeValues[nodeIdKey] = t.Node.ID
 		t.NodeValues[nodeDcKey] = t.Node.Datacenter
+		t.NodeValues[nodeRegionKey] = t.Region
 		t.NodeValues[nodeNameKey] = t.Node.Name
 		t.NodeValues[nodeClassKey] = t.Node.NodeClass
 
@@ -488,21 +504,41 @@ func (t *TaskEnvironment) SetTaskName(name string) *TaskEnvironment {
 	return t
 }
 
-func (t *TaskEnvironment) SetJobName(name string) *TaskEnvironment {
-	t.JobName = name
-	return t
-}
-
 func (t *TaskEnvironment) ClearTaskName() *TaskEnvironment {
 	t.TaskName = ""
 	return t
 }
 
+func (t *TaskEnvironment) SetJobName(name string) *TaskEnvironment {
+	t.JobName = name
+	return t
+}
+
 func (t *TaskEnvironment) ClearJobName() *TaskEnvironment {
 	t.JobName = ""
 	return t
 }
 
+func (t *TaskEnvironment) SetDatacenterName(name string) *TaskEnvironment {
+	t.Datacenter = name
+	return t
+}
+
+func (t *TaskEnvironment) ClearDatacenterName() *TaskEnvironment {
+	t.Datacenter = ""
+	return t
+}
+
+func (t *TaskEnvironment) SetRegionName(name string) *TaskEnvironment {
+	t.Region = name
+	return t
+}
+
+func (t *TaskEnvironment) ClearRegionName() *TaskEnvironment {
+	t.Region = ""
+	return t
+}
+
 func (t *TaskEnvironment) SetVaultToken(token string, inject bool) *TaskEnvironment {
 	t.VaultToken = token
 	t.InjectVaultToken = inject

client/driver/exec.go

@@ -259,7 +259,12 @@ func (h *execHandle) Update(task *structs.Task) error {
 }
 
 func (h *execHandle) Exec(ctx context.Context, cmd string, args []string) ([]byte, int, error) {
-	return execChroot(ctx, h.taskDir.Dir, cmd, args)
+	deadline, ok := ctx.Deadline()
+	if !ok {
+		// No deadline set on context; default to 1 minute
+		deadline = time.Now().Add(time.Minute)
+	}
+	return h.executor.Exec(deadline, cmd, args)
 }
 
 func (h *execHandle) Signal(s os.Signal) error {

client/driver/exec_test.go

@@ -283,7 +283,8 @@ func TestExecDriverUser(t *testing.T) {
 	}
 }
 
-// TestExecDriver_HandlerExec ensures the exec driver's handle properly executes commands inside the chroot.
+// TestExecDriver_HandlerExec ensures the exec driver's handle properly
+// executes commands inside the container.
 func TestExecDriver_HandlerExec(t *testing.T) {
 	ctestutils.ExecCompatible(t)
 	task := &structs.Task{
@@ -315,20 +316,60 @@ func TestExecDriver_HandlerExec(t *testing.T) {
 		t.Fatalf("missing handle")
 	}
 
-	// Exec a command that should work
-	out, code, err := handle.Exec(context.TODO(), "/usr/bin/stat", []string{"/alloc"})
+	// Exec a command that should work and dump the environment
+	out, code, err := handle.Exec(context.Background(), "/bin/sh", []string{"-c", "env | grep NOMAD"})
 	if err != nil {
 		t.Fatalf("error exec'ing stat: %v", err)
 	}
 	if code != 0 {
 		t.Fatalf("expected `stat /alloc` to succeed but exit code was: %d", code)
 	}
-	if expected := 100; len(out) < expected {
-		t.Fatalf("expected at least %d bytes of output but found %d:\n%s", expected, len(out), out)
+
+	// Assert exec'd commands are run in a task-like environment
+	scriptEnv := make(map[string]string)
+	for _, line := range strings.Split(string(out), "\n") {
+		if line == "" {
+			continue
+		}
+		parts := strings.SplitN(string(line), "=", 2)
+		if len(parts) != 2 {
+			t.Fatalf("Invalid env var: %q", line)
+		}
+		scriptEnv[parts[0]] = parts[1]
+	}
+	if v, ok := scriptEnv["NOMAD_SECRETS_DIR"]; !ok || v != "/secrets" {
+		t.Errorf("Expected NOMAD_SECRETS_DIR=/secrets but found=%t value=%q", ok, v)
+	}
+	if v, ok := scriptEnv["NOMAD_ALLOC_ID"]; !ok || v != ctx.DriverCtx.allocID {
+		t.Errorf("Expected NOMAD_SECRETS_DIR=%q but found=%t value=%q", ok, v)
+	}
+
+	// Assert cgroup membership
+	out, code, err = handle.Exec(context.Background(), "/bin/cat", []string{"/proc/self/cgroup"})
+	if err != nil {
+		t.Fatalf("error exec'ing cat /proc/self/cgroup: %v", err)
+	}
+	if code != 0 {
+		t.Fatalf("expected `cat /proc/self/cgroup` to succeed but exit code was: %d", code)
+	}
+	found := false
+	for _, line := range strings.Split(string(out), "\n") {
+		// Every cgroup entry should be /nomad/$ALLOC_ID
+		if line == "" {
+			continue
+		}
+		if !strings.Contains(line, ":/nomad/") {
+			t.Errorf("Not a member of the alloc's cgroup: expected=...:/nomad/... -- found=%q", line)
+			continue
+		}
+		found = true
+	}
+	if !found {
+		t.Errorf("exec'd command isn't in the task's cgroup")
 	}
 
 	// Exec a command that should fail
-	out, code, err = handle.Exec(context.TODO(), "/usr/bin/stat", []string{"lkjhdsaflkjshowaisxmcvnlia"})
+	out, code, err = handle.Exec(context.Background(), "/usr/bin/stat", []string{"lkjhdsaflkjshowaisxmcvnlia"})
 	if err != nil {
 		t.Fatalf("error exec'ing stat: %v", err)
 	}

client/driver/executor/executor.go

@@ -1,6 +1,7 @@
 package executor
 
 import (
+	"context"
 	"fmt"
 	"io/ioutil"
 	"log"
@@ -15,6 +16,7 @@ import (
 	"syscall"
 	"time"
 
+	"github.com/armon/circbuf"
 	"github.com/hashicorp/go-multierror"
 	"github.com/mitchellh/go-ps"
 	"github.com/shirou/gopsutil/process"
@@ -57,6 +59,7 @@ type Executor interface {
 	Version() (*ExecutorVersion, error)
 	Stats() (*cstructs.TaskResourceUsage, error)
 	Signal(s os.Signal) error
+	Exec(deadline time.Time, cmd string, args []string) ([]byte, int, error)
 }
 
 // ExecutorContext holds context to configure the command user
@@ -203,8 +206,8 @@ func (e *UniversalExecutor) SetContext(ctx *ExecutorContext) error {
 	return nil
 }
 
-// LaunchCmd launches a process and returns it's state. It also configures an
-// applies isolation on certain platforms.
+// LaunchCmd launches the main process and returns its state. It also
+// configures an applies isolation on certain platforms.
 func (e *UniversalExecutor) LaunchCmd(command *ExecCommand) (*ProcessState, error) {
 	e.logger.Printf("[DEBUG] executor: launching command %v %v", command.Cmd, strings.Join(command.Args, " "))
 
@@ -283,6 +286,51 @@ func (e *UniversalExecutor) LaunchCmd(command *ExecCommand) (*ProcessState, erro
 	return &ProcessState{Pid: e.cmd.Process.Pid, ExitCode: -1, IsolationConfig: ic, Time: time.Now()}, nil
 }
 
+// Exec a command inside a container for exec and java drivers.
+func (e *UniversalExecutor) Exec(deadline time.Time, name string, args []string) ([]byte, int, error) {
+	ctx, cancel := context.WithDeadline(context.Background(), deadline)
+	defer cancel()
+	return ExecScript(ctx, e.cmd.Dir, e.ctx.TaskEnv, e.cmd.SysProcAttr, name, args)
+}
+
+// ExecScript executes cmd with args and returns the output, exit code, and
+// error. Output is truncated to client/driver/structs.CheckBufSize
+func ExecScript(ctx context.Context, dir string, env *env.TaskEnvironment, attrs *syscall.SysProcAttr,
+	name string, args []string) ([]byte, int, error) {
+	name = env.ReplaceEnv(name)
+	cmd := exec.CommandContext(ctx, name, env.ParseAndReplace(args)...)
+
+	// Copy runtime environment from the main command
+	cmd.SysProcAttr = attrs
+	cmd.Dir = dir
+	cmd.Env = env.EnvList()
+
+	// Capture output
+	buf, _ := circbuf.NewBuffer(int64(dstructs.CheckBufSize))
+	cmd.Stdout = buf
+	cmd.Stderr = buf
+
+	if err := cmd.Run(); err != nil {
+		exitErr, ok := err.(*exec.ExitError)
+		if !ok {
+			// Non-exit error, return it and let the caller treat
+			// it as a critical failure
+			return nil, 0, err
+		}
+
+		// Some kind of error happened; default to critical
+		exitCode := 2
+		if status, ok := exitErr.Sys().(syscall.WaitStatus); ok {
+			exitCode = status.ExitStatus()
+		}
+
+		// Don't return the exitError as the caller only needs the
+		// output and code.
+		return buf.Bytes(), exitCode, nil
+	}
+	return buf.Bytes(), 0, nil
+}
+
 // configureLoggers sets up the standard out/error file rotators
 func (e *UniversalExecutor) configureLoggers() error {
 	e.rotatorLock.Lock()

client/driver/executor_plugin.go

@@ -6,6 +6,7 @@ import (
 	"net/rpc"
 	"os"
 	"syscall"
+	"time"
 
 	"github.com/hashicorp/go-plugin"
 	"github.com/hashicorp/nomad/client/driver/executor"
@@ -33,6 +34,17 @@ type LaunchCmdArgs struct {
 	Cmd *executor.ExecCommand
 }
 
+type ExecCmdArgs struct {
+	Deadline time.Time
+	Name     string
+	Args     []string
+}
+
+type ExecCmdReturn struct {
+	Output []byte
+	Code   int
+}
+
 func (e *ExecutorRPC) LaunchCmd(cmd *executor.ExecCommand) (*executor.ProcessState, error) {
 	var ps *executor.ProcessState
 	err := e.client.Call("Plugin.LaunchCmd", LaunchCmdArgs{Cmd: cmd}, &ps)
@@ -91,6 +103,20 @@ func (e *ExecutorRPC) Signal(s os.Signal) error {
 	return e.client.Call("Plugin.Signal", &s, new(interface{}))
 }
 
+func (e *ExecutorRPC) Exec(deadline time.Time, name string, args []string) ([]byte, int, error) {
+	req := ExecCmdArgs{
+		Deadline: deadline,
+		Name:     name,
+		Args:     args,
+	}
+	var resp *ExecCmdReturn
+	err := e.client.Call("Plugin.Exec", req, &resp)
+	if resp == nil {
+		return nil, 0, err
+	}
+	return resp.Output, resp.Code, err
+}
+
 type ExecutorRPCServer struct {
 	Impl   executor.Executor
 	logger *log.Logger
@@ -165,6 +191,16 @@ func (e *ExecutorRPCServer) Signal(args os.Signal, resp *interface{}) error {
 	return e.Impl.Signal(args)
 }
 
+func (e *ExecutorRPCServer) Exec(args ExecCmdArgs, result *ExecCmdReturn) error {
+	out, code, err := e.Impl.Exec(args.Deadline, args.Name, args.Args)
+	ret := &ExecCmdReturn{
+		Output: out,
+		Code:   code,
+	}
+	*result = *ret
+	return err
+}
+
 type ExecutorPlugin struct {
 	logger *log.Logger
 	Impl   *ExecutorRPCServer

client/driver/java.go

@@ -390,7 +390,12 @@ func (h *javaHandle) Update(task *structs.Task) error {
 }
 
 func (h *javaHandle) Exec(ctx context.Context, cmd string, args []string) ([]byte, int, error) {
-	return execChroot(ctx, h.taskDir, cmd, args)
+	deadline, ok := ctx.Deadline()
+	if !ok {
+		// No deadline set on context; default to 1 minute
+		deadline = time.Now().Add(time.Minute)
+	}
+	return h.executor.Exec(deadline, cmd, args)
 }
 
 func (h *javaHandle) Signal(s os.Signal) error {

client/driver/raw_exec.go

@@ -10,7 +10,9 @@ import (
 	"time"
 
 	"github.com/hashicorp/go-plugin"
+	"github.com/hashicorp/nomad/client/allocdir"
 	"github.com/hashicorp/nomad/client/config"
+	"github.com/hashicorp/nomad/client/driver/env"
 	"github.com/hashicorp/nomad/client/driver/executor"
 	dstructs "github.com/hashicorp/nomad/client/driver/structs"
 	"github.com/hashicorp/nomad/client/fingerprint"
@@ -48,6 +50,8 @@ type rawExecHandle struct {
 	logger         *log.Logger
 	waitCh         chan *dstructs.WaitResult
 	doneCh         chan struct{}
+	taskEnv        *env.TaskEnvironment
+	taskDir        *allocdir.TaskDir
 }
 
 // NewRawExecDriver is used to create a new raw exec driver
@@ -165,6 +169,8 @@ func (d *RawExecDriver) Start(ctx *ExecContext, task *structs.Task) (DriverHandl
 		logger:         d.logger,
 		doneCh:         make(chan struct{}),
 		waitCh:         make(chan *dstructs.WaitResult, 1),
+		taskEnv:        d.taskEnv,
+		taskDir:        ctx.TaskDir,
 	}
 	go h.run()
 	return h, nil
@@ -212,6 +218,8 @@ func (d *RawExecDriver) Open(ctx *ExecContext, handleID string) (DriverHandle, e
 		version:        id.Version,
 		doneCh:         make(chan struct{}),
 		waitCh:         make(chan *dstructs.WaitResult, 1),
+		taskEnv:        d.taskEnv,
+		taskDir:        ctx.TaskDir,
 	}
 	go h.run()
 	return h, nil
@@ -247,7 +255,7 @@ func (h *rawExecHandle) Update(task *structs.Task) error {
 }
 
 func (h *rawExecHandle) Exec(ctx context.Context, cmd string, args []string) ([]byte, int, error) {
-	return execChroot(ctx, "", cmd, args)
+	return executor.ExecScript(ctx, h.taskDir.Dir, h.taskEnv, nil, cmd, args)
 }
 
 func (h *rawExecHandle) Signal(s os.Signal) error {

client/driver/rkt.go

@@ -22,6 +22,7 @@ import (
 	"github.com/hashicorp/go-version"
 	"github.com/hashicorp/nomad/client/allocdir"
 	"github.com/hashicorp/nomad/client/config"
+	"github.com/hashicorp/nomad/client/driver/env"
 	"github.com/hashicorp/nomad/client/driver/executor"
 	dstructs "github.com/hashicorp/nomad/client/driver/structs"
 	cstructs "github.com/hashicorp/nomad/client/structs"
@@ -87,6 +88,8 @@ type RktDriverConfig struct {
 // rktHandle is returned from Start/Open as a handle to the PID
 type rktHandle struct {
 	uuid           string
+	env            *env.TaskEnvironment
+	taskDir        *allocdir.TaskDir
 	pluginClient   *plugin.Client
 	executorPid    int
 	executor       executor.Executor
@@ -474,6 +477,8 @@ func (d *RktDriver) Start(ctx *ExecContext, task *structs.Task) (DriverHandle, e
 	maxKill := d.DriverContext.config.MaxKillTimeout
 	h := &rktHandle{
 		uuid:           uuid,
+		env:            d.taskEnv,
+		taskDir:        ctx.TaskDir,
 		pluginClient:   pluginClient,
 		executor:       execIntf,
 		executorPid:    ps.Pid,
@@ -514,6 +519,8 @@ func (d *RktDriver) Open(ctx *ExecContext, handleID string) (DriverHandle, error
 	// Return a driver handle
 	h := &rktHandle{
 		uuid:           id.UUID,
+		env:            d.taskEnv,
+		taskDir:        ctx.TaskDir,
 		pluginClient:   pluginClient,
 		executorPid:    id.ExecutorPid,
 		executor:       exec,
@@ -566,7 +573,7 @@ func (h *rktHandle) Exec(ctx context.Context, cmd string, args []string) ([]byte
 	enterArgs[1] = h.uuid
 	enterArgs[2] = cmd
 	copy(enterArgs[3:], args)
-	return execChroot(ctx, "", rktCmd, enterArgs)
+	return executor.ExecScript(ctx, h.taskDir.Dir, h.env, nil, rktCmd, enterArgs)
 }
 
 func (h *rktHandle) Signal(s os.Signal) error {

client/driver/rkt_test.go

@@ -22,7 +22,7 @@ import (
 
 func TestRktVersionRegex(t *testing.T) {
 	if os.Getenv("NOMAD_TEST_RKT") == "" {
-		t.Skip("skipping rkt tests")
+		t.Skip("NOMAD_TEST_RKT unset, skipping")
 	}
 
 	input_rkt := "rkt version 0.8.1"

client/driver/utils.go

@@ -1,7 +1,6 @@
 package driver
 
 import (
-	"context"
 	"encoding/json"
 	"fmt"
 	"io"
@@ -9,10 +8,8 @@ import (
 	"os/exec"
 	"path/filepath"
 	"strings"
-	"syscall"
 	"time"
 
-	"github.com/armon/circbuf"
 	"github.com/hashicorp/go-multierror"
 	"github.com/hashicorp/go-plugin"
 	"github.com/hashicorp/nomad/client/config"
@@ -181,36 +178,3 @@ func getExecutorUser(task *structs.Task) string {
 	}
 	return task.User
 }
-
-// execChroot executes cmd with args inside chroot if set and returns the
-// output, exit code, and error. If chroot is an empty string the command is
-// executed on the host.
-func execChroot(ctx context.Context, chroot, name string, args []string) ([]byte, int, error) {
-	buf, _ := circbuf.NewBuffer(int64(cstructs.CheckBufSize))
-	cmd := exec.CommandContext(ctx, name, args...)
-	cmd.Dir = "/"
-	cmd.Stdout = buf
-	cmd.Stderr = buf
-	if chroot != "" {
-		setChroot(cmd, chroot)
-	}
-	if err := cmd.Run(); err != nil {
-		exitErr, ok := err.(*exec.ExitError)
-		if !ok {
-			// Non-exit error, return it and let the caller treat
-			// it as a critical failure
-			return nil, 0, err
-		}
-
-		// Some kind of error happened; default to critical
-		exitCode := 2
-		if status, ok := exitErr.Sys().(syscall.WaitStatus); ok {
-			exitCode = status.ExitStatus()
-		}
-
-		// Don't return the exitError as the caller only needs the
-		// output and code.
-		return buf.Bytes(), exitCode, nil
-	}
-	return buf.Bytes(), 0, nil
-}

client/task_runner.go

@@ -19,6 +19,7 @@ import (
 	"github.com/golang/snappy"
 	"github.com/hashicorp/consul-template/signals"
 	"github.com/hashicorp/go-multierror"
+	version "github.com/hashicorp/go-version"
 	"github.com/hashicorp/nomad/client/allocdir"
 	"github.com/hashicorp/nomad/client/config"
 	"github.com/hashicorp/nomad/client/driver"
@@ -262,8 +263,11 @@ func (r *TaskRunner) pre060StateFilePath() string {
 	return filepath.Join(r.config.StateDir, "alloc", r.alloc.ID, dirName, "state.json")
 }
 
-// RestoreState is used to restore our state
-func (r *TaskRunner) RestoreState() error {
+// RestoreState is used to restore our state. If a non-empty string is returned
+// the task is restarted with the string as the reason. This is useful for
+// backwards incompatible upgrades that need to restart tasks with a new
+// executor.
+func (r *TaskRunner) RestoreState() (string, error) {
 	// COMPAT: Remove in 0.7.0
 	// 0.6.0 transistioned from individual state files to a single bolt-db.
 	// The upgrade path is to:
@@ -280,7 +284,7 @@ func (r *TaskRunner) RestoreState() error {
 		os.RemoveAll(oldPath)
 	} else if !os.IsNotExist(err) {
 		// Something corrupt in the old state file
-		return err
+		return "", err
 	} else {
 		// We are doing a normal restore
 		err := r.stateDB.View(func(tx *bolt.Tx) error {
@@ -295,7 +299,7 @@ func (r *TaskRunner) RestoreState() error {
 			return nil
 		})
 		if err != nil {
-			return err
+			return "", err
 		}
 
 	}
@@ -307,7 +311,7 @@ func (r *TaskRunner) RestoreState() error {
 	r.setCreatedResources(snap.CreatedResources)
 
 	if err := r.setTaskEnv(); err != nil {
-		return fmt.Errorf("client: failed to create task environment for task %q in allocation %q: %v",
+		return "", fmt.Errorf("client: failed to create task environment for task %q in allocation %q: %v",
 			r.task.Name, r.alloc.ID, err)
 	}
 
@@ -317,7 +321,7 @@ func (r *TaskRunner) RestoreState() error {
 		data, err := ioutil.ReadFile(tokenPath)
 		if err != nil {
 			if !os.IsNotExist(err) {
-				return fmt.Errorf("failed to read token for task %q in alloc %q: %v", r.task.Name, r.alloc.ID, err)
+				return "", fmt.Errorf("failed to read token for task %q in alloc %q: %v", r.task.Name, r.alloc.ID, err)
 			}
 
 			// Token file doesn't exist
@@ -328,10 +332,11 @@ func (r *TaskRunner) RestoreState() error {
 	}
 
 	// Restore the driver
+	restartReason := ""
 	if snap.HandleID != "" {
 		d, err := r.createDriver()
 		if err != nil {
-			return err
+			return "", err
 		}
 
 		ctx := driver.NewExecContext(r.taskDir)
@@ -341,7 +346,11 @@ func (r *TaskRunner) RestoreState() error {
 		if err != nil {
 			r.logger.Printf("[ERR] client: failed to open handle to task %q for alloc %q: %v",
 				r.task.Name, r.alloc.ID, err)
-			return nil
+			return "", nil
+		}
+
+		if pre06ScriptCheck(snap.Version, r.task.Driver, r.task.Services) {
+			restartReason = pre06ScriptCheckReason
 		}
 
 		if err := r.registerServices(d, handle); err != nil {
@@ -360,8 +369,40 @@ func (r *TaskRunner) RestoreState() error {
 		r.running = true
 		r.runningLock.Unlock()
 	}
+	return restartReason, nil
+}
 
-	return nil
+// ver06 is used for checking for pre-0.6 script checks
+var ver06 = version.Must(version.NewVersion("0.6.0dev"))
+
+// pre06ScriptCheckReason is the restart reason given when a pre-0.6 script
+// check is found on an exec/java task.
+const pre06ScriptCheckReason = "upgrading pre-0.6 script checks"
+
+// pre06ScriptCheck returns true if version is prior to 0.6.0dev, has a script
+// check, and uses exec or java drivers.
+func pre06ScriptCheck(ver, driver string, services []*structs.Service) bool {
+	if driver != "exec" && driver != "java" && driver != "mock_driver" {
+		// Only exec and java are affected
+		return false
+	}
+	v, err := version.NewVersion(ver)
+	if err != nil {
+		// Treat it as old
+		return true
+	}
+	if !v.LessThan(ver06) {
+		// >= 0.6.0dev
+		return false
+	}
+	for _, service := range services {
+		for _, check := range service.Checks {
+			if check.Type == "script" {
+				return true
+			}
+		}
+	}
+	return false
 }
 
 // SaveState is used to snapshot our state
@@ -1118,6 +1159,10 @@ func (r *TaskRunner) run() {
 					return
 				}
 
+				// Remove from consul before killing the task so that traffic
+				// can be rerouted
+				r.consul.RemoveTask(r.alloc.ID, r.task)
+
 				// Store the task event that provides context on the task
 				// destroy. The Killed event is set from the alloc_runner and
 				// doesn't add detail

client/task_runner_test.go

@@ -75,6 +75,7 @@ func testTaskRunner(t *testing.T, restarts bool) *taskRunnerTestCtx {
 func testTaskRunnerFromAlloc(t *testing.T, restarts bool, alloc *structs.Allocation) *taskRunnerTestCtx {
 	logger := testLogger()
 	conf := config.DefaultConfig()
+	conf.Node = mock.Node()
 	conf.StateDir = os.TempDir()
 	conf.AllocDir = os.TempDir()
 
@@ -380,7 +381,7 @@ func TestTaskRunner_SaveRestoreState(t *testing.T) {
 	tr2 := NewTaskRunner(ctx.tr.logger, ctx.tr.config, ctx.tr.stateDB, ctx.upd.Update,
 		ctx.tr.taskDir, ctx.tr.alloc, task2, ctx.tr.vaultClient, ctx.tr.consul)
 	tr2.restartTracker = noRestartsTracker()
-	if err := tr2.RestoreState(); err != nil {
+	if _, err := tr2.RestoreState(); err != nil {
 		t.Fatalf("err: %v", err)
 	}
 	go tr2.Run()
@@ -1531,3 +1532,49 @@ func TestTaskRunner_CleanupFail(t *testing.T) {
 		t.Fatalf("expected %#v but found: %#v", expected, ctx.tr.createdResources.Resources)
 	}
 }
+
+func TestTaskRunner_Pre06ScriptCheck(t *testing.T) {
+	run := func(ver, driver, checkType string, exp bool) (string, func(t *testing.T)) {
+		name := fmt.Sprintf("%s %s %s returns %t", ver, driver, checkType, exp)
+		return name, func(t *testing.T) {
+			services := []*structs.Service{
+				{
+					Checks: []*structs.ServiceCheck{
+						{
+							Type: checkType,
+						},
+					},
+				},
+			}
+			if act := pre06ScriptCheck(ver, driver, services); act != exp {
+				t.Errorf("expected %t received %t", exp, act)
+			}
+		}
+	}
+	t.Run(run("0.5.6", "exec", "script", true))
+	t.Run(run("0.5.6", "java", "script", true))
+	t.Run(run("0.5.6", "mock_driver", "script", true))
+	t.Run(run("0.5.9", "exec", "script", true))
+	t.Run(run("0.5.9", "java", "script", true))
+	t.Run(run("0.5.9", "mock_driver", "script", true))
+
+	t.Run(run("0.6.0dev", "exec", "script", false))
+	t.Run(run("0.6.0dev", "java", "script", false))
+	t.Run(run("0.6.0dev", "mock_driver", "script", false))
+	t.Run(run("0.6.0", "exec", "script", false))
+	t.Run(run("0.6.0", "java", "script", false))
+	t.Run(run("0.6.0", "mock_driver", "script", false))
+	t.Run(run("1.0.0", "exec", "script", false))
+	t.Run(run("1.0.0", "java", "script", false))
+	t.Run(run("1.0.0", "mock_driver", "script", false))
+
+	t.Run(run("0.5.6", "rkt", "script", false))
+	t.Run(run("0.5.6", "docker", "script", false))
+	t.Run(run("0.5.6", "qemu", "script", false))
+	t.Run(run("0.5.6", "raw_exec", "script", false))
+	t.Run(run("0.5.6", "invalid", "script", false))
+
+	t.Run(run("0.5.6", "exec", "tcp", false))
+	t.Run(run("0.5.6", "java", "tcp", false))
+	t.Run(run("0.5.6", "mock_driver", "tcp", false))
+}

command/agent/agent.go

@@ -351,43 +351,22 @@ func (a *Agent) setupServer() error {
 	a.server = server
 
 	// Consul check addresses default to bind but can be toggled to use advertise
-	httpCheckAddr := a.config.normalizedAddrs.HTTP
 	rpcCheckAddr := a.config.normalizedAddrs.RPC
 	serfCheckAddr := a.config.normalizedAddrs.Serf
 	if *a.config.Consul.ChecksUseAdvertise {
-		httpCheckAddr = a.config.AdvertiseAddrs.HTTP
 		rpcCheckAddr = a.config.AdvertiseAddrs.RPC
 		serfCheckAddr = a.config.AdvertiseAddrs.Serf
 	}
 
 	// Create the Nomad Server services for Consul
-	// TODO re-introduce HTTP/S checks when Consul 0.7.1 comes out
 	if *a.config.Consul.AutoAdvertise {
 		httpServ := &structs.Service{
 			Name:      a.config.Consul.ServerServiceName,
 			PortLabel: a.config.AdvertiseAddrs.HTTP,
 			Tags:      []string{consul.ServiceTagHTTP},
-			Checks: []*structs.ServiceCheck{
-				&structs.ServiceCheck{
-					Name:      "Nomad Server HTTP Check",
-					Type:      "http",
-					Path:      "/v1/status/peers",
-					Protocol:  "http",
-					Interval:  serverHttpCheckInterval,
-					Timeout:   serverHttpCheckTimeout,
-					PortLabel: httpCheckAddr,
-				},
-			},
 		}
-		if conf.TLSConfig.EnableHTTP {
-			if a.consulSupportsTLSSkipVerify {
-				httpServ.Checks[0].Protocol = "https"
-				httpServ.Checks[0].TLSSkipVerify = true
-			} else {
-				// No TLSSkipVerify support, don't register https check
-				a.logger.Printf("[WARN] agent: not registering Nomad HTTPS Health Check because it requires Consul>=0.7.2")
-				httpServ.Checks = []*structs.ServiceCheck{}
-			}
+		if check := a.agentHTTPCheck(); check != nil {
+			httpServ.Checks = []*structs.ServiceCheck{check}
 		}
 		rpcServ := &structs.Service{
 			Name:      a.config.Consul.ServerServiceName,
@@ -482,39 +461,15 @@ func (a *Agent) setupClient() error {
 	}
 	a.client = client
 
-	// Resolve the http check address
-	httpCheckAddr := a.config.normalizedAddrs.HTTP
-	if *a.config.Consul.ChecksUseAdvertise {
-		httpCheckAddr = a.config.AdvertiseAddrs.HTTP
-	}
-
 	// Create the Nomad Client  services for Consul
 	if *a.config.Consul.AutoAdvertise {
 		httpServ := &structs.Service{
 			Name:      a.config.Consul.ClientServiceName,
 			PortLabel: a.config.AdvertiseAddrs.HTTP,
 			Tags:      []string{consul.ServiceTagHTTP},
-			Checks: []*structs.ServiceCheck{
-				&structs.ServiceCheck{
-					Name:      "Nomad Client HTTP Check",
-					Type:      "http",
-					Path:      "/v1/agent/servers",
-					Protocol:  "http",
-					Interval:  clientHttpCheckInterval,
-					Timeout:   clientHttpCheckTimeout,
-					PortLabel: httpCheckAddr,
-				},
-			},
 		}
-		if conf.TLSConfig.EnableHTTP {
-			if a.consulSupportsTLSSkipVerify {
-				httpServ.Checks[0].Protocol = "https"
-				httpServ.Checks[0].TLSSkipVerify = true
-			} else {
-				// No TLSSkipVerify support, don't register https check
-				a.logger.Printf("[WARN] agent: not registering Nomad HTTPS Health Check because it requires Consul>=0.7.2")
-				httpServ.Checks = []*structs.ServiceCheck{}
-			}
+		if check := a.agentHTTPCheck(); check != nil {
+			httpServ.Checks = []*structs.ServiceCheck{check}
 		}
 		if err := a.consulService.RegisterAgent(consulRoleClient, []*structs.Service{httpServ}); err != nil {
 			return err
@@ -524,6 +479,42 @@ func (a *Agent) setupClient() error {
 	return nil
 }
 
+// agentHTTPCheck returns a health check for the agent's HTTP API if possible.
+// If no HTTP health check can be supported nil is returned.
+func (a *Agent) agentHTTPCheck() *structs.ServiceCheck {
+	// Resolve the http check address
+	httpCheckAddr := a.config.normalizedAddrs.HTTP
+	if *a.config.Consul.ChecksUseAdvertise {
+		httpCheckAddr = a.config.AdvertiseAddrs.HTTP
+	}
+	check := structs.ServiceCheck{
+		Name:      "Nomad Client HTTP Check",
+		Type:      "http",
+		Path:      "/v1/agent/servers",
+		Protocol:  "http",
+		Interval:  clientHttpCheckInterval,
+		Timeout:   clientHttpCheckTimeout,
+		PortLabel: httpCheckAddr,
+	}
+	if !a.config.TLSConfig.EnableHTTP {
+		// No HTTPS, return a plain http check
+		return &check
+	}
+	if !a.consulSupportsTLSSkipVerify {
+		a.logger.Printf("[WARN] agent: not registering Nomad HTTPS Health Check because it requires Consul>=0.7.2")
+		return nil
+	}
+	if a.config.TLSConfig.VerifyHTTPSClient {
+		a.logger.Printf("[WARN] agent: not registering Nomad HTTPS Health Check because verify_https_client enabled")
+		return nil
+	}
+
+	// HTTPS enabled; skip verification
+	check.Protocol = "https"
+	check.TLSSkipVerify = true
+	return &check
+}
+
 // reservePortsForClient reserves a range of ports for the client to use when
 // it creates various plugins for log collection, executors, drivers, etc
 func (a *Agent) reservePortsForClient(conf *clientconfig.Config) error {
@@ -691,7 +682,7 @@ func (a *Agent) setupConsul(consulConfig *config.ConsulConfig) error {
 	}
 
 	// Determine version for TLSSkipVerify
-	if self, err := client.Agent().Self(); err != nil {
+	if self, err := client.Agent().Self(); err == nil {
 		a.consulSupportsTLSSkipVerify = consulSupportsTLSSkipVerify(self)
 	}
 

command/agent/agent_test.go

@@ -4,12 +4,14 @@ import (
 	"encoding/json"
 	"fmt"
 	"io/ioutil"
+	"log"
 	"net"
 	"os"
 	"strings"
 	"testing"
 	"time"
 
+	"github.com/hashicorp/nomad/helper"
 	"github.com/hashicorp/nomad/nomad"
 	sconfig "github.com/hashicorp/nomad/nomad/structs/config"
 )
@@ -360,6 +362,98 @@ func TestAgent_ClientConfig(t *testing.T) {
 	}
 }
 
