522 lines
13 KiB
Go
522 lines
13 KiB
Go
package client
|
|
|
|
import (
|
|
"fmt"
|
|
"io/ioutil"
|
|
"log"
|
|
"net"
|
|
"os"
|
|
"path/filepath"
|
|
"sync/atomic"
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/hashicorp/nomad/client/config"
|
|
"github.com/hashicorp/nomad/command/agent/consul"
|
|
"github.com/hashicorp/nomad/nomad"
|
|
"github.com/hashicorp/nomad/nomad/mock"
|
|
"github.com/hashicorp/nomad/nomad/structs"
|
|
"github.com/hashicorp/nomad/testutil"
|
|
"github.com/mitchellh/hashstructure"
|
|
|
|
ctestutil "github.com/hashicorp/nomad/client/testutil"
|
|
)
|
|
|
|
var nextPort uint32 = 16000
|
|
|
|
func getPort() int {
|
|
return int(atomic.AddUint32(&nextPort, 1))
|
|
}
|
|
|
|
func testServer(t *testing.T, cb func(*nomad.Config)) (*nomad.Server, string) {
|
|
// Setup the default settings
|
|
config := nomad.DefaultConfig()
|
|
config.Build = "unittest"
|
|
config.DevMode = true
|
|
config.RPCAddr = &net.TCPAddr{
|
|
IP: []byte{127, 0, 0, 1},
|
|
Port: getPort(),
|
|
}
|
|
config.NodeName = fmt.Sprintf("Node %d", config.RPCAddr.Port)
|
|
|
|
// Tighten the Serf timing
|
|
config.SerfConfig.MemberlistConfig.BindAddr = "127.0.0.1"
|
|
config.SerfConfig.MemberlistConfig.BindPort = getPort()
|
|
config.SerfConfig.MemberlistConfig.SuspicionMult = 2
|
|
config.SerfConfig.MemberlistConfig.RetransmitMult = 2
|
|
config.SerfConfig.MemberlistConfig.ProbeTimeout = 50 * time.Millisecond
|
|
config.SerfConfig.MemberlistConfig.ProbeInterval = 100 * time.Millisecond
|
|
config.SerfConfig.MemberlistConfig.GossipInterval = 100 * time.Millisecond
|
|
|
|
// Tighten the Raft timing
|
|
config.RaftConfig.LeaderLeaseTimeout = 20 * time.Millisecond
|
|
config.RaftConfig.HeartbeatTimeout = 40 * time.Millisecond
|
|
config.RaftConfig.ElectionTimeout = 40 * time.Millisecond
|
|
config.RaftConfig.StartAsLeader = true
|
|
config.RaftTimeout = 500 * time.Millisecond
|
|
|
|
// Invoke the callback if any
|
|
if cb != nil {
|
|
cb(config)
|
|
}
|
|
|
|
// Create server
|
|
server, err := nomad.NewServer(config)
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
return server, config.RPCAddr.String()
|
|
}
|
|
|
|
func testClient(t *testing.T, cb func(c *config.Config)) *Client {
|
|
conf := config.DefaultConfig()
|
|
conf.DevMode = true
|
|
if cb != nil {
|
|
cb(conf)
|
|
}
|
|
|
|
shutdownCh := make(chan struct{})
|
|
consulSyncer, err := consul.NewSyncer(conf.ConsulConfig, shutdownCh, log.New(os.Stderr, "", log.LstdFlags))
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
|
|
client, err := NewClient(conf, consulSyncer)
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
return client
|
|
}
|
|
|
|
func TestClient_StartStop(t *testing.T) {
|
|
client := testClient(t, nil)
|
|
