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open-consul/agent/agent_test.go
Matt Keeler a34f8c751e
Pass a testing.T into NewTestAgent and TestAgent.Start (#5342) 
This way we can avoid unnecessary panics which cause other tests not to run.

This doesn't remove all the possibilities for panics causing other tests not to run, it just fixes the TestAgent
2019-02-14 10:59:14 -05:00

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package agent
import (
"bytes"
"encoding/json"
"fmt"
"io/ioutil"
"net"
"net/http"
"net/http/httptest"
"os"
"path/filepath"
"reflect"
"strings"
"testing"
"time"
"github.com/hashicorp/consul/testrpc"
"github.com/hashicorp/consul/agent/checks"
"github.com/hashicorp/consul/agent/config"
"github.com/hashicorp/consul/agent/connect"
"github.com/hashicorp/consul/agent/structs"
"github.com/hashicorp/consul/api"
"github.com/hashicorp/consul/testutil"
"github.com/hashicorp/consul/testutil/retry"
"github.com/hashicorp/consul/types"
uuid "github.com/hashicorp/go-uuid"
"github.com/pascaldekloe/goe/verify"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func externalIP() (string, error) {
addrs, err := net.InterfaceAddrs()
if err != nil {
return "", fmt.Errorf("Unable to lookup network interfaces: %v", err)
}
for _, a := range addrs {
if ipnet, ok := a.(*net.IPNet); ok && !ipnet.IP.IsLoopback() {
if ipnet.IP.To4() != nil {
return ipnet.IP.String(), nil
}
}
}
return "", fmt.Errorf("Unable to find a non-loopback interface")
}
func TestAgent_MultiStartStop(t *testing.T) {
for i := 0; i < 10; i++ {
t.Run("", func(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), "")
time.Sleep(250 * time.Millisecond)
a.Shutdown()
})
}
}
func TestAgent_ConnectClusterIDConfig(t *testing.T) {
tests := []struct {
name string
hcl string
wantClusterID string
wantPanic bool
}{
{
name: "default TestAgent has fixed cluster id",
hcl: "",
wantClusterID: connect.TestClusterID,
},
{
name: "no cluster ID specified sets to test ID",
hcl: "connect { enabled = true }",
wantClusterID: connect.TestClusterID,
},
{
name: "non-UUID cluster_id is fatal",
hcl: `connect {
enabled = true
ca_config {
cluster_id = "fake-id"
}
}`,
wantClusterID: "",
wantPanic: true,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
// Indirection to support panic recovery cleanly
testFn := func() {
a := &TestAgent{Name: "test", HCL: tt.hcl}
a.ExpectConfigError = tt.wantPanic
a.Start(t)
defer a.Shutdown()
cfg := a.consulConfig()
assert.Equal(t, tt.wantClusterID, cfg.CAConfig.ClusterID)
}
if tt.wantPanic {
require.Panics(t, testFn)
} else {
testFn()
}
})
}
}
func TestAgent_StartStop(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), "")
defer a.Shutdown()
if err := a.Leave(); err != nil {
t.Fatalf("err: %v", err)
}
if err := a.Shutdown(); err != nil {
t.Fatalf("err: %v", err)
}
select {
case <-a.ShutdownCh():
default:
t.Fatalf("should be closed")
}
}
func TestAgent_RPCPing(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), "")
defer a.Shutdown()
var out struct{}
if err := a.RPC("Status.Ping", struct{}{}, &out); err != nil {
t.Fatalf("err: %v", err)
}
}
func TestAgent_TokenStore(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), `
acl_token = "user"
acl_agent_token = "agent"
acl_agent_master_token = "master"`,
)
defer a.Shutdown()
if got, want := a.tokens.UserToken(), "user"; got != want {
t.Fatalf("got %q want %q", got, want)
}
if got, want := a.tokens.AgentToken(), "agent"; got != want {
t.Fatalf("got %q want %q", got, want)
}
if got, want := a.tokens.IsAgentMasterToken("master"), true; got != want {
t.Fatalf("got %v want %v", got, want)
}
}
func TestAgent_ReconnectConfigSettings(t *testing.T) {
t.Parallel()
func() {
a := NewTestAgent(t, t.Name(), "")
defer a.Shutdown()
lan := a.consulConfig().SerfLANConfig.ReconnectTimeout
if lan != 3*24*time.Hour {
t.Fatalf("bad: %s", lan.String())
}
wan := a.consulConfig().SerfWANConfig.ReconnectTimeout
if wan != 3*24*time.Hour {
t.Fatalf("bad: %s", wan.String())
}
}()
func() {
a := NewTestAgent(t, t.Name(), `
reconnect_timeout = "24h"
reconnect_timeout_wan = "36h"
`)
defer a.Shutdown()
lan := a.consulConfig().SerfLANConfig.ReconnectTimeout
if lan != 24*time.Hour {
t.Fatalf("bad: %s", lan.String())
}
wan := a.consulConfig().SerfWANConfig.ReconnectTimeout
if wan != 36*time.Hour {
t.Fatalf("bad: %s", wan.String())
}
}()
}
func TestAgent_ReconnectConfigWanDisabled(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), `
ports { serf_wan = -1 }
reconnect_timeout_wan = "36h"
`)
defer a.Shutdown()
// This is also testing that we dont panic like before #4515
require.Nil(t, a.consulConfig().SerfWANConfig)
}
func TestAgent_setupNodeID(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), `
node_id = ""
`)
defer a.Shutdown()
cfg := a.config
// The auto-assigned ID should be valid.
id := a.consulConfig().NodeID
if _, err := uuid.ParseUUID(string(id)); err != nil {
t.Fatalf("err: %v", err)
}
// Running again should get the same ID (persisted in the file).
cfg.NodeID = ""
if err := a.setupNodeID(cfg); err != nil {
t.Fatalf("err: %v", err)
}
if newID := a.consulConfig().NodeID; id != newID {
t.Fatalf("bad: %q vs %q", id, newID)
}
// Set an invalid ID via.Config.
cfg.NodeID = types.NodeID("nope")
err := a.setupNodeID(cfg)
if err == nil || !strings.Contains(err.Error(), "uuid string is wrong length") {
t.Fatalf("err: %v", err)
}
// Set a valid ID via.Config.
newID, err := uuid.GenerateUUID()
if err != nil {
t.Fatalf("err: %v", err)
}
cfg.NodeID = types.NodeID(strings.ToUpper(newID))
if err := a.setupNodeID(cfg); err != nil {
t.Fatalf("err: %v", err)
}
if id := a.consulConfig().NodeID; string(id) != newID {
t.Fatalf("bad: %q vs. %q", id, newID)
}
// Set an invalid ID via the file.
fileID := filepath.Join(cfg.DataDir, "node-id")
if err := ioutil.WriteFile(fileID, []byte("adf4238a!882b!9ddc!4a9d!5b6758e4159e"), 0600); err != nil {
t.Fatalf("err: %v", err)
}
cfg.NodeID = ""
err = a.setupNodeID(cfg)
if err == nil || !strings.Contains(err.Error(), "uuid is improperly formatted") {
t.Fatalf("err: %v", err)
}
// Set a valid ID via the file.
if err := ioutil.WriteFile(fileID, []byte("ADF4238a-882b-9ddc-4a9d-5b6758e4159e"), 0600); err != nil {
t.Fatalf("err: %v", err)
}
cfg.NodeID = ""
if err := a.setupNodeID(cfg); err != nil {
t.Fatalf("err: %v", err)
}
if id := a.consulConfig().NodeID; string(id) != "adf4238a-882b-9ddc-4a9d-5b6758e4159e" {
t.Fatalf("bad: %q vs. %q", id, newID)
}
}
func TestAgent_makeNodeID(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), `
node_id = ""
`)
defer a.Shutdown()
// We should get a valid host-based ID initially.
id, err := a.makeNodeID()
if err != nil {
t.Fatalf("err: %v", err)
}
if _, err := uuid.ParseUUID(string(id)); err != nil {
t.Fatalf("err: %v", err)
}
// Calling again should yield a random ID by default.
another, err := a.makeNodeID()
if err != nil {
t.Fatalf("err: %v", err)
}
if id == another {
t.Fatalf("bad: %s vs %s", id, another)
}
// Turn on host-based IDs and try again. We should get the same ID
// each time (and a different one from the random one above).
a.Config.DisableHostNodeID = false
id, err = a.makeNodeID()
if err != nil {
t.Fatalf("err: %v", err)
}
if id == another {
t.Fatalf("bad: %s vs %s", id, another)
}
// Calling again should yield the host-based ID.
another, err = a.makeNodeID()
if err != nil {
t.Fatalf("err: %v", err)
}
if id != another {
t.Fatalf("bad: %s vs %s", id, another)
}
}
func TestAgent_AddService(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), `
node_name = "node1"
`)
defer a.Shutdown()
tests := []struct {
desc string
srv *structs.NodeService
wantSrv func(ns *structs.NodeService)
chkTypes []*structs.CheckType
healthChks map[string]*structs.HealthCheck
}{
{
"one check",
&structs.NodeService{
ID: "svcid1",
Service: "svcname1",
Tags: []string{"tag1"},
Weights: nil, // nil weights...
Port: 8100,
},
// ... should be populated to avoid "IsSame" returning true during AE.
func(ns *structs.NodeService) {
ns.Weights = &structs.Weights{
Passing: 1,
Warning: 1,
}
},
[]*structs.CheckType{
&structs.CheckType{
CheckID: "check1",
Name: "name1",
TTL: time.Minute,
Notes: "note1",
},
},
map[string]*structs.HealthCheck{
"check1": &structs.HealthCheck{
Node: "node1",
CheckID: "check1",
Name: "name1",
Status: "critical",
Notes: "note1",
ServiceID: "svcid1",
ServiceName: "svcname1",
ServiceTags: []string{"tag1"},
},
},
},
{
"multiple checks",
&structs.NodeService{
ID: "svcid2",
Service: "svcname2",
Weights: &structs.Weights{
Passing: 2,
Warning: 1,
},
Tags: []string{"tag2"},
Port: 8200,
},
nil, // No change expected
[]*structs.CheckType{
&structs.CheckType{
CheckID: "check1",
Name: "name1",
TTL: time.Minute,
Notes: "note1",
},
&structs.CheckType{
CheckID: "check-noname",
TTL: time.Minute,
},
&structs.CheckType{
Name: "check-noid",
TTL: time.Minute,
},
&structs.CheckType{
TTL: time.Minute,
},
},
map[string]*structs.HealthCheck{
"check1": &structs.HealthCheck{
Node: "node1",
CheckID: "check1",
Name: "name1",
Status: "critical",
Notes: "note1",
ServiceID: "svcid2",
ServiceName: "svcname2",
ServiceTags: []string{"tag2"},
},
"check-noname": &structs.HealthCheck{
Node: "node1",
CheckID: "check-noname",
Name: "Service 'svcname2' check",
Status: "critical",
ServiceID: "svcid2",
ServiceName: "svcname2",
ServiceTags: []string{"tag2"},
},
"service:svcid2:3": &structs.HealthCheck{
Node: "node1",
CheckID: "service:svcid2:3",
Name: "check-noid",
Status: "critical",
ServiceID: "svcid2",
ServiceName: "svcname2",
ServiceTags: []string{"tag2"},
},
"service:svcid2:4": &structs.HealthCheck{
Node: "node1",
CheckID: "service:svcid2:4",
Name: "Service 'svcname2' check",
Status: "critical",
ServiceID: "svcid2",
ServiceName: "svcname2",
ServiceTags: []string{"tag2"},
},
},
},
}
for _, tt := range tests {
t.Run(tt.desc, func(t *testing.T) {
// check the service registration
t.Run(tt.srv.ID, func(t *testing.T) {
err := a.AddService(tt.srv, tt.chkTypes, false, "", ConfigSourceLocal)
if err != nil {
t.Fatalf("err: %v", err)
}
got := a.State.Services()[tt.srv.ID]
// Make a copy since the tt.srv points to the one in memory in the local
// state still so changing it is a tautology!