+// TestAgent_HTTPCheck asserts Agent.agentHTTPCheck properly alters the HTTP
+// API health check depending on configuration.
+func TestAgent_HTTPCheck(t *testing.T) {
+	logger := log.New(ioutil.Discard, "", 0)
+	if testing.Verbose() {
+		logger = log.New(os.Stdout, "[TestAgent_HTTPCheck] ", log.Lshortfile)
+	}
+	agent := func() *Agent {
+		return &Agent{
+			logger: logger,
+			config: &Config{
+				AdvertiseAddrs:  &AdvertiseAddrs{HTTP: "advertise:4646"},
+				normalizedAddrs: &Addresses{HTTP: "normalized:4646"},
+				Consul: &sconfig.ConsulConfig{
+					ChecksUseAdvertise: helper.BoolToPtr(false),
+				},
+				TLSConfig: &sconfig.TLSConfig{EnableHTTP: false},
+			},
+		}
+	}
+
+	t.Run("Plain HTTP Check", func(t *testing.T) {
+		a := agent()
+		check := a.agentHTTPCheck()
+		if check == nil {
+			t.Fatalf("expected non-nil check")
+		}
+		if check.Type != "http" {
+			t.Errorf("expected http check not: %q", check.Type)
+		}
+		if expected := "/v1/agent/servers"; check.Path != expected {
+			t.Errorf("expected %q path not: %q", expected, check.Path)
+		}
+		if check.Protocol != "http" {
+			t.Errorf("expected http proto not: %q", check.Protocol)
+		}
+		if expected := a.config.normalizedAddrs.HTTP; check.PortLabel != expected {
+			t.Errorf("expected normalized addr not %q", check.PortLabel)
+		}
+	})
+
+	t.Run("Plain HTTP + ChecksUseAdvertise", func(t *testing.T) {
+		a := agent()
+		a.config.Consul.ChecksUseAdvertise = helper.BoolToPtr(true)
+		check := a.agentHTTPCheck()
+		if check == nil {
+			t.Fatalf("expected non-nil check")
+		}
+		if expected := a.config.AdvertiseAddrs.HTTP; check.PortLabel != expected {
+			t.Errorf("expected advertise addr not %q", check.PortLabel)
+		}
+	})
+
+	t.Run("HTTPS + consulSupportsTLSSkipVerify", func(t *testing.T) {
+		a := agent()
+		a.consulSupportsTLSSkipVerify = true
+		a.config.TLSConfig.EnableHTTP = true
+
+		check := a.agentHTTPCheck()
+		if check == nil {
+			t.Fatalf("expected non-nil check")
+		}
+		if !check.TLSSkipVerify {
+			t.Errorf("expected tls skip verify")
+		}
+		if check.Protocol != "https" {
+			t.Errorf("expected https not: %q", check.Protocol)
+		}
+	})
+
+	t.Run("HTTPS w/o TLSSkipVerify", func(t *testing.T) {
+		a := agent()
+		a.consulSupportsTLSSkipVerify = false
+		a.config.TLSConfig.EnableHTTP = true
+
+		if check := a.agentHTTPCheck(); check != nil {
+			t.Fatalf("expected nil check not: %#v", check)
+		}
+	})
+
+	t.Run("HTTPS + VerifyHTTPSClient", func(t *testing.T) {
+		a := agent()
+		a.consulSupportsTLSSkipVerify = true
+		a.config.TLSConfig.EnableHTTP = true
+		a.config.TLSConfig.VerifyHTTPSClient = true
+
+		if check := a.agentHTTPCheck(); check != nil {
+			t.Fatalf("expected nil check not: %#v", check)
+		}
+	})
+}
+
 func TestAgent_ConsulSupportsTLSSkipVerify(t *testing.T) {
 	assertSupport := func(expected bool, blob string) {
 		self := map[string]map[string]interface{}{}

command/agent/config-test-fixtures/basic.hcl

@@ -138,4 +138,5 @@ tls {
     ca_file = "foo"
     cert_file = "bar"
     key_file = "pipe"
+    verify_https_client = true
 }

command/agent/config_parse.go

@@ -689,6 +689,7 @@ func parseTLSConfig(result **config.TLSConfig, list *ast.ObjectList) error {
 		"ca_file",
 		"cert_file",
 		"key_file",
+		"verify_https_client",
 	}
 
 	if err := checkHCLKeys(listVal, valid); err != nil {

command/agent/config_parse_test.go

@@ -154,6 +154,7 @@ func TestConfig_Parse(t *testing.T) {
 					CAFile:               "foo",
 					CertFile:             "bar",
 					KeyFile:              "pipe",
+					VerifyHTTPSClient:    true,
 				},
 				HTTPAPIResponseHeaders: map[string]string{
 					"Access-Control-Allow-Origin": "*",

command/agent/consul/int_test.go

@@ -45,16 +45,20 @@ func TestConsul_Integration(t *testing.T) {
 		}
 	}
 	// Create an embedded Consul server
-	testconsul := testutil.NewTestServerConfig(t, func(c *testutil.TestServerConfig) {
+	testconsul, err := testutil.NewTestServerConfig(func(c *testutil.TestServerConfig) {
 		// If -v wasn't specified squelch consul logging
 		if !testing.Verbose() {
 			c.Stdout = ioutil.Discard
 			c.Stderr = ioutil.Discard
 		}
 	})
+	if err != nil {
+		t.Fatalf("error starting test consul server: %v", err)
+	}
 	defer testconsul.Stop()
 
 	conf := config.DefaultConfig()
+	conf.Node = mock.Node()
 	conf.ConsulConfig.Addr = testconsul.HTTPAddr
 	consulConfig, err := conf.ConsulConfig.ApiConfig()
 	if err != nil {

command/agent/http.go

@@ -53,7 +53,7 @@ func NewHTTPServer(agent *Agent, config *Config) (*HTTPServer, error) {
 	// If TLS is enabled, wrap the listener with a TLS listener
 	if config.TLSConfig.EnableHTTP {
 		tlsConf := &tlsutil.Config{
-			VerifyIncoming:       false,
+			VerifyIncoming:       config.TLSConfig.VerifyHTTPSClient,
 			VerifyOutgoing:       true,
 			VerifyServerHostname: config.TLSConfig.VerifyServerHostname,
 			CAFile:               config.TLSConfig.CAFile,

command/agent/http_test.go

@@ -2,12 +2,16 @@ package agent
 
 import (
 	"bytes"
+	"crypto/tls"
+	"crypto/x509"
 	"encoding/json"
 	"fmt"
 	"io"
 	"io/ioutil"
+	"net"
 	"net/http"
 	"net/http/httptest"
+	"net/url"
 	"os"
 	"strconv"
 	"testing"
@@ -15,6 +19,7 @@ import (
 
 	"github.com/hashicorp/nomad/nomad/mock"
 	"github.com/hashicorp/nomad/nomad/structs"
+	"github.com/hashicorp/nomad/nomad/structs/config"
 	"github.com/hashicorp/nomad/testutil"
 )
 
@@ -337,6 +342,126 @@ func TestParseRegion(t *testing.T) {
 	}
 }
 
+// TestHTTP_VerifyHTTPSClient asserts that a client certificate signed by the
+// appropriate CA is required when VerifyHTTPSClient=true.
+func TestHTTP_VerifyHTTPSClient(t *testing.T) {
+	const (
+		cafile  = "../../helper/tlsutil/testdata/ca.pem"
+		foocert = "../../helper/tlsutil/testdata/nomad-foo.pem"
+		fookey  = "../../helper/tlsutil/testdata/nomad-foo-key.pem"
+	)
+	s := makeHTTPServer(t, func(c *Config) {
+		c.Region = "foo" // match the region on foocert
+		c.TLSConfig = &config.TLSConfig{
+			EnableHTTP:        true,
+			VerifyHTTPSClient: true,
+			CAFile:            cafile,
+			CertFile:          foocert,
+			KeyFile:           fookey,
+		}
+	})
+	defer s.Cleanup()
+
+	reqURL := fmt.Sprintf("https://%s/v1/agent/self", s.Agent.config.AdvertiseAddrs.HTTP)
+
+	// FAIL: Requests that expect 127.0.0.1 as the name should fail
+	resp, err := http.Get(reqURL)
+	if err == nil {
+		resp.Body.Close()
+		t.Fatalf("expected non-nil error but received: %v", resp.StatusCode)
+	}
+	urlErr, ok := err.(*url.Error)
+	if !ok {
+		t.Fatalf("expected a *url.Error but received: %T -> %v", err, err)
+	}
+	hostErr, ok := urlErr.Err.(x509.HostnameError)
+	if !ok {
+		t.Fatalf("expected a x509.HostnameError but received: %T -> %v", urlErr.Err, urlErr.Err)
+	}
+	if expected := "127.0.0.1"; hostErr.Host != expected {
+		t.Fatalf("expected hostname on error to be %q but found %q", expected, hostErr.Host)
+	}
+
+	// FAIL: Requests that specify a valid hostname but not the CA should
+	// fail
+	tlsConf := &tls.Config{
+		ServerName: "client.regionFoo.nomad",
+	}
+	transport := &http.Transport{TLSClientConfig: tlsConf}
+	client := &http.Client{Transport: transport}
+	req, err := http.NewRequest("GET", reqURL, nil)
+	if err != nil {
+		t.Fatalf("error creating request: %v", err)
+	}
+	resp, err = client.Do(req)
+	if err == nil {
+		resp.Body.Close()
+		t.Fatalf("expected non-nil error but received: %v", resp.StatusCode)
+	}
+	urlErr, ok = err.(*url.Error)
+	if !ok {
+		t.Fatalf("expected a *url.Error but received: %T -> %v", err, err)
+	}
+	_, ok = urlErr.Err.(x509.UnknownAuthorityError)
+	if !ok {
+		t.Fatalf("expected a x509.UnknownAuthorityError but received: %T -> %v", urlErr.Err, urlErr.Err)
+	}
+
+	// FAIL: Requests that specify a valid hostname and CA cert but lack a
+	// client certificate should fail
+	cacertBytes, err := ioutil.ReadFile(cafile)
+	if err != nil {
+		t.Fatalf("error reading cacert: %v", err)
+	}
+	tlsConf.RootCAs = x509.NewCertPool()
+	tlsConf.RootCAs.AppendCertsFromPEM(cacertBytes)
+	req, err = http.NewRequest("GET", reqURL, nil)
+	if err != nil {
+		t.Fatalf("error creating request: %v", err)
+	}
+	resp, err = client.Do(req)
+	if err == nil {
+		resp.Body.Close()
+		t.Fatalf("expected non-nil error but received: %v", resp.StatusCode)
+	}
+	urlErr, ok = err.(*url.Error)
+	if !ok {
+		t.Fatalf("expected a *url.Error but received: %T -> %v", err, err)
+	}
+	opErr, ok := urlErr.Err.(*net.OpError)
+	if !ok {
+		t.Fatalf("expected a *net.OpErr but received: %T -> %v", urlErr.Err, urlErr.Err)
+	}
+	const badCertificate = "tls: bad certificate" // from crypto/tls/alert.go:52 and RFC 5246 § A.3
+	if opErr.Err.Error() != badCertificate {
+		t.Fatalf("expected tls.alert bad_certificate but received: %q", opErr.Err.Error())
+	}
+
+	// PASS: Requests that specify a valid hostname, CA cert, and client
+	// certificate succeed.
+	tlsConf.GetClientCertificate = func(*tls.CertificateRequestInfo) (*tls.Certificate, error) {
+		c, err := tls.LoadX509KeyPair(foocert, fookey)
+		if err != nil {
+			return nil, err
+		}
+		return &c, nil
+	}
+	transport = &http.Transport{TLSClientConfig: tlsConf}
+	client = &http.Client{Transport: transport}
+	req, err = http.NewRequest("GET", reqURL, nil)
+	if err != nil {
+		t.Fatalf("error creating request: %v", err)
+	}
+	resp, err = client.Do(req)
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	resp.Body.Close()
+	if resp.StatusCode != 200 {
+		t.Fatalf("expected 200 status code but got: %d", resp.StatusCode)
+	}
+}
+
 // assertIndex tests that X-Nomad-Index is set and non-zero
 func assertIndex(t *testing.T, resp *httptest.ResponseRecorder) {
 	header := resp.Header().Get("X-Nomad-Index")

nomad/structs/config/consul.go

@@ -143,7 +143,7 @@ func (a *ConsulConfig) Merge(b *ConsulConfig) *ConsulConfig {
 	return result
 }
 
-// ApiConfig() returns a usable Consul config that can be passed directly to
+// ApiConfig returns a usable Consul config that can be passed directly to
 // hashicorp/consul/api.  NOTE: datacenter is not set
 func (c *ConsulConfig) ApiConfig() (*consul.Config, error) {
 	config := consul.DefaultConfig()

nomad/structs/config/tls.go

@@ -28,6 +28,9 @@ type TLSConfig struct {
 	// KeyFile is used to provide a TLS key that is used for serving TLS connections.
 	// Must be provided to serve TLS connections.
 	KeyFile string `mapstructure:"key_file"`
+
+	// Verify connections to the HTTPS API
+	VerifyHTTPSClient bool `mapstructure:"verify_https_client"`
 }
 
 // Merge is used to merge two TLS configs together
@@ -52,6 +55,8 @@ func (t *TLSConfig) Merge(b *TLSConfig) *TLSConfig {
 	if b.KeyFile != "" {
 		result.KeyFile = b.KeyFile
 	}
-
+	if b.VerifyHTTPSClient {
+		result.VerifyHTTPSClient = true
+	}
 	return &result
 }

scripts/build.sh

@@ -64,11 +64,15 @@ for target in $targets; do
             ;;
         "windows_386")
             echo "==> Building windows 386..."
-            CGO_ENABLED=1 GOARCH="386"   GOOS="windows" go build -ldflags "-X $LDFLAG" -o "pkg/windows_386/nomad.exe"
+            CGO_ENABLED=0 GOARCH="386"   GOOS="windows" go build -ldflags "-X $LDFLAG" -o "pkg/windows_386/nomad.exe"
+            # Use the following if CGO is required
+            #CGO_ENABLED=1 CXX=i686-w64-mingw32-g++ CC=i686-w64-mingw32-gcc GOARCH="386"   GOOS="windows" go build -ldflags "-X $LDFLAG" -o "pkg/windows_386/nomad.exe"
             ;;
         "windows_amd64")
             echo "==> Building windows amd64..."
-            CGO_ENABLED=1 GOARCH="amd64" GOOS="windows" go build -ldflags "-X $LDFLAG" -o "pkg/windows_amd64/nomad.exe"
+            CGO_ENABLED=0 GOARCH="amd64" GOOS="windows" go build -ldflags "-X $LDFLAG" -o "pkg/windows_amd64/nomad.exe"
+            # Use the following if CGO is required
+            #CGO_ENABLED=1 CXX=x86_64-w64-mingw32-g++ CC=x86_64-w64-mingw32-gcc GOARCH="amd64" GOOS="windows" go build -ldflags "-X $LDFLAG" -o "pkg/windows_amd64/nomad.exe"
             ;;
         "darwin_amd64")
             echo "==> Building darwin amd64..."

vendor/github.com/Microsoft/go-winio/backup.go

@@ -185,7 +185,6 @@ type BackupFileReader struct {
 // Read will attempt to read the security descriptor of the file.
 func NewBackupFileReader(f *os.File, includeSecurity bool) *BackupFileReader {
 	r := &BackupFileReader{f, includeSecurity, 0}
-	runtime.SetFinalizer(r, func(r *BackupFileReader) { r.Close() })
 	return r
 }
 
@@ -196,6 +195,7 @@ func (r *BackupFileReader) Read(b []byte) (int, error) {
 	if err != nil {
 		return 0, &os.PathError{"BackupRead", r.f.Name(), err}
 	}
+	runtime.KeepAlive(r.f)
 	if bytesRead == 0 {
 		return 0, io.EOF
 	}
@@ -207,6 +207,7 @@ func (r *BackupFileReader) Read(b []byte) (int, error) {
 func (r *BackupFileReader) Close() error {
 	if r.ctx != 0 {
 		backupRead(syscall.Handle(r.f.Fd()), nil, nil, true, false, &r.ctx)
+		runtime.KeepAlive(r.f)
 		r.ctx = 0
 	}
 	return nil
@@ -223,7 +224,6 @@ type BackupFileWriter struct {
 // Write() will attempt to restore the security descriptor from the stream.
 func NewBackupFileWriter(f *os.File, includeSecurity bool) *BackupFileWriter {
 	w := &BackupFileWriter{f, includeSecurity, 0}
-	runtime.SetFinalizer(w, func(w *BackupFileWriter) { w.Close() })
 	return w
 }
 
@@ -234,6 +234,7 @@ func (w *BackupFileWriter) Write(b []byte) (int, error) {
 	if err != nil {
 		return 0, &os.PathError{"BackupWrite", w.f.Name(), err}
 	}
+	runtime.KeepAlive(w.f)
 	if int(bytesWritten) != len(b) {
 		return int(bytesWritten), errors.New("not all bytes could be written")
 	}
@@ -245,6 +246,7 @@ func (w *BackupFileWriter) Write(b []byte) (int, error) {
 func (w *BackupFileWriter) Close() error {
 	if w.ctx != 0 {
 		backupWrite(syscall.Handle(w.f.Fd()), nil, nil, true, false, &w.ctx)
+		runtime.KeepAlive(w.f)
 		w.ctx = 0
 	}
 	return nil

vendor/github.com/Microsoft/go-winio/file.go

@@ -7,6 +7,7 @@ import (
 	"io"
 	"runtime"
 	"sync"
+	"sync/atomic"
 	"syscall"
 	"time"
 )
@@ -17,6 +18,12 @@ import (
 //sys setFileCompletionNotificationModes(h syscall.Handle, flags uint8) (err error) = SetFileCompletionNotificationModes
 //sys timeBeginPeriod(period uint32) (n int32) = winmm.timeBeginPeriod
 
+type atomicBool int32
+
+func (b *atomicBool) isSet() bool { return atomic.LoadInt32((*int32)(b)) != 0 }
+func (b *atomicBool) setFalse()   { atomic.StoreInt32((*int32)(b), 0) }
+func (b *atomicBool) setTrue()    { atomic.StoreInt32((*int32)(b), 1) }
+
 const (
 	cFILE_SKIP_COMPLETION_PORT_ON_SUCCESS = 1
 	cFILE_SKIP_SET_EVENT_ON_HANDLE        = 2
@@ -33,6 +40,8 @@ func (e *timeoutError) Error() string   { return "i/o timeout" }
 func (e *timeoutError) Timeout() bool   { return true }
 func (e *timeoutError) Temporary() bool { return true }
 
+type timeoutChan chan struct{}
+
 var ioInitOnce sync.Once
 var ioCompletionPort syscall.Handle
 
@@ -63,8 +72,16 @@ type win32File struct {
 	handle        syscall.Handle
 	wg            sync.WaitGroup
 	closing       bool
-	readDeadline  time.Time
-	writeDeadline time.Time
+	readDeadline  deadlineHandler
+	writeDeadline deadlineHandler
+}
+
+type deadlineHandler struct {
+	setLock     sync.Mutex
+	channel     timeoutChan
+	channelLock sync.RWMutex
+	timer       *time.Timer
+	timedout    atomicBool
 }
 
 // makeWin32File makes a new win32File from an existing file handle
@@ -79,7 +96,8 @@ func makeWin32File(h syscall.Handle) (*win32File, error) {
 	if err != nil {
 		return nil, err
 	}
-	runtime.SetFinalizer(f, (*win32File).closeHandle)
+	f.readDeadline.channel = make(timeoutChan)
+	f.writeDeadline.channel = make(timeoutChan)
 	return f, nil
 }
 
@@ -103,7 +121,6 @@ func (f *win32File) closeHandle() {
 // Close closes a win32File.
 func (f *win32File) Close() error {
 	f.closeHandle()
-	runtime.SetFinalizer(f, nil)
 	return nil
 }
 
@@ -136,47 +153,47 @@ func ioCompletionProcessor(h syscall.Handle) {
 
 // asyncIo processes the return value from ReadFile or WriteFile, blocking until
 // the operation has actually completed.
-func (f *win32File) asyncIo(c *ioOperation, deadline time.Time, bytes uint32, err error) (int, error) {
+func (f *win32File) asyncIo(c *ioOperation, d *deadlineHandler, bytes uint32, err error) (int, error) {
 	if err != syscall.ERROR_IO_PENDING {
 		f.wg.Done()
 		return int(bytes), err
-	} else {
-		var r ioResult
-		wait := true
-		timedout := false
-		if f.closing {
-			cancelIoEx(f.handle, &c.o)
-		} else if !deadline.IsZero() {
-			now := time.Now()
-			if !deadline.After(now) {
-				timedout = true
-			} else {
-				timeout := time.After(deadline.Sub(now))
-				select {
-				case r = <-c.ch:
-					wait = false
-				case <-timeout:
-					timedout = true
-				}
-			}
-		}
-		if timedout {
-			cancelIoEx(f.handle, &c.o)
-		}
-		if wait {
-			r = <-c.ch
-		}
+	}
+
+	if f.closing {
+		cancelIoEx(f.handle, &c.o)
+	}
+
+	var timeout timeoutChan
+	if d != nil {
+		d.channelLock.Lock()
+		timeout = d.channel
+		d.channelLock.Unlock()
+	}
+
+	var r ioResult
+	select {
+	case r = <-c.ch:
 		err = r.err
 		if err == syscall.ERROR_OPERATION_ABORTED {
 			if f.closing {
 				err = ErrFileClosed
-			} else if timedout {
-				err = ErrTimeout
 			}
 		}
-		f.wg.Done()
-		return int(r.bytes), err
+	case <-timeout:
+		cancelIoEx(f.handle, &c.o)
+		r = <-c.ch
+		err = r.err
+		if err == syscall.ERROR_OPERATION_ABORTED {
+			err = ErrTimeout
+		}
 	}
+
+	// runtime.KeepAlive is needed, as c is passed via native
+	// code to ioCompletionProcessor, c must remain alive
+	// until the channel read is complete.
+	runtime.KeepAlive(c)
+	f.wg.Done()
+	return int(r.bytes), err
 }
 
 // Read reads from a file handle.
@@ -185,9 +202,15 @@ func (f *win32File) Read(b []byte) (int, error) {
 	if err != nil {
 		return 0, err
 	}
+
+	if f.readDeadline.timedout.isSet() {
+		return 0, ErrTimeout
+	}
+
 	var bytes uint32
 	err = syscall.ReadFile(f.handle, b, &bytes, &c.o)
-	n, err := f.asyncIo(c, f.readDeadline, bytes, err)
+	n, err := f.asyncIo(c, &f.readDeadline, bytes, err)
+	runtime.KeepAlive(b)
 
 	// Handle EOF conditions.
 	if err == nil && n == 0 && len(b) != 0 {
@@ -205,17 +228,66 @@ func (f *win32File) Write(b []byte) (int, error) {
 	if err != nil {
 		return 0, err
 	}
+	if f.writeDeadline.timedout.isSet() {
+		return 0, ErrTimeout
+	}
+
 	var bytes uint32
 	err = syscall.WriteFile(f.handle, b, &bytes, &c.o)
-	return f.asyncIo(c, f.writeDeadline, bytes, err)
+	n, err := f.asyncIo(c, &f.writeDeadline, bytes, err)
+	runtime.KeepAlive(b)
+	return n, err
 }
 
-func (f *win32File) SetReadDeadline(t time.Time) error {
-	f.readDeadline = t
-	return nil
+func (f *win32File) SetReadDeadline(deadline time.Time) error {
+	return f.readDeadline.set(deadline)
 }
 
-func (f *win32File) SetWriteDeadline(t time.Time) error {
-	f.writeDeadline = t
+func (f *win32File) SetWriteDeadline(deadline time.Time) error {
+	return f.writeDeadline.set(deadline)
+}
+
+func (f *win32File) Flush() error {
+	return syscall.FlushFileBuffers(f.handle)
+}
+
+func (d *deadlineHandler) set(deadline time.Time) error {
+	d.setLock.Lock()
+	defer d.setLock.Unlock()
+
+	if d.timer != nil {
+		if !d.timer.Stop() {
+			<-d.channel
+		}
+		d.timer = nil
+	}
+	d.timedout.setFalse()
+
+	select {
+	case <-d.channel:
+		d.channelLock.Lock()
+		d.channel = make(chan struct{})
+		d.channelLock.Unlock()
+	default:
+	}
+
+	if deadline.IsZero() {
+		return nil
+	}
+
+	timeoutIO := func() {
+		d.timedout.setTrue()
+		close(d.channel)
+	}
+
+	now := time.Now()
+	duration := deadline.Sub(now)
+	if deadline.After(now) {
+		// Deadline is in the future, set a timer to wait
+		d.timer = time.AfterFunc(duration, timeoutIO)
+	} else {
+		// Deadline is in the past. Cancel all pending IO now.
+		timeoutIO()
+	}
 	return nil
 }

vendor/github.com/Microsoft/go-winio/fileinfo.go

@@ -4,6 +4,7 @@ package winio
 
 import (
 	"os"
+	"runtime"
 	"syscall"
 	"unsafe"
 )
@@ -28,6 +29,7 @@ func GetFileBasicInfo(f *os.File) (*FileBasicInfo, error) {
 	if err := getFileInformationByHandleEx(syscall.Handle(f.Fd()), fileBasicInfo, (*byte)(unsafe.Pointer(bi)), uint32(unsafe.Sizeof(*bi))); err != nil {
 		return nil, &os.PathError{Op: "GetFileInformationByHandleEx", Path: f.Name(), Err: err}
 	}
+	runtime.KeepAlive(f)
 	return bi, nil
 }
 
@@ -36,6 +38,7 @@ func SetFileBasicInfo(f *os.File, bi *FileBasicInfo) error {
 	if err := setFileInformationByHandle(syscall.Handle(f.Fd()), fileBasicInfo, (*byte)(unsafe.Pointer(bi)), uint32(unsafe.Sizeof(*bi))); err != nil {
 		return &os.PathError{Op: "SetFileInformationByHandle", Path: f.Name(), Err: err}
 	}
+	runtime.KeepAlive(f)
 	return nil
 }
 
@@ -52,5 +55,6 @@ func GetFileID(f *os.File) (*FileIDInfo, error) {
 	if err := getFileInformationByHandleEx(syscall.Handle(f.Fd()), fileIDInfo, (*byte)(unsafe.Pointer(fileID)), uint32(unsafe.Sizeof(*fileID))); err != nil {
 		return nil, &os.PathError{Op: "GetFileInformationByHandleEx", Path: f.Name(), Err: err}
 	}
+	runtime.KeepAlive(f)
 	return fileID, nil
 }

vendor/github.com/Microsoft/go-winio/pipe.go

@@ -18,10 +18,12 @@ import (
 //sys waitNamedPipe(name string, timeout uint32) (err error) = WaitNamedPipeW
 //sys getNamedPipeInfo(pipe syscall.Handle, flags *uint32, outSize *uint32, inSize *uint32, maxInstances *uint32) (err error) = GetNamedPipeInfo
 //sys getNamedPipeHandleState(pipe syscall.Handle, state *uint32, curInstances *uint32, maxCollectionCount *uint32, collectDataTimeout *uint32, userName *uint16, maxUserNameSize uint32) (err error) = GetNamedPipeHandleStateW
+//sys localAlloc(uFlags uint32, length uint32) (ptr uintptr) = LocalAlloc
+//sys copyMemory(dst uintptr, src uintptr, length uint32) = RtlCopyMemory
 
 type securityAttributes struct {
 	Length             uint32
-	SecurityDescriptor *byte
+	SecurityDescriptor uintptr
 	InheritHandle      uint32
 }
 
@@ -87,7 +89,11 @@ func (f *win32MessageBytePipe) CloseWrite() error {
 	if f.writeClosed {
 		return errPipeWriteClosed
 	}
-	_, err := f.win32File.Write(nil)
+	err := f.win32File.Flush()
+	if err != nil {
+		return err
+	}
+	_, err = f.win32File.Write(nil)
 	if err != nil {
 		return err
 	}
@@ -227,12 +233,15 @@ func makeServerPipeHandle(path string, securityDescriptor []byte, c *PipeConfig,
 		mode |= cPIPE_TYPE_MESSAGE
 	}
 
-	var sa securityAttributes
-	sa.Length = uint32(unsafe.Sizeof(sa))
+	sa := &securityAttributes{}
+	sa.Length = uint32(unsafe.Sizeof(*sa))
 	if securityDescriptor != nil {
-		sa.SecurityDescriptor = &securityDescriptor[0]
+		len := uint32(len(securityDescriptor))
+		sa.SecurityDescriptor = localAlloc(0, len)
+		defer localFree(sa.SecurityDescriptor)
+		copyMemory(sa.SecurityDescriptor, uintptr(unsafe.Pointer(&securityDescriptor[0])), len)
 	}
-	h, err := createNamedPipe(path, flags, mode, cPIPE_UNLIMITED_INSTANCES, uint32(c.OutputBufferSize), uint32(c.InputBufferSize), 0, &sa)
+	h, err := createNamedPipe(path, flags, mode, cPIPE_UNLIMITED_INSTANCES, uint32(c.OutputBufferSize), uint32(c.InputBufferSize), 0, sa)
 	if err != nil {
 		return 0, &os.PathError{Op: "open", Path: path, Err: err}
 	}
@@ -359,7 +368,7 @@ func connectPipe(p *win32File) error {
 		return err
 	}
 	err = connectNamedPipe(p.handle, &c.o)
-	_, err = p.asyncIo(c, time.Time{}, 0, err)
+	_, err = p.asyncIo(c, nil, 0, err)
 	if err != nil && err != cERROR_PIPE_CONNECTED {
 		return err
 	}

vendor/github.com/Microsoft/go-winio/zsyscall_windows.go

@@ -11,6 +11,31 @@ import (
 
 var _ unsafe.Pointer
 
+// Do the interface allocations only once for common
+// Errno values.
+const (
+	errnoERROR_IO_PENDING = 997
+)
+
+var (
+	errERROR_IO_PENDING error = syscall.Errno(errnoERROR_IO_PENDING)
+)
+
+// errnoErr returns common boxed Errno values, to prevent
+// allocations at runtime.
+func errnoErr(e syscall.Errno) error {
+	switch e {
+	case 0:
+		return nil
+	case errnoERROR_IO_PENDING:
+		return errERROR_IO_PENDING
+	}
+	// TODO: add more here, after collecting data on the common
+	// error values see on Windows. (perhaps when running
+	// all.bat?)
+	return e
+}
+
 var (
 	modkernel32 = windows.NewLazySystemDLL("kernel32.dll")
 	modwinmm    = windows.NewLazySystemDLL("winmm.dll")
@@ -27,6 +52,8 @@ var (
 	procWaitNamedPipeW                                       = modkernel32.NewProc("WaitNamedPipeW")
 	procGetNamedPipeInfo                                     = modkernel32.NewProc("GetNamedPipeInfo")
 	procGetNamedPipeHandleStateW                             = modkernel32.NewProc("GetNamedPipeHandleStateW")
+	procLocalAlloc                                           = modkernel32.NewProc("LocalAlloc")
+	procRtlCopyMemory                                        = modkernel32.NewProc("RtlCopyMemory")
 	procLookupAccountNameW                                   = modadvapi32.NewProc("LookupAccountNameW")
 	procConvertSidToStringSidW                               = modadvapi32.NewProc("ConvertSidToStringSidW")
 	procConvertStringSecurityDescriptorToSecurityDescriptorW = modadvapi32.NewProc("ConvertStringSecurityDescriptorToSecurityDescriptorW")
@@ -51,7 +78,7 @@ func cancelIoEx(file syscall.Handle, o *syscall.Overlapped) (err error) {
 	r1, _, e1 := syscall.Syscall(procCancelIoEx.Addr(), 2, uintptr(file), uintptr(unsafe.Pointer(o)), 0)
 	if r1 == 0 {
 		if e1 != 0 {
-			err = error(e1)
+			err = errnoErr(e1)
 		} else {
 			err = syscall.EINVAL
 		}
@@ -64,7 +91,7 @@ func createIoCompletionPort(file syscall.Handle, port syscall.Handle, key uintpt
 	newport = syscall.Handle(r0)
 	if newport == 0 {
 		if e1 != 0 {
-			err = error(e1)
+			err = errnoErr(e1)
 		} else {
 			err = syscall.EINVAL
 		}
@@ -76,7 +103,7 @@ func getQueuedCompletionStatus(port syscall.Handle, bytes *uint32, key *uintptr,
 	r1, _, e1 := syscall.Syscall6(procGetQueuedCompletionStatus.Addr(), 5, uintptr(port), uintptr(unsafe.Pointer(bytes)), uintptr(unsafe.Pointer(key)), uintptr(unsafe.Pointer(o)), uintptr(timeout), 0)
 	if r1 == 0 {
 		if e1 != 0 {
-			err = error(e1)
+			err = errnoErr(e1)
 		} else {
 			err = syscall.EINVAL
 		}
@@ -88,7 +115,7 @@ func setFileCompletionNotificationModes(h syscall.Handle, flags uint8) (err erro
 	r1, _, e1 := syscall.Syscall(procSetFileCompletionNotificationModes.Addr(), 2, uintptr(h), uintptr(flags), 0)
 	if r1 == 0 {
 		if e1 != 0 {
-			err = error(e1)
+			err = errnoErr(e1)
 		} else {
 			err = syscall.EINVAL
 		}
@@ -106,7 +133,7 @@ func connectNamedPipe(pipe syscall.Handle, o *syscall.Overlapped) (err error) {
 	r1, _, e1 := syscall.Syscall(procConnectNamedPipe.Addr(), 2, uintptr(pipe), uintptr(unsafe.Pointer(o)), 0)
 	if r1 == 0 {
 		if e1 != 0 {
-			err = error(e1)
+			err = errnoErr(e1)
 		} else {
 			err = syscall.EINVAL
 		}
@@ -128,7 +155,7 @@ func _createNamedPipe(name *uint16, flags uint32, pipeMode uint32, maxInstances
 	handle = syscall.Handle(r0)
 	if handle == syscall.InvalidHandle {
 		if e1 != 0 {
-			err = error(e1)
+			err = errnoErr(e1)
 		} else {
 			err = syscall.EINVAL
 		}
@@ -150,7 +177,7 @@ func _createFile(name *uint16, access uint32, mode uint32, sa *securityAttribute
 	handle = syscall.Handle(r0)
 	if handle == syscall.InvalidHandle {
 		if e1 != 0 {
-			err = error(e1)
+			err = errnoErr(e1)
 		} else {
 			err = syscall.EINVAL
 		}
@@ -171,7 +198,7 @@ func _waitNamedPipe(name *uint16, timeout uint32) (err error) {
 	r1, _, e1 := syscall.Syscall(procWaitNamedPipeW.Addr(), 2, uintptr(unsafe.Pointer(name)), uintptr(timeout), 0)
 	if r1 == 0 {
 		if e1 != 0 {
-			err = error(e1)
+			err = errnoErr(e1)
 		} else {
 			err = syscall.EINVAL
 		}
@@ -183,7 +210,7 @@ func getNamedPipeInfo(pipe syscall.Handle, flags *uint32, outSize *uint32, inSiz
 	r1, _, e1 := syscall.Syscall6(procGetNamedPipeInfo.Addr(), 5, uintptr(pipe), uintptr(unsafe.Pointer(flags)), uintptr(unsafe.Pointer(outSize)), uintptr(unsafe.Pointer(inSize)), uintptr(unsafe.Pointer(maxInstances)), 0)
 	if r1 == 0 {
 		if e1 != 0 {
-			err = error(e1)
+			err = errnoErr(e1)
 		} else {
 			err = syscall.EINVAL
 		}
@@ -195,7 +222,7 @@ func getNamedPipeHandleState(pipe syscall.Handle, state *uint32, curInstances *u
 	r1, _, e1 := syscall.Syscall9(procGetNamedPipeHandleStateW.Addr(), 7, uintptr(pipe), uintptr(unsafe.Pointer(state)), uintptr(unsafe.Pointer(curInstances)), uintptr(unsafe.Pointer(maxCollectionCount)), uintptr(unsafe.Pointer(collectDataTimeout)), uintptr(unsafe.Pointer(userName)), uintptr(maxUserNameSize), 0, 0)
 	if r1 == 0 {
 		if e1 != 0 {
-			err = error(e1)
+			err = errnoErr(e1)
 		} else {
 			err = syscall.EINVAL
 		}
@@ -203,6 +230,17 @@ func getNamedPipeHandleState(pipe syscall.Handle, state *uint32, curInstances *u
 	return
 }
 