if err := client.Shutdown(); err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
}
|
|
|
|
func TestClient_RPC(t *testing.T) {
|
|
s1, addr := testServer(t, nil)
|
|
defer s1.Shutdown()
|
|
|
|
c1 := testClient(t, func(c *config.Config) {
|
|
c.Servers = []string{addr}
|
|
})
|
|
defer c1.Shutdown()
|
|
|
|
// RPC should succeed
|
|
testutil.WaitForResult(func() (bool, error) {
|
|
var out struct{}
|
|
err := c1.RPC("Status.Ping", struct{}{}, &out)
|
|
return err == nil, err
|
|
}, func(err error) {
|
|
t.Fatalf("err: %v", err)
|
|
})
|
|
}
|
|
|
|
func TestClient_RPC_Passthrough(t *testing.T) {
|
|
s1, _ := testServer(t, nil)
|
|
defer s1.Shutdown()
|
|
|
|
c1 := testClient(t, func(c *config.Config) {
|
|
c.RPCHandler = s1
|
|
})
|
|
defer c1.Shutdown()
|
|
|
|
// RPC should succeed
|
|
testutil.WaitForResult(func() (bool, error) {
|
|
var out struct{}
|
|
err := c1.RPC("Status.Ping", struct{}{}, &out)
|
|
return err == nil, err
|
|
}, func(err error) {
|
|
t.Fatalf("err: %v", err)
|
|
})
|
|
}
|
|
|
|
func TestClient_Fingerprint(t *testing.T) {
|
|
c := testClient(t, nil)
|
|
defer c.Shutdown()
|
|
|
|
// Ensure kernel and arch are always present
|
|
node := c.Node()
|
|
if node.Attributes["kernel.name"] == "" {
|
|
t.Fatalf("missing kernel.name")
|
|
}
|
|
if node.Attributes["arch"] == "" {
|
|
t.Fatalf("missing arch")
|
|
}
|
|
}
|
|
|
|
func TestClient_HasNodeChanged(t *testing.T) {
|
|
c := testClient(t, nil)
|
|
defer c.Shutdown()
|
|
|
|
node := c.Node()
|
|
attrHash, err := hashstructure.Hash(node.Attributes, nil)
|
|
if err != nil {
|
|
c.logger.Printf("[DEBUG] client: unable to calculate node attributes hash: %v", err)
|
|
}
|
|
// Calculate node meta map hash
|
|
metaHash, err := hashstructure.Hash(node.Meta, nil)
|
|
if err != nil {
|
|
c.logger.Printf("[DEBUG] client: unable to calculate node meta hash: %v", err)
|
|
}
|
|
if changed, _, _ := c.hasNodeChanged(attrHash, metaHash); changed {
|
|
t.Fatalf("Unexpected hash change.")
|
|
}
|
|
|
|
// Change node attribute
|
|
node.Attributes["arch"] = "xyz_86"
|
|
if changed, newAttrHash, _ := c.hasNodeChanged(attrHash, metaHash); !changed {
|
|
t.Fatalf("Expected hash change in attributes: %d vs %d", attrHash, newAttrHash)
|
|
}
|
|
|
|
// Change node meta map
|
|
node.Meta["foo"] = "bar"
|
|
if changed, _, newMetaHash := c.hasNodeChanged(attrHash, metaHash); !changed {
|
|
t.Fatalf("Expected hash change in meta map: %d vs %d", metaHash, newMetaHash)
|
|
}
|
|
}
|
|
|
|
func TestClient_Fingerprint_InWhitelist(t *testing.T) {
|
|
c := testClient(t, func(c *config.Config) {
|
|
if c.Options == nil {
|
|
c.Options = make(map[string]string)
|
|
}
|
|
|
|
// Weird spacing to test trimming. Whitelist all modules expect cpu.