want := *tt.srv
if tt.wantSrv != nil {
tt.wantSrv(&want)
}
require.Equal(t, &want, got)
require.True(t, got.IsSame(&want))
})
// check the health checks
for k, v := range tt.healthChks {
t.Run(k, func(t *testing.T) {
got := a.State.Checks()[types.CheckID(k)]
require.Equal(t, v, got)
})
}
// check the ttl checks
for k := range tt.healthChks {
t.Run(k+" ttl", func(t *testing.T) {
chk := a.checkTTLs[types.CheckID(k)]
if chk == nil {
t.Fatal("got nil want TTL check")
}
if got, want := string(chk.CheckID), k; got != want {
t.Fatalf("got CheckID %v want %v", got, want)
}
if got, want := chk.TTL, time.Minute; got != want {
t.Fatalf("got TTL %v want %v", got, want)
}
})
}
})
}
}
func TestAgent_AddServiceNoExec(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), `
node_name = "node1"
`)
defer a.Shutdown()
testrpc.WaitForTestAgent(t, a.RPC, "dc1")
srv := &structs.NodeService{
ID: "svcid1",
Service: "svcname1",
Tags: []string{"tag1"},
Port: 8100,
}
chk := &structs.CheckType{
ScriptArgs: []string{"exit", "0"},
Interval: 15 * time.Second,
}
err := a.AddService(srv, []*structs.CheckType{chk}, false, "", ConfigSourceLocal)
if err == nil || !strings.Contains(err.Error(), "Scripts are disabled on this agent") {
t.Fatalf("err: %v", err)
}
err = a.AddService(srv, []*structs.CheckType{chk}, false, "", ConfigSourceRemote)
if err == nil || !strings.Contains(err.Error(), "Scripts are disabled on this agent") {
t.Fatalf("err: %v", err)
}
}
func TestAgent_AddServiceNoRemoteExec(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), `
node_name = "node1"
enable_local_script_checks = true
`)
defer a.Shutdown()
testrpc.WaitForTestAgent(t, a.RPC, "dc1")
srv := &structs.NodeService{
ID: "svcid1",
Service: "svcname1",
Tags: []string{"tag1"},
Port: 8100,
}
chk := &structs.CheckType{
ScriptArgs: []string{"exit", "0"},
Interval: 15 * time.Second,
}
err := a.AddService(srv, []*structs.CheckType{chk}, false, "", ConfigSourceRemote)
if err == nil || !strings.Contains(err.Error(), "Scripts are disabled on this agent") {
t.Fatalf("err: %v", err)
}
}
func TestAgent_RemoveService(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), "")
defer a.Shutdown()
// Remove a service that doesn't exist
if err := a.RemoveService("redis", false); err != nil {
t.Fatalf("err: %v", err)
}
// Remove without an ID
if err := a.RemoveService("", false); err == nil {
t.Fatalf("should have errored")
}
// Removing a service with a single check works
{
srv := &structs.NodeService{
ID: "memcache",
Service: "memcache",
Port: 8000,
}
chkTypes := []*structs.CheckType{&structs.CheckType{TTL: time.Minute}}
if err := a.AddService(srv, chkTypes, false, "", ConfigSourceLocal); err != nil {
t.Fatalf("err: %v", err)
}
// Add a check after the fact with a specific check ID
check := &structs.CheckDefinition{
ID: "check2",
Name: "check2",
ServiceID: "memcache",
TTL: time.Minute,
}
hc := check.HealthCheck("node1")
if err := a.AddCheck(hc, check.CheckType(), false, "", ConfigSourceLocal); err != nil {
t.Fatalf("err: %s", err)
}
if err := a.RemoveService("memcache", false); err != nil {
t.Fatalf("err: %s", err)
}
if _, ok := a.State.Checks()["service:memcache"]; ok {
t.Fatalf("have memcache check")
}
if _, ok := a.State.Checks()["check2"]; ok {
t.Fatalf("have check2 check")
}
}
// Removing a service with multiple checks works
{
srv := &structs.NodeService{
ID: "redis",
Service: "redis",
Port: 8000,
}
chkTypes := []*structs.CheckType{
&structs.CheckType{TTL: time.Minute},
&structs.CheckType{TTL: 30 * time.Second},
}
if err := a.AddService(srv, chkTypes, false, "", ConfigSourceLocal); err != nil {
t.Fatalf("err: %v", err)
}
// Remove the service
if err := a.RemoveService("redis", false); err != nil {
t.Fatalf("err: %v", err)
}
// Ensure we have a state mapping
if _, ok := a.State.Services()["redis"]; ok {
t.Fatalf("have redis service")
}
// Ensure checks were removed
if _, ok := a.State.Checks()["service:redis:1"]; ok {
t.Fatalf("check redis:1 should be removed")
}
if _, ok := a.State.Checks()["service:redis:2"]; ok {
t.Fatalf("check redis:2 should be removed")
}
// Ensure a TTL is setup
if _, ok := a.checkTTLs["service:redis:1"]; ok {
t.Fatalf("check ttl for redis:1 should be removed")
}
if _, ok := a.checkTTLs["service:redis:2"]; ok {
t.Fatalf("check ttl for redis:2 should be removed")
}
}
}
func TestAgent_RemoveServiceRemovesAllChecks(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), `
node_name = "node1"
`)
defer a.Shutdown()
svc := &structs.NodeService{ID: "redis", Service: "redis", Port: 8000}
chk1 := &structs.CheckType{CheckID: "chk1", Name: "chk1", TTL: time.Minute}
chk2 := &structs.CheckType{CheckID: "chk2", Name: "chk2", TTL: 2 * time.Minute}
hchk1 := &structs.HealthCheck{Node: "node1", CheckID: "chk1", Name: "chk1", Status: "critical", ServiceID: "redis", ServiceName: "redis"}
hchk2 := &structs.HealthCheck{Node: "node1", CheckID: "chk2", Name: "chk2", Status: "critical", ServiceID: "redis", ServiceName: "redis"}
// register service with chk1
if err := a.AddService(svc, []*structs.CheckType{chk1}, false, "", ConfigSourceLocal); err != nil {
t.Fatal("Failed to register service", err)
}
// verify chk1 exists
if a.State.Checks()["chk1"] == nil {
t.Fatal("Could not find health check chk1")
}
// update the service with chk2
if err := a.AddService(svc, []*structs.CheckType{chk2}, false, "", ConfigSourceLocal); err != nil {
t.Fatal("Failed to update service", err)
}
// check that both checks are there
if got, want := a.State.Checks()["chk1"], hchk1; !verify.Values(t, "", got, want) {
t.FailNow()
}
if got, want := a.State.Checks()["chk2"], hchk2; !verify.Values(t, "", got, want) {
t.FailNow()
}
// Remove service
if err := a.RemoveService("redis", false); err != nil {
t.Fatal("Failed to remove service", err)
}
// Check that both checks are gone
if a.State.Checks()["chk1"] != nil {
t.Fatal("Found health check chk1 want nil")
}
if a.State.Checks()["chk2"] != nil {
t.Fatal("Found health check chk2 want nil")
}
}
// TestAgent_IndexChurn is designed to detect a class of issues where
// we would have unnecessary catalog churn from anti-entropy. See issues
// #3259, #3642, #3845, and #3866.
func TestAgent_IndexChurn(t *testing.T) {
t.Parallel()
t.Run("no tags", func(t *testing.T) {
verifyIndexChurn(t, nil)
})
t.Run("with tags", func(t *testing.T) {
verifyIndexChurn(t, []string{"foo", "bar"})
})
}
// verifyIndexChurn registers some things and runs anti-entropy a bunch of times
// in a row to make sure there are no index bumps.
func verifyIndexChurn(t *testing.T, tags []string) {
t.Helper()
a := NewTestAgent(t, t.Name(), "")
defer a.Shutdown()
weights := &structs.Weights{
Passing: 1,
Warning: 1,
}
// Ensure we have a leader before we start adding the services
testrpc.WaitForLeader(t, a.RPC, "dc1")
svc := &structs.NodeService{
ID: "redis",
Service: "redis",
Port: 8000,
Tags: tags,
Weights: weights,
}
if err := a.AddService(svc, nil, true, "", ConfigSourceLocal); err != nil {
t.Fatalf("err: %v", err)
}
chk := &structs.HealthCheck{
CheckID: "redis-check",
Name: "Service-level check",
ServiceID: "redis",
Status: api.HealthCritical,
}
chkt := &structs.CheckType{
TTL: time.Hour,
}
if err := a.AddCheck(chk, chkt, true, "", ConfigSourceLocal); err != nil {
t.Fatalf("err: %v", err)
}
chk = &structs.HealthCheck{
CheckID: "node-check",
Name: "Node-level check",
Status: api.HealthCritical,
}
chkt = &structs.CheckType{
TTL: time.Hour,
}
if err := a.AddCheck(chk, chkt, true, "", ConfigSourceLocal); err != nil {
t.Fatalf("err: %v", err)
}
if err := a.sync.State.SyncFull(); err != nil {
t.Fatalf("err: %v", err)
}
args := &structs.ServiceSpecificRequest{
Datacenter: "dc1",
ServiceName: "redis",
}
var before structs.IndexedCheckServiceNodes
// This sleep is so that the serfHealth check is added to the agent
// A value of 375ms is sufficient enough time to ensure the serfHealth
// check is added to an agent. 500ms so that we don't see flakiness ever.
time.Sleep(500 * time.Millisecond)
if err := a.RPC("Health.ServiceNodes", args, &before); err != nil {
t.Fatalf("err: %v", err)
}
for _, name := range before.Nodes[0].Checks {
a.logger.Println("[DEBUG] Checks Registered: ", name.Name)
}
if got, want := len(before.Nodes), 1; got != want {
t.Fatalf("got %d want %d", got, want)
}
if got, want := len(before.Nodes[0].Checks), 3; /* incl. serfHealth */ got != want {
t.Fatalf("got %d want %d", got, want)
}
for i := 0; i < 10; i++ {
a.logger.Println("[INFO] # ", i+1, "Sync in progress ")
if err := a.sync.State.SyncFull(); err != nil {
t.Fatalf("err: %v", err)
}
}
// If this test fails here this means that the Consul-X-Index
// has changed for the RPC, which means that idempotent ops
// are not working as intended.