+func localAlloc(uFlags uint32, length uint32) (ptr uintptr) {
+	r0, _, _ := syscall.Syscall(procLocalAlloc.Addr(), 2, uintptr(uFlags), uintptr(length), 0)
+	ptr = uintptr(r0)
+	return
+}
+
+func copyMemory(dst uintptr, src uintptr, length uint32) {
+	syscall.Syscall(procRtlCopyMemory.Addr(), 3, uintptr(dst), uintptr(src), uintptr(length))
+	return
+}
+
 func lookupAccountName(systemName *uint16, accountName string, sid *byte, sidSize *uint32, refDomain *uint16, refDomainSize *uint32, sidNameUse *uint32) (err error) {
 	var _p0 *uint16
 	_p0, err = syscall.UTF16PtrFromString(accountName)
@@ -216,7 +254,7 @@ func _lookupAccountName(systemName *uint16, accountName *uint16, sid *byte, sidS
 	r1, _, e1 := syscall.Syscall9(procLookupAccountNameW.Addr(), 7, uintptr(unsafe.Pointer(systemName)), uintptr(unsafe.Pointer(accountName)), uintptr(unsafe.Pointer(sid)), uintptr(unsafe.Pointer(sidSize)), uintptr(unsafe.Pointer(refDomain)), uintptr(unsafe.Pointer(refDomainSize)), uintptr(unsafe.Pointer(sidNameUse)), 0, 0)
 	if r1 == 0 {
 		if e1 != 0 {
-			err = error(e1)
+			err = errnoErr(e1)
 		} else {
 			err = syscall.EINVAL
 		}
@@ -228,7 +266,7 @@ func convertSidToStringSid(sid *byte, str **uint16) (err error) {
 	r1, _, e1 := syscall.Syscall(procConvertSidToStringSidW.Addr(), 2, uintptr(unsafe.Pointer(sid)), uintptr(unsafe.Pointer(str)), 0)
 	if r1 == 0 {
 		if e1 != 0 {
-			err = error(e1)
+			err = errnoErr(e1)
 		} else {
 			err = syscall.EINVAL
 		}
@@ -249,7 +287,7 @@ func _convertStringSecurityDescriptorToSecurityDescriptor(str *uint16, revision
 	r1, _, e1 := syscall.Syscall6(procConvertStringSecurityDescriptorToSecurityDescriptorW.Addr(), 4, uintptr(unsafe.Pointer(str)), uintptr(revision), uintptr(unsafe.Pointer(sd)), uintptr(unsafe.Pointer(size)), 0, 0)
 	if r1 == 0 {
 		if e1 != 0 {
-			err = error(e1)
+			err = errnoErr(e1)
 		} else {
 			err = syscall.EINVAL
 		}
@@ -261,7 +299,7 @@ func convertSecurityDescriptorToStringSecurityDescriptor(sd *byte, revision uint
 	r1, _, e1 := syscall.Syscall6(procConvertSecurityDescriptorToStringSecurityDescriptorW.Addr(), 5, uintptr(unsafe.Pointer(sd)), uintptr(revision), uintptr(secInfo), uintptr(unsafe.Pointer(sddl)), uintptr(unsafe.Pointer(sddlSize)), 0)
 	if r1 == 0 {
 		if e1 != 0 {
-			err = error(e1)
+			err = errnoErr(e1)
 		} else {
 			err = syscall.EINVAL
 		}
@@ -284,7 +322,7 @@ func getFileInformationByHandleEx(h syscall.Handle, class uint32, buffer *byte,
 	r1, _, e1 := syscall.Syscall6(procGetFileInformationByHandleEx.Addr(), 4, uintptr(h), uintptr(class), uintptr(unsafe.Pointer(buffer)), uintptr(size), 0, 0)
 	if r1 == 0 {
 		if e1 != 0 {
-			err = error(e1)
+			err = errnoErr(e1)
 		} else {
 			err = syscall.EINVAL
 		}
@@ -296,7 +334,7 @@ func setFileInformationByHandle(h syscall.Handle, class uint32, buffer *byte, si
 	r1, _, e1 := syscall.Syscall6(procSetFileInformationByHandle.Addr(), 4, uintptr(h), uintptr(class), uintptr(unsafe.Pointer(buffer)), uintptr(size), 0, 0)
 	if r1 == 0 {
 		if e1 != 0 {
-			err = error(e1)
+			err = errnoErr(e1)
 		} else {
 			err = syscall.EINVAL
 		}
@@ -315,7 +353,7 @@ func adjustTokenPrivileges(token windows.Token, releaseAll bool, input *byte, ou
 	success = r0 != 0
 	if true {
 		if e1 != 0 {
-			err = error(e1)
+			err = errnoErr(e1)
 		} else {
 			err = syscall.EINVAL
 		}
@@ -327,7 +365,7 @@ func impersonateSelf(level uint32) (err error) {
 	r1, _, e1 := syscall.Syscall(procImpersonateSelf.Addr(), 1, uintptr(level), 0, 0)
 	if r1 == 0 {
 		if e1 != 0 {
-			err = error(e1)
+			err = errnoErr(e1)
 		} else {
 			err = syscall.EINVAL
 		}
@@ -339,7 +377,7 @@ func revertToSelf() (err error) {
 	r1, _, e1 := syscall.Syscall(procRevertToSelf.Addr(), 0, 0, 0, 0)
 	if r1 == 0 {
 		if e1 != 0 {
-			err = error(e1)
+			err = errnoErr(e1)
 		} else {
 			err = syscall.EINVAL
 		}
@@ -357,7 +395,7 @@ func openThreadToken(thread syscall.Handle, accessMask uint32, openAsSelf bool,
 	r1, _, e1 := syscall.Syscall6(procOpenThreadToken.Addr(), 4, uintptr(thread), uintptr(accessMask), uintptr(_p0), uintptr(unsafe.Pointer(token)), 0, 0)
 	if r1 == 0 {
 		if e1 != 0 {
-			err = error(e1)
+			err = errnoErr(e1)
 		} else {
 			err = syscall.EINVAL
 		}
@@ -389,7 +427,7 @@ func _lookupPrivilegeValue(systemName *uint16, name *uint16, luid *uint64) (err
 	r1, _, e1 := syscall.Syscall(procLookupPrivilegeValueW.Addr(), 3, uintptr(unsafe.Pointer(systemName)), uintptr(unsafe.Pointer(name)), uintptr(unsafe.Pointer(luid)))
 	if r1 == 0 {
 		if e1 != 0 {
-			err = error(e1)
+			err = errnoErr(e1)
 		} else {
 			err = syscall.EINVAL
 		}
@@ -410,7 +448,7 @@ func _lookupPrivilegeName(systemName *uint16, luid *uint64, buffer *uint16, size
 	r1, _, e1 := syscall.Syscall6(procLookupPrivilegeNameW.Addr(), 4, uintptr(unsafe.Pointer(systemName)), uintptr(unsafe.Pointer(luid)), uintptr(unsafe.Pointer(buffer)), uintptr(unsafe.Pointer(size)), 0, 0)
 	if r1 == 0 {
 		if e1 != 0 {
-			err = error(e1)
+			err = errnoErr(e1)
 		} else {
 			err = syscall.EINVAL
 		}
@@ -431,7 +469,7 @@ func _lookupPrivilegeDisplayName(systemName *uint16, name *uint16, buffer *uint1
 	r1, _, e1 := syscall.Syscall6(procLookupPrivilegeDisplayNameW.Addr(), 5, uintptr(unsafe.Pointer(systemName)), uintptr(unsafe.Pointer(name)), uintptr(unsafe.Pointer(buffer)), uintptr(unsafe.Pointer(size)), uintptr(unsafe.Pointer(languageId)), 0)
 	if r1 == 0 {
 		if e1 != 0 {
-			err = error(e1)
+			err = errnoErr(e1)
 		} else {
 			err = syscall.EINVAL
 		}
@@ -459,7 +497,7 @@ func backupRead(h syscall.Handle, b []byte, bytesRead *uint32, abort bool, proce
 	r1, _, e1 := syscall.Syscall9(procBackupRead.Addr(), 7, uintptr(h), uintptr(unsafe.Pointer(_p0)), uintptr(len(b)), uintptr(unsafe.Pointer(bytesRead)), uintptr(_p1), uintptr(_p2), uintptr(unsafe.Pointer(context)), 0, 0)
 	if r1 == 0 {
 		if e1 != 0 {
-			err = error(e1)
+			err = errnoErr(e1)
 		} else {
 			err = syscall.EINVAL
 		}
@@ -487,7 +525,7 @@ func backupWrite(h syscall.Handle, b []byte, bytesWritten *uint32, abort bool, p
 	r1, _, e1 := syscall.Syscall9(procBackupWrite.Addr(), 7, uintptr(h), uintptr(unsafe.Pointer(_p0)), uintptr(len(b)), uintptr(unsafe.Pointer(bytesWritten)), uintptr(_p1), uintptr(_p2), uintptr(unsafe.Pointer(context)), 0, 0)
 	if r1 == 0 {
 		if e1 != 0 {
-			err = error(e1)
+			err = errnoErr(e1)
 		} else {
 			err = syscall.EINVAL
 		}