|
|
c.Options["fingerprint.whitelist"] = " arch, consul,cpu,env_aws,env_gce,host,memory,network,storage,foo,bar "
|
|
})
|
|
defer c.Shutdown()
|
|
|
|
node := c.Node()
|
|
if node.Attributes["cpu.frequency"] == "" {
|
|
t.Fatalf("missing cpu fingerprint module")
|
|
}
|
|
}
|
|
|
|
func TestClient_Fingerprint_OutOfWhitelist(t *testing.T) {
|
|
c := testClient(t, func(c *config.Config) {
|
|
if c.Options == nil {
|
|
c.Options = make(map[string]string)
|
|
}
|
|
|
|
c.Options["fingerprint.whitelist"] = "arch,consul,env_aws,env_gce,host,memory,network,storage,foo,bar"
|
|
})
|
|
defer c.Shutdown()
|
|
|
|
node := c.Node()
|
|
if node.Attributes["cpu.frequency"] != "" {
|
|
t.Fatalf("found cpu fingerprint module")
|
|
}
|
|
}
|
|
|
|
func TestClient_Drivers(t *testing.T) {
|
|
c := testClient(t, nil)
|
|
defer c.Shutdown()
|
|
|
|
node := c.Node()
|
|
if node.Attributes["driver.exec"] == "" {
|
|
t.Fatalf("missing exec driver")
|
|
}
|
|
}
|
|
|
|
func TestClient_Drivers_InWhitelist(t *testing.T) {
|
|
c := testClient(t, func(c *config.Config) {
|
|
if c.Options == nil {
|
|
c.Options = make(map[string]string)
|
|
}
|
|
|
|
// Weird spacing to test trimming
|
|
c.Options["driver.whitelist"] = " exec , foo "
|
|
})
|
|
defer c.Shutdown()
|
|
|
|
node := c.Node()
|
|
if node.Attributes["driver.exec"] == "" {
|
|
t.Fatalf("missing exec driver")
|
|
}
|
|
}
|
|
|
|
func TestClient_Drivers_OutOfWhitelist(t *testing.T) {
|
|
c := testClient(t, func(c *config.Config) {
|
|
if c.Options == nil {
|
|
c.Options = make(map[string]string)
|
|
}
|
|
|
|
c.Options["driver.whitelist"] = "foo,bar,baz"
|
|
})
|
|
defer c.Shutdown()
|
|
|
|
node := c.Node()
|
|
if node.Attributes["driver.exec"] != "" {
|
|
t.Fatalf("found exec driver")
|
|
}
|
|
}
|
|
|
|
func TestClient_Register(t *testing.T) {
|
|
s1, _ := testServer(t, nil)
|
|
defer s1.Shutdown()
|
|
testutil.WaitForLeader(t, s1.RPC)
|
|
|
|
c1 := testClient(t, func(c *config.Config) {
|
|
c.RPCHandler = s1
|
|
})
|
|
defer c1.Shutdown()
|
|
|
|
req := structs.NodeSpecificRequest{
|
|
NodeID: c1.Node().ID,
|
|
QueryOptions: structs.QueryOptions{Region: "global"},
|
|
}
|
|
var out structs.SingleNodeResponse
|
|
|
|
// Register should succeed
|
|
testutil.WaitForResult(func() (bool, error) {
|
|
err := s1.RPC("Node.GetNode", &req, &out)
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
if out.Node == nil {
|
|
return false, fmt.Errorf("missing reg")
|
|
}
|
|
return out.Node.ID == req.NodeID, nil
|
|
}, func(err error) {
|
|
t.Fatalf("err: %v", err)
|
|
})
|
|
}
|
|
|
|
func TestClient_Heartbeat(t *testing.T) {
|
|
s1, _ := testServer(t, func(c *nomad.Config) {
|
|
c.MinHeartbeatTTL = 50 * time.Millisecond
|
|
})
|
|
defer s1.Shutdown()
|
|
testutil.WaitForLeader(t, s1.RPC)
|