var after structs.IndexedCheckServiceNodes
if err := a.RPC("Health.ServiceNodes", args, &after); err != nil {
t.Fatalf("err: %v", err)
}
verify.Values(t, "", after, before)
}
func TestAgent_AddCheck(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), `
enable_script_checks = true
`)
defer a.Shutdown()
health := &structs.HealthCheck{
Node: "foo",
CheckID: "mem",
Name: "memory util",
Status: api.HealthCritical,
}
chk := &structs.CheckType{
ScriptArgs: []string{"exit", "0"},
Interval: 15 * time.Second,
}
err := a.AddCheck(health, chk, false, "", ConfigSourceLocal)
if err != nil {
t.Fatalf("err: %v", err)
}
// Ensure we have a check mapping
sChk, ok := a.State.Checks()["mem"]
if !ok {
t.Fatalf("missing mem check")
}
// Ensure our check is in the right state
if sChk.Status != api.HealthCritical {
t.Fatalf("check not critical")
}
// Ensure a TTL is setup
if _, ok := a.checkMonitors["mem"]; !ok {
t.Fatalf("missing mem monitor")
}
}
func TestAgent_AddCheck_StartPassing(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), `
enable_script_checks = true
`)
defer a.Shutdown()
health := &structs.HealthCheck{
Node: "foo",
CheckID: "mem",
Name: "memory util",
Status: api.HealthPassing,
}
chk := &structs.CheckType{
ScriptArgs: []string{"exit", "0"},
Interval: 15 * time.Second,
}
err := a.AddCheck(health, chk, false, "", ConfigSourceLocal)
if err != nil {
t.Fatalf("err: %v", err)
}
// Ensure we have a check mapping
sChk, ok := a.State.Checks()["mem"]
if !ok {
t.Fatalf("missing mem check")
}
// Ensure our check is in the right state
if sChk.Status != api.HealthPassing {
t.Fatalf("check not passing")
}
// Ensure a TTL is setup
if _, ok := a.checkMonitors["mem"]; !ok {
t.Fatalf("missing mem monitor")
}
}
func TestAgent_AddCheck_MinInterval(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), `
enable_script_checks = true
`)
defer a.Shutdown()
health := &structs.HealthCheck{
Node: "foo",
CheckID: "mem",
Name: "memory util",
Status: api.HealthCritical,
}
chk := &structs.CheckType{
ScriptArgs: []string{"exit", "0"},
Interval: time.Microsecond,
}
err := a.AddCheck(health, chk, false, "", ConfigSourceLocal)
if err != nil {
t.Fatalf("err: %v", err)
}
// Ensure we have a check mapping
if _, ok := a.State.Checks()["mem"]; !ok {
t.Fatalf("missing mem check")
}
// Ensure a TTL is setup
if mon, ok := a.checkMonitors["mem"]; !ok {
t.Fatalf("missing mem monitor")
} else if mon.Interval != checks.MinInterval {
t.Fatalf("bad mem monitor interval")
}
}
func TestAgent_AddCheck_MissingService(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), `
enable_script_checks = true
`)
defer a.Shutdown()
health := &structs.HealthCheck{
Node: "foo",
CheckID: "baz",
Name: "baz check 1",
ServiceID: "baz",
}
chk := &structs.CheckType{
ScriptArgs: []string{"exit", "0"},
Interval: time.Microsecond,
}
err := a.AddCheck(health, chk, false, "", ConfigSourceLocal)
if err == nil || err.Error() != `ServiceID "baz" does not exist` {
t.Fatalf("expected service id error, got: %v", err)
}
}
func TestAgent_AddCheck_RestoreState(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), "")
defer a.Shutdown()
// Create some state and persist it
ttl := &checks.CheckTTL{
CheckID: "baz",
TTL: time.Minute,
}
err := a.persistCheckState(ttl, api.HealthPassing, "yup")
if err != nil {
t.Fatalf("err: %s", err)
}
// Build and register the check definition and initial state
health := &structs.HealthCheck{
Node: "foo",
CheckID: "baz",
Name: "baz check 1",
}
chk := &structs.CheckType{
TTL: time.Minute,
}
err = a.AddCheck(health, chk, false, "", ConfigSourceLocal)
if err != nil {
t.Fatalf("err: %s", err)
}
// Ensure the check status was restored during registration
checks := a.State.Checks()
check, ok := checks["baz"]
if !ok {
t.Fatalf("missing check")
}
if check.Status != api.HealthPassing {
t.Fatalf("bad: %#v", check)
}
if check.Output != "yup" {
t.Fatalf("bad: %#v", check)
}
}
func TestAgent_AddCheck_ExecDisable(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), "")
defer a.Shutdown()
health := &structs.HealthCheck{
Node: "foo",
CheckID: "mem",
Name: "memory util",
Status: api.HealthCritical,
}
chk := &structs.CheckType{
ScriptArgs: []string{"exit", "0"},
Interval: 15 * time.Second,
}
err := a.AddCheck(health, chk, false, "", ConfigSourceLocal)
if err == nil || !strings.Contains(err.Error(), "Scripts are disabled on this agent") {
t.Fatalf("err: %v", err)
}
// Ensure we don't have a check mapping
if memChk := a.State.Checks()["mem"]; memChk != nil {
t.Fatalf("should be missing mem check")
}
err = a.AddCheck(health, chk, false, "", ConfigSourceRemote)
if err == nil || !strings.Contains(err.Error(), "Scripts are disabled on this agent") {
t.Fatalf("err: %v", err)
}
// Ensure we don't have a check mapping
if memChk := a.State.Checks()["mem"]; memChk != nil {
t.Fatalf("should be missing mem check")
}
}
func TestAgent_AddCheck_ExecRemoteDisable(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), `
enable_local_script_checks = true
`)
defer a.Shutdown()
testrpc.WaitForTestAgent(t, a.RPC, "dc1")
health := &structs.HealthCheck{
Node: "foo",
CheckID: "mem",
Name: "memory util",
Status: api.HealthCritical,
}
chk := &structs.CheckType{
ScriptArgs: []string{"exit", "0"},
Interval: 15 * time.Second,
}
err := a.AddCheck(health, chk, false, "", ConfigSourceRemote)
if err == nil || !strings.Contains(err.Error(), "Scripts are disabled on this agent from remote calls") {
t.Fatalf("err: %v", err)
}
// Ensure we don't have a check mapping
if memChk := a.State.Checks()["mem"]; memChk != nil {
t.Fatalf("should be missing mem check")
}
}
func TestAgent_AddCheck_GRPC(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), "")
defer a.Shutdown()
health := &structs.HealthCheck{
Node: "foo",
CheckID: "grpchealth",
Name: "grpc health checking protocol",
Status: api.HealthCritical,
}
chk := &structs.CheckType{
GRPC: "localhost:12345/package.Service",
Interval: 15 * time.Second,
}
err := a.AddCheck(health, chk, false, "", ConfigSourceLocal)
if err != nil {
t.Fatalf("err: %v", err)
}
// Ensure we have a check mapping
sChk, ok := a.State.Checks()["grpchealth"]
if !ok {
t.Fatalf("missing grpchealth check")
}
// Ensure our check is in the right state
if sChk.Status != api.HealthCritical {
t.Fatalf("check not critical")
}
// Ensure a check is setup
if _, ok := a.checkGRPCs["grpchealth"]; !ok {
t.Fatalf("missing grpchealth check")
}
}
func TestAgent_AddCheck_Alias(t *testing.T) {
t.Parallel()
require := require.New(t)
a := NewTestAgent(t, t.Name(), "")
defer a.Shutdown()
health := &structs.HealthCheck{
Node: "foo",
CheckID: "aliashealth",
Name: "Alias health check",
Status: api.HealthCritical,
}
chk := &structs.CheckType{
AliasService: "foo",
}
err := a.AddCheck(health, chk, false, "", ConfigSourceLocal)
require.NoError(err)
// Ensure we have a check mapping
sChk, ok := a.State.Checks()["aliashealth"]
require.True(ok, "missing aliashealth check")
require.NotNil(sChk)
require.Equal(api.HealthCritical, sChk.Status)
chkImpl, ok := a.checkAliases["aliashealth"]
require.True(ok, "missing aliashealth check")
require.Equal("", chkImpl.RPCReq.Token)
cs := a.State.CheckState("aliashealth")
require.NotNil(cs)
require.Equal("", cs.Token)
}
func TestAgent_AddCheck_Alias_setToken(t *testing.T) {
t.Parallel()
require := require.New(t)
a := NewTestAgent(t, t.Name(), "")
defer a.Shutdown()
health := &structs.HealthCheck{
Node: "foo",
CheckID: "aliashealth",
Name: "Alias health check",
Status: api.HealthCritical,
}
chk := &structs.CheckType{
AliasService: "foo",
}
err := a.AddCheck(health, chk, false, "foo", ConfigSourceLocal)
require.NoError(err)
cs := a.State.CheckState("aliashealth")
require.NotNil(cs)
require.Equal("foo", cs.Token)
chkImpl, ok := a.checkAliases["aliashealth"]
require.True(ok, "missing aliashealth check")
require.Equal("foo", chkImpl.RPCReq.Token)
}
func TestAgent_AddCheck_Alias_userToken(t *testing.T) {
t.Parallel()
require := require.New(t)
a := NewTestAgent(t, t.Name(), `
acl_token = "hello"
`)
defer a.Shutdown()
health := &structs.HealthCheck{
Node: "foo",
CheckID: "aliashealth",
Name: "Alias health check",
Status: api.HealthCritical,
}
chk := &structs.CheckType{
AliasService: "foo",
}
err := a.AddCheck(health, chk, false, "", ConfigSourceLocal)
require.NoError(err)
cs := a.State.CheckState("aliashealth")
require.NotNil(cs)
require.Equal("", cs.Token) // State token should still be empty
chkImpl, ok := a.checkAliases["aliashealth"]
require.True(ok, "missing aliashealth check")
require.Equal("hello", chkImpl.RPCReq.Token) // Check should use the token
}
func TestAgent_AddCheck_Alias_userAndSetToken(t *testing.T) {
t.Parallel()
require := require.New(t)
a := NewTestAgent(t, t.Name(), `
acl_token = "hello"
`)
defer a.Shutdown()
health := &structs.HealthCheck{
Node: "foo",
CheckID: "aliashealth",
Name: "Alias health check",
Status: api.HealthCritical,
}
chk := &structs.CheckType{
AliasService: "foo",
}
err := a.AddCheck(health, chk, false, "goodbye", ConfigSourceLocal)
require.NoError(err)
cs := a.State.CheckState("aliashealth")
require.NotNil(cs)
require.Equal("goodbye", cs.Token)
chkImpl, ok := a.checkAliases["aliashealth"]
require.True(ok, "missing aliashealth check")
require.Equal("goodbye", chkImpl.RPCReq.Token)
}
func TestAgent_RemoveCheck(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), `
enable_script_checks = true
`)
defer a.Shutdown()
// Remove check that doesn't exist
if err := a.RemoveCheck("mem", false); err != nil {
t.Fatalf("err: %v", err)
}
// Remove without an ID
if err := a.RemoveCheck("", false); err == nil {
t.Fatalf("should have errored")
}
health := &structs.HealthCheck{
Node: "foo",
CheckID: "mem",
Name: "memory util",
Status: api.HealthCritical,
}
chk := &structs.CheckType{
ScriptArgs: []string{"exit", "0"},
Interval: 15 * time.Second,
}
err := a.AddCheck(health, chk, false, "", ConfigSourceLocal)
if err != nil {
t.Fatalf("err: %v", err)
}
// Remove check
if err := a.RemoveCheck("mem", false); err != nil {
t.Fatalf("err: %v", err)
}
// Ensure we have a check mapping
if _, ok := a.State.Checks()["mem"]; ok {
t.Fatalf("have mem check")
}
// Ensure a TTL is setup
if _, ok := a.checkMonitors["mem"]; ok {
t.Fatalf("have mem monitor")
}
}
func TestAgent_HTTPCheck_TLSSkipVerify(t *testing.T) {
t.Parallel()
handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
fmt.Fprintln(w, "GOOD")
})
server := httptest.NewTLSServer(handler)
defer server.Close()
a := NewTestAgent(t, t.Name(), "")
defer a.Shutdown()
health := &structs.HealthCheck{
Node: "foo",
CheckID: "tls",
Name: "tls check",
Status: api.HealthCritical,
}
chk := &structs.CheckType{
HTTP: server.URL,
Interval: 20 * time.Millisecond,
TLSSkipVerify: true,
}
err := a.AddCheck(health, chk, false, "", ConfigSourceLocal)
if err != nil {
t.Fatalf("err: %v", err)
}
retry.Run(t, func(r *retry.R) {
status := a.State.Checks()["tls"]
if status.Status != api.HealthPassing {
r.Fatalf("bad: %v", status.Status)
}
if !strings.Contains(status.Output, "GOOD") {
r.Fatalf("bad: %v", status.Output)
}
})
}
func TestAgent_HTTPCheck_EnableAgentTLSForChecks(t *testing.T) {
t.Parallel()
run := func(t *testing.T, ca string) {
a := &TestAgent{
Name: t.Name(),
UseTLS: true,
HCL: `
enable_agent_tls_for_checks = true
verify_incoming = true
server_name = "consul.test"
key_file = "../test/client_certs/server.key"
cert_file = "../test/client_certs/server.crt"
` + ca,
}
a.Start(t)
defer a.Shutdown()
health := &structs.HealthCheck{
Node: "foo",
CheckID: "tls",
Name: "tls check",
Status: api.HealthCritical,
}
url := fmt.Sprintf("https://%s/v1/agent/self", a.srv.ln.Addr().String())
chk := &structs.CheckType{
HTTP: url,
Interval: 20 * time.Millisecond,
}
err := a.AddCheck(health, chk, false, "", ConfigSourceLocal)
if err != nil {
t.Fatalf("err: %v", err)
}
retry.Run(t, func(r *retry.R) {
status := a.State.Checks()["tls"]
if status.Status != api.HealthPassing {
r.Fatalf("bad: %v", status.Status)
}
if !strings.Contains(status.Output, "200 OK") {
r.Fatalf("bad: %v", status.Output)
}
})
}
// We need to test both methods of passing the CA info to ensure that
// we propagate all the fields correctly. All the other fields are
// covered by the HCL in the test run function.