vendor/github.com/hashicorp/consul/CHANGELOG.md

@@ -0,0 +1,872 @@
+## 0.8.1 (April 17, 2017)
+
+FEATURES:
+
+IMPROVEMENTS:
+
+* agent: Node IDs derived from host information are now hashed to prevent things like common server hardware from generating IDs with a common prefix across nodes. [GH-2884]
+* agent: Added new `-disable-host-node-id` CLI flag and `disable_host_node_id` config option to the Consul agent to prevent it from using information from the host when generating a node ID. This will result in a random node ID, which is useful when running multiple Consul agents on the same host for testing purposes. Having this built-in eases configuring a random node ID when running in containers. [GH-2877]
+* agent: Removed useless "==> Caught signal: broken pipe" logging since that often results from problems sending telemetry or broken incoming client connections; operators don't need to be alerted to these. [GH-2768]
+* cli: Added TLS options for setting the client/CA certificates to use when communicating with Consul. These can be provided through environment variables or command line flags. [GH-2914]
+* build: Consul is now built with Go 1.8.1. [GH-2888]
+* ui: Updates Consul assets to new branding. [GH-2898]
+
+BUG FIXES:
+
+* api: Added missing Raft index fields to AgentService and Node structures. [GH-2882]
+* server: Fixed an issue where flood joins would not work with IPv6 addresses. [GH-2878]
+* server: Fixed an issue where electing a 0.8.x leader during an upgrade would cause a panic in older servers. [GH-2889]
+* server: Fixed an issue where tracking of leadership changes could become incorrect when changes occurred very rapidly. This could manifest as a panic in Autopilot, but could have caused other issues with multiple leader management routines running simultaneously. [GH-2896]
+* server: Fixed a panic when checking ACLs on a session that doesn't exist. [GH-2624]
+
+## 0.8.0 (April 5, 2017)
+
+BREAKING CHANGES:
+
+* **Command-Line Interface RPC Deprecation:** The RPC client interface has been removed. All CLI commands that used RPC and the `-rpc-addr` flag to communicate with Consul have been converted to use the HTTP API and the appropriate flags for it, and the `rpc` field has been removed from the port and address binding configs. You will need to remove these fields from your config files and update any scripts that passed a custom `-rpc-addr` to the following commands: `force-leave`, `info`,  `join`, `keyring`, `leave`, `members`, `monitor`, `reload`
+
+* **Version 8 ACLs Are Now Opt-Out:** The [`acl_enforce_version_8`](https://www.consul.io/docs/agent/options.html#acl_enforce_version_8) configuration now defaults to `true` to enable [full version 8 ACL support](https://www.consul.io/docs/internals/acl.html#version_8_acls) by default. If you are upgrading an existing cluster with ACLs enabled, you will need to set this to `false` during the upgrade on **both Consul agents and Consul servers**. Version 8 ACLs were also changed so that [`acl_datacenter`](https://www.consul.io/docs/agent/options.html#acl_datacenter) must be set on agents in order to enable the agent-side enforcement of ACLs. This makes for a smoother experience in clusters where ACLs aren't enabled at all, but where the agents would have to wait to contact a Consul server before learning that. [GH-2844]
+
+* **Remote Exec Is Now Opt-In:** The default for [`disable_remote_exec`](https://www.consul.io/docs/agent/options.html#disable_remote_exec) was changed to "true", so now operators need to opt-in to having agents support running commands remotely via [`consul exec`](/docs/commands/exec.html). [GH-2854]
+
+* **Raft Protocol Compatibility:** When upgrading to Consul 0.8.0 from a version lower than 0.7.0, users will need to
+set the [`-raft-protocol`](https://www.consul.io/docs/agent/options.html#_raft_protocol) option to 1 in order to maintain backwards compatibility with the old servers during the upgrade. See [Upgrading Specific Versions](https://www.consul.io/docs/upgrade-specific.html) guide for more details.
+
+FEATURES:
+
+* **Autopilot:** A set of features has been added to allow for automatic operator-friendly management of Consul servers. For more information about Autopilot, see the [Autopilot Guide](https://www.consul.io/docs/guides/autopilot.html).
+  - **Dead Server Cleanup:** Dead servers will periodically be cleaned up and removed from the Raft peer set, to prevent them from interfering with the quorum size and leader elections.
+  - **Server Health Checking:** An internal health check has been added to track the stability of servers. The thresholds of this health check are tunable as part of the [Autopilot configuration](https://www.consul.io/docs/agent/options.html#autopilot) and the status can be viewed through the [`/v1/operator/autopilot/health`](https://www.consul.io/docs/agent/http/operator.html#autopilot-health) HTTP endpoint.
+  - **New Server Stabilization:** When a new server is added to the cluster, there will be a waiting period where it must be healthy and stable for a certain amount of time before being promoted to a full, voting member. This threshold can be configured using the new [`server_stabilization_time`](https://www.consul.io/docs/agent/options.html#server_stabilization_time) setting.
+  - **Advanced Redundancy:** (Consul Enterprise) A new [`-non-voting-server`](https://www.consul.io/docs/agent/options.html#_non_voting_server) option flag has been added for Consul servers to configure a server that does not participate in the Raft quorum. This can be used to add read scalability to a cluster in cases where a high volume of reads to servers are needed, but non-voting servers can be lost without causing an outage. There's also a new [`redundancy_zone_tag`](https://www.consul.io/docs/agent/options.html#redundancy_zone_tag) configuration that allows Autopilot to manage separating servers into zones for redundancy. Only one server in each zone can be a voting member at one time. This helps when Consul servers are managed with automatic replacement with a system like a resource scheduler or auto-scaling group. Extra non-voting servers in each zone will be available as hot standbys (that help with read-scaling) that can be quickly promoted into service when the voting server in a zone fails.
+  - **Upgrade Orchestration:** (Consul Enterprise) Autopilot will automatically orchestrate an upgrade strategy for Consul servers where it will initially add newer versions of Consul servers as non-voters, wait for a full set of newer versioned servers to be added, and then gradually swap into service as voters and swap out older versioned servers to non-voters. This allows operators to safely bring up new servers, wait for the upgrade to be complete, and then terminate the old servers.
+* **Network Areas:** (Consul Enterprise) A new capability has been added which allows operators to define network areas that join together two Consul datacenters. Unlike Consul's WAN feature, network areas use just the server RPC port for communication, and pairwise relationships can be made between arbitrary datacenters, so not all servers need to be fully connected. This allows for complex topologies among Consul datacenters like hub/spoke and more general trees. See the [Network Areas Guide](https://www.consul.io/docs/guides/areas.html) for more details.
+* **WAN Soft Fail:** Request routing between servers in the WAN is now more robust by treating Serf failures as advisory but not final. This means that if there are issues between some subset of the servers in the WAN, Consul will still be able to route RPC requests as long as RPCs are actually still working. Prior to WAN Soft Fail, any datacenters having connectivity problems on the WAN would mean that all DCs might potentially stop sending RPCs to those datacenters. [GH-2801]
+* **WAN Join Flooding:** A new routine was added that looks for Consul servers in the LAN and makes sure that they are joined into the WAN as well. This catches up up newly-added servers onto the WAN as soon as they join the LAN, keeping them in sync automatically. [GH-2801]
+* **Validate command:** To provide consistency across our products, the `configtest` command has been deprecated and replaced with the `validate` command (to match Nomad and Terraform). The `configtest` command will be removed in Consul 0.9. [GH-2732]
+
+IMPROVEMENTS:
+
+* agent: Fixed a missing case where gossip would stop flowing to dead nodes for a short while. [GH-2722]
+* agent: Changed agent to seed Go's random number generator. [GH-2722]
+* agent: Serf snapshots no longer have the executable bit set on the file. [GH-2722]
+* agent: Consul is now built with Go 1.8. [GH-2752]
+* agent: Updated aws-sdk-go version (used for EC2 auto join) for Go 1.8 compatibility. [GH-2755]
+* agent: User-supplied node IDs are now normalized to lower-case. [GH-2798]
+* agent: Added checks to enforce uniqueness of agent node IDs at cluster join time and when registering with the catalog. [GH-2832]
+* cli: Standardized handling of CLI options for connecting to the Consul agent. This makes sure that the same set of flags and environment variables works in all CLI commands (see https://www.consul.io/docs/commands/index.html#environment-variables). [GH-2717]
+* cli: Updated go-cleanhttp library for better HTTP connection handling between CLI commands and the Consul agent (tunes reuse settings). [GH-2735]
+* cli: The `operator raft` subcommand has had its two modes split into the `list-peers` and `remove-peer` subcommands. The old flags for these will continue to work for backwards compatibility, but will be removed in Consul 0.9.
+* cli: Added an `-id` flag to the `operator raft remove-peer` command to allow removing a peer by ID. [GH-2847]
+* dns: Allows the `.service` tag to be optional in RFC 2782 lookups. [GH-2690]
+* server: Changed the internal `EnsureRegistration` RPC endpoint to prevent registering checks that aren't associated with the top-level node being registered. [GH-2846]
+
+BUG FIXES:
+
+* agent: Fixed an issue with `consul watch` not working when http was listening on a unix socket. [GH-2385]
+* agent: Fixed an issue where checks and services could not sync deregister operations back to the catalog when version 8 ACL support is enabled. [GH-2818]
+* agent: Fixed an issue where agents could use the ACL token registered with a service when registering checks for the same service that were registered with a different ACL token. [GH-2829]
+* cli: Fixed `consul kv` commands not reading the `CONSUL_HTTP_TOKEN` environment variable. [GH-2566]
+* cli: Fixed an issue where prefixing an address with a protocol (such as 'http://' or 'https://') in `-http-addr` or `CONSUL_HTTP_ADDR` would give an error.
+* cli: Fixed an issue where error messages would get printed to stdout instead of stderr. [GH-2548]
+* server: Fixed an issue with version 8 ACLs where servers couldn't deregister nodes from the catalog during reconciliation. [GH-2792] This fix was generalized and applied to registering nodes as well. [GH-2826]
+* server: Fixed an issue where servers could temporarily roll back changes to a node's metadata or tagged addresses when making updates to the node's health checks. [GH-2826]
+* server: Fixed an issue where the service name `consul` was not subject to service ACL policies with version 8 ACLs enabled. [GH-2816]
+
+## 0.7.5 (February 15, 2017)
+
+BUG FIXES:
+
+* server: Fixed a rare but serious issue where Consul servers could panic when performing a large delete operation followed by a specific sequence of other updates to related parts of the state store (affects KV, sessions, prepared queries, and the catalog). [GH-2724]
+
+## 0.7.4 (February 6, 2017)
+
+IMPROVEMENTS:
+
+* agent: Integrated gopsutil library to use built in host UUID as node ID, if available, instead of a randomly generated UUID. This makes it easier for other applications on the same host to generate the same node ID without coordinating with Consul. [GH-2697]
+* agent: Added a configuration option, `tls_min_version`, for setting the minimum allowed TLS version used for the HTTP API and RPC. [GH-2699]
+* agent: Added a `relay-factor` option to keyring operations to allow nodes to relay their response through N randomly-chosen other nodes in the cluster. [GH-2704]
+* build: Consul is now built with Go 1.7.5. [GH-2682]
+* dns: Add ability to lookup Consul agents by either their Node ID or Node Name through the node interface (e.g. DNS `(node-id|node-name).node.consul`). [GH-2702]
+
+BUG FIXES:
+
+* dns: Fixed an issue where SRV lookups for services on a node registered with non-IP addresses were missing the CNAME record in the additional section of the response. [GH-2695]
+
+## 0.7.3 (January 26, 2017)
+
+FEATURES:
+
+* **KV Import/Export CLI:** `consul kv export` and `consul kv import` can be used to move parts of the KV tree between disconnected consul clusters, using JSON as the intermediate representation. [GH-2633]
+* **Node Metadata:** Support for assigning user-defined metadata key/value pairs to nodes has been added. This can be viewed when looking up node info, and can be used to filter the results of various catalog and health endpoints. For more information, see the [Catalog](https://www.consul.io/docs/agent/http/catalog.html), [Health](https://www.consul.io/docs/agent/http/health.html), and [Prepared Query](https://www.consul.io/docs/agent/http/query.html) endpoint documentation, as well as the [Node Meta](https://www.consul.io/docs/agent/options.html#_node_meta) section of the agent configuration. [GH-2654]
+* **Node Identifiers:** Consul agents can now be configured with a unique identifier, or they will generate one at startup that will persist across agent restarts. This identifier is designed to represent a node across all time, even if the name or address of the node changes. Identifiers are currently only exposed in node-related endpoints, but they will be used in future versions of Consul to help manage Consul servers and the Raft quorum in a more robust manner, as the quorum is currently tracked via addresses, which can change. [GH-2661]
+* **Improved Blocking Queries:** Consul's [blocking query](https://www.consul.io/api/index.html#blocking-queries) implementation was improved to provide a much more fine-grained mechanism for detecting changes. For example, in previous versions of Consul blocking to wait on a change to a specific service would result in a wake up if any service changed. Now, wake ups are scoped to the specific service being watched, if possible. This support has been added to all endpoints that support blocking queries, nothing new is required to take advantage of this feature. [GH-2671]
+* **GCE auto-discovery:** New `-retry-join-gce` configuration options added to allow bootstrapping by automatically discovering Google Cloud instances with a given tag at startup. [GH-2570]
+
+IMPROVEMENTS:
+
+* build: Consul is now built with Go 1.7.4. [GH-2676]
+* cli: `consul kv get` now has a `-base64` flag to base 64 encode the value. [GH-2631]
+* cli: `consul kv put` now has a `-base64` flag for setting values which are base 64 encoded. [GH-2632]
+* ui: Added a notice that JS is required when viewing the web UI with JS disabled. [GH-2636]
+
+BUG FIXES:
+
+* agent: Redacted the AWS access key and secret key ID from the /v1/agent/self output so they are not disclosed. [GH-2677]
+* agent: Fixed a rare startup panic due to a Raft/Serf race condition. [GH-1899]
+* cli: Fixed a panic when an empty quoted argument was given to `consul kv put`. [GH-2635]
+* tests: Fixed a race condition with check mock's map usage. [GH-2578]
+
+## 0.7.2 (December 19, 2016)
+
+FEATURES:
+
+* **Keyring API:** A new `/v1/operator/keyring` HTTP endpoint was added that allows for performing operations such as list, install, use, and remove on the encryption keys in the gossip keyring. See the [Keyring Endpoint](https://www.consul.io/docs/agent/http/operator.html#keyring) for more details. [GH-2509]
+* **Monitor API:** A new `/v1/agent/monitor` HTTP endpoint was added to allow for viewing streaming log output from the agent, similar to the `consul monitor` command. See the [Monitor Endpoint](https://www.consul.io/docs/agent/http/agent.html#agent_monitor) for more details. [GH-2511]
+* **Reload API:** A new `/v1/agent/reload` HTTP endpoint was added for triggering a reload of the agent's configuration. See the [Reload Endpoint](https://www.consul.io/docs/agent/http/agent.html#agent_reload) for more details. [GH-2516]
+* **Leave API:** A new `/v1/agent/leave` HTTP endpoint was added for causing an agent to gracefully shutdown and leave the cluster (previously, only `force-leave` was present in the HTTP API). See the [Leave Endpoint](https://www.consul.io/docs/agent/http/agent.html#agent_leave) for more details. [GH-2516]
+* **Bind Address Templates (beta):** Consul agents now allow [go-sockaddr/template](https://godoc.org/github.com/hashicorp/go-sockaddr/template) syntax to be used for any bind address configuration (`advertise_addr`, `bind_addr`, `client_addr`, and others). This allows for easy creation of immutable images for Consul that can fetch their own address based on an interface name, network CIDR, address family from an actual RFC number, and many other possible schemes. This feature is in beta and we may tweak the template syntax before final release, but we encourage the community to try this and provide feedback. [GH-2563]
+* **Complete ACL Coverage (beta):** Consul 0.8 will feature complete ACL coverage for all of Consul. To ease the transition to the new policies, a beta version of complete ACL support was added to help with testing and migration to the new features. Please see the [ACLs Internals Guide](https://www.consul.io/docs/internals/acl.html#version_8_acls) for more details. [GH-2594, GH-2592, GH-2590]
+
+IMPROVEMENTS:
+
+* agent: Defaults to `?pretty` JSON for HTTP API requests when in `-dev` mode. [GH-2518]
+* agent: Updated Circonus metrics library and added new Circonus configration options for Consul for customizing check display name and tags. [GH-2555]
+* agent: Added a checksum to UDP gossip messages to guard against packet corruption. [GH-2574]
+* agent: Check whether a snapshot needs to be taken more often (every 5 seconds instead of 2 minutes) to keep the raft file smaller and to avoid doing huge truncations when writing lots of entries very quickly. [GH-2591]
+* agent: Allow gossiping to suspected/recently dead nodes. [GH-2593]
+* agent: Changed the gossip suspicion timeout to grow smoothly as the number of nodes grows. [GH-2593]
+* agent: Added a deprecation notice for Atlas features to the CLI and docs. [GH-2597]
+* agent: Give a better error message when the given data-dir is not a directory. [GH-2529]
+
+BUG FIXES:
+
+* agent: Fixed a panic when SIGPIPE signal was received. [GH-2404]
+* api: Added missing Raft index fields to `CatalogService` structure. [GH-2366]
+* api: Added missing notes field to `AgentServiceCheck` structure. [GH-2336]
+* api: Changed type of `AgentServiceCheck.TLSSkipVerify` from `string` to `bool`. [GH-2530]
+* api: Added new `HealthChecks.AggregatedStatus()` method that makes it easy get an overall health status from a list of checks. [GH-2544]
+* api: Changed type of `KVTxnOp.Verb` from `string` to `KVOp`. [GH-2531]
+* cli: Fixed an issue with the `consul kv put` command where a negative value would be interpreted as an argument to read from standard input. [GH-2526]
+* ui: Fixed an issue where extra commas would be shown around service tags. [GH-2340]
+* ui: Customized Bootstrap config to avoid missing font file references. [GH-2485]
+* ui: Removed "Deregister" button as removing nodes from the catalog isn't a common operation and leads to lots of user confusion. [GH-2541]
+
+## 0.7.1 (November 10, 2016)
+
+BREAKING CHANGES:
+
+* Child process reaping support has been removed, along with the `reap` configuration option. Reaping is also done via [dumb-init](https://github.com/Yelp/dumb-init) in the [Consul Docker image](https://github.com/hashicorp/docker-consul), so removing it from Consul itself simplifies the code and eases future maintainence for Consul. If you are running Consul as PID 1 in a container you will need to arrange for a wrapper process to reap child processes. [GH-1988]
+* The default for `max_stale` has been increased to a near-indefinite threshold (10 years) to allow DNS queries to continue to be served in the event of a long outage with no leader. A new telemetry counter has also been added at `consul.dns.stale_queries` to track when agents serve DNS queries that are over a certain staleness (>5 seconds). [GH-2481]
+* The api package's `PreparedQuery.Delete()` method now takes `WriteOptions` instead of `QueryOptions`. [GH-2417]
+
+FEATURES:
+
+* **Key/Value Store Command Line Interface:** New `consul kv` commands were added for easy access to all basic key/value store operations. [GH-2360]
+* **Snapshot/Restore:** A new /v1/snapshot HTTP endpoint and corresponding set of `consul snapshot` commands were added for easy point-in-time snapshots for disaster recovery. Snapshots include all state managed by Consul's Raft [consensus protocol](/docs/internals/consensus.html), including Key/Value Entries, Service Catalog, Prepared Queries, Sessions, and ACLs. Snapshots can be restored on the fly into a completely fresh cluster. [GH-2396]
+* **AWS auto-discovery:** New `-retry-join-ec2` configuration options added to allow bootstrapping by automatically discovering AWS instances with a given tag key/value at startup. [GH-2459]
+
+IMPROVEMENTS:
+
+* api: All session options can now be set when using `api.Lock()`. [GH-2372]
+* agent: Added the ability to bind Serf WAN and LAN to different interfaces than the general bind address. [GH-2007]
+* agent: Added a new `tls_skip_verify` configuration option for HTTP checks. [GH-1984]
+* build: Consul is now built with Go 1.7.3. [GH-2281]
+
+BUG FIXES:
+
+* agent: Fixed a Go race issue with log buffering at startup. [GH-2262]
+* agent: Fixed a panic during anti-entropy sync for services and checks. [GH-2125]
+* agent: Fixed an issue on Windows where "wsarecv" errors were logged when CLI commands accessed the RPC interface. [GH-2356]
+* agent: Syslog initialization will now retry on errors for up to 60 seconds to avoid a race condition at system startup. [GH-1610]
+* agent: Fixed a panic when both -dev and -bootstrap-expect flags were provided. [GH-2464]
+* agent: Added a retry with backoff when a session fails to invalidate after expiring. [GH-2435]
+* agent: Fixed an issue where Consul would fail to start because of leftover malformed check/service state files. [GH-1221]
+* agent: Fixed agent crashes on macOS Sierra by upgrading Go. [GH-2407, GH-2281]
+* agent: Log a warning instead of success when attempting to deregister a nonexistent service. [GH-2492]
+* api: Trim leading slashes from keys/prefixes when querying KV endpoints to avoid a bug with redirects in Go 1.7 (golang/go#4800). [GH-2403]
+* dns: Fixed external services that pointed to consul addresses (CNAME records) not resolving to A-records. [GH-1228]
+* dns: Fixed an issue with SRV lookups where the service address was different from the node's. [GH-832]
+* dns: Fixed an issue where truncated records from a recursor query were improperly reported as errors. [GH-2384]
+* server: Fixed the port numbers in the sample JSON inside peers.info. [GH-2391]
+* server: Squashes ACL datacenter name to lower case and checks for proper formatting at startup. [GH-2059, GH-1778, GH-2478]
+* ui: Fixed an XSS issue with the display of sessions and ACLs in the web UI. [GH-2456]
+
+## 0.7.0 (September 14, 2016)
+
+BREAKING CHANGES:
+
+* The default behavior of `leave_on_terminate` and `skip_leave_on_interrupt` are now dependent on whether or not the agent is acting as a server or client. When Consul is started as a server the defaults for these are `false` and `true`, respectively, which means that you have to explicitly configure a server to leave the cluster. When Consul is started as a client the defaults are the opposite, which means by default, clients will leave the cluster if shutdown or interrupted. [GH-1909] [GH-2320]
+* The `allow_stale` configuration for DNS queries to the Consul agent now defaults to `true`, allowing for better utilization of available Consul servers and higher throughput at the expense of weaker consistency. This is almost always an acceptable tradeoff for DNS queries, but this can be reconfigured to use the old default behavior if desired. [GH-2315]
+* Output from HTTP checks is truncated to 4k when stored on the servers, similar to script check output. [GH-1952]
+* Consul's Go API client will now send ACL tokens using HTTP headers instead of query parameters, requiring Consul 0.6.0 or later. [GH-2233]
+* Removed support for protocol version 1, so Consul 0.7 is no longer compatible with Consul versions prior to 0.3. [GH-2259]
+* The Raft peers information in `consul info` has changed format and includes information about the suffrage of a server, which will be used in future versions of Consul. [GH-2222]
+* New [`translate_wan_addrs`](https://www.consul.io/docs/agent/options.html#translate_wan_addrs) behavior from [GH-2118] translates addresses in HTTP responses and could break clients that are expecting local addresses. A new `X-Consul-Translate-Addresses` header was added to allow clients to detect if translation is enabled for HTTP responses, and a "lan" tag was added to `TaggedAddresses` for clients that need the local address regardless of translation. [GH-2280]
+* The behavior of the `peers.json` file is different in this version of Consul. This file won't normally be present and is used only during outage recovery. Be sure to read the updated [Outage Recovery Guide](https://www.consul.io/docs/guides/outage.html) for details. [GH-2222]
+* Consul's default Raft timing is now set to work more reliably on lower-performance servers, which allows small clusters to use lower cost compute at the expense of reduced performance for failed leader detection and leader elections. You will need to configure Consul to get the same performance as before. See the new [Server Performance](https://www.consul.io/docs/guides/performance.html) guide for more details. [GH-2303]
+
+FEATURES:
+
+* **Transactional Key/Value API:** A new `/v1/txn` API was added that allows for atomic updates to and fetches from multiple entries in the key/value store inside of an atomic transaction. This includes conditional updates based on obtaining locks, and all other key/value store operations. See the [Key/Value Store Endpoint](https://www.consul.io/docs/agent/http/kv.html#txn) for more details. [GH-2028]
+* **Native ACL Replication:** Added a built-in full replication capability for ACLs. Non-ACL datacenters can now replicate the complete ACL set locally to their state store and fall back to that if there's an outage. Additionally, this provides a good way to make a backup ACL datacenter, or to migrate the ACL datacenter to a different one. See the [ACL Internals Guide](https://www.consul.io/docs/internals/acl.html#replication) for more details. [GH-2237]
+* **Server Connection Rebalancing:** Consul agents will now periodically reconnect to available Consul servers in order to redistribute their RPC query load. Consul clients will, by default, attempt to establish a new connection every 120s to 180s unless the size of the cluster is sufficiently large. The rate at which agents begin to query new servers is proportional to the size of the Consul cluster (servers should never receive more than 64 new connections per second per Consul server as a result of rebalancing). Clusters in stable environments who use `allow_stale` should see a more even distribution of query load across all of their Consul servers. [GH-1743]
+* **Raft Updates and Consul Operator Interface:** This version of Consul upgrades to "stage one" of the v2 HashiCorp Raft library. This version offers improved handling of cluster membership changes and recovery after a loss of quorum. This version also provides a foundation for new features that will appear in future Consul versions once the remainder of the v2 library is complete. [GH-2222] <br> Consul's default Raft timing is now set to work more reliably on lower-performance servers, which allows small clusters to use lower cost compute at the expense of reduced performance for failed leader detection and leader elections. You will need to configure Consul to get the same performance as before. See the new [Server Performance](https://www.consul.io/docs/guides/performance.html) guide for more details. [GH-2303] <br> Servers will now abort bootstrapping if they detect an existing cluster with configured Raft peers. This will help prevent safe but spurious leader elections when introducing new nodes with `bootstrap_expect` enabled into an existing cluster. [GH-2319] <br> Added new `consul operator` command, HTTP endpoint, and associated ACL to allow Consul operators to view and update the Raft configuration. This allows a stale server to be removed from the Raft peers without requiring downtime and peers.json recovery file use. See the new [Consul Operator Command](https://www.consul.io/docs/commands/operator.html) and the [Consul Operator Endpoint](https://www.consul.io/docs/agent/http/operator.html) for details, as well as the updated [Outage Recovery Guide](https://www.consul.io/docs/guides/outage.html). [GH-2312]
+* **Serf Lifeguard Updates:** Implemented a new set of feedback controls for the gossip layer that help prevent degraded nodes that can't meet the soft real-time requirements from erroneously causing `serfHealth` flapping in other, healthy nodes. This feature tunes itself automatically and requires no configuration. [GH-2101]
+* **Prepared Query Near Parameter:** Prepared queries support baking in a new `Near` sorting parameter. This allows results to be sorted by network round trip time based on a static node, or based on the round trip time from the Consul agent where the request originated. This can be used to find a co-located service instance is one is available, with a transparent fallback to the next best alternate instance otherwise. [GH-2137]
+* **Automatic Service Deregistration:** Added a new `deregister_critical_service_after` timeout field for health checks which will cause the service associated with that check to get deregistered if the check is critical for longer than the timeout. This is useful for cleanup of health checks registered natively by applications, or in other situations where services may not always be cleanly shutdown. [GH-679]
+* **WAN Address Translation Everywhere:** Extended the [`translate_wan_addrs`](https://www.consul.io/docs/agent/options.html#translate_wan_addrs) config option to also translate node addresses in HTTP responses, making it easy to use this feature from non-DNS clients. [GH-2118]
+* **RPC Retries:** Consul will now retry RPC calls that result in "no leader" errors for up to 5 seconds. This allows agents to ride out leader elections with a delayed response vs. an error. [GH-2175]
+* **Circonus Telemetry Support:** Added support for Circonus as a telemetry destination. [GH-2193]
+
+IMPROVEMENTS:
+
+* agent: Reap time for failed nodes is now configurable via new `reconnect_timeout` and `reconnect_timeout_wan` config options ([use with caution](https://www.consul.io/docs/agent/options.html#reconnect_timeout)). [GH-1935]
+* agent: Joins based on a DNS lookup will use TCP and attempt to join with the full list of returned addresses. [GH-2101]
+* agent: Consul will now refuse to start with a helpful message if the same UNIX socket is used for more than one listening endpoint. [GH-1910]
+* agent: Removed an obsolete warning message when Consul starts on Windows. [GH-1920]
+* agent: Defaults bind address to 127.0.0.1 when running in `-dev` mode. [GH-1878]
+* agent: Added version information to the log when Consul starts up. [GH-1404]
+* agent: Added timing metrics for HTTP requests in the form of `consul.http.<verb>.<path>`. [GH-2256]
+* build: Updated all vendored dependencies. [GH-2258]
+* build: Consul releases are now built with Go 1.6.3. [GH-2260]
+* checks: Script checks now support an optional `timeout` parameter. [GH-1762]
+* checks: HTTP health checks limit saved output to 4K to avoid performance issues. [GH-1952]
+* cli: Added a `-stale` mode for watchers to allow them to pull data from any Consul server, not just the leader. [GH-2045] [GH-917]
+* dns: Consul agents can now limit the number of UDP answers returned via the DNS interface. The default number of UDP answers is `3`, however by adjusting the `dns_config.udp_answer_limit` configuration parameter, it is now possible to limit the results down to `1`. This tunable provides environments where RFC3484 section 6, rule 9 is enforced with an important workaround in order to preserve the desired behavior of randomized DNS results. Most modern environments will not need to adjust this setting as this RFC was made obsolete by RFC 6724\. See the [agent options](https://www.consul.io/docs/agent/options.html#udp_answer_limit) documentation for additional details for when this should be used. [GH-1712]
+* dns: Consul now compresses all DNS responses by default. This prevents issues when recursing records that were originally compressed, where Consul would sometimes generate an invalid, uncompressed response that was too large. [GH-2266]
+* dns: Added a new `recursor_timeout` configuration option to set the timeout for Consul's internal DNS client that's used for recursing queries to upstream DNS servers. [GH-2321]
+* dns: Added a new `-dns-port` command line option so this can be set without a config file. [GH-2263]
+* ui: Added a new network tomography visualization to the UI. [GH-2046]
+
+BUG FIXES:
+
+* agent: Fixed an issue where a health check's output never updates if the check status doesn't change after the Consul agent starts. [GH-1934]
+* agent: External services can now be registered with ACL tokens. [GH-1738]
+* agent: Fixed an issue where large events affecting many nodes could cause infinite intent rebroadcasts, leading to many log messages about intent queue overflows. [GH-1062]
+* agent: Gossip encryption keys are now validated before being made persistent in the keyring, avoiding delayed feedback at runtime. [GH-1299]
+* dns: Fixed an issue where DNS requests for SRV records could be incorrectly trimmed, resulting in an ADDITIONAL section that was out of sync with the ANSWER. [GH-1931]
+* dns: Fixed two issues where DNS requests for SRV records on a prepared query that failed over would report the wrong domain and fail to translate addresses. [GH-2218] [GH-2220]
+* server: Fixed a deadlock related to sorting the list of available datacenters by round trip time. [GH-2130]
+* server: Fixed an issue with the state store's immutable radix tree that would prevent it from using cached modified objects during transactions, leading to extra copies and increased memory / GC pressure. [GH-2106]
+* server: Upgraded Bolt DB to v1.2.1 to fix an issue on Windows where Consul would sometimes fail to start due to open user-mapped sections. [GH-2203]
+
+OTHER CHANGES:
+
+* build: Switched from Godep to govendor. [GH-2252]
+
+## 0.6.4 (March 16, 2016)
+
+BACKWARDS INCOMPATIBILITIES:
+
+* Added a new `query` ACL type to manage prepared query names, and stopped capturing
+  ACL tokens by default when prepared queries are created. This won't affect existing
+  queries and how they are executed, but this will affect how they are managed. Now
+  management of prepared queries can be delegated within an organization. If you use
+  prepared queries, you'll need to read the
+  [Consul 0.6.4 upgrade instructions](https://www.consul.io/docs/upgrade-specific.html)
+  before upgrading to this version of Consul. [GH-1748]
+* Consul's Go API client now pools connections by default, and requires you to manually
+  opt-out of this behavior. Previously, idle connections were supported and their
+  lifetime was managed by a finalizer, but this wasn't reliable in certain situations.
+  If you reuse an API client object during the lifetime of your application, then there's
+  nothing to do. If you have short-lived API client objects, you may need to configure them
+  using the new `api.DefaultNonPooledConfig()` method to avoid leaking idle connections. [GH-1825]
+* Consul's Go API client's `agent.UpdateTTL()` function was updated in a way that will
+  only work with Consul 0.6.4 and later. The `agent.PassTTL()`, `agent.WarnTTL()`, and
+  `agent.FailTTL()` functions were not affected and will continue work with older
+  versions of Consul. [GH-1794]
+
+FEATURES:
+
+* Added new template prepared queries which allow you to define a prefix (possibly even
+  an empty prefix) to apply prepared query features like datacenter failover to multiple
+  services with a single query definition. This makes it easy to apply a common policy to
+  multiple services without having to manage many prepared queries. See
+  [Prepared Query Templates](https://www.consul.io/docs/agent/http/query.html#templates)
+  for more details. [GH-1764]
+* Added a new ability to translate address lookups when doing queries of nodes in
+  remote datacenters via DNS using a new `translate_wan_addrs` configuration
+  option. This allows the node to be reached within its own datacenter using its
+  local address, and reached from other datacenters using its WAN address, which is
+  useful in hybrid setups with mixed networks. [GH-1698]
+
+IMPROVEMENTS:
+
+* Added a new `disable_hostname` configuration option to control whether Consul's
+  runtime telemetry gets prepended with the host name. All of the telemetry
+  configuration has also been moved to a `telemetry` nested structure, but the old
+  format is currently still supported. [GH-1284]
+* Consul's Go dependencies are now vendored using Godep. [GH-1714]
+* Added support for `EnableTagOverride` for the catalog in the Go API client. [GH-1726]
+* Consul now ships built from Go 1.6. [GH-1735]
+* Added a new `/v1/agent/check/update/<check id>` API for updating TTL checks which
+  makes it easier to send large check output as part of a PUT body and not a query
+  parameter. [GH-1785].
+* Added a default set of `Accept` headers for HTTP checks. [GH-1819]
+* Added support for RHEL7/Systemd in Terraform example. [GH-1629]
+
+BUG FIXES:
+
+* Updated the internal web UI (`-ui` option) to latest released build, fixing
+  an ACL-related issue and the broken settings icon. [GH-1619]
+* Fixed an issue where blocking KV reads could miss updates and return stale data
+  when another key whose name is a prefix of the watched key was updated. [GH-1632]
+* Fixed the redirect from `/` to `/ui` when the internal web UI (`-ui` option) is
+  enabled. [GH-1713]
+* Updated memberlist to pull in a fix for leaking goroutines when performing TCP
+  fallback pings. This affected users with frequent UDP connectivity problems. [GH-1802]
+* Added a fix to trim UDP DNS responses so they don't exceed 512 bytes. [GH-1813]
+* Updated go-dockerclient to fix Docker health checks with Docker 1.10. [GH-1706]
+* Removed fixed height display of nodes and services in UI, leading to broken displays
+  when a node has a lot of services. [GH-2055]
+
+## 0.6.3 (January 15, 2016)
+
+BUG FIXES:
+
+* Fixed an issue when running Consul as PID 1 in a Docker container where
+  it could consume CPU and show spurious failures for health checks, watch
+  handlers, and `consul exec` commands [GH-1592]
+
+## 0.6.2 (January 13, 2016)
+
+SECURITY:
+
+* Build against Go 1.5.3 to mitigate a security vulnerability introduced
+  in Go 1.5. For more information, please see https://groups.google.com/forum/#!topic/golang-dev/MEATuOi_ei4
+
+This is a security-only release; other than the version number and building
+against Go 1.5.3, there are no changes from 0.6.1.
+
+## 0.6.1 (January 6, 2016)
+
+BACKWARDS INCOMPATIBILITIES:
+
+* The new `-monitor-retry` option to `consul lock` defaults to 3. This
+  will cause the lock monitor to retry up to 3 times, waiting 1s between
+  each attempt if it gets a 500 error from the Consul servers. For the
+  vast majority of use cases this is desirable to prevent the lock from
+  being given up during a brief period of Consul unavailability. If you
+  want to get the previous default behavior you will need to set the
+  `-monitor-retry=0` option.
+
+IMPROVEMENTS:
+
+* Consul is now built with Go 1.5.2
+* Added source IP address and port information to RPC-related log error
+  messages and HTTP access logs [GH-1513] [GH-1448]
+* API clients configured for insecure SSL now use an HTTP transport that's
+  set up the same way as the Go default transport [GH-1526]
+* Added new per-host telemetry on DNS requests [GH-1537]
+* Added support for reaping child processes which is useful when running
+  Consul as PID 1 in Docker containers [GH-1539]
+* Added new `-ui` command line and `ui` config option that enables a built-in
+  Consul web UI, making deployment much simpler [GH-1543]
+* Added new `-dev` command line option that creates a completely in-memory
+  standalone Consul server for development
+* Added a Solaris build, now that dependencies have been updated to support
+  it [GH-1568]
+* Added new `-try` option to `consul lock` to allow it to timeout with an error
+  if it doesn't acquire the lock [GH-1567]
+* Added a new `-monitor-retry` option to `consul lock` to help ride out brief
+  periods of Consul unavailabily without causing the lock to be given up [GH-1567]
+
+BUG FIXES:
+
+* Fixed broken settings icon in web UI [GH-1469]
+* Fixed a web UI bug where the supplied token wasn't being passed into
+  the internal endpoint, breaking some pages when multiple datacenters
+  were present [GH-1071]
+
+## 0.6.0 (December 3, 2015)
+
+BACKWARDS INCOMPATIBILITIES:
+
+* A KV lock acquisition operation will now allow the lock holder to
+  update the key's contents without giving up the lock by doing another
+  PUT with `?acquire=<session>` and providing the same session that
+  is holding the lock. Previously, this operation would fail.
+
+FEATURES:
+
+* Service ACLs now apply to service discovery [GH-1024]
+* Added event ACLs to guard firing user events [GH-1046]
+* Added keyring ACLs for gossip encryption keyring operations [GH-1090]
+* Added a new TCP check type that does a connect as a check [GH-1130]
+* Added new "tag override" feature that lets catalog updates to a
+  service's tags flow down to agents [GH-1187]
+* Ported in-memory database from LMDB to an immutable radix tree to improve
+  read throughput, reduce garbage collection pressure, and make Consul 100%
+  pure Go [GH-1291]
+* Added support for sending telemetry to DogStatsD [GH-1293]
+* Added new network tomography subsystem that estimates the network
+  round trip times between nodes and exposes that in raw APIs, as well
+  as in existing APIs (find the service node nearest node X); also
+  includes a new `consul rtt` command to query interactively [GH-1331]
+* Consul now builds under Go 1.5.1 by default [GH-1345]
+* Added built-in support for running health checks inside Docker containers
+  [GH-1343]
+* Added prepared queries which support service health queries with rich
+  features such as filters for multiple tags and failover to remote datacenters
+  based on network coordinates; these are available via HTTP as well as the
+  DNS interface [GH-1389]
+
+BUG FIXES:
+
+* Fixed expired certificates in unit tests [GH-979]
+* Allow services with `/` characters in the UI [GH-988]
+* Added SOA/NXDOMAIN records to negative DNS responses per RFC2308 [GH-995]
+  [GH-1142] [GH-1195] [GH-1217]
+* Token hiding in HTTP logs bug fixed [GH-1020]
+* RFC6598 addresses are accepted as private IPs [GH-1050]
+* Fixed reverse DNS lookups to recursor [GH-1137]
+* Removes the trailing `/` added by the `consul lock` command [GH-1145]
+* Fixed bad lock handler execution during shutdown [GH-1080] [GH-1158] [GH-1214]
+* Added missing support for AAAA queries for nodes [GH-1222]
+* Tokens passed from the CLI or API work for maint mode [GH-1230]
+* Fixed service deregister/reregister flaps that could happen during
+  `consul reload` [GH-1235]
+* Fixed the Go API client to properly distinguish between expired sessions
+  and sessions that don't exist [GH-1041]
+* Fixed the KV section of the UI to work on Safari [GH-1321]
+* Cleaned up JavaScript for built-in UI with bug fixes [GH-1338]
+
+IMPROVEMENTS:
+
+* Added sorting of `consul members` command output [GH-969]
+* Updated AWS templates for RHEL6, CentOS6 [GH-992] [GH-1002]
+* Advertised gossip/rpc addresses can now be configured [GH-1004]
+* Failed lock acquisition handling now responds based on type of failure
+  [GH-1006]
+* Agents now remember check state across restarts [GH-1009]
+* Always run ACL tests by default in API tests [GH-1030]
+* Consul now refuses to start if there are multiple private IPs [GH-1099]
+* Improved efficiency of servers managing incoming connections from agents
+  [GH-1170]
+* Added logging of the DNS client addresses in error messages [GH-1166]
+* Added `-http-port` option to change the HTTP API port number [GH-1167]
+* Atlas integration options are reload-able via SIGHUP [GH-1199]
+* Atlas endpoint is a configurable option and CLI arg [GH-1201]
+* Added `-pass-stdin` option to `consul lock` command [GH-1200]
+* Enables the `/v1/internal/ui/*` endpoints, even if `-ui-dir` isn't set
+  [GH-1215]
+* Added HTTP method to Consul's log output for better debugging [GH-1270]
+* Lock holders can `?acquire=<session>` a key again with the same session
+  that holds the lock to update a key's contents without releasing the
+  lock [GH-1291]
+* Improved an O(n^2) algorithm in the agent's catalog sync code [GH-1296]
+* Switched to net-rpc-msgpackrpc to reduce RPC overhead [GH-1307]
+* Removed all uses of the http package's default client and transport in
+  Consul to avoid conflicts with other packages [GH-1310] [GH-1327]
+* Added new `X-Consul-Token` HTTP header option to avoid passing tokens
+  in the query string [GH-1318]
+* Increased session TTL max to 24 hours (use with caution, see note added
+  to the Session HTTP endpoint documentation) [GH-1412]
+* Added support to the API client for retrying lock monitoring when Consul
+  is unavailable, helping prevent false indications of lost locks (eg. apps
+  like Vault can avoid failing over when a Consul leader election occurs)
+  [GH-1457]
+* Added reap of receive buffer space for idle streams in the connection
+  pool [GH-1452]
+
+MISC:
+
+* Lots of docs fixes
+* Lots of Vagrantfile cleanup
+* Data migrator utility removed to eliminate cgo dependency [GH-1309]
+
+UPGRADE NOTES:
+
+* Consul will refuse to start if the data directory contains an "mdb" folder.
+  This folder was used in versions of Consul up to 0.5.1. Consul version 0.5.2
+  included a baked-in utility to automatically upgrade the data format, but
+  this has been removed in Consul 0.6 to eliminate the dependency on cgo.
+* New service read, event firing, and keyring ACLs may require special steps to
+  perform during an upgrade if ACLs are enabled and set to deny by default.
+* Consul will refuse to start if there are multiple private IPs available, so
+  if this is the case you will need to configure Consul's advertise or bind
+  addresses before upgrading.
+
+See https://www.consul.io/docs/upgrade-specific.html for detailed upgrade
+instructions.
+
+## 0.5.2 (May 18, 2015)
+
+FEATURES:
+
+* Include datacenter in the `members` output
+* HTTP Health Check sets user agent "Consul Health Check" [GH-951]
+
+BUG FIXES:
+
+* Fixed memory leak caused by blocking query [GH-939]
+
+MISC:
+
+* Remove unused constant [GH-941]
+
+## 0.5.1 (May 13, 2015)
+
+FEATURES:
+
+ * Ability to configure minimum session TTL. [GH-821]
+ * Ability to set the initial state of a health check when registering [GH-859]
+ * New `configtest` sub-command to verify config validity [GH-904]
+ * ACL enforcement is prefix based for service names [GH-905]
+ * ACLs support upsert for simpler restore and external generation [GH-909]
+ * ACL tokens can be provided per-service during registration [GH-891]
+ * Support for distinct LAN and WAN advertise addresses [GH-816]
+ * Migrating Raft log from LMDB to BoltDB [GH-857]
+ * `session_ttl_min` is now configurable to reduce the minimum TTL [GH-821]
+ * Adding `verify_server_hostname` to protect against server forging [GH-927]
+
+BUG FIXES:
+
+ * Datacenter is lowercased, fixes DNS lookups [GH-761]
+ * Deregister all checks when service is deregistered [GH-918]
+ * Fixing issues with updates of persisted services [GH-910]
+ * Chained CNAME resolution fixes [GH-862]
+ * Tokens are filtered out of log messages [GH-860]
+ * Fixing anti-entropy issue if servers rollback Raft log [GH-850]
+ * Datacenter name is case insensitive for DNS lookups
+ * Queries for invalid datacenters do not leak sockets [GH-807]
+
+IMPROVEMENTS:
+
+ * HTTP health checks more reliable, avoid KeepAlives [GH-824]
+ * Improved protection against a passive cluster merge
+ * SIGTERM is properly handled for graceful shutdown [GH-827]
+ * Better staggering of deferred updates to checks [GH-884]
+ * Configurable stats prefix [GH-902]
+ * Raft uses BoltDB as the backend store. [GH-857]
+ * API RenewPeriodic more resilient to transient errors [GH-912]
+
+## 0.5.0 (February 19, 2015)
+
+FEATURES:
+
+ * Key rotation support for gossip layer. This allows the `encrypt` key
+   to be changed globally.  See "keyring" command. [GH-336]
+ * Options to join the WAN pool on start (`start_join_wan`, `retry_join_wan`) [GH-477]
+ * Optional HTTPS interface [GH-478]
+ * Ephemeral keys via "delete" session behavior. This allows keys to be deleted when
+   a session is invalidated instead of having the lock released. Adds new "Behavior"
+   field to Session which is configurable. [GH-487]
+ * Reverse DNS lookups via PTR for IPv4 and IPv6 [GH-475]
+ * API added checks and services are persisted. This means services and
+   checks will survive a crash or restart. [GH-497]
+ * ACLs can now protect service registration. Users in blacklist mode should
+   allow registrations before upgrading to prevent a service disruption. [GH-506] [GH-465]
+ * Sessions support a heartbeat failure detector via use of TTLs. This adds a new
+   "TTL" field to Sessions and a `/v1/session/renew` endpoint. Heartbeats act like a
+   failure detector (health check), but are managed by the servers. [GH-524] [GH-172]
+ * Support for service specific IP addresses. This allows the service to advertise an
+   address that is different from the agent. [GH-229] [GH-570]
+ * Support KV Delete with Check-And-Set  [GH-589]
+ * Merge `armon/consul-api` into `api` as official Go client.
+ * Support for distributed locks and semaphores in API client [GH-594] [GH-600]
+ * Support for native HTTP health checks [GH-592]
+ * Support for node and service maintenance modes [GH-606]
+ * Added new "consul maint" command to easily toggle maintenance modes [GH-625]
+ * Added new "consul lock" command for simple highly-available deployments.
+   This lets Consul manage the leader election and easily handle N+1 deployments
+   without the applications being Consul aware. [GH-619]
+ * Multiple checks can be associated with a service [GH-591] [GH-230]
+
+BUG FIXES:
+
+ * Fixed X-Consul-Index calculation for KV ListKeys
+ * Fixed errors under extremely high read parallelism
+ * Fixed issue causing event watches to not fire reliably [GH-479]
+ * Fixed non-monotonic X-Consul-Index with key deletion [GH-577] [GH-195]
+ * Fixed use of default instead of custom TLD in some DNS responses [GH-582]
+ * Fixed memory leaks in API client when an error response is returned [GH-608]
+ * Fixed issues with graceful leave in single-node bootstrap cluster [GH-621]
+ * Fixed issue preventing node reaping [GH-371]
+ * Fixed gossip stability at very large scale
+ * Fixed string of rpc error: rpc error: ... no known leader. [GH-611]
+ * Fixed panic in `exec` during cancellation
+ * Fixed health check state reset caused by SIGHUP [GH-693]
+ * Fixed bug in UI when multiple datacenters exist.
+
+IMPROVEMENTS:
+
+ * Support "consul exec" in foreign datacenter [GH-584]
+ * Improved K/V blocking query performance [GH-578]
+ * CLI respects CONSUL_RPC_ADDR environment variable to load parameter [GH-542]
+ * Added support for multiple DNS recursors [GH-448]
+ * Added support for defining multiple services per configuration file [GH-433]
+ * Added support for defining multiple checks per configuration file [GH-433]
+ * Allow mixing of service and check definitions in a configuration file [GH-433]
+ * Allow notes for checks in service definition file [GH-449]
+ * Random stagger for agent checks to prevent thundering herd [GH-546]
+ * More useful metrics are sent to statsd/statsite
+ * Added configuration to set custom HTTP headers (CORS) [GH-558]
+ * Reject invalid configurations to simplify validation [GH-576]
+ * Guard against accidental cluster mixing [GH-580] [GH-260]
+ * Added option to filter DNS results on warning [GH-595]
+ * Improve write throughput with raft log caching [GH-604]
+ * Added ability to bind RPC and HTTP listeners to UNIX sockets [GH-587] [GH-612]
+ * K/V HTTP endpoint returns 400 on conflicting flags [GH-634] [GH-432]
+
+MISC:
+
+ * UI confirms before deleting key sub-tree [GH-520]
+ * More useful output in "consul version" [GH-480]
+ * Many documentation improvements
+ * Reduce log messages when quorum member is logs [GH-566]
+
+UPGRADE NOTES:
+
+ * If `acl_default_policy` is "deny", ensure tokens are updated to enable
+   service registration to avoid a service disruption. The new ACL policy
+   can be submitted with 0.4 before upgrading to 0.5 where it will be
+   enforced.
+
+ * Servers running 0.5.X cannot be mixed with older servers. (Any client
+   version is fine). There is a 15 minute upgrade window where mixed
+   versions are allowed before older servers will panic due to an unsupported
+   internal command. This is due to the new KV tombstones which are internal
+   to servers.
+
+## 0.4.1 (October 20, 2014)
+
+FEATURES:
+
+ * Adding flags for `-retry-join` to attempt a join with
+   configurable retry behavior. [GH-395]
+
+BUG FIXES:
+
+ * Fixed ACL token in UI
+ * Fixed ACL reloading in UI [GH-323]
+ * Fixed long session names in UI [GH-353]
+ * Fixed exit code from remote exec [GH-346]
+ * Fixing only a single watch being run by an agent [GH-337]
+ * Fixing potential race in connection multiplexing
+ * Fixing issue with Session ID and ACL ID generation. [GH-391]
+ * Fixing multiple headers for /v1/event/list endpoint [GH-361]
+ * Fixing graceful leave of leader causing invalid Raft peers [GH-360]
+ * Fixing bug with closing TLS connection on error
+ * Fixing issue with node reaping [GH-371]
+ * Fixing aggressive deadlock time [GH-389]
+ * Fixing syslog filter level [GH-272]
+ * Serf snapshot compaction works on Windows [GH-332]
+ * Raft snapshots work on Windows [GH-265]
+ * Consul service entry clean by clients now possible
+ * Fixing improper deserialization
+
+IMPROVEMENTS:
+
+ * Use "critical" health state instead of "unknown" [GH-341]
+ * Consul service can be targeted for exec [GH-344]
+ * Provide debug logging for session invalidation [GH-390]
+ * Added "Deregister" button to UI [GH-364]
+ * Added `enable_truncate` DNS configuration flag [GH-376]
+ * Reduce mmap() size on 32bit systems [GH-265]
+ * Temporary state is cleaned after an abort [GH-338] [GH-178]
+
+MISC:
+
+ * Health state "unknown" being deprecated
+
+## 0.4.0 (September 5, 2014)
+
+FEATURES:
+
+ * Fine-grained ACL system to restrict access to KV store. Clients
+   use tokens which can be restricted to (read, write, deny) permissions
+   using longest-prefix matches.
+
+ * Watch mechanisms added to invoke a handler when data changes in consul.
+   Used with the `consul watch` command, or by specifying `watches` in
+   an agent configuration.
+
+ * Event system added to support custom user events. Events are fired using
+   the `consul event` command. They are handled using a standard watch.
+
+ * Remote execution using `consul exec`. This allows for command execution on remote
+   instances mediated through Consul.
+
+ * RFC-2782 style DNS lookups supported
+
+ * UI improvements, including support for ACLs.
+
+IMPROVEMENTS:
+
+  * DNS case-insensitivity [GH-189]
+  * Support for HTTP `?pretty` parameter to pretty format JSON output.
+  * Use $SHELL when invoking handlers. [GH-237]
+  * Agent takes the `-encrypt` CLI Flag [GH-245]
+  * New `statsd_add` config for Statsd support. [GH-247]
+  * New `addresses` config for providing an override to `client_addr` for
+    DNS, HTTP, or RPC endpoints. [GH-301] [GH-253]
+  * Support [Checkpoint](http://checkpoint.hashicorp.com) for security bulletins
+    and update announcements.
+
+BUG FIXES:
+
+  * Fixed race condition in `-bootstrap-expect` [GH-254]
+  * Require PUT to /v1/session/destroy [GH-285]
+  * Fixed registration race condition [GH-300] [GH-279]
+
+UPGRADE NOTES:
+
+  * ACL support should not be enabled until all server nodes are running
+  Consul 0.4. Mixed server versions with ACL support enabled may result in
+  panics.
+
+## 0.3.1 (July 21, 2014)
+
+FEATURES:
+
+  * Improved bootstrapping process, thanks to @robxu9
+
+BUG FIXES:
+
+  * Fixed issue with service re-registration [GH-216]
+  * Fixed handling of `-rejoin` flag
+  * Restored 0.2 TLS behavior, thanks to @nelhage [GH-233]
+  * Fix the statsite flags, thanks to @nelhage [GH-243]
+  * Fixed filters on critical / non-passing checks [GH-241]
+  * Fixed initial log compaction crash [GH-297]
+
+IMPROVEMENTS:
+
+  * UI Improvements
+  * Improved handling of Serf snapshot data
+  * Increase reliability of failure detector
+  * More useful logging messages
+
+
+## 0.3.0 (June 13, 2014)
+
+FEATURES:
+
+  * Better, faster, cleaner UI [GH-194] [GH-196]
+  * Sessions, which  act as a binding layer between
+  nodes, checks and KV data. [GH-162]
+  * Key locking. KV data integrates with sessions to
+  enable distributed locking. [GH-162]
+  * DNS lookups can do stale reads and TTLs. [GH-200]
+  * Added new /v1/agent/self endpoint [GH-173]
+  * `reload` command can be used to trigger configuration
+  reload from the CLI [GH-142]
+
+IMPROVEMENTS:
+
+  * `members` has a much cleaner output format [GH-143]
+  * `info` includes build version information
+  * Sorted results for datacneter list [GH-198]
+  * Switch multiplexing to yamux
+  * Allow multiple CA certs in ca_file [GH-174]
+  * Enable logging to syslog. [GH-105]
+  * Allow raw key value lookup [GH-150]
+  * Log encryption enabled [GH-151]
+  * Support `-rejoin` to rejoin a cluster after a previous leave. [GH-110]
+  * Support the "any" wildcard for v1/health/state/ [GH-152]
+  * Defer sync of health check output [GH-157]
+  * Provide output for serfHealth check [GH-176]
+  * Datacenter name is validated [GH-169]
+  * Configurable syslog facilities [GH-170]
+  * Pipelining replication of writes
+  * Raft group commits
+  * Increased stability of leader terms
+  * Prevent previously left nodes from causing re-elections
+
+BUG FIXES:
+
+  * Fixed memory leak in in-memory stats system
+  * Fixing race between RPC and Raft init [GH-160]
+  * Server-local RPC is avoids network [GH-148]
+  * Fixing builds for older OSX [GH-147]
+
+MISC:
+
+  * Fixed missing prefixes on some log messages
+  * Removed the `-role` filter of `members` command
+  * Lots of docs fixes
+
+## 0.2.1 (May 20, 2014)
+
+IMPROVEMENTS:
+
+  * Improved the URL formatting for the key/value editor in the Web UI.
+      Importantly, the editor now allows editing keys with dashes in the
+      name. [GH-119]
+  * The web UI now has cancel and delete folder actions in the key/value
+      editor. [GH-124], [GH-122]
+  * Add flag to agent to write pid to a file. [GH-106]
+  * Time out commands if Raft exceeds command enqueue timeout
+  * Adding support for the `-advertise` CLI flag. [GH-156]
+  * Fixing potential name conflicts on the WAN gossip ring [GH-158]
+  * /v1/catalog/services returns an empty slice instead of null. [GH-145]
+  * `members` command returns exit code 2 if no results. [GH-116]
+
+BUG FIXES:
+
+  * Renaming "separator" to "separator". This is the correct spelling,
+      but both spellings are respected for backwards compatibility. [GH-101]
+  * Private IP is properly found on Windows clients.
+  * Windows agents won't show "failed to decode" errors on every RPC
+      request.
+  * Fixed memory leak with RPC clients. [GH-149]
+  * Serf name conflict resolution disabled. [GH-97]
+  * Raft deadlock possibility fixed. [GH-141]
+
+MISC:
+
+  * Updating to latest version of LMDB
+  * Reduced the limit of KV entries to 512KB. [GH-123].
+  * Warn if any Raft log exceeds 1MB
+  * Lots of docs fixes
+
+## 0.2.0 (May 1, 2014)
+
+FEATURES:
+
+  * Adding Web UI for Consul. This is enabled by providing the `-ui-dir` flag
+      with the path to the web directory. The UI is visited at the standard HTTP
+      address (Defaults to http://127.0.0.1:8500/). There is a demo
+  [available here](http://demo.consul.io).
+  * Adding new read consistency modes. `?consistent` can be used for strongly
+      consistent reads without caveats. `?stale` can be used for stale reads to
+      allow for higher throughput and read scalability. [GH-68]
+  * /v1/health/service/ endpoint can take an optional `?passing` flag
+      to filter to only nodes with passing results. [GH-57]
+  * The KV endpoint supports listing keys with the `?keys` query parameter,
+      and limited up to a separator using `?separator=`.
+
+IMPROVEMENTS:
+
+  * Health check output goes into separate `Output` field instead
+      of overriding `Notes`. [GH-59]
+  * Adding a minimum check interval to prevent checks with extremely
+      low intervals fork bombing. [GH-64]
+  * Raft peer set cleared on leave. [GH-69]
+  * Case insensitive parsing checks. [GH-78]
+  * Increase limit of DB size and Raft log on 64bit systems. [GH-81]
+  * Output of health checks limited to 4K. [GH-83]
+  * More warnings if GOMAXPROCS == 1 [GH-87]
+  * Added runtime information to `consul info`
+
+BUG FIXES:
+
+  * Fixed 404 on /v1/agent/service/deregister and
+      /v1/agent/check/deregister. [GH-95]
+  * Fixed JSON parsing for /v1/agent/check/register [GH-60]
+  * DNS parser can handler period in a tag name. [GH-39]
+  * "application/json" content-type is sent on HTTP requests. [GH-45]
+  * Work around for LMDB delete issue. [GH-85]
+  * Fixed tag gossip propagation for rapid restart. [GH-86]
+
+MISC:
+
+  * More conservative timing values for Raft
+  * Provide a warning if attempting to commit a very large Raft entry
+  * Improved timeliness of registration when server is in bootstrap mode. [GH-72]
+
+## 0.1.0 (April 17, 2014)
+
+  * Initial release