|
|
|
c1 := testClient(t, func(c *config.Config) {
|
|
c.RPCHandler = s1
|
|
})
|
|
defer c1.Shutdown()
|
|
|
|
req := structs.NodeSpecificRequest{
|
|
NodeID: c1.Node().ID,
|
|
QueryOptions: structs.QueryOptions{Region: "global"},
|
|
}
|
|
var out structs.SingleNodeResponse
|
|
|
|
// Register should succeed
|
|
testutil.WaitForResult(func() (bool, error) {
|
|
err := s1.RPC("Node.GetNode", &req, &out)
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
if out.Node == nil {
|
|
return false, fmt.Errorf("missing reg")
|
|
}
|
|
return out.Node.Status == structs.NodeStatusReady, nil
|
|
}, func(err error) {
|
|
t.Fatalf("err: %v", err)
|
|
})
|
|
}
|
|
|
|
func TestClient_UpdateAllocStatus(t *testing.T) {
|
|
s1, _ := testServer(t, nil)
|
|
defer s1.Shutdown()
|
|
testutil.WaitForLeader(t, s1.RPC)
|
|
|
|
c1 := testClient(t, func(c *config.Config) {
|
|
c.RPCHandler = s1
|
|
})
|
|
defer c1.Shutdown()
|
|
|
|
alloc := mock.Alloc()
|
|
alloc.NodeID = c1.Node().ID
|
|
originalStatus := "foo"
|
|
alloc.ClientStatus = originalStatus
|
|
|
|
state := s1.State()
|
|
state.UpsertAllocs(100, []*structs.Allocation{alloc})
|
|
|
|
testutil.WaitForResult(func() (bool, error) {
|
|
out, err := state.AllocByID(alloc.ID)
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
if out == nil {
|
|
return false, fmt.Errorf("no such alloc")
|
|
}
|
|
if out.ClientStatus == originalStatus {
|
|
return false, fmt.Errorf("Alloc client status not updated; got %v", out.ClientStatus)
|
|
}
|
|
return true, nil
|
|
}, func(err error) {
|
|
t.Fatalf("err: %v", err)
|
|
})
|
|
}
|
|
|
|
func TestClient_WatchAllocs(t *testing.T) {
|
|
ctestutil.ExecCompatible(t)
|
|
s1, _ := testServer(t, nil)
|
|
defer s1.Shutdown()
|
|
testutil.WaitForLeader(t, s1.RPC)
|
|
|
|
c1 := testClient(t, func(c *config.Config) {
|
|
c.RPCHandler = s1
|
|
})
|
|
defer c1.Shutdown()
|
|
|
|
// Create mock allocations
|
|
alloc1 := mock.Alloc()
|
|
alloc1.NodeID = c1.Node().ID
|
|
alloc2 := mock.Alloc()
|
|
alloc2.NodeID = c1.Node().ID
|
|
|
|
state := s1.State()
|
|
err := state.UpsertAllocs(100,
|
|
[]*structs.Allocation{alloc1, alloc2})
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
|
|
// Both allocations should get registered
|
|
testutil.WaitForResult(func() (bool, error) {
|
|
c1.allocLock.RLock()
|
|
num := len(c1.allocs)
|
|
c1.allocLock.RUnlock()
|
|
return num == 2, nil
|
|
}, func(err error) {
|
|
t.Fatalf("err: %v", err)
|
|
})
|
|
|
|
// Delete one allocation
|
|
err = state.DeleteEval(101, nil, []string{alloc1.ID})
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
|
|
// Update the other allocation. Have to make a copy because the allocs are
|
|
// shared in memory in the test and the modify index would be updated in the
|
|
// alloc runner.