tests := []struct {
desc string
config string
}{
{"ca_file", `ca_file = "../test/client_certs/rootca.crt"`},
{"ca_path", `ca_path = "../test/client_certs/path"`},
}
for _, tt := range tests {
t.Run(tt.desc, func(t *testing.T) {
run(t, tt.config)
})
}
}
func TestAgent_updateTTLCheck(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), "")
defer a.Shutdown()
health := &structs.HealthCheck{
Node: "foo",
CheckID: "mem",
Name: "memory util",
Status: api.HealthCritical,
}
chk := &structs.CheckType{
TTL: 15 * time.Second,
}
// Add check and update it.
err := a.AddCheck(health, chk, false, "", ConfigSourceLocal)
if err != nil {
t.Fatalf("err: %v", err)
}
if err := a.updateTTLCheck("mem", api.HealthPassing, "foo"); err != nil {
t.Fatalf("err: %v", err)
}
// Ensure we have a check mapping.
status := a.State.Checks()["mem"]
if status.Status != api.HealthPassing {
t.Fatalf("bad: %v", status)
}
if status.Output != "foo" {
t.Fatalf("bad: %v", status)
}
}
func TestAgent_PersistService(t *testing.T) {
t.Parallel()
dataDir := testutil.TempDir(t, "agent") // we manage the data dir
cfg := `
server = false
bootstrap = false
data_dir = "` + dataDir + `"
`
a := &TestAgent{Name: t.Name(), HCL: cfg, DataDir: dataDir}
a.Start(t)
defer os.RemoveAll(dataDir)
defer a.Shutdown()
svc := &structs.NodeService{
ID: "redis",
Service: "redis",
Tags: []string{"foo"},
Port: 8000,
}
file := filepath.Join(a.Config.DataDir, servicesDir, stringHash(svc.ID))
// Check is not persisted unless requested
if err := a.AddService(svc, nil, false, "", ConfigSourceLocal); err != nil {
t.Fatalf("err: %v", err)
}
if _, err := os.Stat(file); err == nil {
t.Fatalf("should not persist")
}
// Persists to file if requested
if err := a.AddService(svc, nil, true, "mytoken", ConfigSourceLocal); err != nil {
t.Fatalf("err: %v", err)
}
if _, err := os.Stat(file); err != nil {
t.Fatalf("err: %s", err)
}
expected, err := json.Marshal(persistedService{
Token: "mytoken",
Service: svc,
})
if err != nil {
t.Fatalf("err: %s", err)
}
content, err := ioutil.ReadFile(file)
if err != nil {
t.Fatalf("err: %s", err)
}
if !bytes.Equal(expected, content) {
t.Fatalf("bad: %s", string(content))
}
// Updates service definition on disk
svc.Port = 8001
if err := a.AddService(svc, nil, true, "mytoken", ConfigSourceLocal); err != nil {
t.Fatalf("err: %v", err)
}
expected, err = json.Marshal(persistedService{
Token: "mytoken",
Service: svc,
})
if err != nil {
t.Fatalf("err: %s", err)
}
content, err = ioutil.ReadFile(file)
if err != nil {
t.Fatalf("err: %s", err)
}
if !bytes.Equal(expected, content) {
t.Fatalf("bad: %s", string(content))
}
a.Shutdown()
// Should load it back during later start
a2 := &TestAgent{Name: t.Name(), HCL: cfg, DataDir: dataDir}
a2.Start(t)
defer a2.Shutdown()
restored := a2.State.ServiceState(svc.ID)
if restored == nil {
t.Fatalf("service %q missing", svc.ID)
}
if got, want := restored.Token, "mytoken"; got != want {
t.Fatalf("got token %q want %q", got, want)
}
if got, want := restored.Service.Port, 8001; got != want {
t.Fatalf("got port %d want %d", got, want)
}
}
func TestAgent_persistedService_compat(t *testing.T) {
t.Parallel()
// Tests backwards compatibility of persisted services from pre-0.5.1
a := NewTestAgent(t, t.Name(), "")
defer a.Shutdown()
svc := &structs.NodeService{
ID: "redis",
Service: "redis",
Tags: []string{"foo"},
Port: 8000,
Weights: &structs.Weights{Passing: 1, Warning: 1},
}
// Encode the NodeService directly. This is what previous versions
// would serialize to the file (without the wrapper)
encoded, err := json.Marshal(svc)
if err != nil {
t.Fatalf("err: %s", err)
}
// Write the content to the file
file := filepath.Join(a.Config.DataDir, servicesDir, stringHash(svc.ID))
if err := os.MkdirAll(filepath.Dir(file), 0700); err != nil {
t.Fatalf("err: %s", err)
}
if err := ioutil.WriteFile(file, encoded, 0600); err != nil {
t.Fatalf("err: %s", err)
}
// Load the services
if err := a.loadServices(a.Config); err != nil {
t.Fatalf("err: %s", err)
}
// Ensure the service was restored
services := a.State.Services()
result, ok := services["redis"]
if !ok {
t.Fatalf("missing service")
}
require.Equal(t, svc, result)
}
func TestAgent_PurgeService(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), "")
defer a.Shutdown()
svc := &structs.NodeService{
ID: "redis",
Service: "redis",
Tags: []string{"foo"},
Port: 8000,
}
file := filepath.Join(a.Config.DataDir, servicesDir, stringHash(svc.ID))
if err := a.AddService(svc, nil, true, "", ConfigSourceLocal); err != nil {
t.Fatalf("err: %v", err)
}
// Not removed
if err := a.RemoveService(svc.ID, false); err != nil {
t.Fatalf("err: %s", err)
}
if _, err := os.Stat(file); err != nil {
t.Fatalf("err: %s", err)
}
// Re-add the service
if err := a.AddService(svc, nil, true, "", ConfigSourceLocal); err != nil {
t.Fatalf("err: %v", err)
}
// Removed
if err := a.RemoveService(svc.ID, true); err != nil {
t.Fatalf("err: %s", err)
}
if _, err := os.Stat(file); !os.IsNotExist(err) {
t.Fatalf("bad: %#v", err)
}
}
func TestAgent_PurgeServiceOnDuplicate(t *testing.T) {
t.Parallel()
dataDir := testutil.TempDir(t, "agent") // we manage the data dir
cfg := `
data_dir = "` + dataDir + `"
server = false
bootstrap = false
`
a := &TestAgent{Name: t.Name(), HCL: cfg, DataDir: dataDir}
a.Start(t)
defer a.Shutdown()
defer os.RemoveAll(dataDir)
svc1 := &structs.NodeService{
ID: "redis",
Service: "redis",
Tags: []string{"foo"},
Port: 8000,
}
// First persist the service
if err := a.AddService(svc1, nil, true, "", ConfigSourceLocal); err != nil {
t.Fatalf("err: %v", err)
}
a.Shutdown()
// Try bringing the agent back up with the service already
// existing in the config
a2 := &TestAgent{Name: t.Name() + "-a2", HCL: cfg + `
service = {
id = "redis"
name = "redis"
tags = ["bar"]
port = 9000
}
`, DataDir: dataDir}
a2.Start(t)
defer a2.Shutdown()
file := filepath.Join(a.Config.DataDir, servicesDir, stringHash(svc1.ID))
if _, err := os.Stat(file); err == nil {
t.Fatalf("should have removed persisted service")
}
result := a2.State.Service("redis")
if result == nil {
t.Fatalf("missing service registration")
}
if !reflect.DeepEqual(result.Tags, []string{"bar"}) || result.Port != 9000 {
t.Fatalf("bad: %#v", result)
}
}
func TestAgent_PersistProxy(t *testing.T) {
t.Parallel()
dataDir := testutil.TempDir(t, "agent") // we manage the data dir
cfg := `
server = false
bootstrap = false
data_dir = "` + dataDir + `"
`
a := &TestAgent{Name: t.Name(), HCL: cfg, DataDir: dataDir}
a.Start(t)
defer os.RemoveAll(dataDir)
defer a.Shutdown()
require := require.New(t)
assert := assert.New(t)
// Add a service to proxy (precondition for AddProxy)
svc1 := &structs.NodeService{
ID: "redis",
Service: "redis",
Tags: []string{"foo"},
Port: 8000,
}
require.NoError(a.AddService(svc1, nil, true, "", ConfigSourceLocal))
// Add a proxy for it
proxy := &structs.ConnectManagedProxy{
TargetServiceID: svc1.ID,
Command: []string{"/bin/sleep", "3600"},
}
file := filepath.Join(a.Config.DataDir, proxyDir, stringHash("redis-proxy"))
// Proxy is not persisted unless requested
require.NoError(a.AddProxy(proxy, false, false, "", ConfigSourceLocal))
_, err := os.Stat(file)
require.Error(err, "proxy should not be persisted")
// Proxy is persisted if requested
require.NoError(a.AddProxy(proxy, true, false, "", ConfigSourceLocal))
_, err = os.Stat(file)
require.NoError(err, "proxy should be persisted")
content, err := ioutil.ReadFile(file)
require.NoError(err)
var gotProxy persistedProxy
require.NoError(json.Unmarshal(content, &gotProxy))
assert.Equal(proxy.Command, gotProxy.Proxy.Command)
assert.Len(gotProxy.ProxyToken, 36) // sanity check for UUID
// Updates service definition on disk
proxy.Config = map[string]interface{}{
"foo": "bar",
}
require.NoError(a.AddProxy(proxy, true, false, "", ConfigSourceLocal))
content, err = ioutil.ReadFile(file)
require.NoError(err)
require.NoError(json.Unmarshal(content, &gotProxy))
assert.Equal(gotProxy.Proxy.Command, proxy.Command)
assert.Equal(gotProxy.Proxy.Config, proxy.Config)
assert.Len(gotProxy.ProxyToken, 36) // sanity check for UUID
a.Shutdown()
// Should load it back during later start
a2 := &TestAgent{Name: t.Name(), HCL: cfg, DataDir: dataDir}
a2.Start(t)
defer a2.Shutdown()
restored := a2.State.Proxy("redis-proxy")
require.NotNil(restored)
assert.Equal(gotProxy.ProxyToken, restored.ProxyToken)
// Ensure the port that was auto picked at random is the same again
assert.Equal(gotProxy.Proxy.ProxyService.Port, restored.Proxy.ProxyService.Port)
assert.Equal(gotProxy.Proxy.Command, restored.Proxy.Command)
}
func TestAgent_PurgeProxy(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), "")
defer a.Shutdown()
require := require.New(t)
// Add a service to proxy (precondition for AddProxy)
svc1 := &structs.NodeService{
ID: "redis",
Service: "redis",
Tags: []string{"foo"},
Port: 8000,
}
require.NoError(a.AddService(svc1, nil, true, "", ConfigSourceLocal))
// Add a proxy for it
proxy := &structs.ConnectManagedProxy{
TargetServiceID: svc1.ID,
Command: []string{"/bin/sleep", "3600"},
}
proxyID := "redis-proxy"
require.NoError(a.AddProxy(proxy, true, false, "", ConfigSourceLocal))