vendor/github.com/hashicorp/consul/GNUmakefile

@@ -0,0 +1,69 @@
+GOTOOLS = \
+	github.com/elazarl/go-bindata-assetfs/... \
+	github.com/jteeuwen/go-bindata/... \
+	github.com/mitchellh/gox \
+	golang.org/x/tools/cmd/cover \
+	golang.org/x/tools/cmd/stringer
+TEST ?= ./...
+GOTAGS ?= consul
+GOFILES ?= $(shell go list $(TEST) | grep -v /vendor/)
+
+# all builds binaries for all targets
+all: bin
+
+bin: tools
+	@mkdir -p bin/
+	@GOTAGS='$(GOTAGS)' sh -c "'$(CURDIR)/scripts/build.sh'"
+
+# dev creates binaries for testing locally - these are put into ./bin and $GOPATH
+dev: format
+	@CONSUL_DEV=1 GOTAGS='$(GOTAGS)' sh -c "'$(CURDIR)/scripts/build.sh'"
+
+# dist builds binaries for all platforms and packages them for distribution
+dist:
+	@GOTAGS='$(GOTAGS)' sh -c "'$(CURDIR)/scripts/dist.sh'"
+
+cov:
+	gocov test ${GOFILES} | gocov-html > /tmp/coverage.html
+	open /tmp/coverage.html
+
+test:
+	@./scripts/verify_no_uuid.sh
+	@env \
+		GOTAGS="${GOTAGS}" \
+		GOFILES="${GOFILES}" \
+		TESTARGS="${TESTARGS}" \
+		sh -c "'$(CURDIR)/scripts/test.sh'"
+
+cover:
+	go test ${GOFILES} --cover
+
+format:
+	@echo "--> Running go fmt"
+	@go fmt ${GOFILES}
+
+vet:
+	@echo "--> Running go vet"
+	@go vet ${GOFILES}; if [ $$? -eq 1 ]; then \
+		echo ""; \
+		echo "Vet found suspicious constructs. Please check the reported constructs"; \
+		echo "and fix them if necessary before submitting the code for review."; \
+		exit 1; \
+	fi
+
+# build the static web ui and build static assets inside a Docker container, the
+# same way a release build works
+ui:
+	@sh -c "'$(CURDIR)/scripts/ui.sh'"
+
+# generates the static web ui that's compiled into the binary
+static-assets:
+	@echo "--> Generating static assets"
+	@go-bindata-assetfs -pkg agent -prefix pkg ./pkg/web_ui/...
+	@mv bindata_assetfs.go command/agent
+	$(MAKE) format
+
+tools:
+	go get -u -v $(GOTOOLS)
+
+.PHONY: all ci bin dev dist cov test cover format vet ui static-assets tools

vendor/github.com/hashicorp/consul/ISSUE_TEMPLATE.md

@@ -0,0 +1,35 @@
+If you have a question, please direct it to the
+[consul mailing list](https://www.consul.io/community.html) if it hasn't been
+addressed in either the [FAQ](https://www.consul.io/docs/faq.html) or in one
+of the [Consul Guides](https://www.consul.io/docs/guides/index.html).
+
+When filing a bug, please include the following:
+
+### `consul version` for both Client and Server
+Client: `[client version here]`
+Server: `[server version here]`
+
+### `consul info` for both Client and Server
+Client:
+```
+[Client `consul info` here]
+```
+
+Server:
+```
+[Server `consul info` here]
+```
+
+### Operating system and Environment details
+
+### Description of the Issue (and unexpected/desired result)
+
+### Reproduction steps
+
+### Log Fragments or Link to [gist](https://gist.github.com/)
+
+Include appropriate Client or Server log fragments.  If the log is longer
+than a few dozen lines, please include the URL to the
+[gist](https://gist.github.com/).
+
+TIP: Use `-log-level=TRACE` on the client and server to capture the maximum log detail.

vendor/github.com/hashicorp/consul/README.md

@@ -0,0 +1,87 @@
+# Consul [![Build Status](https://travis-ci.org/hashicorp/consul.svg?branch=master)](https://travis-ci.org/hashicorp/consul) [![Join the chat at https://gitter.im/hashicorp-consul/Lobby](https://badges.gitter.im/hashicorp-consul/Lobby.svg)](https://gitter.im/hashicorp-consul/Lobby?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+
+* Website: https://www.consul.io
+* Chat: [Gitter](https://gitter.im/hashicorp-consul/Lobby)
+* Mailing list: [Google Groups](https://groups.google.com/group/consul-tool/)
+
+Consul is a tool for service discovery and configuration. Consul is
+distributed, highly available, and extremely scalable.
+
+Consul provides several key features:
+
+* **Service Discovery** - Consul makes it simple for services to register
+  themselves and to discover other services via a DNS or HTTP interface.
+  External services such as SaaS providers can be registered as well.
+
+* **Health Checking** - Health Checking enables Consul to quickly alert
+  operators about any issues in a cluster. The integration with service
+  discovery prevents routing traffic to unhealthy hosts and enables service
+  level circuit breakers.
+
+* **Key/Value Storage** - A flexible key/value store enables storing
+  dynamic configuration, feature flagging, coordination, leader election and
+  more. The simple HTTP API makes it easy to use anywhere.
+
+* **Multi-Datacenter** - Consul is built to be datacenter aware, and can
+  support any number of regions without complex configuration.
+
+Consul runs on Linux, Mac OS X, FreeBSD, Solaris, and Windows.
+
+## Quick Start
+
+An extensive quick start is viewable on the Consul website:
+
+https://www.consul.io/intro/getting-started/install.html
+
+## Documentation
+
+Full, comprehensive documentation is viewable on the Consul website:
+
+https://www.consul.io/docs
+
+## Developing Consul
+
+If you wish to work on Consul itself, you'll first need [Go](https://golang.org)
+installed (version 1.8+ is _required_). Make sure you have Go properly installed,
+including setting up your [GOPATH](https://golang.org/doc/code.html#GOPATH).
+
+Next, clone this repository into `$GOPATH/src/github.com/hashicorp/consul` and
+then just type `make`. In a few moments, you'll have a working `consul` executable:
+
+```
+$ make
+...
+$ bin/consul
+...
+```
+
+*Note: `make` will also place a copy of the binary in the first part of your `$GOPATH`.*
+
+You can run tests by typing `make test`.
+
+If you make any changes to the code, run `make format` in order to automatically
+format the code according to Go standards.
+
+### Building Consul on Windows
+
+Make sure Go 1.8+ is installed on your system and that the Go command is in your
+%PATH%.
+
+For building Consul on Windows, you also need to have MinGW installed.
+[TDM-GCC](http://tdm-gcc.tdragon.net/) is a simple bundle installer which has all
+the required tools for building Consul with MinGW.
+
+Install TDM-GCC and make sure it has been added to your %PATH%.
+
+If all goes well, you should be able to build Consul by running `make.bat` from a
+command prompt.
+
+See also [golang/winstrap](https://github.com/golang/winstrap) and
+[golang/wiki/WindowsBuild](https://github.com/golang/go/wiki/WindowsBuild)
+for more information of how to set up a general Go build environment on Windows
+with MinGW.
+
+## Vendoring
+
+Consul currently uses [govendor](https://github.com/kardianos/govendor) for
+vendoring.

vendor/github.com/hashicorp/consul/api/agent.go

@@ -25,6 +25,8 @@ type AgentService struct {
 	Port              int
 	Address           string
 	EnableTagOverride bool
+	CreateIndex       uint64
+	ModifyIndex       uint64
 }
 
 // AgentMember represents a cluster member known to the agent

vendor/github.com/hashicorp/consul/api/api.go

@@ -2,12 +2,11 @@ package api
 
 import (
 	"bytes"
+	"context"
 	"crypto/tls"
-	"crypto/x509"
 	"encoding/json"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"log"
 	"net"
 	"net/http"
@@ -18,6 +17,7 @@ import (
 	"time"
 
 	"github.com/hashicorp/go-cleanhttp"
+	"github.com/hashicorp/go-rootcerts"
 )
 
 const (
@@ -37,6 +37,26 @@ const (
 	// whether or not to use HTTPS.
 	HTTPSSLEnvName = "CONSUL_HTTP_SSL"
 
+	// HTTPCAFile defines an environment variable name which sets the
+	// CA file to use for talking to Consul over TLS.
+	HTTPCAFile = "CONSUL_CACERT"
+
+	// HTTPCAPath defines an environment variable name which sets the
+	// path to a directory of CA certs to use for talking to Consul over TLS.
+	HTTPCAPath = "CONSUL_CAPATH"
+
+	// HTTPClientCert defines an environment variable name which sets the
+	// client cert file to use for talking to Consul over TLS.
+	HTTPClientCert = "CONSUL_CLIENT_CERT"
+
+	// HTTPClientKey defines an environment variable name which sets the
+	// client key file to use for talking to Consul over TLS.
+	HTTPClientKey = "CONSUL_CLIENT_KEY"
+
+	// HTTPTLSServerName defines an environment variable name which sets the
+	// server name to use as the SNI host when connecting via TLS
+	HTTPTLSServerName = "CONSUL_TLS_SERVER_NAME"
+
 	// HTTPSSLVerifyEnvName defines an environment variable name which sets
 	// whether or not to disable certificate checking.
 	HTTPSSLVerifyEnvName = "CONSUL_HTTP_SSL_VERIFY"
@@ -79,6 +99,11 @@ type QueryOptions struct {
 	// metadata key/value pairs. Currently, only one key/value pair can
 	// be provided for filtering.
 	NodeMeta map[string]string
+
+	// RelayFactor is used in keyring operations to cause reponses to be
+	// relayed back to the sender through N other random nodes. Must be
+	// a value from 0 to 5 (inclusive).
+	RelayFactor uint8
 }
 
 // WriteOptions are used to parameterize a write
@@ -90,6 +115,11 @@ type WriteOptions struct {
 	// Token is used to provide a per-request ACL token
 	// which overrides the agent's default token.
 	Token string
+
+	// RelayFactor is used in keyring operations to cause reponses to be
+	// relayed back to the sender through N other random nodes. Must be
+	// a value from 0 to 5 (inclusive).
+	RelayFactor uint8
 }
 
 // QueryMeta is used to return meta data about a query
@@ -152,6 +182,8 @@ type Config struct {
 	// Token is used to provide a per-request ACL token
 	// which overrides the agent's default token.
 	Token string
+
+	TLSConfig TLSConfig
 }
 
 // TLSConfig is used to generate a TLSClientConfig that's useful for talking to
@@ -166,6 +198,10 @@ type TLSConfig struct {
 	// communication, defaults to the system bundle if not specified.
 	CAFile string
 
+	// CAPath is the optional path to a directory of CA certificates to use for
+	// Consul communication, defaults to the system bundle if not specified.
+	CAPath string
+
 	// CertFile is the optional path to the certificate for Consul
 	// communication. If this is set then you need to also set KeyFile.
 	CertFile string
@@ -243,27 +279,28 @@ func defaultConfig(transportFn func() *http.Transport) *Config {
 		}
 	}
 
-	if verify := os.Getenv(HTTPSSLVerifyEnvName); verify != "" {
-		doVerify, err := strconv.ParseBool(verify)
+	if v := os.Getenv(HTTPTLSServerName); v != "" {
+		config.TLSConfig.Address = v
+	}
+	if v := os.Getenv(HTTPCAFile); v != "" {
+		config.TLSConfig.CAFile = v
+	}
+	if v := os.Getenv(HTTPCAPath); v != "" {
+		config.TLSConfig.CAPath = v
+	}
+	if v := os.Getenv(HTTPClientCert); v != "" {
+		config.TLSConfig.CertFile = v
+	}
+	if v := os.Getenv(HTTPClientKey); v != "" {
+		config.TLSConfig.KeyFile = v
+	}
+	if v := os.Getenv(HTTPSSLVerifyEnvName); v != "" {
+		doVerify, err := strconv.ParseBool(v)
 		if err != nil {
 			log.Printf("[WARN] client: could not parse %s: %s", HTTPSSLVerifyEnvName, err)
 		}
-
 		if !doVerify {
-			tlsClientConfig, err := SetupTLSConfig(&TLSConfig{
-				InsecureSkipVerify: true,
-			})
-
-			// We don't expect this to fail given that we aren't
-			// parsing any of the input, but we panic just in case
-			// since this doesn't have an error return.
-			if err != nil {
-				panic(err)
-			}
-
-			transport := transportFn()
-			transport.TLSClientConfig = tlsClientConfig
-			config.HttpClient.Transport = transport
+			config.TLSConfig.InsecureSkipVerify = true
 		}
 	}
 
@@ -298,17 +335,12 @@ func SetupTLSConfig(tlsConfig *TLSConfig) (*tls.Config, error) {
 		tlsClientConfig.Certificates = []tls.Certificate{tlsCert}
 	}
 
-	if tlsConfig.CAFile != "" {
-		data, err := ioutil.ReadFile(tlsConfig.CAFile)
-		if err != nil {
-			return nil, fmt.Errorf("failed to read CA file: %v", err)
-		}
-
-		caPool := x509.NewCertPool()
-		if !caPool.AppendCertsFromPEM(data) {
-			return nil, fmt.Errorf("failed to parse CA certificate")
-		}
-		tlsClientConfig.RootCAs = caPool
+	rootConfig := &rootcerts.Config{
+		CAFile: tlsConfig.CAFile,
+		CAPath: tlsConfig.CAPath,
+	}
+	if err := rootcerts.ConfigureTLS(tlsClientConfig, rootConfig); err != nil {
+		return nil, err
 	}
 
 	return tlsClientConfig, nil
@@ -336,13 +368,57 @@ func NewClient(config *Config) (*Client, error) {
 		config.HttpClient = defConfig.HttpClient
 	}
 
-	if parts := strings.SplitN(config.Address, "unix://", 2); len(parts) == 2 {
-		trans := cleanhttp.DefaultTransport()
-		trans.Dial = func(_, _ string) (net.Conn, error) {
-			return net.Dial("unix", parts[1])
-		}
-		config.HttpClient = &http.Client{
-			Transport: trans,
+	if config.TLSConfig.Address == "" {
+		config.TLSConfig.Address = defConfig.TLSConfig.Address
+	}
+
+	if config.TLSConfig.CAFile == "" {
+		config.TLSConfig.CAFile = defConfig.TLSConfig.CAFile
+	}
+
+	if config.TLSConfig.CAPath == "" {
+		config.TLSConfig.CAPath = defConfig.TLSConfig.CAPath
+	}
+
+	if config.TLSConfig.CertFile == "" {
+		config.TLSConfig.CertFile = defConfig.TLSConfig.CertFile
+	}
+
+	if config.TLSConfig.KeyFile == "" {
+		config.TLSConfig.KeyFile = defConfig.TLSConfig.KeyFile
+	}
+
+	if !config.TLSConfig.InsecureSkipVerify {
+		config.TLSConfig.InsecureSkipVerify = defConfig.TLSConfig.InsecureSkipVerify
+	}
+
+	tlsClientConfig, err := SetupTLSConfig(&config.TLSConfig)
+
+	// We don't expect this to fail given that we aren't
+	// parsing any of the input, but we panic just in case
+	// since this doesn't have an error return.
+	if err != nil {
+		return nil, err
+	}
+
+	config.HttpClient.Transport.(*http.Transport).TLSClientConfig = tlsClientConfig
+
+	parts := strings.SplitN(config.Address, "://", 2)
+	if len(parts) == 2 {
+		switch parts[0] {
+		case "http":
+		case "https":
+			config.Scheme = "https"
+		case "unix":
+			trans := cleanhttp.DefaultTransport()
+			trans.DialContext = func(_ context.Context, _, _ string) (net.Conn, error) {
+				return net.Dial("unix", parts[1])
+			}
+			config.HttpClient = &http.Client{
+				Transport: trans,
+			}
+		default:
+			return nil, fmt.Errorf("Unknown protocol scheme: %s", parts[0])
 		}
 		config.Address = parts[1]
 	}
@@ -396,6 +472,9 @@ func (r *request) setQueryOptions(q *QueryOptions) {
 			r.params.Add("node-meta", key+":"+value)
 		}
 	}
+	if q.RelayFactor != 0 {
+		r.params.Set("relay-factor", strconv.Itoa(int(q.RelayFactor)))
+	}
 }
 
 // durToMsec converts a duration to a millisecond specified string. If the
@@ -437,6 +516,9 @@ func (r *request) setWriteOptions(q *WriteOptions) {
 	if q.Token != "" {
 		r.header.Set("X-Consul-Token", q.Token)
 	}
+	if q.RelayFactor != 0 {
+		r.params.Set("relay-factor", strconv.Itoa(int(q.RelayFactor)))
+	}
 }
 
 // toHTTP converts the request to an HTTP request

vendor/github.com/hashicorp/consul/api/catalog.go

@@ -6,6 +6,8 @@ type Node struct {
 	Address         string
 	TaggedAddresses map[string]string
 	Meta            map[string]string
+	CreateIndex     uint64
+	ModifyIndex     uint64
 }
 
 type CatalogService struct {

vendor/github.com/hashicorp/consul/api/coordinate.go

@@ -10,10 +10,11 @@ type CoordinateEntry struct {
 	Coord *coordinate.Coordinate
 }
 
-// CoordinateDatacenterMap represents a datacenter and its associated WAN
-// nodes and their associates coordinates.
+// CoordinateDatacenterMap has the coordinates for servers in a given datacenter
+// and area. Network coordinates are only compatible within the same area.
 type CoordinateDatacenterMap struct {
 	Datacenter  string
+	AreaID      string
 	Coordinates []CoordinateEntry
 }
 

vendor/github.com/hashicorp/consul/api/operator.go

@@ -9,155 +9,3 @@ type Operator struct {
 func (c *Client) Operator() *Operator {
 	return &Operator{c}
 }
-
-// RaftServer has information about a server in the Raft configuration.
-type RaftServer struct {
-	// ID is the unique ID for the server. These are currently the same
-	// as the address, but they will be changed to a real GUID in a future
-	// release of Consul.
-	ID string
-
-	// Node is the node name of the server, as known by Consul, or this
-	// will be set to "(unknown)" otherwise.
-	Node string
-
-	// Address is the IP:port of the server, used for Raft communications.
-	Address string
-
-	// Leader is true if this server is the current cluster leader.
-	Leader bool
-
-	// Voter is true if this server has a vote in the cluster. This might
-	// be false if the server is staging and still coming online, or if
-	// it's a non-voting server, which will be added in a future release of
-	// Consul.
-	Voter bool
-}
-
-// RaftConfigration is returned when querying for the current Raft configuration.
-type RaftConfiguration struct {
-	// Servers has the list of servers in the Raft configuration.
-	Servers []*RaftServer
-
-	// Index has the Raft index of this configuration.
-	Index uint64
-}
-
-// keyringRequest is used for performing Keyring operations
-type keyringRequest struct {
-	Key string
-}
-
-// KeyringResponse is returned when listing the gossip encryption keys
-type KeyringResponse struct {
-	// Whether this response is for a WAN ring
-	WAN bool
-
-	// The datacenter name this request corresponds to
-	Datacenter string
-
-	// A map of the encryption keys to the number of nodes they're installed on
-	Keys map[string]int
-
-	// The total number of nodes in this ring
-	NumNodes int
-}
-
-// RaftGetConfiguration is used to query the current Raft peer set.
-func (op *Operator) RaftGetConfiguration(q *QueryOptions) (*RaftConfiguration, error) {
-	r := op.c.newRequest("GET", "/v1/operator/raft/configuration")
-	r.setQueryOptions(q)
-	_, resp, err := requireOK(op.c.doRequest(r))
-	if err != nil {
-		return nil, err
-	}
-	defer resp.Body.Close()
-
-	var out RaftConfiguration
-	if err := decodeBody(resp, &out); err != nil {
-		return nil, err
-	}
-	return &out, nil
-}
-
-// RaftRemovePeerByAddress is used to kick a stale peer (one that it in the Raft
-// quorum but no longer known to Serf or the catalog) by address in the form of
-// "IP:port".
-func (op *Operator) RaftRemovePeerByAddress(address string, q *WriteOptions) error {
-	r := op.c.newRequest("DELETE", "/v1/operator/raft/peer")
-	r.setWriteOptions(q)
-
-	// TODO (slackpad) Currently we made address a query parameter. Once
-	// IDs are in place this will be DELETE /v1/operator/raft/peer/<id>.
-	r.params.Set("address", string(address))
-
-	_, resp, err := requireOK(op.c.doRequest(r))
-	if err != nil {
-		return err
-	}
-
-	resp.Body.Close()
-	return nil
-}
-
-// KeyringInstall is used to install a new gossip encryption key into the cluster
-func (op *Operator) KeyringInstall(key string, q *WriteOptions) error {
-	r := op.c.newRequest("POST", "/v1/operator/keyring")
-	r.setWriteOptions(q)
-	r.obj = keyringRequest{
-		Key: key,
-	}
-	_, resp, err := requireOK(op.c.doRequest(r))
-	if err != nil {
-		return err
-	}
-	resp.Body.Close()
-	return nil
-}
-
-// KeyringList is used to list the gossip keys installed in the cluster
-func (op *Operator) KeyringList(q *QueryOptions) ([]*KeyringResponse, error) {
-	r := op.c.newRequest("GET", "/v1/operator/keyring")
-	r.setQueryOptions(q)
-	_, resp, err := requireOK(op.c.doRequest(r))
-	if err != nil {
-		return nil, err
-	}
-	defer resp.Body.Close()
-
-	var out []*KeyringResponse
-	if err := decodeBody(resp, &out); err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-// KeyringRemove is used to remove a gossip encryption key from the cluster
-func (op *Operator) KeyringRemove(key string, q *WriteOptions) error {
-	r := op.c.newRequest("DELETE", "/v1/operator/keyring")
-	r.setWriteOptions(q)
-	r.obj = keyringRequest{
-		Key: key,
-	}
-	_, resp, err := requireOK(op.c.doRequest(r))
-	if err != nil {
-		return err
-	}
-	resp.Body.Close()
-	return nil
-}
-
-// KeyringUse is used to change the active gossip encryption key
-func (op *Operator) KeyringUse(key string, q *WriteOptions) error {
-	r := op.c.newRequest("PUT", "/v1/operator/keyring")
-	r.setWriteOptions(q)
-	r.obj = keyringRequest{
-		Key: key,
-	}
-	_, resp, err := requireOK(op.c.doRequest(r))
-	if err != nil {
-		return err
-	}
-	resp.Body.Close()
-	return nil
-}

vendor/github.com/hashicorp/consul/api/operator_area.go

@@ -0,0 +1,168 @@
+// The /v1/operator/area endpoints are available only in Consul Enterprise and
+// interact with its network area subsystem. Network areas are used to link
+// together Consul servers in different Consul datacenters. With network areas,
+// Consul datacenters can be linked together in ways other than a fully-connected
+// mesh, as is required for Consul's WAN.
+package api
+
+import (
+	"net"
+	"time"
+)
+
+// Area defines a network area.
+type Area struct {
+	// ID is this identifier for an area (a UUID). This must be left empty
+	// when creating a new area.
+	ID string
+
+	// PeerDatacenter is the peer Consul datacenter that will make up the
+	// other side of this network area. Network areas always involve a pair
+	// of datacenters: the datacenter where the area was created, and the
+	// peer datacenter. This is required.
+	PeerDatacenter string
+
+	// RetryJoin specifies the address of Consul servers to join to, such as
+	// an IPs or hostnames with an optional port number. This is optional.
+	RetryJoin []string
+}
+
+// AreaJoinResponse is returned when a join occurs and gives the result for each
+// address.
+type AreaJoinResponse struct {
+	// The address that was joined.
+	Address string
+
+	// Whether or not the join was a success.
+	Joined bool
+
+	// If we couldn't join, this is the message with information.
+	Error string
+}
+
+// SerfMember is a generic structure for reporting information about members in
+// a Serf cluster. This is only used by the area endpoints right now, but this
+// could be expanded to other endpoints in the future.
+type SerfMember struct {
+	// ID is the node identifier (a UUID).
+	ID string
+
+	// Name is the node name.
+	Name string
+
+	// Addr has the IP address.
+	Addr net.IP
+
+	// Port is the RPC port.
+	Port uint16
+
+	// Datacenter is the DC name.
+	Datacenter string
+
+	// Role is "client", "server", or "unknown".
+	Role string
+
+	// Build has the version of the Consul agent.
+	Build string
+
+	// Protocol is the protocol of the Consul agent.
+	Protocol int
+
+	// Status is the Serf health status "none", "alive", "leaving", "left",
+	// or "failed".
+	Status string
+
+	// RTT is the estimated round trip time from the server handling the
+	// request to the this member. This will be negative if no RTT estimate
+	// is available.
+	RTT time.Duration
+}
+
+// AreaCreate will create a new network area. The ID in the given structure must
+// be empty and a generated ID will be returned on success.
+func (op *Operator) AreaCreate(area *Area, q *WriteOptions) (string, *WriteMeta, error) {
+	r := op.c.newRequest("POST", "/v1/operator/area")
+	r.setWriteOptions(q)
+	r.obj = area
+	rtt, resp, err := requireOK(op.c.doRequest(r))
+	if err != nil {
+		return "", nil, err
+	}
+	defer resp.Body.Close()
+
+	wm := &WriteMeta{}
+	wm.RequestTime = rtt
+
+	var out struct{ ID string }
+	if err := decodeBody(resp, &out); err != nil {
+		return "", nil, err
+	}
+	return out.ID, wm, nil
+}
+
+// AreaGet returns a single network area.
+func (op *Operator) AreaGet(areaID string, q *QueryOptions) ([]*Area, *QueryMeta, error) {
+	var out []*Area
+	qm, err := op.c.query("/v1/operator/area/"+areaID, &out, q)
+	if err != nil {
+		return nil, nil, err
+	}
+	return out, qm, nil
+}
+
+// AreaList returns all the available network areas.
+func (op *Operator) AreaList(q *QueryOptions) ([]*Area, *QueryMeta, error) {
+	var out []*Area
+	qm, err := op.c.query("/v1/operator/area", &out, q)
+	if err != nil {
+		return nil, nil, err
+	}
+	return out, qm, nil
+}
+
+// AreaDelete deletes the given network area.
+func (op *Operator) AreaDelete(areaID string, q *WriteOptions) (*WriteMeta, error) {
+	r := op.c.newRequest("DELETE", "/v1/operator/area/"+areaID)
+	r.setWriteOptions(q)
+	rtt, resp, err := requireOK(op.c.doRequest(r))
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+
+	wm := &WriteMeta{}
+	wm.RequestTime = rtt
+	return wm, nil
+}
+
+// AreaJoin attempts to join the given set of join addresses to the given
+// network area. See the Area structure for details about join addresses.
+func (op *Operator) AreaJoin(areaID string, addresses []string, q *WriteOptions) ([]*AreaJoinResponse, *WriteMeta, error) {
+	r := op.c.newRequest("PUT", "/v1/operator/area/"+areaID+"/join")
+	r.setWriteOptions(q)
+	r.obj = addresses
+	rtt, resp, err := requireOK(op.c.doRequest(r))
+	if err != nil {
+		return nil, nil, err
+	}
+	defer resp.Body.Close()
+
+	wm := &WriteMeta{}
+	wm.RequestTime = rtt
+
+	var out []*AreaJoinResponse
+	if err := decodeBody(resp, &out); err != nil {
+		return nil, nil, err
+	}
+	return out, wm, nil
+}
+
+// AreaMembers lists the Serf information about the members in the given area.
+func (op *Operator) AreaMembers(areaID string, q *QueryOptions) ([]*SerfMember, *QueryMeta, error) {
+	var out []*SerfMember
+	qm, err := op.c.query("/v1/operator/area/"+areaID+"/members", &out, q)
+	if err != nil {
+		return nil, nil, err
+	}
+	return out, qm, nil
+}

vendor/github.com/hashicorp/consul/api/operator_autopilot.go

@@ -0,0 +1,215 @@
+package api
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"strconv"
+	"strings"
+	"time"
+)
+
+// AutopilotConfiguration is used for querying/setting the Autopilot configuration.
+// Autopilot helps manage operator tasks related to Consul servers like removing
+// failed servers from the Raft quorum.
+type AutopilotConfiguration struct {
+	// CleanupDeadServers controls whether to remove dead servers from the Raft
+	// peer list when a new server joins
+	CleanupDeadServers bool
+
+	// LastContactThreshold is the limit on the amount of time a server can go
+	// without leader contact before being considered unhealthy.
+	LastContactThreshold *ReadableDuration
+
+	// MaxTrailingLogs is the amount of entries in the Raft Log that a server can
+	// be behind before being considered unhealthy.
+	MaxTrailingLogs uint64
+
+	// ServerStabilizationTime is the minimum amount of time a server must be
+	// in a stable, healthy state before it can be added to the cluster. Only
+	// applicable with Raft protocol version 3 or higher.
+	ServerStabilizationTime *ReadableDuration
+
+	// (Enterprise-only) RedundancyZoneTag is the node tag to use for separating
+	// servers into zones for redundancy. If left blank, this feature will be disabled.
+	RedundancyZoneTag string
+
+	// (Enterprise-only) DisableUpgradeMigration will disable Autopilot's upgrade migration
+	// strategy of waiting until enough newer-versioned servers have been added to the
+	// cluster before promoting them to voters.
+	DisableUpgradeMigration bool
+
+	// CreateIndex holds the index corresponding the creation of this configuration.
+	// This is a read-only field.
+	CreateIndex uint64
+
+	// ModifyIndex will be set to the index of the last update when retrieving the
+	// Autopilot configuration. Resubmitting a configuration with
+	// AutopilotCASConfiguration will perform a check-and-set operation which ensures
+	// there hasn't been a subsequent update since the configuration was retrieved.
+	ModifyIndex uint64
+}
+
+// ServerHealth is the health (from the leader's point of view) of a server.
+type ServerHealth struct {
+	// ID is the raft ID of the server.
+	ID string
+
+	// Name is the node name of the server.
+	Name string
+
+	// Address is the address of the server.
+	Address string
+
+	// The status of the SerfHealth check for the server.
+	SerfStatus string
+
+	// Version is the Consul version of the server.
+	Version string
+
+	// Leader is whether this server is currently the leader.
+	Leader bool
+
+	// LastContact is the time since this node's last contact with the leader.
+	LastContact *ReadableDuration
+
+	// LastTerm is the highest leader term this server has a record of in its Raft log.
+	LastTerm uint64
+
+	// LastIndex is the last log index this server has a record of in its Raft log.
+	LastIndex uint64
+
+	// Healthy is whether or not the server is healthy according to the current
+	// Autopilot config.
+	Healthy bool
+
+	// Voter is whether this is a voting server.
+	Voter bool
+
+	// StableSince is the last time this server's Healthy value changed.
+	StableSince time.Time
+}
+
+// OperatorHealthReply is a representation of the overall health of the cluster
+type OperatorHealthReply struct {
+	// Healthy is true if all the servers in the cluster are healthy.
+	Healthy bool
+
+	// FailureTolerance is the number of healthy servers that could be lost without
+	// an outage occurring.
+	FailureTolerance int
+
+	// Servers holds the health of each server.
+	Servers []ServerHealth
+}
+
+// ReadableDuration is a duration type that is serialized to JSON in human readable format.
+type ReadableDuration time.Duration
+
+func NewReadableDuration(dur time.Duration) *ReadableDuration {
+	d := ReadableDuration(dur)
+	return &d
+}
+
+func (d *ReadableDuration) String() string {
+	return d.Duration().String()
+}
+
+func (d *ReadableDuration) Duration() time.Duration {
+	if d == nil {
+		return time.Duration(0)
+	}
+	return time.Duration(*d)
+}
+
+func (d *ReadableDuration) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf(`"%s"`, d.Duration().String())), nil
+}
+
+func (d *ReadableDuration) UnmarshalJSON(raw []byte) error {
+	if d == nil {
+		return fmt.Errorf("cannot unmarshal to nil pointer")
+	}
+
+	str := string(raw)
+	if len(str) < 2 || str[0] != '"' || str[len(str)-1] != '"' {
+		return fmt.Errorf("must be enclosed with quotes: %s", str)
+	}
+	dur, err := time.ParseDuration(str[1 : len(str)-1])
+	if err != nil {
+		return err
+	}
+	*d = ReadableDuration(dur)
+	return nil
+}
+
+// AutopilotGetConfiguration is used to query the current Autopilot configuration.
+func (op *Operator) AutopilotGetConfiguration(q *QueryOptions) (*AutopilotConfiguration, error) {
+	r := op.c.newRequest("GET", "/v1/operator/autopilot/configuration")
+	r.setQueryOptions(q)
+	_, resp, err := requireOK(op.c.doRequest(r))
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+
+	var out AutopilotConfiguration
+	if err := decodeBody(resp, &out); err != nil {
+		return nil, err
+	}
+
+	return &out, nil
+}
+
+// AutopilotSetConfiguration is used to set the current Autopilot configuration.
+func (op *Operator) AutopilotSetConfiguration(conf *AutopilotConfiguration, q *WriteOptions) error {
+	r := op.c.newRequest("PUT", "/v1/operator/autopilot/configuration")
+	r.setWriteOptions(q)
+	r.obj = conf
+	_, resp, err := requireOK(op.c.doRequest(r))
+	if err != nil {
+		return err
+	}
+	resp.Body.Close()
+	return nil
+}
+
+// AutopilotCASConfiguration is used to perform a Check-And-Set update on the
+// Autopilot configuration. The ModifyIndex value will be respected. Returns
+// true on success or false on failures.
+func (op *Operator) AutopilotCASConfiguration(conf *AutopilotConfiguration, q *WriteOptions) (bool, error) {
+	r := op.c.newRequest("PUT", "/v1/operator/autopilot/configuration")
+	r.setWriteOptions(q)
+	r.params.Set("cas", strconv.FormatUint(conf.ModifyIndex, 10))
+	r.obj = conf
+	_, resp, err := requireOK(op.c.doRequest(r))
+	if err != nil {
+		return false, err
+	}
+	defer resp.Body.Close()
+
+	var buf bytes.Buffer
+	if _, err := io.Copy(&buf, resp.Body); err != nil {
+		return false, fmt.Errorf("Failed to read response: %v", err)
+	}
+	res := strings.Contains(string(buf.Bytes()), "true")
+
+	return res, nil
+}
+
+// AutopilotServerHealth
+func (op *Operator) AutopilotServerHealth(q *QueryOptions) (*OperatorHealthReply, error) {
+	r := op.c.newRequest("GET", "/v1/operator/autopilot/health")
+	r.setQueryOptions(q)
+	_, resp, err := requireOK(op.c.doRequest(r))
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+
+	var out OperatorHealthReply
+	if err := decodeBody(resp, &out); err != nil {
+		return nil, err
+	}
+	return &out, nil
+}