|
|
alloc2_2 := new(structs.Allocation)
|
|
*alloc2_2 = *alloc2
|
|
alloc2_2.DesiredStatus = structs.AllocDesiredStatusStop
|
|
err = state.UpsertAllocs(102,
|
|
[]*structs.Allocation{alloc2_2})
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
|
|
// One allocations should get de-registered
|
|
testutil.WaitForResult(func() (bool, error) {
|
|
c1.allocLock.RLock()
|
|
num := len(c1.allocs)
|
|
c1.allocLock.RUnlock()
|
|
return num == 1, nil
|
|
}, func(err error) {
|
|
t.Fatalf("err: %v", err)
|
|
})
|
|
|
|
// One allocations should get updated
|
|
testutil.WaitForResult(func() (bool, error) {
|
|
c1.allocLock.RLock()
|
|
ar := c1.allocs[alloc2.ID]
|
|
c1.allocLock.RUnlock()
|
|
return ar.Alloc().DesiredStatus == structs.AllocDesiredStatusStop, nil
|
|
}, func(err error) {
|
|
t.Fatalf("err: %v", err)
|
|
})
|
|
}
|
|
|
|
func TestClient_SaveRestoreState(t *testing.T) {
|
|
ctestutil.ExecCompatible(t)
|
|
s1, _ := testServer(t, nil)
|
|
defer s1.Shutdown()
|
|
testutil.WaitForLeader(t, s1.RPC)
|
|
|
|
c1 := testClient(t, func(c *config.Config) {
|
|
c.DevMode = false
|
|
c.RPCHandler = s1
|
|
})
|
|
defer c1.Shutdown()
|
|
|
|
// Create mock allocations
|
|
alloc1 := mock.Alloc()
|
|
alloc1.NodeID = c1.Node().ID
|
|
task := alloc1.Job.TaskGroups[0].Tasks[0]
|
|
task.Config["command"] = "/bin/sleep"
|
|
task.Config["args"] = []string{"10"}
|
|
|
|
state := s1.State()
|
|
err := state.UpsertAllocs(100, []*structs.Allocation{alloc1})
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
|
|
// Allocations should get registered
|
|
testutil.WaitForResult(func() (bool, error) {
|
|
c1.allocLock.RLock()
|
|
ar := c1.allocs[alloc1.ID]
|
|
c1.allocLock.RUnlock()
|
|
return ar != nil && ar.Alloc().ClientStatus == structs.AllocClientStatusRunning, nil
|
|
}, func(err error) {
|
|
t.Fatalf("err: %v", err)
|
|
})
|
|
|
|
// Shutdown the client, saves state
|
|
err = c1.Shutdown()
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
|
|
// Create a new client
|
|
shutdownCh := make(chan struct{})
|
|
consulSyncer, err := consul.NewSyncer(c1.config.ConsulConfig, shutdownCh, log.New(os.Stderr, "", log.LstdFlags))
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
|
|
c2, err := NewClient(c1.config, consulSyncer)
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
defer c2.Shutdown()
|
|
|
|
// Ensure the allocation is running
|
|
testutil.WaitForResult(func() (bool, error) {
|
|
c2.allocLock.RLock()
|
|
ar := c2.allocs[alloc1.ID]
|
|
c2.allocLock.RUnlock()
|
|
status := ar.Alloc().ClientStatus
|
|
alive := status != structs.AllocClientStatusRunning ||
|
|
status != structs.AllocClientStatusPending
|
|
if !alive {
|
|
return false, fmt.Errorf("incorrect client status: %#v", ar.Alloc())
|
|
}
|
|
return true, nil
|
|
}, func(err error) {
|
|
t.Fatalf("err: %v", err)
|
|
})
|
|
}
|
|
|
|
func TestClient_Init(t *testing.T) {
|
|
dir, err := ioutil.TempDir("", "nomad")
|
|
if err != nil {
|
|
t.Fatalf("err: %s", err)
|
|
}
|
|
defer os.RemoveAll(dir)
|
|
allocDir := filepath.Join(dir, "alloc")
|
|
|
|
client := &Client{
|
|
config: &config.Config{
|
|
AllocDir: allocDir,
|
|
},
|
|
logger: log.New(os.Stderr, "", log.LstdFlags),
|
|
}
|
|
if err := client.init(); err != nil {
|
|
t.Fatalf("err: %s", err)
|
|
}
|
|
|
|
if _, err := os.Stat(allocDir); err != nil {
|
|
t.Fatalf("err: %s", err)
|
|
}
|
|
}
|