file := filepath.Join(a.Config.DataDir, proxyDir, stringHash("redis-proxy"))
// Not removed
require.NoError(a.RemoveProxy(proxyID, false))
_, err := os.Stat(file)
require.NoError(err, "should not be removed")
// Re-add the proxy
require.NoError(a.AddProxy(proxy, true, false, "", ConfigSourceLocal))
// Removed
require.NoError(a.RemoveProxy(proxyID, true))
_, err = os.Stat(file)
require.Error(err, "should be removed")
}
func TestAgent_PurgeProxyOnDuplicate(t *testing.T) {
t.Parallel()
dataDir := testutil.TempDir(t, "agent") // we manage the data dir
cfg := `
data_dir = "` + dataDir + `"
server = false
bootstrap = false
`
a := &TestAgent{Name: t.Name(), HCL: cfg, DataDir: dataDir}
a.Start(t)
defer a.Shutdown()
defer os.RemoveAll(dataDir)
require := require.New(t)
// Add a service to proxy (precondition for AddProxy)
svc1 := &structs.NodeService{
ID: "redis",
Service: "redis",
Tags: []string{"foo"},
Port: 8000,
}
require.NoError(a.AddService(svc1, nil, true, "", ConfigSourceLocal))
// Add a proxy for it
proxy := &structs.ConnectManagedProxy{
TargetServiceID: svc1.ID,
Command: []string{"/bin/sleep", "3600"},
}
proxyID := "redis-proxy"
require.NoError(a.AddProxy(proxy, true, false, "", ConfigSourceLocal))
a.Shutdown()
// Try bringing the agent back up with the service already
// existing in the config
a2 := &TestAgent{Name: t.Name() + "-a2", HCL: cfg + `
service = {
id = "redis"
name = "redis"
tags = ["bar"]
port = 9000
connect {
proxy {
command = ["/bin/sleep", "3600"]
}
}
}
`, DataDir: dataDir}
a2.Start(t)
defer a2.Shutdown()
file := filepath.Join(a.Config.DataDir, proxyDir, stringHash(proxyID))
_, err := os.Stat(file)
require.NoError(err, "Config File based proxies should be persisted too")
result := a2.State.Proxy(proxyID)
require.NotNil(result)
require.Equal(proxy.Command, result.Proxy.Command)
}
func TestAgent_PersistCheck(t *testing.T) {
t.Parallel()
dataDir := testutil.TempDir(t, "agent") // we manage the data dir
cfg := `
data_dir = "` + dataDir + `"
server = false
bootstrap = false
enable_script_checks = true
`
a := &TestAgent{Name: t.Name(), HCL: cfg, DataDir: dataDir}
a.Start(t)
defer os.RemoveAll(dataDir)
defer a.Shutdown()
check := &structs.HealthCheck{
Node: a.config.NodeName,
CheckID: "mem",
Name: "memory check",
Status: api.HealthPassing,
}
chkType := &structs.CheckType{
ScriptArgs: []string{"/bin/true"},
Interval: 10 * time.Second,
}
file := filepath.Join(a.Config.DataDir, checksDir, checkIDHash(check.CheckID))
// Not persisted if not requested
if err := a.AddCheck(check, chkType, false, "", ConfigSourceLocal); err != nil {
t.Fatalf("err: %v", err)
}
if _, err := os.Stat(file); err == nil {
t.Fatalf("should not persist")
}
// Should persist if requested
if err := a.AddCheck(check, chkType, true, "mytoken", ConfigSourceLocal); err != nil {
t.Fatalf("err: %v", err)
}
if _, err := os.Stat(file); err != nil {
t.Fatalf("err: %s", err)
}
expected, err := json.Marshal(persistedCheck{
Check: check,
ChkType: chkType,
Token: "mytoken",
})
if err != nil {
t.Fatalf("err: %s", err)
}
content, err := ioutil.ReadFile(file)
if err != nil {
t.Fatalf("err: %s", err)
}
if !bytes.Equal(expected, content) {
t.Fatalf("bad: %s", string(content))
}
// Updates the check definition on disk
check.Name = "mem1"
if err := a.AddCheck(check, chkType, true, "mytoken", ConfigSourceLocal); err != nil {
t.Fatalf("err: %v", err)
}
expected, err = json.Marshal(persistedCheck{
Check: check,
ChkType: chkType,
Token: "mytoken",
})
if err != nil {
t.Fatalf("err: %s", err)
}
content, err = ioutil.ReadFile(file)
if err != nil {
t.Fatalf("err: %s", err)
}
if !bytes.Equal(expected, content) {
t.Fatalf("bad: %s", string(content))
}
a.Shutdown()
// Should load it back during later start
a2 := &TestAgent{Name: t.Name() + "-a2", HCL: cfg, DataDir: dataDir}
a2.Start(t)
defer a2.Shutdown()
result := a2.State.Check(check.CheckID)
if result == nil {
t.Fatalf("bad: %#v", a2.State.Checks())
}
if result.Status != api.HealthCritical {
t.Fatalf("bad: %#v", result)
}
if result.Name != "mem1" {
t.Fatalf("bad: %#v", result)
}
// Should have restored the monitor
if _, ok := a2.checkMonitors[check.CheckID]; !ok {
t.Fatalf("bad: %#v", a2.checkMonitors)
}
if a2.State.CheckState(check.CheckID).Token != "mytoken" {
t.Fatalf("bad: %s", a2.State.CheckState(check.CheckID).Token)
}
}
func TestAgent_PurgeCheck(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), "")
defer a.Shutdown()
check := &structs.HealthCheck{
Node: a.Config.NodeName,
CheckID: "mem",
Name: "memory check",
Status: api.HealthPassing,
}
file := filepath.Join(a.Config.DataDir, checksDir, checkIDHash(check.CheckID))
if err := a.AddCheck(check, nil, true, "", ConfigSourceLocal); err != nil {
t.Fatalf("err: %v", err)
}
// Not removed
if err := a.RemoveCheck(check.CheckID, false); err != nil {
t.Fatalf("err: %s", err)
}
if _, err := os.Stat(file); err != nil {
t.Fatalf("err: %s", err)
}
// Removed
if err := a.RemoveCheck(check.CheckID, true); err != nil {
t.Fatalf("err: %s", err)
}
if _, err := os.Stat(file); !os.IsNotExist(err) {
t.Fatalf("bad: %#v", err)
}
}
func TestAgent_PurgeCheckOnDuplicate(t *testing.T) {
t.Parallel()
nodeID := NodeID()
dataDir := testutil.TempDir(t, "agent")
a := NewTestAgent(t, t.Name(), `
node_id = "`+nodeID+`"
node_name = "Node `+nodeID+`"
data_dir = "`+dataDir+`"
server = false
bootstrap = false
enable_script_checks = true
`)
defer os.RemoveAll(dataDir)
defer a.Shutdown()
check1 := &structs.HealthCheck{
Node: a.Config.NodeName,
CheckID: "mem",
Name: "memory check",
Status: api.HealthPassing,
}
// First persist the check
if err := a.AddCheck(check1, nil, true, "", ConfigSourceLocal); err != nil {
t.Fatalf("err: %v", err)
}
a.Shutdown()
// Start again with the check registered in config
a2 := NewTestAgent(t, t.Name()+"-a2", `
node_id = "`+nodeID+`"
node_name = "Node `+nodeID+`"
data_dir = "`+dataDir+`"
server = false
bootstrap = false
enable_script_checks = true
check = {
id = "mem"
name = "memory check"
notes = "my cool notes"
args = ["/bin/check-redis.py"]
interval = "30s"
}
`)
defer a2.Shutdown()
file := filepath.Join(dataDir, checksDir, checkIDHash(check1.CheckID))
if _, err := os.Stat(file); err == nil {
t.Fatalf("should have removed persisted check")
}
result := a2.State.Check("mem")
if result == nil {
t.Fatalf("missing check registration")
}
expected := &structs.HealthCheck{
Node: a2.Config.NodeName,
CheckID: "mem",
Name: "memory check",
Status: api.HealthCritical,
Notes: "my cool notes",
}
if got, want := result, expected; !verify.Values(t, "", got, want) {
t.FailNow()
}
}
func TestAgent_loadChecks_token(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), `
check = {
id = "rabbitmq"
name = "rabbitmq"
token = "abc123"
ttl = "10s"
}
`)
defer a.Shutdown()
checks := a.State.Checks()
if _, ok := checks["rabbitmq"]; !ok {
t.Fatalf("missing check")
}
if token := a.State.CheckToken("rabbitmq"); token != "abc123" {
t.Fatalf("bad: %s", token)
}
}
func TestAgent_unloadChecks(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), "")
defer a.Shutdown()
// First register a service
svc := &structs.NodeService{
ID: "redis",
Service: "redis",
Tags: []string{"foo"},
Port: 8000,
}
if err := a.AddService(svc, nil, false, "", ConfigSourceLocal); err != nil {
t.Fatalf("err: %v", err)
}
// Register a check
check1 := &structs.HealthCheck{
Node: a.Config.NodeName,
CheckID: "service:redis",
Name: "redischeck",
Status: api.HealthPassing,
ServiceID: "redis",
ServiceName: "redis",
}
if err := a.AddCheck(check1, nil, false, "", ConfigSourceLocal); err != nil {
t.Fatalf("err: %s", err)
}
found := false
for check := range a.State.Checks() {
if check == check1.CheckID {
found = true
break
}
}
if !found {
t.Fatalf("check should have been registered")
}
// Unload all of the checks
if err := a.unloadChecks(); err != nil {
t.Fatalf("err: %s", err)
}
// Make sure it was unloaded
for check := range a.State.Checks() {
if check == check1.CheckID {
t.Fatalf("should have unloaded checks")
}
}
}
func TestAgent_loadServices_token(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), `
service = {
id = "rabbitmq"
name = "rabbitmq"
port = 5672
token = "abc123"
}
`)
defer a.Shutdown()
services := a.State.Services()
if _, ok := services["rabbitmq"]; !ok {
t.Fatalf("missing service")
}
if token := a.State.ServiceToken("rabbitmq"); token != "abc123" {
t.Fatalf("bad: %s", token)
}
}
func TestAgent_loadServices_sidecar(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), `
service = {
id = "rabbitmq"
name = "rabbitmq"
port = 5672
token = "abc123"
connect = {
sidecar_service {}
}
}
`)
defer a.Shutdown()
services := a.State.Services()
if _, ok := services["rabbitmq"]; !ok {
t.Fatalf("missing service")
}
if token := a.State.ServiceToken("rabbitmq"); token != "abc123" {
t.Fatalf("bad: %s", token)
}
if _, ok := services["rabbitmq-sidecar-proxy"]; !ok {
t.Fatalf("missing service")
}
if token := a.State.ServiceToken("rabbitmq-sidecar-proxy"); token != "abc123" {
t.Fatalf("bad: %s", token)
}
// Sanity check rabbitmq service should NOT have sidecar info in state since
// it's done it's job and should be a registration syntax sugar only.