vendor/github.com/hashicorp/consul/api/operator_keyring.go

@@ -0,0 +1,83 @@
+package api
+
+// keyringRequest is used for performing Keyring operations
+type keyringRequest struct {
+	Key string
+}
+
+// KeyringResponse is returned when listing the gossip encryption keys
+type KeyringResponse struct {
+	// Whether this response is for a WAN ring
+	WAN bool
+
+	// The datacenter name this request corresponds to
+	Datacenter string
+
+	// A map of the encryption keys to the number of nodes they're installed on
+	Keys map[string]int
+
+	// The total number of nodes in this ring
+	NumNodes int
+}
+
+// KeyringInstall is used to install a new gossip encryption key into the cluster
+func (op *Operator) KeyringInstall(key string, q *WriteOptions) error {
+	r := op.c.newRequest("POST", "/v1/operator/keyring")
+	r.setWriteOptions(q)
+	r.obj = keyringRequest{
+		Key: key,
+	}
+	_, resp, err := requireOK(op.c.doRequest(r))
+	if err != nil {
+		return err
+	}
+	resp.Body.Close()
+	return nil
+}
+
+// KeyringList is used to list the gossip keys installed in the cluster
+func (op *Operator) KeyringList(q *QueryOptions) ([]*KeyringResponse, error) {
+	r := op.c.newRequest("GET", "/v1/operator/keyring")
+	r.setQueryOptions(q)
+	_, resp, err := requireOK(op.c.doRequest(r))
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+
+	var out []*KeyringResponse
+	if err := decodeBody(resp, &out); err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+// KeyringRemove is used to remove a gossip encryption key from the cluster
+func (op *Operator) KeyringRemove(key string, q *WriteOptions) error {
+	r := op.c.newRequest("DELETE", "/v1/operator/keyring")
+	r.setWriteOptions(q)
+	r.obj = keyringRequest{
+		Key: key,
+	}
+	_, resp, err := requireOK(op.c.doRequest(r))
+	if err != nil {
+		return err
+	}
+	resp.Body.Close()
+	return nil
+}
+
+// KeyringUse is used to change the active gossip encryption key
+func (op *Operator) KeyringUse(key string, q *WriteOptions) error {
+	r := op.c.newRequest("PUT", "/v1/operator/keyring")
+	r.setWriteOptions(q)
+	r.obj = keyringRequest{
+		Key: key,
+	}
+	_, resp, err := requireOK(op.c.doRequest(r))
+	if err != nil {
+		return err
+	}
+	resp.Body.Close()
+	return nil
+}

vendor/github.com/hashicorp/consul/api/operator_raft.go

@@ -0,0 +1,86 @@
+package api
+
+// RaftServer has information about a server in the Raft configuration.
+type RaftServer struct {
+	// ID is the unique ID for the server. These are currently the same
+	// as the address, but they will be changed to a real GUID in a future
+	// release of Consul.
+	ID string
+
+	// Node is the node name of the server, as known by Consul, or this
+	// will be set to "(unknown)" otherwise.
+	Node string
+
+	// Address is the IP:port of the server, used for Raft communications.
+	Address string
+
+	// Leader is true if this server is the current cluster leader.
+	Leader bool
+
+	// Voter is true if this server has a vote in the cluster. This might
+	// be false if the server is staging and still coming online, or if
+	// it's a non-voting server, which will be added in a future release of
+	// Consul.
+	Voter bool
+}
+
+// RaftConfigration is returned when querying for the current Raft configuration.
+type RaftConfiguration struct {
+	// Servers has the list of servers in the Raft configuration.
+	Servers []*RaftServer
+
+	// Index has the Raft index of this configuration.
+	Index uint64
+}
+
+// RaftGetConfiguration is used to query the current Raft peer set.
+func (op *Operator) RaftGetConfiguration(q *QueryOptions) (*RaftConfiguration, error) {
+	r := op.c.newRequest("GET", "/v1/operator/raft/configuration")
+	r.setQueryOptions(q)
+	_, resp, err := requireOK(op.c.doRequest(r))
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+
+	var out RaftConfiguration
+	if err := decodeBody(resp, &out); err != nil {
+		return nil, err
+	}
+	return &out, nil
+}
+
+// RaftRemovePeerByAddress is used to kick a stale peer (one that it in the Raft
+// quorum but no longer known to Serf or the catalog) by address in the form of
+// "IP:port".
+func (op *Operator) RaftRemovePeerByAddress(address string, q *WriteOptions) error {
+	r := op.c.newRequest("DELETE", "/v1/operator/raft/peer")
+	r.setWriteOptions(q)
+
+	r.params.Set("address", string(address))
+
+	_, resp, err := requireOK(op.c.doRequest(r))
+	if err != nil {
+		return err
+	}
+
+	resp.Body.Close()
+	return nil
+}
+
+// RaftRemovePeerByID is used to kick a stale peer (one that it in the Raft
+// quorum but no longer known to Serf or the catalog) by ID.
+func (op *Operator) RaftRemovePeerByID(id string, q *WriteOptions) error {
+	r := op.c.newRequest("DELETE", "/v1/operator/raft/peer")
+	r.setWriteOptions(q)
+
+	r.params.Set("id", string(id))
+
+	_, resp, err := requireOK(op.c.doRequest(r))
+	if err != nil {
+		return err
+	}
+
+	resp.Body.Close()
+	return nil
+}

vendor/github.com/hashicorp/consul/commands.go

@@ -0,0 +1,368 @@
+package main
+
+import (
+	"os"
+	"os/signal"
+	"syscall"
+
+	"github.com/hashicorp/consul/command"
+	"github.com/hashicorp/consul/command/agent"
+	"github.com/hashicorp/consul/command/base"
+	"github.com/hashicorp/consul/version"
+	"github.com/mitchellh/cli"
+)
+
+// Commands is the mapping of all the available Consul commands.
+var Commands map[string]cli.CommandFactory
+
+func init() {
+	ui := &cli.BasicUi{Writer: os.Stdout, ErrorWriter: os.Stderr}
+
+	Commands = map[string]cli.CommandFactory{
+		"agent": func() (cli.Command, error) {
+			return &agent.Command{
+				Command: base.Command{
+					Flags: base.FlagSetNone,
+					Ui:    ui,
+				},
+				Revision:          version.GitCommit,
+				Version:           version.Version,
+				VersionPrerelease: version.VersionPrerelease,
+				HumanVersion:      version.GetHumanVersion(),
+				ShutdownCh:        make(chan struct{}),
+			}, nil
+		},
+
+		"configtest": func() (cli.Command, error) {
+			return &command.ConfigTestCommand{
+				Command: base.Command{
+					Flags: base.FlagSetNone,
+					Ui:    ui,
+				},
+			}, nil
+		},
+
+		"event": func() (cli.Command, error) {
+			return &command.EventCommand{
+				Command: base.Command{
+					Flags: base.FlagSetHTTP,
+					Ui:    ui,
+				},
+			}, nil
+		},
+
+		"exec": func() (cli.Command, error) {
+			return &command.ExecCommand{
+				ShutdownCh: makeShutdownCh(),
+				Command: base.Command{
+					Flags: base.FlagSetHTTP,
+					Ui:    ui,
+				},
+			}, nil
+		},
+
+		"force-leave": func() (cli.Command, error) {
+			return &command.ForceLeaveCommand{
+				Command: base.Command{
+					Flags: base.FlagSetClientHTTP,
+					Ui:    ui,
+				},
+			}, nil
+		},
+
+		"info": func() (cli.Command, error) {
+			return &command.InfoCommand{
+				Command: base.Command{
+					Ui:    ui,
+					Flags: base.FlagSetClientHTTP,
+				},
+			}, nil
+		},
+
+		"join": func() (cli.Command, error) {
+			return &command.JoinCommand{
+				Command: base.Command{
+					Ui:    ui,
+					Flags: base.FlagSetClientHTTP,
+				},
+			}, nil
+		},
+
+		"keygen": func() (cli.Command, error) {
+			return &command.KeygenCommand{
+				Command: base.Command{
+					Ui:    ui,
+					Flags: base.FlagSetNone,
+				},
+			}, nil
+		},
+
+		"keyring": func() (cli.Command, error) {
+			return &command.KeyringCommand{
+				Command: base.Command{
+					Ui:    ui,
+					Flags: base.FlagSetClientHTTP,
+				},
+			}, nil
+		},
+
+		"kv": func() (cli.Command, error) {
+			return &command.KVCommand{
+				Command: base.Command{
+					Ui:    ui,
+					Flags: base.FlagSetNone,
+				},
+			}, nil
+		},
+
+		"kv delete": func() (cli.Command, error) {
+			return &command.KVDeleteCommand{
+				Command: base.Command{
+					Ui:    ui,
+					Flags: base.FlagSetHTTP,
+				},
+			}, nil
+		},
+
+		"kv get": func() (cli.Command, error) {
+			return &command.KVGetCommand{
+				Command: base.Command{
+					Ui:    ui,
+					Flags: base.FlagSetHTTP,
+				},
+			}, nil
+		},
+
+		"kv put": func() (cli.Command, error) {
+			return &command.KVPutCommand{
+				Command: base.Command{
+					Ui:    ui,
+					Flags: base.FlagSetHTTP,
+				},
+			}, nil
+		},
+
+		"kv export": func() (cli.Command, error) {
+			return &command.KVExportCommand{
+				Command: base.Command{
+					Ui:    ui,
+					Flags: base.FlagSetHTTP,
+				},
+			}, nil
+		},
+
+		"kv import": func() (cli.Command, error) {
+			return &command.KVImportCommand{
+				Command: base.Command{
+					Ui:    ui,
+					Flags: base.FlagSetHTTP,
+				},
+			}, nil
+		},
+
+		"leave": func() (cli.Command, error) {
+			return &command.LeaveCommand{
+				Command: base.Command{
+					Flags: base.FlagSetClientHTTP,
+					Ui:    ui,
+				},
+			}, nil
+		},
+
+		"lock": func() (cli.Command, error) {
+			return &command.LockCommand{
+				ShutdownCh: makeShutdownCh(),
+				Command: base.Command{
+					Flags: base.FlagSetHTTP,
+					Ui:    ui,
+				},
+			}, nil
+		},
+
+		"maint": func() (cli.Command, error) {
+			return &command.MaintCommand{
+				Command: base.Command{
+					Flags: base.FlagSetClientHTTP,
+					Ui:    ui,
+				},
+			}, nil
+		},
+
+		"members": func() (cli.Command, error) {
+			return &command.MembersCommand{
+				Command: base.Command{
+					Flags: base.FlagSetClientHTTP,
+					Ui:    ui,
+				},
+			}, nil
+		},
+
+		"monitor": func() (cli.Command, error) {
+			return &command.MonitorCommand{
+				ShutdownCh: makeShutdownCh(),
+				Command: base.Command{
+					Flags: base.FlagSetClientHTTP,
+					Ui:    ui,
+				},
+			}, nil
+		},
+
+		"operator": func() (cli.Command, error) {
+			return &command.OperatorCommand{
+				Command: base.Command{
+					Flags: base.FlagSetNone,
+					Ui:    ui,
+				},
+			}, nil
+		},
+
+		"operator autopilot": func() (cli.Command, error) {
+			return &command.OperatorAutopilotCommand{
+				Command: base.Command{
+					Flags: base.FlagSetNone,
+					Ui:    ui,
+				},
+			}, nil
+		},
+
+		"operator autopilot get-config": func() (cli.Command, error) {
+			return &command.OperatorAutopilotGetCommand{
+				Command: base.Command{
+					Flags: base.FlagSetHTTP,
+					Ui:    ui,
+				},
+			}, nil
+		},
+
+		"operator autopilot set-config": func() (cli.Command, error) {
+			return &command.OperatorAutopilotSetCommand{
+				Command: base.Command{
+					Flags: base.FlagSetHTTP,
+					Ui:    ui,
+				},
+			}, nil
+		},
+
+		"operator raft": func() (cli.Command, error) {
+			return &command.OperatorRaftCommand{
+				Command: base.Command{
+					Flags: base.FlagSetHTTP,
+					Ui:    ui,
+				},
+			}, nil
+		},
+
+		"operator raft list-peers": func() (cli.Command, error) {
+			return &command.OperatorRaftListCommand{
+				Command: base.Command{
+					Flags: base.FlagSetHTTP,
+					Ui:    ui,
+				},
+			}, nil
+		},
+
+		"operator raft remove-peer": func() (cli.Command, error) {
+			return &command.OperatorRaftRemoveCommand{
+				Command: base.Command{
+					Flags: base.FlagSetHTTP,
+					Ui:    ui,
+				},
+			}, nil
+		},
+
+		"reload": func() (cli.Command, error) {
+			return &command.ReloadCommand{
+				Command: base.Command{
+					Flags: base.FlagSetClientHTTP,
+					Ui:    ui,
+				},
+			}, nil
+		},
+
+		"rtt": func() (cli.Command, error) {
+			return &command.RTTCommand{
+				Command: base.Command{
+					Flags: base.FlagSetClientHTTP,
+					Ui:    ui,
+				},
+			}, nil
+		},
+
+		"snapshot": func() (cli.Command, error) {
+			return &command.SnapshotCommand{
+				Ui: ui,
+			}, nil
+		},
+
+		"snapshot restore": func() (cli.Command, error) {
+			return &command.SnapshotRestoreCommand{
+				Command: base.Command{
+					Flags: base.FlagSetHTTP,
+					Ui:    ui,
+				},
+			}, nil
+		},
+
+		"snapshot save": func() (cli.Command, error) {
+			return &command.SnapshotSaveCommand{
+				Command: base.Command{
+					Flags: base.FlagSetHTTP,
+					Ui:    ui,
+				},
+			}, nil
+		},
+
+		"snapshot inspect": func() (cli.Command, error) {
+			return &command.SnapshotInspectCommand{
+				Command: base.Command{
+					Flags: base.FlagSetNone,
+					Ui:    ui,
+				},
+			}, nil
+		},
+
+		"validate": func() (cli.Command, error) {
+			return &command.ValidateCommand{
+				Command: base.Command{
+					Flags: base.FlagSetNone,
+					Ui:    ui,
+				},
+			}, nil
+		},
+
+		"version": func() (cli.Command, error) {
+			return &command.VersionCommand{
+				HumanVersion: version.GetHumanVersion(),
+				Ui:           ui,
+			}, nil
+		},
+
+		"watch": func() (cli.Command, error) {
+			return &command.WatchCommand{
+				ShutdownCh: makeShutdownCh(),
+				Command: base.Command{
+					Flags: base.FlagSetHTTP,
+					Ui:    ui,
+				},
+			}, nil
+		},
+	}
+}
+
+// makeShutdownCh returns a channel that can be used for shutdown
+// notifications for commands. This channel will send a message for every
+// interrupt or SIGTERM received.
+func makeShutdownCh() <-chan struct{} {
+	resultCh := make(chan struct{})
+
+	signalCh := make(chan os.Signal, 4)
+	signal.Notify(signalCh, os.Interrupt, syscall.SIGTERM)
+	go func() {
+		for {
+			<-signalCh
+			resultCh <- struct{}{}
+		}
+	}()
+
+	return resultCh
+}

vendor/github.com/hashicorp/consul/consul/structs/operator.go

@@ -1,9 +1,44 @@
 package structs
 
 import (
+	"time"
+
 	"github.com/hashicorp/raft"
+	"github.com/hashicorp/serf/serf"
 )
 
+// AutopilotConfig holds the Autopilot configuration for a cluster.
+type AutopilotConfig struct {
+	// CleanupDeadServers controls whether to remove dead servers when a new
+	// server is added to the Raft peers.
+	CleanupDeadServers bool
+
+	// LastContactThreshold is the limit on the amount of time a server can go
+	// without leader contact before being considered unhealthy.
+	LastContactThreshold time.Duration
+
+	// MaxTrailingLogs is the amount of entries in the Raft Log that a server can
+	// be behind before being considered unhealthy.
+	MaxTrailingLogs uint64
+
+	// ServerStabilizationTime is the minimum amount of time a server must be
+	// in a stable, healthy state before it can be added to the cluster. Only
+	// applicable with Raft protocol version 3 or higher.
+	ServerStabilizationTime time.Duration
+
+	// (Enterprise-only) RedundancyZoneTag is the node tag to use for separating
+	// servers into zones for redundancy. If left blank, this feature will be disabled.
+	RedundancyZoneTag string
+
+	// (Enterprise-only) DisableUpgradeMigration will disable Autopilot's upgrade migration
+	// strategy of waiting until enough newer-versioned servers have been added to the
+	// cluster before promoting them to voters.
+	DisableUpgradeMigration bool
+
+	// RaftIndex stores the create/modify indexes of this configuration.
+	RaftIndex
+}
+
 // RaftServer has information about a server in the Raft configuration.
 type RaftServer struct {
 	// ID is the unique ID for the server. These are currently the same
@@ -38,20 +73,149 @@ type RaftConfigurationResponse struct {
 	Index uint64
 }
 
-// RaftPeerByAddressRequest is used by the Operator endpoint to apply a Raft
+// RaftRemovePeerRequest is used by the Operator endpoint to apply a Raft
 // operation on a specific Raft peer by address in the form of "IP:port".
-type RaftPeerByAddressRequest struct {
+type RaftRemovePeerRequest struct {
 	// Datacenter is the target this request is intended for.
 	Datacenter string
 
 	// Address is the peer to remove, in the form "IP:port".
 	Address raft.ServerAddress
 
+	// ID is the peer ID to remove.
+	ID raft.ServerID
+
 	// WriteRequest holds the ACL token to go along with this request.
 	WriteRequest
 }
 
 // RequestDatacenter returns the datacenter for a given request.
-func (op *RaftPeerByAddressRequest) RequestDatacenter() string {
+func (op *RaftRemovePeerRequest) RequestDatacenter() string {
 	return op.Datacenter
 }
+
+// AutopilotSetConfigRequest is used by the Operator endpoint to update the
+// current Autopilot configuration of the cluster.
+type AutopilotSetConfigRequest struct {
+	// Datacenter is the target this request is intended for.
+	Datacenter string
+
+	// Config is the new Autopilot configuration to use.
+	Config AutopilotConfig
+
+	// CAS controls whether to use check-and-set semantics for this request.
+	CAS bool
+
+	// WriteRequest holds the ACL token to go along with this request.
+	WriteRequest
+}
+
+// RequestDatacenter returns the datacenter for a given request.
+func (op *AutopilotSetConfigRequest) RequestDatacenter() string {
+	return op.Datacenter
+}
+
+// ServerHealth is the health (from the leader's point of view) of a server.
+type ServerHealth struct {
+	// ID is the raft ID of the server.
+	ID string
+
+	// Name is the node name of the server.
+	Name string
+
+	// Address is the address of the server.
+	Address string
+
+	// The status of the SerfHealth check for the server.
+	SerfStatus serf.MemberStatus
+
+	// Version is the Consul version of the server.
+	Version string
+
+	// Leader is whether this server is currently the leader.
+	Leader bool
+
+	// LastContact is the time since this node's last contact with the leader.
+	LastContact time.Duration
+
+	// LastTerm is the highest leader term this server has a record of in its Raft log.
+	LastTerm uint64
+
+	// LastIndex is the last log index this server has a record of in its Raft log.
+	LastIndex uint64
+
+	// Healthy is whether or not the server is healthy according to the current
+	// Autopilot config.
+	Healthy bool
+
+	// Voter is whether this is a voting server.
+	Voter bool
+
+	// StableSince is the last time this server's Healthy value changed.
+	StableSince time.Time
+}
+
+// IsHealthy determines whether this ServerHealth is considered healthy
+// based on the given Autopilot config
+func (h *ServerHealth) IsHealthy(lastTerm uint64, leaderLastIndex uint64, autopilotConf *AutopilotConfig) bool {
+	if h.SerfStatus != serf.StatusAlive {
+		return false
+	}
+
+	if h.LastContact > autopilotConf.LastContactThreshold || h.LastContact < 0 {
+		return false
+	}
+
+	if h.LastTerm != lastTerm {
+		return false
+	}
+
+	if leaderLastIndex > autopilotConf.MaxTrailingLogs && h.LastIndex < leaderLastIndex-autopilotConf.MaxTrailingLogs {
+		return false
+	}
+
+	return true
+}
+
+// IsStable returns true if the ServerHealth is in a stable, passing state
+// according to the given AutopilotConfig
+func (h *ServerHealth) IsStable(now time.Time, conf *AutopilotConfig) bool {
+	if h == nil {
+		return false
+	}
+
+	if !h.Healthy {
+		return false
+	}
+
+	if now.Sub(h.StableSince) < conf.ServerStabilizationTime {
+		return false
+	}
+
+	return true
+}
+
+// ServerStats holds miscellaneous Raft metrics for a server
+type ServerStats struct {
+	// LastContact is the time since this node's last contact with the leader.
+	LastContact string
+
+	// LastTerm is the highest leader term this server has a record of in its Raft log.
+	LastTerm uint64
+
+	// LastIndex is the last log index this server has a record of in its Raft log.
+	LastIndex uint64
+}
+
+// OperatorHealthReply is a representation of the overall health of the cluster
+type OperatorHealthReply struct {
+	// Healthy is true if all the servers in the cluster are healthy.
+	Healthy bool
+
+	// FailureTolerance is the number of healthy servers that could be lost without
+	// an outage occurring.
+	FailureTolerance int
+
+	// Servers holds the health of each server.
+	Servers []ServerHealth
+}

vendor/github.com/hashicorp/consul/consul/structs/structs.go

@@ -40,6 +40,8 @@ const (
 	CoordinateBatchUpdateType
 	PreparedQueryRequestType
 	TxnRequestType
+	AutopilotRequestType
+	AreaRequestType
 )
 
 const (
@@ -199,6 +201,14 @@ type RegisterRequest struct {
 	Service         *NodeService
 	Check           *HealthCheck
 	Checks          HealthChecks
+
+	// SkipNodeUpdate can be used when a register request is intended for
+	// updating a service and/or checks, but doesn't want to overwrite any
+	// node information if the node is already registered. If the node
+	// doesn't exist, it will still be created, but if the node exists, any
+	// node portion of this update will not apply.
+	SkipNodeUpdate bool
+
 	WriteRequest
 }
 
@@ -215,6 +225,12 @@ func (r *RegisterRequest) ChangesNode(node *Node) bool {
 		return true
 	}
 
+	// If we've been asked to skip the node update, then say there are no
+	// changes.
+	if r.SkipNodeUpdate {
+		return false
+	}
+
 	// Check if any of the node-level fields are being changed.
 	if r.ID != node.ID ||
 		r.Node != node.Node ||
@@ -899,9 +915,11 @@ type IndexedCoordinates struct {
 }
 
 // DatacenterMap is used to represent a list of nodes with their raw coordinates,
-// associated with a datacenter.
+// associated with a datacenter. Coordinates are only compatible between nodes in
+// the same area.
 type DatacenterMap struct {
 	Datacenter  string
+	AreaID      types.AreaID
 	Coordinates Coordinates
 }
 

vendor/github.com/hashicorp/consul/lib/rtt.go

@@ -0,0 +1,28 @@
+package lib
+
+import (
+	"math"
+	"time"
+
+	"github.com/hashicorp/serf/coordinate"
+)
+
+// ComputeDistance returns the distance between the two network coordinates in
+// seconds. If either of the coordinates is nil then this will return positive
+// infinity.
+func ComputeDistance(a *coordinate.Coordinate, b *coordinate.Coordinate) float64 {
+	if a == nil || b == nil {
+		return math.Inf(1.0)
+	}
+
+	return a.DistanceTo(b).Seconds()
+}
+
+// GenerateCoordinate creates a new coordinate with the given distance from the
+// origin. This should only be used for tests.
+func GenerateCoordinate(rtt time.Duration) *coordinate.Coordinate {
+	coord := coordinate.NewCoordinate(coordinate.DefaultConfig())
+	coord.Vec[0] = rtt.Seconds()
+	coord.Height = 0
+	return coord
+}

vendor/github.com/hashicorp/consul/main.go

@@ -0,0 +1,61 @@
+package main
+
+import (
+	"fmt"
+	"github.com/mitchellh/cli"
+	"io/ioutil"
+	"log"
+	"os"
+
+	"github.com/hashicorp/consul/lib"
+)
+
+func init() {
+	lib.SeedMathRand()
+}
+
+func main() {
+	os.Exit(realMain())
+}
+
+func realMain() int {
+	log.SetOutput(ioutil.Discard)
+
+	// Get the command line args. We shortcut "--version" and "-v" to
+	// just show the version.
+	args := os.Args[1:]
+	for _, arg := range args {
+		if arg == "--" {
+			break
+		}
+		if arg == "-v" || arg == "--version" {
+			newArgs := make([]string, len(args)+1)
+			newArgs[0] = "version"
+			copy(newArgs[1:], args)
+			args = newArgs
+			break
+		}
+	}
+
+	// Filter out the configtest command from the help display
+	var included []string
+	for command := range Commands {
+		if command != "configtest" {
+			included = append(included, command)
+		}
+	}
+
+	cli := &cli.CLI{
+		Args:     args,
+		Commands: Commands,
+		HelpFunc: cli.FilteredHelpFunc(included, cli.BasicHelpFunc("consul")),
+	}
+
+	exitCode, err := cli.Run()
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Error executing CLI: %s\n", err.Error())
+		return 1
+	}
+
+	return exitCode
+}

vendor/github.com/hashicorp/consul/make.bat

@@ -0,0 +1,82 @@
+@echo off
+
+setlocal
+
+set _EXITCODE=0
+
+set _DEPSFILE=%TEMP%\consul-deps.txt
+go list -f "{{range .TestImports}}{{.}} {{end}}" .\... >%_DEPSFILE%
+
+set _PKGSFILE=%TEMP%\consul-pkgs.txt
+go list .\... >%_PKGSFILE%
+
+set _VETARGS=-asmdecl -atomic -bool -buildtags -copylocks -methods^
+ -nilfunc -printf -rangeloops -shift -structtags -unsafeptr
+if defined VETARGS set _VETARGS=%VETARGS%
+
+:deps
+echo --^> Installing build dependencies
+for /f "delims=" %%d in (%_DEPSFILE%) do go get -d -v .\... %%d
+
+if [%1]==[] goto all
+if x%1==xdeps goto end
+goto args
+
+:args
+for %%a in (all,cover,test,vet,updatedeps) do (if x%1==x%%a goto %%a)
+echo.
+echo Unknown make target: %1
+echo Expected one of "all", "cover", "deps", "test", "vet", or "updatedeps".
+set _EXITCODE=1
+goto end
+
+:all
+md bin 2>NUL
+call .\scripts\windows\build.bat %CD%
+if not errorlevel 1 goto end
+echo.
+echo BUILD FAILED
+set _EXITCODE=%ERRORLEVEL%
+goto end
+
+:cover
+set _COVER=--cover
+go tool cover 2>NUL
+if %ERRORLEVEL% EQU 3 go get golang.org/x/tools/cmd/cover
+goto test
+
+:test
+call .\scripts\windows\verify_no_uuid.bat %CD%
+if %ERRORLEVEL% EQU 0 goto _test
+echo.
+echo UUID verification failed.
+set _EXITCODE=%ERRORLEVEL%
+goto end
+:_test
+for /f "delims=" %%p in (%_PKGSFILE%) do (
+	go test %_COVER% %%p
+	if errorlevel 1 set _TESTFAIL=1
+)
+if x%_TESTFAIL%==x1 set _EXITCODE=1 && goto end
+goto vet
+
+:vet
+go tool vet 2>NUL
+if %ERRORLEVEL% EQU 3 go get golang.org/x/tools/cmd/vet
+echo --^> Running go tool vet %_VETARGS%
+go tool vet %_VETARGS% .
+echo.
+if %ERRORLEVEL% EQU 0 echo ALL TESTS PASSED && goto end
+echo Vet found suspicious constructs. Please check the reported constructs
+echo and fix them if necessary before submitting the code for reviewal.
+set _EXITCODE=%ERRORLEVEL%
+goto end
+
+:updatedeps
+echo --^> Updating build dependencies
+for /f "delims=" %%d in (%_DEPSFILE%) do go get -d -f -u .\... %%d
+goto end
+
+:end
+del /F %_DEPSFILE% %_PKGSFILE% 2>NUL
+exit /B %_EXITCODE%

vendor/github.com/hashicorp/consul/testutil/README.md

@@ -25,41 +25,51 @@ import (
 	"github.com/hashicorp/consul/testutil"
 )
 
-func TestMain(t *testing.T) {
+func TestFoo_bar(t *testing.T) {
 	// Create a test Consul server
-	srv1 := testutil.NewTestServer(t)
+	srv1, err := testutil.NewTestServer()
+	if err != nil {
+		t.Fatal(err)
+	}
 	defer srv1.Stop()
 
 	// Create a secondary server, passing in configuration
 	// to avoid bootstrapping as we are forming a cluster.
-	srv2 := testutil.NewTestServerConfig(t, func(c *testutil.TestServerConfig) {
+	srv2, err := testutil.NewTestServerConfig(t, func(c *testutil.TestServerConfig) {
 		c.Bootstrap = false
 	})
+	if err != nil {
+		t.Fatal(err)
+	}
 	defer srv2.Stop()
 
 	// Join the servers together
-	srv1.JoinLAN(srv2.LANAddr)
+	srv1.JoinLAN(t, srv2.LANAddr)
 
 	// Create a test key/value pair
-	srv1.SetKV("foo", []byte("bar"))
+	srv1.SetKV(t, "foo", []byte("bar"))
 
 	// Create lots of test key/value pairs
-	srv1.PopulateKV(map[string][]byte{
+	srv1.PopulateKV(t, map[string][]byte{
 		"bar": []byte("123"),
 		"baz": []byte("456"),
 	})
 
 	// Create a service
-	srv1.AddService("redis", structs.HealthPassing, []string{"master"})
+	srv1.AddService(t, "redis", structs.HealthPassing, []string{"master"})
 
 	// Create a service check
-	srv1.AddCheck("service:redis", "redis", structs.HealthPassing)
+	srv1.AddCheck(t, "service:redis", "redis", structs.HealthPassing)
 
 	// Create a node check
-	srv1.AddCheck("mem", "", structs.HealthCritical)
+	srv1.AddCheck(t, "mem", "", structs.HealthCritical)
 