assert.Nil(t, services["rabbitmq"].Connect.SidecarService)
}
func TestAgent_loadServices_sidecarSeparateToken(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), `
service = {
id = "rabbitmq"
name = "rabbitmq"
port = 5672
token = "abc123"
connect = {
sidecar_service {
token = "789xyz"
}
}
}
`)
defer a.Shutdown()
services := a.State.Services()
if _, ok := services["rabbitmq"]; !ok {
t.Fatalf("missing service")
}
if token := a.State.ServiceToken("rabbitmq"); token != "abc123" {
t.Fatalf("bad: %s", token)
}
if _, ok := services["rabbitmq-sidecar-proxy"]; !ok {
t.Fatalf("missing service")
}
if token := a.State.ServiceToken("rabbitmq-sidecar-proxy"); token != "789xyz" {
t.Fatalf("bad: %s", token)
}
}
func TestAgent_loadServices_sidecarInheritMeta(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), `
service = {
id = "rabbitmq"
name = "rabbitmq"
port = 5672
tags = ["a", "b"],
meta = {
environment = "prod"
}
connect = {
sidecar_service {
}
}
}
`)
defer a.Shutdown()
services := a.State.Services()
svc, ok := services["rabbitmq"]
require.True(t, ok, "missing service")
require.Len(t, svc.Tags, 2)
require.Len(t, svc.Meta, 1)
sidecar, ok := services["rabbitmq-sidecar-proxy"]
require.True(t, ok, "missing sidecar service")
require.ElementsMatch(t, svc.Tags, sidecar.Tags)
require.Len(t, sidecar.Meta, 1)
meta, ok := sidecar.Meta["environment"]
require.True(t, ok, "missing sidecar service meta")
require.Equal(t, "prod", meta)
}
func TestAgent_loadServices_sidecarOverrideMeta(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), `
service = {
id = "rabbitmq"
name = "rabbitmq"
port = 5672
tags = ["a", "b"],
meta = {
environment = "prod"
}
connect = {
sidecar_service {
tags = ["foo"],
meta = {
environment = "qa"
}
}
}
}
`)
defer a.Shutdown()
services := a.State.Services()
svc, ok := services["rabbitmq"]
require.True(t, ok, "missing service")
require.Len(t, svc.Tags, 2)
require.Len(t, svc.Meta, 1)
sidecar, ok := services["rabbitmq-sidecar-proxy"]
require.True(t, ok, "missing sidecar service")
require.Len(t, sidecar.Tags, 1)
require.Equal(t, "foo", sidecar.Tags[0])
require.Len(t, sidecar.Meta, 1)
meta, ok := sidecar.Meta["environment"]
require.True(t, ok, "missing sidecar service meta")
require.Equal(t, "qa", meta)
}
func TestAgent_unloadServices(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), "")
defer a.Shutdown()
svc := &structs.NodeService{
ID: "redis",
Service: "redis",
Tags: []string{"foo"},
Port: 8000,
}
// Register the service
if err := a.AddService(svc, nil, false, "", ConfigSourceLocal); err != nil {
t.Fatalf("err: %v", err)
}
found := false
for id := range a.State.Services() {
if id == svc.ID {
found = true
break
}
}
if !found {
t.Fatalf("should have registered service")
}
// Unload all services
if err := a.unloadServices(); err != nil {
t.Fatalf("err: %s", err)
}
if len(a.State.Services()) != 0 {
t.Fatalf("should have unloaded services")
}
}
func TestAgent_loadProxies(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), `
service = {
id = "rabbitmq"
name = "rabbitmq"
port = 5672
token = "abc123"
connect {
proxy {
config {
bind_port = 1234
}
}
}
}
`)
defer a.Shutdown()
services := a.State.Services()
if _, ok := services["rabbitmq"]; !ok {
t.Fatalf("missing service")
}
if token := a.State.ServiceToken("rabbitmq"); token != "abc123" {
t.Fatalf("bad: %s", token)
}
if _, ok := services["rabbitmq-proxy"]; !ok {
t.Fatalf("missing proxy service")
}
if token := a.State.ServiceToken("rabbitmq-proxy"); token != "abc123" {
t.Fatalf("bad: %s", token)
}
proxies := a.State.Proxies()
if _, ok := proxies["rabbitmq-proxy"]; !ok {
t.Fatalf("missing proxy")
}
}
func TestAgent_loadProxies_nilProxy(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), `
service = {
id = "rabbitmq"
name = "rabbitmq"
port = 5672
token = "abc123"
connect {
}
}
`)
defer a.Shutdown()
services := a.State.Services()
require.Contains(t, services, "rabbitmq")
require.Equal(t, "abc123", a.State.ServiceToken("rabbitmq"))
require.NotContains(t, services, "rabbitme-proxy")
require.Empty(t, a.State.Proxies())
}
func TestAgent_unloadProxies(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), `
service = {
id = "rabbitmq"
name = "rabbitmq"
port = 5672
token = "abc123"
connect {
proxy {
config {
bind_port = 1234
}
}
}
}
`)
defer a.Shutdown()
// Sanity check it's there
require.NotNil(t, a.State.Proxy("rabbitmq-proxy"))
// Unload all proxies
if err := a.unloadProxies(); err != nil {
t.Fatalf("err: %s", err)
}
if len(a.State.Proxies()) != 0 {
t.Fatalf("should have unloaded proxies")
}
}
func TestAgent_Service_MaintenanceMode(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), "")
defer a.Shutdown()
svc := &structs.NodeService{
ID: "redis",
Service: "redis",
Tags: []string{"foo"},
Port: 8000,
}
// Register the service
if err := a.AddService(svc, nil, false, "", ConfigSourceLocal); err != nil {
t.Fatalf("err: %v", err)
}
// Enter maintenance mode for the service
if err := a.EnableServiceMaintenance("redis", "broken", "mytoken"); err != nil {
t.Fatalf("err: %s", err)
}
// Make sure the critical health check was added
checkID := serviceMaintCheckID("redis")
check, ok := a.State.Checks()[checkID]
if !ok {
t.Fatalf("should have registered critical maintenance check")
}
// Check that the token was used to register the check
if token := a.State.CheckToken(checkID); token != "mytoken" {
t.Fatalf("expected 'mytoken', got: '%s'", token)
}
// Ensure the reason was set in notes
if check.Notes != "broken" {
t.Fatalf("bad: %#v", check)
}
// Leave maintenance mode
if err := a.DisableServiceMaintenance("redis"); err != nil {
t.Fatalf("err: %s", err)
}
// Ensure the check was deregistered
if _, ok := a.State.Checks()[checkID]; ok {
t.Fatalf("should have deregistered maintenance check")
}
// Enter service maintenance mode without providing a reason
if err := a.EnableServiceMaintenance("redis", "", ""); err != nil {
t.Fatalf("err: %s", err)
}
// Ensure the check was registered with the default notes
check, ok = a.State.Checks()[checkID]
if !ok {
t.Fatalf("should have registered critical check")
}
if check.Notes != defaultServiceMaintReason {
t.Fatalf("bad: %#v", check)
}
}
func TestAgent_Service_Reap(t *testing.T) {
// t.Parallel() // timing test. no parallel
a := NewTestAgent(t, t.Name(), `
check_reap_interval = "50ms"
check_deregister_interval_min = "0s"
`)
defer a.Shutdown()
testrpc.WaitForTestAgent(t, a.RPC, "dc1")
svc := &structs.NodeService{
ID: "redis",
Service: "redis",
Tags: []string{"foo"},
Port: 8000,
}
chkTypes := []*structs.CheckType{
&structs.CheckType{
Status: api.HealthPassing,
TTL: 25 * time.Millisecond,
DeregisterCriticalServiceAfter: 200 * time.Millisecond,
},
}
// Register the service.
if err := a.AddService(svc, chkTypes, false, "", ConfigSourceLocal); err != nil {
t.Fatalf("err: %v", err)
}
// Make sure it's there and there's no critical check yet.
if _, ok := a.State.Services()["redis"]; !ok {
t.Fatalf("should have redis service")
}
if checks := a.State.CriticalCheckStates(); len(checks) > 0 {
t.Fatalf("should not have critical checks")
}
// Wait for the check TTL to fail but before the check is reaped.
time.Sleep(100 * time.Millisecond)
if _, ok := a.State.Services()["redis"]; !ok {
t.Fatalf("should have redis service")
}
if checks := a.State.CriticalCheckStates(); len(checks) != 1 {
t.Fatalf("should have a critical check")
}
// Pass the TTL.
if err := a.updateTTLCheck("service:redis", api.HealthPassing, "foo"); err != nil {
t.Fatalf("err: %v", err)
}
if _, ok := a.State.Services()["redis"]; !ok {
t.Fatalf("should have redis service")
}
if checks := a.State.CriticalCheckStates(); len(checks) > 0 {
t.Fatalf("should not have critical checks")
}
// Wait for the check TTL to fail again.
time.Sleep(100 * time.Millisecond)
if _, ok := a.State.Services()["redis"]; !ok {
t.Fatalf("should have redis service")
}
if checks := a.State.CriticalCheckStates(); len(checks) != 1 {
t.Fatalf("should have a critical check")
}
// Wait for the reap.