 	// The HTTPAddr field contains the address of the Consul
 	// API on the new test server instance.
 	println(srv1.HTTPAddr)
+
+	// All functions also have a wrapper method to limit the passing of "t"
+	wrap := srv1.Wrap(t)
+	wrap.SetKV("foo", []byte("bar"))
 }
 ```

vendor/github.com/hashicorp/consul/testutil/server.go

@@ -12,8 +12,7 @@ package testutil
 // otherwise cause an import cycle.
 
 import (
-	"bytes"
-	"encoding/base64"
+	"context"
 	"encoding/json"
 	"fmt"
 	"io"
@@ -25,8 +24,9 @@ import (
 	"strconv"
 	"strings"
 
-	"github.com/hashicorp/consul/consul/structs"
 	"github.com/hashicorp/go-cleanhttp"
+	"github.com/hashicorp/go-uuid"
+	"github.com/pkg/errors"
 )
 
 // TestPerformanceConfig configures the performance parameters.
@@ -39,10 +39,13 @@ type TestPerformanceConfig struct {
 type TestPortConfig struct {
 	DNS     int `json:"dns,omitempty"`
 	HTTP    int `json:"http,omitempty"`
-	RPC     int `json:"rpc,omitempty"`
+	HTTPS   int `json:"https,omitempty"`
 	SerfLan int `json:"serf_lan,omitempty"`
 	SerfWan int `json:"serf_wan,omitempty"`
 	Server  int `json:"server,omitempty"`
+
+	// Deprecated
+	RPC int `json:"rpc,omitempty"`
 }
 
 // TestAddressConfig contains the bind addresses for various
@@ -53,24 +56,32 @@ type TestAddressConfig struct {
 
 // TestServerConfig is the main server configuration struct.
 type TestServerConfig struct {
-	NodeName          string                 `json:"node_name"`
-	NodeMeta          map[string]string      `json:"node_meta,omitempty"`
-	Performance       *TestPerformanceConfig `json:"performance,omitempty"`
-	Bootstrap         bool                   `json:"bootstrap,omitempty"`
-	Server            bool                   `json:"server,omitempty"`
-	DataDir           string                 `json:"data_dir,omitempty"`
-	Datacenter        string                 `json:"datacenter,omitempty"`
-	DisableCheckpoint bool                   `json:"disable_update_check"`
-	LogLevel          string                 `json:"log_level,omitempty"`
-	Bind              string                 `json:"bind_addr,omitempty"`
-	Addresses         *TestAddressConfig     `json:"addresses,omitempty"`
-	Ports             *TestPortConfig        `json:"ports,omitempty"`
-	ACLMasterToken    string                 `json:"acl_master_token,omitempty"`
-	ACLDatacenter     string                 `json:"acl_datacenter,omitempty"`
-	ACLDefaultPolicy  string                 `json:"acl_default_policy,omitempty"`
-	Encrypt           string                 `json:"encrypt,omitempty"`
-	Stdout, Stderr    io.Writer              `json:"-"`
-	Args              []string               `json:"-"`
+	NodeName           string                 `json:"node_name"`
+	NodeID             string                 `json:"node_id"`
+	NodeMeta           map[string]string      `json:"node_meta,omitempty"`
+	Performance        *TestPerformanceConfig `json:"performance,omitempty"`
+	Bootstrap          bool                   `json:"bootstrap,omitempty"`
+	Server             bool                   `json:"server,omitempty"`
+	DataDir            string                 `json:"data_dir,omitempty"`
+	Datacenter         string                 `json:"datacenter,omitempty"`
+	DisableCheckpoint  bool                   `json:"disable_update_check"`
+	LogLevel           string                 `json:"log_level,omitempty"`
+	Bind               string                 `json:"bind_addr,omitempty"`
+	Addresses          *TestAddressConfig     `json:"addresses,omitempty"`
+	Ports              *TestPortConfig        `json:"ports,omitempty"`
+	RaftProtocol       int                    `json:"raft_protocol,omitempty"`
+	ACLMasterToken     string                 `json:"acl_master_token,omitempty"`
+	ACLDatacenter      string                 `json:"acl_datacenter,omitempty"`
+	ACLDefaultPolicy   string                 `json:"acl_default_policy,omitempty"`
+	ACLEnforceVersion8 bool                   `json:"acl_enforce_version_8"`
+	Encrypt            string                 `json:"encrypt,omitempty"`
+	CAFile             string                 `json:"ca_file,omitempty"`
+	CertFile           string                 `json:"cert_file,omitempty"`
+	KeyFile            string                 `json:"key_file,omitempty"`
+	VerifyIncoming     bool                   `json:"verify_incoming,omitempty"`
+	VerifyOutgoing     bool                   `json:"verify_outgoing,omitempty"`
+	Stdout, Stderr     io.Writer              `json:"-"`
+	Args               []string               `json:"-"`
 }
 
 // ServerConfigCallback is a function interface which can be
@@ -80,8 +91,14 @@ type ServerConfigCallback func(c *TestServerConfig)
 // defaultServerConfig returns a new TestServerConfig struct
 // with all of the listen ports incremented by one.
 func defaultServerConfig() *TestServerConfig {
+	nodeID, err := uuid.GenerateUUID()
+	if err != nil {
+		panic(err)
+	}
+
 	return &TestServerConfig{
 		NodeName:          fmt.Sprintf("node%d", randomPort()),
+		NodeID:            nodeID,
 		DisableCheckpoint: true,
 		Performance: &TestPerformanceConfig{
 			RaftMultiplier: 1,
@@ -94,10 +111,11 @@ func defaultServerConfig() *TestServerConfig {
 		Ports: &TestPortConfig{
 			DNS:     randomPort(),
 			HTTP:    randomPort(),
-			RPC:     randomPort(),
+			HTTPS:   randomPort(),
 			SerfLan: randomPort(),
 			SerfWan: randomPort(),
 			Server:  randomPort(),
+			RPC:     randomPort(),
 		},
 	}
 }
@@ -129,15 +147,6 @@ type TestCheck struct {
 	TTL       string `json:",omitempty"`
 }
 
-// TestingT is an interface wrapper around TestingT
-type TestingT interface {
-	Logf(format string, args ...interface{})
-	Errorf(format string, args ...interface{})
-	Fatalf(format string, args ...interface{})
-	Fatal(args ...interface{})
-	Skip(args ...interface{})
-}
-
 // TestKVResponse is what we use to decode KV data.
 type TestKVResponse struct {
 	Value string
@@ -147,38 +156,40 @@ type TestKVResponse struct {
 type TestServer struct {
 	cmd    *exec.Cmd
 	Config *TestServerConfig
-	t      TestingT
 
-	HTTPAddr string
-	LANAddr  string
-	WANAddr  string
+	HTTPAddr  string
+	HTTPSAddr string
+	LANAddr   string
+	WANAddr   string
 
 	HttpClient *http.Client
 }
 
 // NewTestServer is an easy helper method to create a new Consul
 // test server with the most basic configuration.
-func NewTestServer(t TestingT) *TestServer {
-	return NewTestServerConfig(t, nil)
+func NewTestServer() (*TestServer, error) {
+	return NewTestServerConfig(nil)
 }
 
-// NewTestServerConfig creates a new TestServer, and makes a call to
-// an optional callback function to modify the configuration.
-func NewTestServerConfig(t TestingT, cb ServerConfigCallback) *TestServer {
+// NewTestServerConfig creates a new TestServer, and makes a call to an optional
+// callback function to modify the configuration. If there is an error
+// configuring or starting the server, the server will NOT be running when the
+// function returns (thus you do not need to stop it).
+func NewTestServerConfig(cb ServerConfigCallback) (*TestServer, error) {
 	if path, err := exec.LookPath("consul"); err != nil || path == "" {
-		t.Fatal("consul not found on $PATH - download and install " +
+		return nil, fmt.Errorf("consul not found on $PATH - download and install " +
 			"consul or skip this test")
 	}
 
 	dataDir, err := ioutil.TempDir("", "consul")
 	if err != nil {
-		t.Fatalf("err: %s", err)
+		return nil, errors.Wrap(err, "failed creating tempdir")
 	}
 
 	configFile, err := ioutil.TempFile(dataDir, "config")
 	if err != nil {
 		defer os.RemoveAll(dataDir)
-		t.Fatalf("err: %s", err)
+		return nil, errors.Wrap(err, "failed creating temp config")
 	}
 
 	consulConfig := defaultServerConfig()
@@ -190,11 +201,13 @@ func NewTestServerConfig(t TestingT, cb ServerConfigCallback) *TestServer {
 
 	configContent, err := json.Marshal(consulConfig)
 	if err != nil {
-		t.Fatalf("err: %s", err)
+		return nil, errors.Wrap(err, "failed marshaling json")
 	}
 
 	if _, err := configFile.Write(configContent); err != nil {
-		t.Fatalf("err: %s", err)
+		defer configFile.Close()
+		defer os.RemoveAll(dataDir)
+		return nil, errors.Wrap(err, "failed writing config content")
 	}
 	configFile.Close()
 
@@ -215,7 +228,7 @@ func NewTestServerConfig(t TestingT, cb ServerConfigCallback) *TestServer {
 	cmd.Stdout = stdout
 	cmd.Stderr = stderr
 	if err := cmd.Start(); err != nil {
-		t.Fatalf("err: %s", err)
+		return nil, errors.Wrap(err, "failed starting command")
 	}
 
 	var httpAddr string
@@ -223,7 +236,7 @@ func NewTestServerConfig(t TestingT, cb ServerConfigCallback) *TestServer {
 	if strings.HasPrefix(consulConfig.Addresses.HTTP, "unix://") {
 		httpAddr = consulConfig.Addresses.HTTP
 		trans := cleanhttp.DefaultTransport()
-		trans.Dial = func(_, _ string) (net.Conn, error) {
+		trans.DialContext = func(_ context.Context, _, _ string) (net.Conn, error) {
 			return net.Dial("unix", httpAddr[7:])
 		}
 		client = &http.Client{
@@ -237,75 +250,87 @@ func NewTestServerConfig(t TestingT, cb ServerConfigCallback) *TestServer {
 	server := &TestServer{
 		Config: consulConfig,
 		cmd:    cmd,
-		t:      t,
 
-		HTTPAddr: httpAddr,
-		LANAddr:  fmt.Sprintf("127.0.0.1:%d", consulConfig.Ports.SerfLan),
-		WANAddr:  fmt.Sprintf("127.0.0.1:%d", consulConfig.Ports.SerfWan),
+		HTTPAddr:  httpAddr,
+		HTTPSAddr: fmt.Sprintf("127.0.0.1:%d", consulConfig.Ports.HTTPS),
+		LANAddr:   fmt.Sprintf("127.0.0.1:%d", consulConfig.Ports.SerfLan),
+		WANAddr:   fmt.Sprintf("127.0.0.1:%d", consulConfig.Ports.SerfWan),
 
 		HttpClient: client,
 	}
 
 	// Wait for the server to be ready
+	var startErr error
 	if consulConfig.Bootstrap {
-		server.waitForLeader()
+		startErr = server.waitForLeader()
 	} else {
-		server.waitForAPI()
+		startErr = server.waitForAPI()
+	}
+	if startErr != nil {
+		defer server.Stop()
+		return nil, errors.Wrap(startErr, "failed waiting for server to start")
 	}
 
-	return server
+	return server, nil
 }
 
 // Stop stops the test Consul server, and removes the Consul data
 // directory once we are done.
-func (s *TestServer) Stop() {
+func (s *TestServer) Stop() error {
 	defer os.RemoveAll(s.Config.DataDir)
 
-	if err := s.cmd.Process.Kill(); err != nil {
-		s.t.Errorf("err: %s", err)
+	if s.cmd != nil {
+		if s.cmd.Process != nil {
+			if err := s.cmd.Process.Kill(); err != nil {
+				return errors.Wrap(err, "failed to kill consul server")
+			}
+		}
+
+		// wait for the process to exit to be sure that the data dir can be
+		// deleted on all platforms.
+		return s.cmd.Wait()
 	}
 
-	// wait for the process to exit to be sure that the data dir can be
-	// deleted on all platforms.
-	s.cmd.Wait()
+	// There was no process
+	return nil
 }
 
 // waitForAPI waits for only the agent HTTP endpoint to start
 // responding. This is an indication that the agent has started,
 // but will likely return before a leader is elected.
-func (s *TestServer) waitForAPI() {
-	WaitForResult(func() (bool, error) {
+func (s *TestServer) waitForAPI() error {
+	if err := WaitForResult(func() (bool, error) {
 		resp, err := s.HttpClient.Get(s.url("/v1/agent/self"))
 		if err != nil {
-			return false, err
+			return false, errors.Wrap(err, "failed http get")
 		}
 		defer resp.Body.Close()
 		if err := s.requireOK(resp); err != nil {
-			return false, err
+			return false, errors.Wrap(err, "failed OK response")
 		}
 		return true, nil
-	}, func(err error) {
-		defer s.Stop()
-		s.t.Fatalf("err: %s", err)
-	})
+	}); err != nil {
+		return errors.Wrap(err, "failed waiting for API")
+	}
+	return nil
 }
 
 // waitForLeader waits for the Consul server's HTTP API to become
 // available, and then waits for a known leader and an index of
 // 1 or more to be observed to confirm leader election is done.
 // It then waits to ensure the anti-entropy sync has completed.
-func (s *TestServer) waitForLeader() {
+func (s *TestServer) waitForLeader() error {
 	var index int64
-	WaitForResult(func() (bool, error) {
+	if err := WaitForResult(func() (bool, error) {
 		// Query the API and check the status code.
-		url := s.url(fmt.Sprintf("/v1/catalog/nodes?index=%d&wait=10s", index))
+		url := s.url(fmt.Sprintf("/v1/catalog/nodes?index=%d&wait=2s", index))
 		resp, err := s.HttpClient.Get(url)
 		if err != nil {
-			return false, err
+			return false, errors.Wrap(err, "failed http get")
 		}
 		defer resp.Body.Close()
 		if err := s.requireOK(resp); err != nil {
-			return false, err
+			return false, errors.Wrap(err, "failed OK response")
 		}
 
 		// Ensure we have a leader and a node registration.
@@ -314,10 +339,10 @@ func (s *TestServer) waitForLeader() {
 		}
 		index, err = strconv.ParseInt(resp.Header.Get("X-Consul-Index"), 10, 64)
 		if err != nil {
-			return false, fmt.Errorf("Consul index was bad: %v", err)
+			return false, errors.Wrap(err, "bad consul index")
 		}
 		if index == 0 {
-			return false, fmt.Errorf("Consul index is 0")
+			return false, fmt.Errorf("consul index is 0")
 		}
 
 		// Watch for the anti-entropy sync to finish.
@@ -337,192 +362,8 @@ func (s *TestServer) waitForLeader() {
 			return false, fmt.Errorf("No lan tagged addresses")
 		}
 		return true, nil
-	}, func(err error) {
-		defer s.Stop()
-		s.t.Fatalf("err: %s", err)
-	})
-}
-
-// url is a helper function which takes a relative URL and
-// makes it into a proper URL against the local Consul server.
-func (s *TestServer) url(path string) string {
-	return fmt.Sprintf("http://127.0.0.1:%d%s", s.Config.Ports.HTTP, path)
-}
-
-// requireOK checks the HTTP response code and ensures it is acceptable.
-func (s *TestServer) requireOK(resp *http.Response) error {
-	if resp.StatusCode != 200 {
-		return fmt.Errorf("Bad status code: %d", resp.StatusCode)
+	}); err != nil {
+		return errors.Wrap(err, "failed waiting for leader")
 	}
 	return nil
 }
-
-// put performs a new HTTP PUT request.
-func (s *TestServer) put(path string, body io.Reader) *http.Response {
-	req, err := http.NewRequest("PUT", s.url(path), body)
-	if err != nil {
-		s.t.Fatalf("err: %s", err)
-	}
-	resp, err := s.HttpClient.Do(req)
-	if err != nil {
-		s.t.Fatalf("err: %s", err)
-	}
-	if err := s.requireOK(resp); err != nil {
-		defer resp.Body.Close()
-		s.t.Fatal(err)
-	}
-	return resp
-}
-
-// get performs a new HTTP GET request.
-func (s *TestServer) get(path string) *http.Response {
-	resp, err := s.HttpClient.Get(s.url(path))
-	if err != nil {
-		s.t.Fatalf("err: %s", err)
-	}
-	if err := s.requireOK(resp); err != nil {
-		defer resp.Body.Close()
-		s.t.Fatal(err)
-	}
-	return resp
-}
-
-// encodePayload returns a new io.Reader wrapping the encoded contents
-// of the payload, suitable for passing directly to a new request.
-func (s *TestServer) encodePayload(payload interface{}) io.Reader {
-	var encoded bytes.Buffer
-	enc := json.NewEncoder(&encoded)
-	if err := enc.Encode(payload); err != nil {
-		s.t.Fatalf("err: %s", err)
-	}
-	return &encoded
-}
-
-// JoinLAN is used to join nodes within the same datacenter.
-func (s *TestServer) JoinLAN(addr string) {
-	resp := s.get("/v1/agent/join/" + addr)
-	resp.Body.Close()
-}
-
-// JoinWAN is used to join remote datacenters together.
-func (s *TestServer) JoinWAN(addr string) {
-	resp := s.get("/v1/agent/join/" + addr + "?wan=1")
-	resp.Body.Close()
-}
-
-// SetKV sets an individual key in the K/V store.
-func (s *TestServer) SetKV(key string, val []byte) {
-	resp := s.put("/v1/kv/"+key, bytes.NewBuffer(val))
-	resp.Body.Close()
-}
-
-// GetKV retrieves a single key and returns its value
-func (s *TestServer) GetKV(key string) []byte {
-	resp := s.get("/v1/kv/" + key)
-	defer resp.Body.Close()
-
-	raw, err := ioutil.ReadAll(resp.Body)
-	if err != nil {
-		s.t.Fatalf("err: %s", err)
-	}
-
-	var result []*TestKVResponse
-	if err := json.Unmarshal(raw, &result); err != nil {
-		s.t.Fatalf("err: %s", err)
-	}
-	if len(result) < 1 {
-		s.t.Fatalf("key does not exist: %s", key)
-	}
-
-	v, err := base64.StdEncoding.DecodeString(result[0].Value)
-	if err != nil {
-		s.t.Fatalf("err: %s", err)
-	}
-
-	return v
-}
-
-// PopulateKV fills the Consul KV with data from a generic map.
-func (s *TestServer) PopulateKV(data map[string][]byte) {
-	for k, v := range data {
-		s.SetKV(k, v)
-	}
-}
-
-// ListKV returns a list of keys present in the KV store. This will list all
-// keys under the given prefix recursively and return them as a slice.
-func (s *TestServer) ListKV(prefix string) []string {
-	resp := s.get("/v1/kv/" + prefix + "?keys")
-	defer resp.Body.Close()
-
-	raw, err := ioutil.ReadAll(resp.Body)
-	if err != nil {
-		s.t.Fatalf("err: %s", err)
-	}
-
-	var result []string
-	if err := json.Unmarshal(raw, &result); err != nil {
-		s.t.Fatalf("err: %s", err)
-	}
-	return result
-}
-
-// AddService adds a new service to the Consul instance. It also
-// automatically adds a health check with the given status, which
-// can be one of "passing", "warning", or "critical".
-func (s *TestServer) AddService(name, status string, tags []string) {
-	svc := &TestService{
-		Name: name,
-		Tags: tags,
-	}
-	payload := s.encodePayload(svc)
-	s.put("/v1/agent/service/register", payload)
-
-	chkName := "service:" + name
-	chk := &TestCheck{
-		Name:      chkName,
-		ServiceID: name,
-		TTL:       "10m",
-	}
-	payload = s.encodePayload(chk)
-	s.put("/v1/agent/check/register", payload)
-
-	switch status {
-	case structs.HealthPassing:
-		s.put("/v1/agent/check/pass/"+chkName, nil)
-	case structs.HealthWarning:
-		s.put("/v1/agent/check/warn/"+chkName, nil)
-	case structs.HealthCritical:
-		s.put("/v1/agent/check/fail/"+chkName, nil)
-	default:
-		s.t.Fatalf("Unrecognized status: %s", status)
-	}
-}
-
-// AddCheck adds a check to the Consul instance. If the serviceID is
-// left empty (""), then the check will be associated with the node.
-// The check status may be "passing", "warning", or "critical".
-func (s *TestServer) AddCheck(name, serviceID, status string) {
-	chk := &TestCheck{
-		ID:   name,
-		Name: name,
-		TTL:  "10m",
-	}
-	if serviceID != "" {
-		chk.ServiceID = serviceID
-	}
-
-	payload := s.encodePayload(chk)
-	s.put("/v1/agent/check/register", payload)
-
-	switch status {
-	case structs.HealthPassing:
-		s.put("/v1/agent/check/pass/"+name, nil)
-	case structs.HealthWarning:
-		s.put("/v1/agent/check/warn/"+name, nil)
-	case structs.HealthCritical:
-		s.put("/v1/agent/check/fail/"+name, nil)
-	default:
-		s.t.Fatalf("Unrecognized status: %s", status)
-	}
-}

vendor/github.com/hashicorp/consul/testutil/server_methods.go

@@ -0,0 +1,237 @@
+package testutil
+
+import (
+	"bytes"
+	"encoding/base64"
+	"encoding/json"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"log"
+	"net/http"
+	"testing"
+
+	"github.com/hashicorp/consul/consul/structs"
+	"github.com/pkg/errors"
+)
+
+// JoinLAN is used to join local datacenters together.
+func (s *TestServer) JoinLAN(t *testing.T, addr string) {
+	resp := s.get(t, "/v1/agent/join/"+addr)
+	defer resp.Body.Close()
+}
+
+// JoinWAN is used to join remote datacenters together.
+func (s *TestServer) JoinWAN(t *testing.T, addr string) {
+	resp := s.get(t, "/v1/agent/join/"+addr+"?wan=1")
+	resp.Body.Close()
+}
+
+// SetKV sets an individual key in the K/V store.
+func (s *TestServer) SetKV(t *testing.T, key string, val []byte) {
+	resp := s.put(t, "/v1/kv/"+key, bytes.NewBuffer(val))
+	resp.Body.Close()
+}
+
+// SetKVString sets an individual key in the K/V store, but accepts a string
+// instead of []byte.
+func (s *TestServer) SetKVString(t *testing.T, key string, val string) {
+	resp := s.put(t, "/v1/kv/"+key, bytes.NewBufferString(val))
+	resp.Body.Close()
+}
+
+// GetKV retrieves a single key and returns its value
+func (s *TestServer) GetKV(t *testing.T, key string) []byte {
+	resp := s.get(t, "/v1/kv/"+key)
+	defer resp.Body.Close()
+
+	raw, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		t.Fatalf("failed to read body: %s", err)
+	}
+
+	var result []*TestKVResponse
+	if err := json.Unmarshal(raw, &result); err != nil {
+		t.Fatalf("failed to unmarshal: %s", err)
+	}
+	if len(result) < 1 {
+		t.Fatalf("key does not exist: %s", key)
+	}
+
+	v, err := base64.StdEncoding.DecodeString(result[0].Value)
+	if err != nil {
+		t.Fatalf("failed to base64 decode: %s", err)
+	}
+
+	return v
+}
+
+// GetKVString retrieves a value from the store, but returns as a string instead
+// of []byte.
+func (s *TestServer) GetKVString(t *testing.T, key string) string {
+	return string(s.GetKV(t, key))
+}
+
+// PopulateKV fills the Consul KV with data from a generic map.
+func (s *TestServer) PopulateKV(t *testing.T, data map[string][]byte) {
+	for k, v := range data {
+		s.SetKV(t, k, v)
+	}
+}
+
+// ListKV returns a list of keys present in the KV store. This will list all
+// keys under the given prefix recursively and return them as a slice.
+func (s *TestServer) ListKV(t *testing.T, prefix string) []string {
+	resp := s.get(t, "/v1/kv/"+prefix+"?keys")
+	defer resp.Body.Close()
+
+	raw, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		t.Fatalf("failed to read body: %s", err)
+	}
+
+	var result []string
+	if err := json.Unmarshal(raw, &result); err != nil {
+		t.Fatalf("failed to unmarshal: %s", err)
+	}
+	return result
+}
+
+// AddService adds a new service to the Consul instance. It also
+// automatically adds a health check with the given status, which
+// can be one of "passing", "warning", or "critical".
+func (s *TestServer) AddService(t *testing.T, name, status string, tags []string) {
+	svc := &TestService{
+		Name: name,
+		Tags: tags,
+	}
+	payload, err := s.encodePayload(svc)
+	if err != nil {
+		t.Fatal(err)
+	}
+	s.put(t, "/v1/agent/service/register", payload)
+
+	chkName := "service:" + name
+	chk := &TestCheck{
+		Name:      chkName,
+		ServiceID: name,
+		TTL:       "10m",
+	}
+	payload, err = s.encodePayload(chk)
+	if err != nil {
+		t.Fatal(err)
+	}
+	s.put(t, "/v1/agent/check/register", payload)
+
+	switch status {
+	case structs.HealthPassing:
+		s.put(t, "/v1/agent/check/pass/"+chkName, nil)
+	case structs.HealthWarning:
+		s.put(t, "/v1/agent/check/warn/"+chkName, nil)
+	case structs.HealthCritical:
+		s.put(t, "/v1/agent/check/fail/"+chkName, nil)
+	default:
+		t.Fatalf("Unrecognized status: %s", status)
+	}
+}
+
+// AddCheck adds a check to the Consul instance. If the serviceID is
+// left empty (""), then the check will be associated with the node.
+// The check status may be "passing", "warning", or "critical".
+func (s *TestServer) AddCheck(t *testing.T, name, serviceID, status string) {
+	chk := &TestCheck{
+		ID:   name,
+		Name: name,
+		TTL:  "10m",
+	}
+	if serviceID != "" {
+		chk.ServiceID = serviceID
+	}
+
+	payload, err := s.encodePayload(chk)
+	if err != nil {
+		t.Fatal(err)
+	}
+	s.put(t, "/v1/agent/check/register", payload)
+
+	switch status {
+	case structs.HealthPassing:
+		s.put(t, "/v1/agent/check/pass/"+name, nil)
+	case structs.HealthWarning:
+		s.put(t, "/v1/agent/check/warn/"+name, nil)
+	case structs.HealthCritical:
+		s.put(t, "/v1/agent/check/fail/"+name, nil)
+	default:
+		t.Fatalf("Unrecognized status: %s", status)
+	}
+}
+
+// put performs a new HTTP PUT request.
+func (s *TestServer) put(t *testing.T, path string, body io.Reader) *http.Response {
+	req, err := http.NewRequest("PUT", s.url(path), body)
+	if err != nil {
+		t.Fatalf("failed to create PUT request: %s", err)
+	}
+	resp, err := s.HttpClient.Do(req)
+	if err != nil {
+		t.Fatalf("failed to make PUT request: %s", err)
+	}
+	if err := s.requireOK(resp); err != nil {
+		defer resp.Body.Close()
+		t.Fatalf("not OK PUT: %s", err)
+	}
+	return resp
+}
+
+// get performs a new HTTP GET request.
+func (s *TestServer) get(t *testing.T, path string) *http.Response {
+	resp, err := s.HttpClient.Get(s.url(path))
+	if err != nil {
+		t.Fatalf("failed to create GET request: %s", err)
+	}
+	if err := s.requireOK(resp); err != nil {
+		defer resp.Body.Close()
+		t.Fatalf("not OK GET: %s", err)
+	}
+	return resp
+}
+
+// encodePayload returns a new io.Reader wrapping the encoded contents
+// of the payload, suitable for passing directly to a new request.
+func (s *TestServer) encodePayload(payload interface{}) (io.Reader, error) {
+	var encoded bytes.Buffer
+	enc := json.NewEncoder(&encoded)
+	if err := enc.Encode(payload); err != nil {
+		return nil, errors.Wrap(err, "failed to encode payload")
+	}
+	return &encoded, nil
+}
+
+// url is a helper function which takes a relative URL and
+// makes it into a proper URL against the local Consul server.
+func (s *TestServer) url(path string) string {
+	if s == nil {
+		log.Fatal("s is nil")
+	}
+	if s.Config == nil {
+		log.Fatal("s.Config is nil")
+	}
+	if s.Config.Ports == nil {
+		log.Fatal("s.Config.Ports is nil")
+	}
+	if s.Config.Ports.HTTP == 0 {
+		log.Fatal("s.Config.Ports.HTTP is 0")
+	}
+	if path == "" {
+		log.Fatal("path is empty")
+	}
+	return fmt.Sprintf("http://127.0.0.1:%d%s", s.Config.Ports.HTTP, path)
+}
+
+// requireOK checks the HTTP response code and ensures it is acceptable.
+func (s *TestServer) requireOK(resp *http.Response) error {
+	if resp.StatusCode != 200 {
+		return fmt.Errorf("Bad status code: %d", resp.StatusCode)
+	}
+	return nil
+}

vendor/github.com/hashicorp/consul/testutil/server_wrapper.go

@@ -0,0 +1,96 @@
+package testutil
+
+import (
+	"testing"
+)
+
+type WrappedServer struct {
+	s *TestServer
+	t *testing.T
+}
+
+// Wrap wraps the test server in a `testing.t` for convenience.
+//
+// For example, the following code snippets are equivalent.
+//
+//   server.JoinLAN(t, "1.2.3.4")
+//   server.Wrap(t).JoinLAN("1.2.3.4")
+//
+// This is useful when you are calling multiple functions and save the wrapped
+// value as another variable to reduce the inclusion of "t".
+func (s *TestServer) Wrap(t *testing.T) *WrappedServer {
+	return &WrappedServer{
+		s: s,
+		t: t,
+	}
+}
+
+// See Also
+//
+// TestServer.JoinLAN()
+func (w *WrappedServer) JoinLAN(addr string) {
+	w.s.JoinLAN(w.t, addr)
+}
+
+// See Also
+//
+// TestServer.JoinWAN()
+func (w *WrappedServer) JoinWAN(addr string) {
+	w.s.JoinWAN(w.t, addr)
+}
+
+// See Also
+//
+// TestServer.SetKV()
+func (w *WrappedServer) SetKV(key string, val []byte) {
+	w.s.SetKV(w.t, key, val)
+}
+
+// See Also
+//
+// TestServer.SetKVString()
+func (w *WrappedServer) SetKVString(key string, val string) {
+	w.s.SetKVString(w.t, key, val)
+}
+
+// See Also
+//
+// TestServer.GetKV()
+func (w *WrappedServer) GetKV(key string) []byte {
+	return w.s.GetKV(w.t, key)
+}
+
+// See Also
+//
+// TestServer.GetKVString()
+func (w *WrappedServer) GetKVString(key string) string {
+	return w.s.GetKVString(w.t, key)
+}
+
+// See Also
+//
+// TestServer.PopulateKV()
+func (w *WrappedServer) PopulateKV(data map[string][]byte) {
+	w.s.PopulateKV(w.t, data)
+}
+
+// See Also
+//
+// TestServer.ListKV()
+func (w *WrappedServer) ListKV(prefix string) []string {
+	return w.s.ListKV(w.t, prefix)
+}
+
+// See Also
+//
+// TestServer.AddService()
+func (w *WrappedServer) AddService(name, status string, tags []string) {
+	w.s.AddService(w.t, name, status, tags)
+}
+
+// See Also
+//
+// TestServer.AddCheck()
+func (w *WrappedServer) AddCheck(name, serviceID, status string) {
+	w.s.AddCheck(w.t, name, serviceID, status)
+}

vendor/github.com/hashicorp/consul/testutil/wait.go

@@ -6,17 +6,17 @@ import (
 	"time"
 
 	"github.com/hashicorp/consul/consul/structs"
+	"github.com/pkg/errors"
 )
 
 type testFn func() (bool, error)
-type errorFn func(error)
 
 const (
 	baseWait = 1 * time.Millisecond
 	maxWait  = 100 * time.Millisecond
 )
 
-func WaitForResult(try testFn, fail errorFn) {
+func WaitForResult(try testFn) error {
 	var err error
 	wait := baseWait
 	for retries := 100; retries > 0; retries-- {
@@ -24,7 +24,7 @@ func WaitForResult(try testFn, fail errorFn) {
 		success, err = try()
 		if success {
 			time.Sleep(25 * time.Millisecond)
-			return
+			return nil
 		}
 
 		time.Sleep(wait)
@@ -33,14 +33,18 @@ func WaitForResult(try testFn, fail errorFn) {
 			wait = maxWait
 		}
 	}
-	fail(err)
+	if err != nil {
+		return errors.Wrap(err, "timed out with error")
+	} else {
+		return fmt.Errorf("timed out")
+	}
 }
 
 type rpcFn func(string, interface{}, interface{}) error
 
 func WaitForLeader(t *testing.T, rpc rpcFn, dc string) structs.IndexedNodes {
 	var out structs.IndexedNodes
-	WaitForResult(func() (bool, error) {
+	if err := WaitForResult(func() (bool, error) {
 		// Ensure we have a leader and a node registration.
 		args := &structs.DCSpecificRequest{
 			Datacenter: dc,
@@ -55,8 +59,8 @@ func WaitForLeader(t *testing.T, rpc rpcFn, dc string) structs.IndexedNodes {
 			return false, fmt.Errorf("Consul index is 0")
 		}
 		return true, nil
-	}, func(err error) {
+	}); err != nil {
 		t.Fatalf("failed to find leader: %v", err)
-	})
+	}
 	return out
 }

vendor/github.com/hashicorp/consul/types/area.go

@@ -0,0 +1,9 @@
+package types
+
+// AreaID is a strongly-typed string used to uniquely represent a network area,
+// which is a relationship between Consul servers.
+type AreaID string
+
+// This represents the existing WAN area that's built in to Consul. Consul
+// Enterprise generalizes areas, which are represented with UUIDs.
+const AreaWAN AreaID = "wan"

vendor/github.com/hashicorp/go-uuid/LICENSE

@@ -0,0 +1,363 @@
+Mozilla Public License, version 2.0
+
+1. Definitions
+
+1.1. "Contributor"
+
+     means each individual or legal entity that creates, contributes to the
+     creation of, or owns Covered Software.
+
+1.2. "Contributor Version"
+
+     means the combination of the Contributions of others (if any) used by a
+     Contributor and that particular Contributor's Contribution.
+
+1.3. "Contribution"
+
+     means Covered Software of a particular Contributor.
+
+1.4. "Covered Software"
+
+     means Source Code Form to which the initial Contributor has attached the
+     notice in Exhibit A, the Executable Form of such Source Code Form, and
+     Modifications of such Source Code Form, in each case including portions
+     thereof.
+
+1.5. "Incompatible With Secondary Licenses"
+     means
+
+     a. that the initial Contributor has attached the notice described in
+        Exhibit B to the Covered Software; or
+
+     b. that the Covered Software was made available under the terms of
+        version 1.1 or earlier of the License, but not also under the terms of
+        a Secondary License.
+
+1.6. "Executable Form"
+
+     means any form of the work other than Source Code Form.
+
+1.7. "Larger Work"
+
+     means a work that combines Covered Software with other material, in a
+     separate file or files, that is not Covered Software.
+
+1.8. "License"
+
+     means this document.
+
+1.9. "Licensable"
+
+     means having the right to grant, to the maximum extent possible, whether
+     at the time of the initial grant or subsequently, any and all of the
+     rights conveyed by this License.
+
+1.10. "Modifications"
+
+     means any of the following:
+
+     a. any file in Source Code Form that results from an addition to,
+        deletion from, or modification of the contents of Covered Software; or
+
+     b. any new file in Source Code Form that contains any Covered Software.
+
+1.11. "Patent Claims" of a Contributor
+
+      means any patent claim(s), including without limitation, method,
+      process, and apparatus claims, in any patent Licensable by such
+      Contributor that would be infringed, but for the grant of the License,
+      by the making, using, selling, offering for sale, having made, import,
+      or transfer of either its Contributions or its Contributor Version.
+
+1.12. "Secondary License"
+
+      means either the GNU General Public License, Version 2.0, the GNU Lesser
+      General Public License, Version 2.1, the GNU Affero General Public
+      License, Version 3.0, or any later versions of those licenses.
+
+1.13. "Source Code Form"
+
+      means the form of the work preferred for making modifications.
+
+1.14. "You" (or "Your")
+
+      means an individual or a legal entity exercising rights under this
+      License. For legal entities, "You" includes any entity that controls, is
+      controlled by, or is under common control with You. For purposes of this
+      definition, "control" means (a) the power, direct or indirect, to cause
+      the direction or management of such entity, whether by contract or
+      otherwise, or (b) ownership of more than fifty percent (50%) of the
+      outstanding shares or beneficial ownership of such entity.
+
+
+2. License Grants and Conditions
+
+2.1. Grants
+
+     Each Contributor hereby grants You a world-wide, royalty-free,
+     non-exclusive license:
+
+     a. under intellectual property rights (other than patent or trademark)
+        Licensable by such Contributor to use, reproduce, make available,
+        modify, display, perform, distribute, and otherwise exploit its
+        Contributions, either on an unmodified basis, with Modifications, or
+        as part of a Larger Work; and
+
+     b. under Patent Claims of such Contributor to make, use, sell, offer for
+        sale, have made, import, and otherwise transfer either its
+        Contributions or its Contributor Version.
+
+2.2. Effective Date
+
+     The licenses granted in Section 2.1 with respect to any Contribution
+     become effective for each Contribution on the date the Contributor first
+     distributes such Contribution.
+
+2.3. Limitations on Grant Scope
+
+     The licenses granted in this Section 2 are the only rights granted under
+     this License. No additional rights or licenses will be implied from the
+     distribution or licensing of Covered Software under this License.
+     Notwithstanding Section 2.1(b) above, no patent license is granted by a
+     Contributor:
+
+     a. for any code that a Contributor has removed from Covered Software; or
+
+     b. for infringements caused by: (i) Your and any other third party's
+        modifications of Covered Software, or (ii) the combination of its
+        Contributions with other software (except as part of its Contributor
+        Version); or
+
+     c. under Patent Claims infringed by Covered Software in the absence of
+        its Contributions.
+
+     This License does not grant any rights in the trademarks, service marks,
+     or logos of any Contributor (except as may be necessary to comply with
+     the notice requirements in Section 3.4).
+
+2.4. Subsequent Licenses
+
+     No Contributor makes additional grants as a result of Your choice to
+     distribute the Covered Software under a subsequent version of this
+     License (see Section 10.2) or under the terms of a Secondary License (if
+     permitted under the terms of Section 3.3).
+
+2.5. Representation
+
+     Each Contributor represents that the Contributor believes its
+     Contributions are its original creation(s) or it has sufficient rights to
+     grant the rights to its Contributions conveyed by this License.
+
+2.6. Fair Use
+
+     This License is not intended to limit any rights You have under
+     applicable copyright doctrines of fair use, fair dealing, or other
+     equivalents.
+
+2.7. Conditions
+
+     Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted in
+     Section 2.1.
+
+
+3. Responsibilities
+
+3.1. Distribution of Source Form
+
+     All distribution of Covered Software in Source Code Form, including any
+     Modifications that You create or to which You contribute, must be under
+     the terms of this License. You must inform recipients that the Source
+     Code Form of the Covered Software is governed by the terms of this
+     License, and how they can obtain a copy of this License. You may not
+     attempt to alter or restrict the recipients' rights in the Source Code
+     Form.
+
+3.2. Distribution of Executable Form
+
+     If You distribute Covered Software in Executable Form then:
+
+     a. such Covered Software must also be made available in Source Code Form,
+        as described in Section 3.1, and You must inform recipients of the
+        Executable Form how they can obtain a copy of such Source Code Form by
+        reasonable means in a timely manner, at a charge no more than the cost
+        of distribution to the recipient; and
+
+     b. You may distribute such Executable Form under the terms of this
+        License, or sublicense it under different terms, provided that the
+        license for the Executable Form does not attempt to limit or alter the
+        recipients' rights in the Source Code Form under this License.
+
+3.3. Distribution of a Larger Work
+
+     You may create and distribute a Larger Work under terms of Your choice,
+     provided that You also comply with the requirements of this License for
+     the Covered Software. If the Larger Work is a combination of Covered
+     Software with a work governed by one or more Secondary Licenses, and the
+     Covered Software is not Incompatible With Secondary Licenses, this
+     License permits You to additionally distribute such Covered Software
+     under the terms of such Secondary License(s), so that the recipient of
+     the Larger Work may, at their option, further distribute the Covered
+     Software under the terms of either this License or such Secondary
+     License(s).
+
+3.4. Notices
+
+     You may not remove or alter the substance of any license notices
+     (including copyright notices, patent notices, disclaimers of warranty, or
+     limitations of liability) contained within the Source Code Form of the
+     Covered Software, except that You may alter any license notices to the
+     extent required to remedy known factual inaccuracies.
+
+3.5. Application of Additional Terms
+
+     You may choose to offer, and to charge a fee for, warranty, support,
+     indemnity or liability obligations to one or more recipients of Covered
+     Software. However, You may do so only on Your own behalf, and not on
+     behalf of any Contributor. You must make it absolutely clear that any
+     such warranty, support, indemnity, or liability obligation is offered by
+     You alone, and You hereby agree to indemnify every Contributor for any
+     liability incurred by such Contributor as a result of warranty, support,
+     indemnity or liability terms You offer. You may include additional
+     disclaimers of warranty and limitations of liability specific to any
+     jurisdiction.
+
+4. Inability to Comply Due to Statute or Regulation
+
+   If it is impossible for You to comply with any of the terms of this License
+   with respect to some or all of the Covered Software due to statute,
+   judicial order, or regulation then You must: (a) comply with the terms of
+   this License to the maximum extent possible; and (b) describe the
+   limitations and the code they affect. Such description must be placed in a
+   text file included with all distributions of the Covered Software under
+   this License. Except to the extent prohibited by statute or regulation,
+   such description must be sufficiently detailed for a recipient of ordinary
+   skill to be able to understand it.
+
+5. Termination
+
+5.1. The rights granted under this License will terminate automatically if You
+     fail to comply with any of its terms. However, if You become compliant,
+     then the rights granted under this License from a particular Contributor
+     are reinstated (a) provisionally, unless and until such Contributor
+     explicitly and finally terminates Your grants, and (b) on an ongoing
+     basis, if such Contributor fails to notify You of the non-compliance by
+     some reasonable means prior to 60 days after You have come back into
+     compliance. Moreover, Your grants from a particular Contributor are
+     reinstated on an ongoing basis if such Contributor notifies You of the
+     non-compliance by some reasonable means, this is the first time You have
+     received notice of non-compliance with this License from such
+     Contributor, and You become compliant prior to 30 days after Your receipt
+     of the notice.
+
+5.2. If You initiate litigation against any entity by asserting a patent
+     infringement claim (excluding declaratory judgment actions,
+     counter-claims, and cross-claims) alleging that a Contributor Version
+     directly or indirectly infringes any patent, then the rights granted to
+     You by any and all Contributors for the Covered Software under Section
+     2.1 of this License shall terminate.
+
+5.3. In the event of termination under Sections 5.1 or 5.2 above, all end user
+     license agreements (excluding distributors and resellers) which have been
+     validly granted by You or Your distributors under this License prior to
+     termination shall survive termination.
+
+6. Disclaimer of Warranty
+
+   Covered Software is provided under this License on an "as is" basis,
+   without warranty of any kind, either expressed, implied, or statutory,
+   including, without limitation, warranties that the Covered Software is free
+   of defects, merchantable, fit for a particular purpose or non-infringing.
+   The entire risk as to the quality and performance of the Covered Software
+   is with You. Should any Covered Software prove defective in any respect,
+   You (not any Contributor) assume the cost of any necessary servicing,
+   repair, or correction. This disclaimer of warranty constitutes an essential
+   part of this License. No use of  any Covered Software is authorized under
+   this License except under this disclaimer.
+
+7. Limitation of Liability
+
+   Under no circumstances and under no legal theory, whether tort (including
+   negligence), contract, or otherwise, shall any Contributor, or anyone who
+   distributes Covered Software as permitted above, be liable to You for any
+   direct, indirect, special, incidental, or consequential damages of any
+   character including, without limitation, damages for lost profits, loss of
+   goodwill, work stoppage, computer failure or malfunction, or any and all
+   other commercial damages or losses, even if such party shall have been
+   informed of the possibility of such damages. This limitation of liability
+   shall not apply to liability for death or personal injury resulting from
+   such party's negligence to the extent applicable law prohibits such
+   limitation. Some jurisdictions do not allow the exclusion or limitation of
+   incidental or consequential damages, so this exclusion and limitation may
+   not apply to You.
+
+8. Litigation
+
+   Any litigation relating to this License may be brought only in the courts
+   of a jurisdiction where the defendant maintains its principal place of
+   business and such litigation shall be governed by laws of that
+   jurisdiction, without reference to its conflict-of-law provisions. Nothing
+   in this Section shall prevent a party's ability to bring cross-claims or
+   counter-claims.
+
+9. Miscellaneous
+
+   This License represents the complete agreement concerning the subject
+   matter hereof. If any provision of this License is held to be
+   unenforceable, such provision shall be reformed only to the extent
+   necessary to make it enforceable. Any law or regulation which provides that
+   the language of a contract shall be construed against the drafter shall not
+   be used to construe this License against a Contributor.
+
+
+10. Versions of the License
+
+10.1. New Versions
+
+      Mozilla Foundation is the license steward. Except as provided in Section
+      10.3, no one other than the license steward has the right to modify or
+      publish new versions of this License. Each version will be given a
+      distinguishing version number.
+
+10.2. Effect of New Versions
+
+      You may distribute the Covered Software under the terms of the version
+      of the License under which You originally received the Covered Software,
+      or under the terms of any subsequent version published by the license
+      steward.
+
+10.3. Modified Versions
+
+      If you create software not governed by this License, and you want to
+      create a new license for such software, you may create and use a
+      modified version of this License if you rename the license and remove
+      any references to the name of the license steward (except to note that
+      such modified license differs from this License).
+
+10.4. Distributing Source Code Form that is Incompatible With Secondary
+      Licenses If You choose to distribute Source Code Form that is
+      Incompatible With Secondary Licenses under the terms of this version of
+      the License, the notice described in Exhibit B of this License must be
+      attached.
+
+Exhibit A - Source Code Form License Notice
+
+      This Source Code Form is subject to the
+      terms of the Mozilla Public License, v.
+      2.0. If a copy of the MPL was not
+      distributed with this file, You can
+      obtain one at
+      http://mozilla.org/MPL/2.0/.
+
+If it is not possible or desirable to put the notice in a particular file,
+then You may include the notice in a location (such as a LICENSE file in a
+relevant directory) where a recipient would be likely to look for such a
+notice.
+
+You may add additional accurate notices of copyright ownership.
+
+Exhibit B - "Incompatible With Secondary Licenses" Notice
+
+      This Source Code Form is "Incompatible
+      With Secondary Licenses", as defined by
+      the Mozilla Public License, v. 2.0.
+

vendor/github.com/hashicorp/go-uuid/README.md

@@ -0,0 +1,8 @@
+# uuid [![Build Status](https://travis-ci.org/hashicorp/go-uuid.svg?branch=master)](https://travis-ci.org/hashicorp/go-uuid)
+
+Generates UUID-format strings using high quality, purely random bytes. It can also parse UUID-format strings into their component bytes.
+
+Documentation
+=============
+
+The full documentation is available on [Godoc](http://godoc.org/github.com/hashicorp/go-uuid).

vendor/github.com/hashicorp/go-uuid/uuid.go

@@ -0,0 +1,65 @@
+package uuid
+
+import (
+	"crypto/rand"
+	"encoding/hex"
+	"fmt"
+)
+
+// GenerateRandomBytes is used to generate random bytes of given size.
+func GenerateRandomBytes(size int) ([]byte, error) {
+	buf := make([]byte, size)
+	if _, err := rand.Read(buf); err != nil {
+		return nil, fmt.Errorf("failed to read random bytes: %v", err)
+	}
+	return buf, nil
+}
+
+// GenerateUUID is used to generate a random UUID
+func GenerateUUID() (string, error) {
+	buf, err := GenerateRandomBytes(16)
+	if err != nil {
+		return "", err
+	}
+	return FormatUUID(buf)
+}
+
+func FormatUUID(buf []byte) (string, error) {
+	if len(buf) != 16 {
+		return "", fmt.Errorf("wrong length byte slice (%d)", len(buf))
+	}
+
+	return fmt.Sprintf("%08x-%04x-%04x-%04x-%12x",
+		buf[0:4],
+		buf[4:6],
+		buf[6:8],
+		buf[8:10],
+		buf[10:16]), nil
+}
+
+func ParseUUID(uuid string) ([]byte, error) {
+	if len(uuid) != 36 {
+		return nil, fmt.Errorf("uuid string is wrong length")
+	}
+
+	hyph := []byte("-")
+
+	if uuid[8] != hyph[0] ||
+		uuid[13] != hyph[0] ||
+		uuid[18] != hyph[0] ||
+		uuid[23] != hyph[0] {
+		return nil, fmt.Errorf("uuid is improperly formatted")
+	}
+
+	hexStr := uuid[0:8] + uuid[9:13] + uuid[14:18] + uuid[19:23] + uuid[24:36]
+
+	ret, err := hex.DecodeString(hexStr)
+	if err != nil {
+		return nil, err
+	}
+	if len(ret) != 16 {
+		return nil, fmt.Errorf("decoded hex is the wrong length")
+	}
+
+	return ret, nil
+}

vendor/github.com/hashicorp/go-version/.travis.yml

@@ -1,11 +0,0 @@
-language: go 
-
-go: 
-  - 1.0
-  - 1.1 
-  - 1.2
-  - 1.3
-  - 1.4
-  
-script:
-  - go test 

vendor/github.com/hashicorp/go-version/constraint.go

@@ -37,7 +37,7 @@ func init() {
 	}
 
 	ops := make([]string, 0, len(constraintOperators))
-	for k, _ := range constraintOperators {
+	for k := range constraintOperators {
 		ops = append(ops, regexp.QuoteMeta(k))
 	}
 
@@ -142,15 +142,37 @@ func constraintLessThanEqual(v, c *Version) bool {
 }
 
 func constraintPessimistic(v, c *Version) bool {
+	// If the version being checked is naturally less than the constraint, then there
+	// is no way for the version to be valid against the constraint
 	if v.LessThan(c) {
 		return false
 	}
+	// We'll use this more than once, so grab the length now so it's a little cleaner
+	// to write the later checks
+	cs := len(c.segments)
 
+	// If the version being checked has less specificity than the constraint, then there
+	// is no way for the version to be valid against the constraint
+	if cs > len(v.segments) {
+		return false
+	}
+
+	// Check the segments in the constraint against those in the version. If the version
+	// being checked, at any point, does not have the same values in each index of the
+	// constraints segments, then it cannot be valid against the constraint.
 	for i := 0; i < c.si-1; i++ {
 		if v.segments[i] != c.segments[i] {
 			return false
 		}
 	}
 
+	// Check the last part of the segment in the constraint. If the version segment at
+	// this index is less than the constraints segment at this index, then it cannot
+	// be valid against the constraint
+	if c.segments[cs-1] > v.segments[cs-1] {
+		return false
+	}
+
+	// If nothing has rejected the version by now, it's valid
 	return true
 }

vendor/github.com/hashicorp/go-version/version.go

@@ -14,8 +14,8 @@ var versionRegexp *regexp.Regexp
 
 // The raw regular expression string used for testing the validity
 // of a version.
-const VersionRegexpRaw string = `v?([0-9]+(\.[0-9]+){0,2})` +
-	`(-([0-9A-Za-z\-]+(\.[0-9A-Za-z\-]+)*))?` +
+const VersionRegexpRaw string = `v?([0-9]+(\.[0-9]+)*?)` +
+	`(-?([0-9A-Za-z\-]+(\.[0-9A-Za-z\-]+)*))?` +
 	`(\+([0-9A-Za-z\-]+(\.[0-9A-Za-z\-]+)*))?` +
 	`?`
 
@@ -23,7 +23,7 @@ const VersionRegexpRaw string = `v?([0-9]+(\.[0-9]+){0,2})` +
 type Version struct {
 	metadata string
 	pre      string
-	segments []int
+	segments []int64
 	si       int
 }
 
@@ -38,20 +38,23 @@ func NewVersion(v string) (*Version, error) {
 	if matches == nil {
 		return nil, fmt.Errorf("Malformed version: %s", v)
 	}
-
 	segmentsStr := strings.Split(matches[1], ".")
-	segments := make([]int, len(segmentsStr), 3)
+	segments := make([]int64, len(segmentsStr))
 	si := 0
 	for i, str := range segmentsStr {
-		val, err := strconv.ParseInt(str, 10, 32)
+		val, err := strconv.ParseInt(str, 10, 64)
 		if err != nil {
 			return nil, fmt.Errorf(
 				"Error parsing version: %s", err)
 		}
 
-		segments[i] = int(val)
-		si += 1
+		segments[i] = int64(val)
+		si++
 	}
+
+	// Even though we could support more than three segments, if we
+	// got less than three, pad it with 0s. This is to cover the basic
+	// default usecase of semver, which is MAJOR.MINOR.PATCH at the minimum
 	for i := len(segments); i < 3; i++ {
 		segments = append(segments, 0)
 	}
@@ -86,8 +89,8 @@ func (v *Version) Compare(other *Version) int {
 		return 0
 	}
 
-	segmentsSelf := v.Segments()
-	segmentsOther := other.Segments()
+	segmentsSelf := v.Segments64()
+	segmentsOther := other.Segments64()
 
 	// If the segments are the same, we must compare on prerelease info
 	if reflect.DeepEqual(segmentsSelf, segmentsOther) {
@@ -106,21 +109,56 @@ func (v *Version) Compare(other *Version) int {
 		return comparePrereleases(preSelf, preOther)
 	}
 
+	// Get the highest specificity (hS), or if they're equal, just use segmentSelf length
+	lenSelf := len(segmentsSelf)
+	lenOther := len(segmentsOther)
+	hS := lenSelf
+	if lenSelf < lenOther {
+		hS = lenOther
+	}
 	// Compare the segments
-	for i := 0; i < len(segmentsSelf); i++ {
+	// Because a constraint could have more/less specificity than the version it's
+	// checking, we need to account for a lopsided or jagged comparison
+	for i := 0; i < hS; i++ {
+		if i > lenSelf-1 {
+			// This means Self had the lower specificity
+			// Check to see if the remaining segments in Other are all zeros
+			if !allZero(segmentsOther[i:]) {
+				// if not, it means that Other has to be greater than Self
+				return -1
+			}
+			break
+		} else if i > lenOther-1 {
+			// this means Other had the lower specificity
+			// Check to see if the remaining segments in Self are all zeros -
+			if !allZero(segmentsSelf[i:]) {
+				//if not, it means that Self has to be greater than Other
+				return 1
+			}
+			break
+		}
 		lhs := segmentsSelf[i]
 		rhs := segmentsOther[i]
-
 		if lhs == rhs {
 			continue
 		} else if lhs < rhs {
 			return -1
-		} else {
-			return 1
 		}
+		// Otherwis, rhs was > lhs, they're not equal
+		return 1
 	}
 
-	panic("should not be reached")
+	// if we got this far, they're equal
+	return 0
+}
+
+func allZero(segs []int64) bool {
+	for _, s := range segs {
+		if s != 0 {
+			return false
+		}
+	}
+	return true
 }
 
 func comparePart(preSelf string, preOther string) int {
@@ -128,24 +166,38 @@ func comparePart(preSelf string, preOther string) int {
 		return 0
 	}
 
+	selfNumeric := true
+	_, err := strconv.ParseInt(preSelf, 10, 64)
+	if err != nil {
+		selfNumeric = false
+	}
+
+	otherNumeric := true
+	_, err = strconv.ParseInt(preOther, 10, 64)
+	if err != nil {
+		otherNumeric = false
+	}
+
 	// if a part is empty, we use the other to decide
 	if preSelf == "" {
-		_, notIsNumeric := strconv.ParseInt(preOther, 10, 64)
-		if notIsNumeric == nil {
+		if otherNumeric {
 			return -1
 		}
 		return 1
 	}
 
 	if preOther == "" {
-		_, notIsNumeric := strconv.ParseInt(preSelf, 10, 64)
-		if notIsNumeric == nil {
+		if selfNumeric {
 			return 1
 		}
 		return -1
 	}
 
-	if preSelf > preOther {
+	if selfNumeric && !otherNumeric {
+		return -1
+	} else if !selfNumeric && otherNumeric {
+		return 1
+	} else if preSelf > preOther {
 		return 1
 	}
 
@@ -226,12 +278,25 @@ func (v *Version) Prerelease() string {
 	return v.pre
 }
 
-// Segments returns the numeric segments of the version as a slice.
+// Segments returns the numeric segments of the version as a slice of ints.
 //
 // This excludes any metadata or pre-release information. For example,
 // for a version "1.2.3-beta", segments will return a slice of
 // 1, 2, 3.
 func (v *Version) Segments() []int {
+	segmentSlice := make([]int, len(v.segments))
+	for i, v := range v.segments {
+		segmentSlice[i] = int(v)
+	}
+	return segmentSlice
+}
+
+// Segments64 returns the numeric segments of the version as a slice of int64s.
+//
+// This excludes any metadata or pre-release information. For example,
+// for a version "1.2.3-beta", segments will return a slice of
+// 1, 2, 3.
+func (v *Version) Segments64() []int64 {
 	return v.segments
 }
 
@@ -239,7 +304,13 @@ func (v *Version) Segments() []int {
 // and metadata information.
 func (v *Version) String() string {
 	var buf bytes.Buffer
-	fmt.Fprintf(&buf, "%d.%d.%d", v.segments[0], v.segments[1], v.segments[2])
+	fmtParts := make([]string, len(v.segments))
+	for i, s := range v.segments {
+		// We can ignore err here since we've pre-parsed the values in segments
+		str := strconv.FormatInt(s, 10)
+		fmtParts[i] = str
+	}
+	fmt.Fprintf(&buf, strings.Join(fmtParts, "."))
 	if v.pre != "" {
 		fmt.Fprintf(&buf, "-%s", v.pre)
 	}

vendor/vendor.json

@@ -25,10 +25,10 @@
 			"revisionTime": "2016-08-22T16:14:30Z"
 		},
 		{
-			"checksumSHA1": "L9njXCkN30+qHaLayiiA2Q9jDlY=",
+			"checksumSHA1": "Rjy2uYZkQ8Kjht6ZFU0qzm2I/kI=",
 			"path": "github.com/Microsoft/go-winio",
-			"revision": "fff283ad5116362ca252298cfc9b95828956d85d",
-			"revisionTime": "2017-02-01T00:43:30Z"
+			"revision": "d311c76e775b5092c023569caacdbb4e569c3243",
+			"revisionTime": "2017-05-08T21:01:43Z"
 		},
 		{
 			"checksumSHA1": "XeG94RjA9o/0wo9Fuw6NSRGYnjk=",
@@ -635,38 +635,38 @@
 		{
 			"checksumSHA1": "jfELEMRhiTcppZmRH+ZwtkVS5Uw=",
 			"path": "github.com/hashicorp/consul/acl",
-			"revision": "21f2d5ad0c02af6c4b32d8fd04f7c81e9b002d41",
-			"revisionTime": "2017-02-15T04:07:11Z"
+			"revision": "e9ca44d0a1757ac9aecc6785904a701936c10e4a",
+			"revisionTime": "2017-04-17T18:01:43Z"
 		},
 		{
-			"checksumSHA1": "ygEjA1d52B1RDmZu8+1WTwkrYDQ=",
+			"checksumSHA1": "k8spDLTgdEFy15C1AdBJLAW+Zng=",
 			"path": "github.com/hashicorp/consul/api",
-			"revision": "21f2d5ad0c02af6c4b32d8fd04f7c81e9b002d41",
-			"revisionTime": "2017-02-15T04:07:11Z"
+			"revision": "e9ca44d0a1757ac9aecc6785904a701936c10e4a",
+			"revisionTime": "2017-04-17T18:01:43Z"
 		},
 		{
-			"checksumSHA1": "nomqbPd9j3XelMMcv7+vTEPsdr4=",
+			"checksumSHA1": "Z1N3jX/5B7GbLNfNp5GTxrsJItc=",
 			"path": "github.com/hashicorp/consul/consul/structs",
-			"revision": "21f2d5ad0c02af6c4b32d8fd04f7c81e9b002d41",
-			"revisionTime": "2017-02-15T04:07:11Z"
+			"revision": "e9ca44d0a1757ac9aecc6785904a701936c10e4a",
+			"revisionTime": "2017-04-17T18:01:43Z"
 		},
 		{
-			"checksumSHA1": "HDRi8BjyCm/zCYGA8l/40GMuWN8=",
+			"checksumSHA1": "XTA8JEhsuJGTUTchjM++oEG7B14=",
 			"path": "github.com/hashicorp/consul/lib",
-			"revision": "21f2d5ad0c02af6c4b32d8fd04f7c81e9b002d41",
-			"revisionTime": "2017-02-15T04:07:11Z"
+			"revision": "e9ca44d0a1757ac9aecc6785904a701936c10e4a",
+			"revisionTime": "2017-04-17T18:01:43Z"
 		},
 		{
-			"checksumSHA1": "+uk5NnYcshPhdCs8hDCHYeT0xWQ=",
+			"checksumSHA1": "yG7c7ZInBE36kw8IPvYb0smctRw=",
 			"path": "github.com/hashicorp/consul/testutil",
-			"revision": "21f2d5ad0c02af6c4b32d8fd04f7c81e9b002d41",
-			"revisionTime": "2017-02-15T04:07:11Z"
+			"revision": "e9ca44d0a1757ac9aecc6785904a701936c10e4a",
+			"revisionTime": "2017-04-17T18:01:43Z"
 		},
 		{
-			"checksumSHA1": "ZPDLNuKJGZJFV9HlJ/V0O4/c/Ko=",
+			"checksumSHA1": "bYK/7DsyTM3YDjvc0RRUH4I+jic=",
 			"path": "github.com/hashicorp/consul/types",
-			"revision": "21f2d5ad0c02af6c4b32d8fd04f7c81e9b002d41",
-			"revisionTime": "2017-02-15T04:07:11Z"
+			"revision": "e9ca44d0a1757ac9aecc6785904a701936c10e4a",
+			"revisionTime": "2017-04-17T18:01:43Z"
 		},
 		{
 			"path": "github.com/hashicorp/errwrap",
@@ -743,8 +743,16 @@
 			"revision": "42a2b573b664dbf281bd48c3cc12c086b17a39ba"
 		},
 		{
+			"checksumSHA1": "mAkPa/RLuIwN53GbwIEMATexams=",
+			"path": "github.com/hashicorp/go-uuid",
+			"revision": "64130c7a86d732268a38cb04cfbaf0cc987fda98",
+			"revisionTime": "2016-07-17T02:21:40Z"
+		},
+		{
+			"checksumSHA1": "tUGxc7rfX0cmhOOUDhMuAZ9rWsA=",
 			"path": "github.com/hashicorp/go-version",
-			"revision": "2e7f5ea8e27bb3fdf9baa0881d16757ac4637332"
+			"revision": "03c5bf6be031b6dd45afec16b1cf94fc8938bc77",
+			"revisionTime": "2017-02-02T08:07:59Z"
 		},
 		{
 			"checksumSHA1": "d9PxF1XQGLMJZRct2R8qVM/eYlE=",

website/source/docs/agent/configuration/consul.html.md

@@ -44,7 +44,8 @@ configuration, Nomad will automatically connect and configure with Consul.
 ## `consul` Parameters
 
 - `address` `(string: "127.0.0.1:8500")` - Specifies the address to the local
-  Consul agent, given in the format `host:port`.
+  Consul agent, given in the format `host:port`. Supports Unix sockets with the
+  format: `unix:///tmp/consul/consul.sock`
 
 - `auth` `(string: "")` - Specifies the HTTP Basic Authentication information to
   use for access to the Consul Agent, given in the format `username:password`.

website/source/docs/agent/configuration/tls.html.md

@@ -54,6 +54,10 @@ the [Agent's Gossip and RPC Encryption](/docs/agent/encryption.html).
   a Nomad client makes the client use TLS for making RPC requests to the Nomad
   servers.
 
+- `verify_https_client` `(bool: false)` - Specifies agents should require
+  client certificates for all incoming HTTPS requests. The client certificates
+  must be signed by the same CA as Nomad.
+
 - `verify_server_hostname` `(bool: false)` - Specifies if outgoing TLS
   connections should verify the server's hostname.
 

website/source/docs/agent/encryption.html.md

@@ -69,9 +69,19 @@ export NOMAD_CACERT=/path/to/ca.pem
 Run any command except `agent` with `-h` to see all environment variables and
 flags. For example: `nomad status -h`
 
-Since HTTPS currently does not validate client certificates you do not need to
+By default HTTPS does not validate client certificates, so you do not need to
 give the command line tool access to any private keys.
 
+### Network Isolation with TLS
+
+If you want to isolate Nomad agents on a network with TLS you need to enable
+both [`verify_https_client`][tls] and [`verify_server_hostname`][tls]. This
+will cause agents to require client certificates for all incoming HTTPS
+connections as well as verify proper names on all other certificates.
+
+Consul will not attempt to health check agents with `verify_https_client` set
+as it is unable to use client certificates.
+
 ## Encryption Examples
 
 ### TLS Configuration using `cfssl`

website/source/docs/commands/node-status.html.md.erb

@@ -149,6 +149,24 @@ ed3665f5  8bf94335  example  cache       run             running
 24cfd201  8bf94335  example  cache       run             running
 ```
 
+You will note that in the above examples, the **Allocations** output contains
+columns labeled **Desired Status** and **Client status**.
+
+Desired Status represents the goal of the scheduler on the allocation with
+the following valid statuses:
+
+- *run*: The allocation should run
+- *stop*: The allocation should stop
+
+Client Status represents the emergent state of the allocation and include
+the following:
+
+- *pending*: The allocation is pending and will be running
+- *running*: The allocation is currently running
+- *complete*: The allocation was running and completed successfully
+- *failed*: The allocation was running and completed with a non-zero exit code
+- *lost*: The node that was running the allocation has failed or has been partitioned
+
 Using `-stats` to see detailed to resource usage information on the node:
 
 ```

website/source/docs/job-specification/group.html.md

@@ -81,7 +81,7 @@ will restrict the tasks to 64-bit operating systems.
 ```hcl
 group "example" {
   constraint {
-    attribute = "${attr.arch}"
+    attribute = "${attr.cpu.arch}"
     value     = "amd64"
   }
 

website/source/docs/job-specification/template.html.md

@@ -49,7 +49,9 @@ README][ct].
 ## `template` Parameters
 
 - `change_mode` `(string: "restart")` - Specifies the behavior Nomad should take
-  if the rendered template changes. The possible values are:
+  if the rendered template changes. Nomad will always write the new contents of
+  the template to the specified destination. The possible values below describe
+  Nomad's action after writing the template to disk.
 
   - `"noop"` - take no action (continue running the task)
   - `"restart"` - restart the task

website/source/docs/operating-a-job/configuring-tasks.html.md

@@ -70,7 +70,7 @@ Nomad has many [drivers](/docs/drivers/index.html), and most support passing
 arguments to their tasks via the `args` parameter. This option also optionally
 accepts [Nomad interpolation](/docs/runtime/interpolation.html). For example, if
 you wanted Nomad to dynamically allocate a high port to bind the service on
-intead of relying on a static port for the previous job:
+instead of relying on a static port for the previous job:
 
 ```hcl
 job "docs" {

website/source/docs/runtime/environment.html.md

@@ -60,6 +60,14 @@ environment variables.
     <td>`NOMAD_JOB_NAME`</td>
     <td>The job's name</td>
   </tr>
+  <tr>
+    <td>`NOMAD_DC`</td>
+    <td>The datacenter in which the allocation is running</td>
+  </tr>
+  <tr>
+    <td>`NOMAD_REGION`</td>
+    <td>The region in which the allocation is running</td>
+  </tr>
   <tr>
     <td>`NOMAD_IP_<label>`</td>
     <td>The IP of the port with the given label</td>

website/source/docs/runtime/interpolation.html.md

@@ -94,7 +94,7 @@ driver.
   <tr>
     <td><tt>${attr.&lt;property&gt;}</tt></td>
     <td>Property given by <tt>property</tt> on the client</td>
-    <td><tt>${attr.arch} => amd64</tt></td>
+    <td><tt>${attr.cpu.arch} => amd64</tt></td>
   </tr>
   <tr>
     <td><tt>${meta.&lt;key&gt;}</tt></td>
@@ -111,7 +111,7 @@ Below is a table documenting common node properties:
     <th>Description</th>
   </tr>
   <tr>
-    <td><tt>${attr.arch}</tt></td>
+    <td><tt>${attr.cpu.arch}</tt></td>
     <td>CPU architecture of the client (e.g. <tt>amd64</tt>, <tt>386</tt>)</td>
   </tr>
   <tr>
@@ -166,7 +166,7 @@ Here are some examples of using node attributes and properties in a job file:
 job "docs" {
   # This will constrain this job to only run on 64-bit clients.
   constraint {
-    attribute = "${attr.arch}"
+    attribute = "${attr.cpu.arch}"
     value     = "amd64"
   }
 

website/source/docs/upgrade/upgrade-specific.html.md

@@ -25,8 +25,24 @@ images to load, in 0.5.5 it has been changed to a single string. No
 functionality was changed. Even if more than one item was specificed prior to
 0.5.5 only the first item was used.
 
-If you have jobs that use the `load` option first upgrade all nodes to 0.5.5,
-then resubmit those jobs with `load` as a single string.
+To do a zero-downtime deploy with jobs that use the `load` option:
+
+* Upgrade servers to version 0.5.5 or later.
+
+* Deploy new client nodes on the same version as the servers.
+
+* Resubmit jobs with the `load` option fixed and a constraint to only run on
+  version 0.5.5 or later:
+
+```hcl
+    constraint {
+      attribute = "${attr.nomad.version}"
+      operator  = "version"
+      value     = ">= 0.5.5"
+    }
+```
+
+* Drain and shutdown old client nodes.
 
 ### Validation changes
 

website/source/intro/vs/kubernetes.html.md

@@ -34,7 +34,7 @@ Nomad combines a lightweight resource manager and a sophisticated scheduler
 into a single system. By default, Nomad is distributed, highly available,
 and operationally simple.
 
-Kubernetes documentation states they can support clusters greater than 1,000 nodes
+Kubernetes documentation states they can support clusters greater than 5,000 nodes
 and they support a multi-AZ/multi-region configuration. Nomad has been tested
 on clusters up to 5,000 nodes, but is expected to work on much larger clusters as
 well. Nomad also supports multi-datacenter and multi-region configurations.

website/source/layouts/_sidebar.erb

@@ -7,7 +7,7 @@
 
   <ul class="nav sidebar-nav">
     <li><a href="/intro/index.html">Intro</a></li>
-    <li><a href="/guides/index.html">Docs</a></li>
+    <li><a href="/guides/index.html">Guides</a></li>
     <li><a href="/docs/index.html">Docs</a></li>
     <li><a href="/community.html">Community</a></li>
     <li><a href="/security.html">Security</a></li>
@@ -23,7 +23,7 @@
       </a>
     </li>
     <li>
-      <a href="https://github.com/mitchellh/vagrant">
+      <a href="https://github.com/hashicorp/nomad">
         <%= inline_svg "github.svg" %> GitHub
       </a>
     </li>