time.Sleep(400 * time.Millisecond)
if _, ok := a.State.Services()["redis"]; ok {
t.Fatalf("redis service should have been reaped")
}
if checks := a.State.CriticalCheckStates(); len(checks) > 0 {
t.Fatalf("should not have critical checks")
}
}
func TestAgent_Service_NoReap(t *testing.T) {
// t.Parallel() // timing test. no parallel
a := NewTestAgent(t, t.Name(), `
check_reap_interval = "50ms"
check_deregister_interval_min = "0s"
`)
defer a.Shutdown()
svc := &structs.NodeService{
ID: "redis",
Service: "redis",
Tags: []string{"foo"},
Port: 8000,
}
chkTypes := []*structs.CheckType{
&structs.CheckType{
Status: api.HealthPassing,
TTL: 25 * time.Millisecond,
},
}
// Register the service.
if err := a.AddService(svc, chkTypes, false, "", ConfigSourceLocal); err != nil {
t.Fatalf("err: %v", err)
}
// Make sure it's there and there's no critical check yet.
if _, ok := a.State.Services()["redis"]; !ok {
t.Fatalf("should have redis service")
}
if checks := a.State.CriticalCheckStates(); len(checks) > 0 {
t.Fatalf("should not have critical checks")
}
// Wait for the check TTL to fail.
time.Sleep(200 * time.Millisecond)
if _, ok := a.State.Services()["redis"]; !ok {
t.Fatalf("should have redis service")
}
if checks := a.State.CriticalCheckStates(); len(checks) != 1 {
t.Fatalf("should have a critical check")
}
// Wait a while and make sure it doesn't reap.
time.Sleep(200 * time.Millisecond)
if _, ok := a.State.Services()["redis"]; !ok {
t.Fatalf("should have redis service")
}
if checks := a.State.CriticalCheckStates(); len(checks) != 1 {
t.Fatalf("should have a critical check")
}
}
func TestAgent_AddService_restoresSnapshot(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), "")
defer a.Shutdown()
// First register a service
svc := &structs.NodeService{
ID: "redis",
Service: "redis",
Tags: []string{"foo"},
Port: 8000,
}
if err := a.AddService(svc, nil, false, "", ConfigSourceLocal); err != nil {
t.Fatalf("err: %v", err)
}
// Register a check
check1 := &structs.HealthCheck{
Node: a.Config.NodeName,
CheckID: "service:redis",
Name: "redischeck",
Status: api.HealthPassing,
ServiceID: "redis",
ServiceName: "redis",
}
if err := a.AddCheck(check1, nil, false, "", ConfigSourceLocal); err != nil {
t.Fatalf("err: %s", err)
}
// Re-registering the service preserves the state of the check
chkTypes := []*structs.CheckType{&structs.CheckType{TTL: 30 * time.Second}}
if err := a.AddService(svc, chkTypes, false, "", ConfigSourceLocal); err != nil {
t.Fatalf("err: %s", err)
}
check, ok := a.State.Checks()["service:redis"]
if !ok {
t.Fatalf("missing check")
}
if check.Status != api.HealthPassing {
t.Fatalf("bad: %s", check.Status)
}
}
func TestAgent_AddCheck_restoresSnapshot(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), "")
defer a.Shutdown()
// First register a service
svc := &structs.NodeService{
ID: "redis",
Service: "redis",
Tags: []string{"foo"},
Port: 8000,
}
if err := a.AddService(svc, nil, false, "", ConfigSourceLocal); err != nil {
t.Fatalf("err: %v", err)
}
// Register a check
check1 := &structs.HealthCheck{
Node: a.Config.NodeName,
CheckID: "service:redis",
Name: "redischeck",
Status: api.HealthPassing,
ServiceID: "redis",
ServiceName: "redis",
}
if err := a.AddCheck(check1, nil, false, "", ConfigSourceLocal); err != nil {
t.Fatalf("err: %s", err)
}
// Re-registering the check preserves its state
check1.Status = ""
if err := a.AddCheck(check1, &structs.CheckType{TTL: 30 * time.Second}, false, "", ConfigSourceLocal); err != nil {
t.Fatalf("err: %s", err)
}
check, ok := a.State.Checks()["service:redis"]
if !ok {
t.Fatalf("missing check")
}
if check.Status != api.HealthPassing {
t.Fatalf("bad: %s", check.Status)
}
}
func TestAgent_NodeMaintenanceMode(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), "")
defer a.Shutdown()
// Enter maintenance mode for the node
a.EnableNodeMaintenance("broken", "mytoken")
// Make sure the critical health check was added
check, ok := a.State.Checks()[structs.NodeMaint]
if !ok {
t.Fatalf("should have registered critical node check")
}
// Check that the token was used to register the check
if token := a.State.CheckToken(structs.NodeMaint); token != "mytoken" {
t.Fatalf("expected 'mytoken', got: '%s'", token)
}
// Ensure the reason was set in notes
if check.Notes != "broken" {
t.Fatalf("bad: %#v", check)
}
// Leave maintenance mode
a.DisableNodeMaintenance()
// Ensure the check was deregistered
if _, ok := a.State.Checks()[structs.NodeMaint]; ok {
t.Fatalf("should have deregistered critical node check")
}
// Enter maintenance mode without passing a reason
a.EnableNodeMaintenance("", "")
// Make sure the check was registered with the default note
check, ok = a.State.Checks()[structs.NodeMaint]
if !ok {
t.Fatalf("should have registered critical node check")
}
if check.Notes != defaultNodeMaintReason {
t.Fatalf("bad: %#v", check)
}
}
func TestAgent_checkStateSnapshot(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), "")
defer a.Shutdown()
// First register a service
svc := &structs.NodeService{
ID: "redis",
Service: "redis",
Tags: []string{"foo"},
Port: 8000,
}
if err := a.AddService(svc, nil, false, "", ConfigSourceLocal); err != nil {
t.Fatalf("err: %v", err)
}
// Register a check
check1 := &structs.HealthCheck{
Node: a.Config.NodeName,
CheckID: "service:redis",
Name: "redischeck",
Status: api.HealthPassing,
ServiceID: "redis",
ServiceName: "redis",
}
if err := a.AddCheck(check1, nil, true, "", ConfigSourceLocal); err != nil {
t.Fatalf("err: %s", err)
}
// Snapshot the state
snap := a.snapshotCheckState()
// Unload all of the checks
if err := a.unloadChecks(); err != nil {
t.Fatalf("err: %s", err)
}
// Reload the checks
if err := a.loadChecks(a.Config); err != nil {
t.Fatalf("err: %s", err)
}
// Restore the state
a.restoreCheckState(snap)
// Search for the check
out, ok := a.State.Checks()[check1.CheckID]
if !ok {
t.Fatalf("check should have been registered")
}
// Make sure state was restored
if out.Status != api.HealthPassing {
t.Fatalf("should have restored check state")
}
}
func TestAgent_loadChecks_checkFails(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), "")
defer a.Shutdown()
// Persist a health check with an invalid service ID
check := &structs.HealthCheck{
Node: a.Config.NodeName,
CheckID: "service:redis",
Name: "redischeck",
Status: api.HealthPassing,
ServiceID: "nope",
}
if err := a.persistCheck(check, nil); err != nil {
t.Fatalf("err: %s", err)
}
// Check to make sure the check was persisted
checkHash := checkIDHash(check.CheckID)
checkPath := filepath.Join(a.Config.DataDir, checksDir, checkHash)
if _, err := os.Stat(checkPath); err != nil {
t.Fatalf("err: %s", err)
}
// Try loading the checks from the persisted files
if err := a.loadChecks(a.Config); err != nil {
t.Fatalf("err: %s", err)
}
// Ensure the erroneous check was purged
if _, err := os.Stat(checkPath); err == nil {
t.Fatalf("should have purged check")
}
}
func TestAgent_persistCheckState(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), "")
defer a.Shutdown()
// Create the TTL check to persist
check := &checks.CheckTTL{
CheckID: "check1",
TTL: 10 * time.Minute,
}
// Persist some check state for the check
err := a.persistCheckState(check, api.HealthCritical, "nope")
if err != nil {
t.Fatalf("err: %s", err)
}
// Check the persisted file exists and has the content
file := filepath.Join(a.Config.DataDir, checkStateDir, stringHash("check1"))
buf, err := ioutil.ReadFile(file)
if err != nil {
t.Fatalf("err: %s", err)
}
// Decode the state
var p persistedCheckState
if err := json.Unmarshal(buf, &p); err != nil {
t.Fatalf("err: %s", err)
}
// Check the fields
if p.CheckID != "check1" {
t.Fatalf("bad: %#v", p)
}
if p.Output != "nope" {
t.Fatalf("bad: %#v", p)
}
if p.Status != api.HealthCritical {
t.Fatalf("bad: %#v", p)
}
// Check the expiration time was set
if p.Expires < time.Now().Unix() {
t.Fatalf("bad: %#v", p)
}
}
func TestAgent_loadCheckState(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), "")
defer a.Shutdown()
// Create a check whose state will expire immediately
check := &checks.CheckTTL{
CheckID: "check1",
TTL: 0,
}
// Persist the check state
err := a.persistCheckState(check, api.HealthPassing, "yup")
if err != nil {
t.Fatalf("err: %s", err)
}
// Try to load the state
health := &structs.HealthCheck{
CheckID: "check1",
Status: api.HealthCritical,
}
if err := a.loadCheckState(health); err != nil {
t.Fatalf("err: %s", err)
}
// Should not have restored the status due to expiration
if health.Status != api.HealthCritical {
t.Fatalf("bad: %#v", health)
}
if health.Output != "" {
t.Fatalf("bad: %#v", health)
}
// Should have purged the state
file := filepath.Join(a.Config.DataDir, checksDir, stringHash("check1"))
if _, err := os.Stat(file); !os.IsNotExist(err) {
t.Fatalf("should have purged state")
}
// Set a TTL which will not expire before we check it
check.TTL = time.Minute
err = a.persistCheckState(check, api.HealthPassing, "yup")
if err != nil {
t.Fatalf("err: %s", err)
}
// Try to load
if err := a.loadCheckState(health); err != nil {
t.Fatalf("err: %s", err)
}
// Should have restored
if health.Status != api.HealthPassing {
t.Fatalf("bad: %#v", health)
}
if health.Output != "yup" {
t.Fatalf("bad: %#v", health)
}
}
func TestAgent_purgeCheckState(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), "")
defer a.Shutdown()
// No error if the state does not exist
if err := a.purgeCheckState("check1"); err != nil {
t.Fatalf("err: %s", err)
}
// Persist some state to the data dir
check := &checks.CheckTTL{
CheckID: "check1",
TTL: time.Minute,
}
err := a.persistCheckState(check, api.HealthPassing, "yup")
if err != nil {
t.Fatalf("err: %s", err)
}
// Purge the check state
if err := a.purgeCheckState("check1"); err != nil {
t.Fatalf("err: %s", err)
}
// Removed the file
file := filepath.Join(a.Config.DataDir, checkStateDir, stringHash("check1"))
if _, err := os.Stat(file); !os.IsNotExist(err) {
t.Fatalf("should have removed file")
}
}
func TestAgent_GetCoordinate(t *testing.T) {
t.Parallel()
check := func(server bool) {
a := NewTestAgent(t, t.Name(), `
server = true
`)
defer a.Shutdown()
// This doesn't verify the returned coordinate, but it makes
// sure that the agent chooses the correct Serf instance,
// depending on how it's configured as a client or a server.
// If it chooses the wrong one, this will crash.
if _, err := a.GetLANCoordinate(); err != nil {
t.Fatalf("err: %s", err)
}
}
check(true)
check(false)
}
func TestAgent_reloadWatches(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), "")
defer a.Shutdown()
// Normal watch with http addr set, should succeed
newConf := *a.config
newConf.Watches = []map[string]interface{}{
{
"type": "key",
"key": "asdf",
"args": []interface{}{"ls"},
},
}
if err := a.reloadWatches(&newConf); err != nil {
t.Fatalf("bad: %s", err)
}
// Should fail to reload with connect watches
newConf.Watches = []map[string]interface{}{
{
"type": "connect_roots",
"key": "asdf",
"args": []interface{}{"ls"},
},
}
if err := a.reloadWatches(&newConf); err == nil || !strings.Contains(err.Error(), "not allowed in agent config") {
t.Fatalf("bad: %s", err)
}
// Should still succeed with only HTTPS addresses
newConf.HTTPSAddrs = newConf.HTTPAddrs
newConf.HTTPAddrs = make([]net.Addr, 0)
newConf.Watches = []map[string]interface{}{
{
"type": "key",
"key": "asdf",
"args": []interface{}{"ls"},
},
}
if err := a.reloadWatches(&newConf); err != nil {
t.Fatalf("bad: %s", err)
}
// Should fail to reload with no http or https addrs
newConf.HTTPSAddrs = make([]net.Addr, 0)
newConf.Watches = []map[string]interface{}{
{
"type": "key",
"key": "asdf",
"args": []interface{}{"ls"},
},
}
if err := a.reloadWatches(&newConf); err == nil || !strings.Contains(err.Error(), "watch plans require an HTTP or HTTPS endpoint") {
t.Fatalf("bad: %s", err)
}
}
func TestAgent_reloadWatchesHTTPS(t *testing.T) {
t.Parallel()
a := TestAgent{Name: t.Name(), UseTLS: true}
a.Start(t)
defer a.Shutdown()
// Normal watch with http addr set, should succeed
newConf := *a.config
newConf.Watches = []map[string]interface{}{
{
"type": "key",
"key": "asdf",
"args": []interface{}{"ls"},
},
}
if err := a.reloadWatches(&newConf); err != nil {
t.Fatalf("bad: %s", err)
}
}
func TestAgent_AddProxy(t *testing.T) {
t.Parallel()
tests := []struct {
desc string
proxy, wantProxy *structs.ConnectManagedProxy
wantTCPCheck string
wantErr bool
}{
{
desc: "basic proxy adding, unregistered service",
proxy: &structs.ConnectManagedProxy{
ExecMode: structs.ProxyExecModeDaemon,
Command: []string{"consul", "connect", "proxy"},
Config: map[string]interface{}{
"foo": "bar",
},
TargetServiceID: "db", // non-existent service.
},
// Target service must be registered.
wantErr: true,
},
{
desc: "basic proxy adding, registered service",
proxy: &structs.ConnectManagedProxy{
ExecMode: structs.ProxyExecModeDaemon,
Command: []string{"consul", "connect", "proxy"},
Config: map[string]interface{}{
"foo": "bar",
},
TargetServiceID: "web",
},
// Proxy will inherit agent's 0.0.0.0 bind address but we can't check that
// so we should default to localhost in that case.
wantTCPCheck: "127.0.0.1:20000",
wantErr: false,
},
{
desc: "default global exec mode",
proxy: &structs.ConnectManagedProxy{
Command: []string{"consul", "connect", "proxy"},
TargetServiceID: "web",
},
wantProxy: &structs.ConnectManagedProxy{
ExecMode: structs.ProxyExecModeScript,
Command: []string{"consul", "connect", "proxy"},
TargetServiceID: "web",
},
wantTCPCheck: "127.0.0.1:20000",
wantErr: false,
},
{
desc: "default daemon command",
proxy: &structs.ConnectManagedProxy{
ExecMode: structs.ProxyExecModeDaemon,
TargetServiceID: "web",
},
wantProxy: &structs.ConnectManagedProxy{
ExecMode: structs.ProxyExecModeDaemon,
Command: []string{"foo", "bar"},
TargetServiceID: "web",
},
wantTCPCheck: "127.0.0.1:20000",
wantErr: false,
},
{
desc: "default script command",
proxy: &structs.ConnectManagedProxy{
ExecMode: structs.ProxyExecModeScript,
TargetServiceID: "web",
},
wantProxy: &structs.ConnectManagedProxy{
ExecMode: structs.ProxyExecModeScript,
Command: []string{"bar", "foo"},
TargetServiceID: "web",
},
wantTCPCheck: "127.0.0.1:20000",
wantErr: false,
},
{
desc: "managed proxy with custom bind port",
proxy: &structs.ConnectManagedProxy{
ExecMode: structs.ProxyExecModeDaemon,
Command: []string{"consul", "connect", "proxy"},
Config: map[string]interface{}{
"foo": "bar",
"bind_address": "127.10.10.10",
"bind_port": 1234,
},
TargetServiceID: "web",
},
wantTCPCheck: "127.10.10.10:1234",
wantErr: false,
},
{
// This test is necessary since JSON and HCL both will parse
// numbers as a float64.
desc: "managed proxy with custom bind port (float64)",
proxy: &structs.ConnectManagedProxy{
ExecMode: structs.ProxyExecModeDaemon,
Command: []string{"consul", "connect", "proxy"},
Config: map[string]interface{}{
"foo": "bar",
"bind_address": "127.10.10.10",
"bind_port": float64(1234),
},
TargetServiceID: "web",
},
wantTCPCheck: "127.10.10.10:1234",
wantErr: false,
},
{
desc: "managed proxy with overridden but unspecified ipv6 bind address",
proxy: &structs.ConnectManagedProxy{
ExecMode: structs.ProxyExecModeDaemon,
Command: []string{"consul", "connect", "proxy"},
Config: map[string]interface{}{
"foo": "bar",
"bind_address": "[::]",
},
TargetServiceID: "web",
},
wantTCPCheck: "127.0.0.1:20000",
wantErr: false,
},
{
desc: "managed proxy with overridden check address",
proxy: &structs.ConnectManagedProxy{
ExecMode: structs.ProxyExecModeDaemon,
Command: []string{"consul", "connect", "proxy"},
Config: map[string]interface{}{
"foo": "bar",
"tcp_check_address": "127.20.20.20",
},
TargetServiceID: "web",
},
wantTCPCheck: "127.20.20.20:20000",
wantErr: false,
},
{
desc: "managed proxy with disabled check",
proxy: &structs.ConnectManagedProxy{
ExecMode: structs.ProxyExecModeDaemon,
Command: []string{"consul", "connect", "proxy"},
Config: map[string]interface{}{
"foo": "bar",
"disable_tcp_check": true,
},
TargetServiceID: "web",
},
wantTCPCheck: "",
wantErr: false,
},
}
for _, tt := range tests {
t.Run(tt.desc, func(t *testing.T) {
require := require.New(t)
a := NewTestAgent(t, t.Name(), `
node_name = "node1"
# Explicit test because proxies inheriting this value must have a health
# check on a different IP.
bind_addr = "0.0.0.0"
connect {
proxy_defaults {
exec_mode = "script"
daemon_command = ["foo", "bar"]
script_command = ["bar", "foo"]
}
}
ports {
proxy_min_port = 20000
proxy_max_port = 20000
}
`)
defer a.Shutdown()
// Register a target service we can use
reg := &structs.NodeService{
Service: "web",
Port: 8080,
}
require.NoError(a.AddService(reg, nil, false, "", ConfigSourceLocal))
err := a.AddProxy(tt.proxy, false, false, "", ConfigSourceLocal)
if tt.wantErr {
require.Error(err)
return
}
require.NoError(err)
// Test the ID was created as we expect.
got := a.State.Proxy("web-proxy")
wantProxy := tt.wantProxy
if wantProxy == nil {
wantProxy = tt.proxy
}
wantProxy.ProxyService = got.Proxy.ProxyService
require.Equal(wantProxy, got.Proxy)
// Ensure a TCP check was created for the service.
gotCheck := a.State.Check("service:web-proxy")
if tt.wantTCPCheck == "" {
require.Nil(gotCheck)
} else {
require.NotNil(gotCheck)
require.Equal("Connect Proxy Listening", gotCheck.Name)
// Confusingly, a.State.Check("service:web-proxy") will return the state
// but it's Definition field will be empty. This appears to be expected
// when adding Checks as part of `AddService`. Notice how `AddService`
// tests in this file don't assert on that state but instead look at the
// agent's check state directly to ensure the right thing was registered.
// We'll do the same for now.
gotTCP, ok := a.checkTCPs["service:web-proxy"]
require.True(ok)
require.Equal(tt.wantTCPCheck, gotTCP.TCP)
require.Equal(10*time.Second, gotTCP.Interval)
}
})
}
}
func TestAgent_RemoveProxy(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), `
node_name = "node1"
`)
defer a.Shutdown()
require := require.New(t)
// Register a target service we can use
reg := &structs.NodeService{
Service: "web",
Port: 8080,
}
require.NoError(a.AddService(reg, nil, false, "", ConfigSourceLocal))
// Add a proxy for web
pReg := &structs.ConnectManagedProxy{
TargetServiceID: "web",
ExecMode: structs.ProxyExecModeDaemon,
Command: []string{"foo"},
}
require.NoError(a.AddProxy(pReg, false, false, "", ConfigSourceLocal))
// Test the ID was created as we expect.
gotProxy := a.State.Proxy("web-proxy")
require.NotNil(gotProxy)
err := a.RemoveProxy("web-proxy", false)
require.NoError(err)
gotProxy = a.State.Proxy("web-proxy")
require.Nil(gotProxy)
require.Nil(a.State.Service("web-proxy"), "web-proxy service")
// Removing invalid proxy should be an error
err = a.RemoveProxy("foobar", false)
require.Error(err)
}
func TestAgent_ReLoadProxiesFromConfig(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(),
`node_name = "node1"
`)
defer a.Shutdown()
require := require.New(t)
// Register a target service we can use
reg := &structs.NodeService{
Service: "web",
Port: 8080,
}
require.NoError(a.AddService(reg, nil, false, "", ConfigSourceLocal))
proxies := a.State.Proxies()
require.Len(proxies, 0)
config := config.RuntimeConfig{
Services: []*structs.ServiceDefinition{
&structs.ServiceDefinition{
Name: "web",
Connect: &structs.ServiceConnect{
Native: false,
Proxy: &structs.ServiceDefinitionConnectProxy{},
},
},
},
}
require.NoError(a.loadProxies(&config))
// ensure we loaded the proxy
proxies = a.State.Proxies()
require.Len(proxies, 1)
// store the auto-generated token
ptok := ""
pid := ""
for id := range proxies {
pid = id
ptok = proxies[id].ProxyToken
break
}
// reload the proxies and ensure the proxy token is the same
require.NoError(a.unloadProxies())
proxies = a.State.Proxies()
require.Len(proxies, 0)
require.NoError(a.loadProxies(&config))
proxies = a.State.Proxies()
require.Len(proxies, 1)
require.Equal(ptok, proxies[pid].ProxyToken)
// make sure when the config goes away so does the proxy
require.NoError(a.unloadProxies())
proxies = a.State.Proxies()
require.Len(proxies, 0)
// a.config contains no services or proxies
require.NoError(a.loadProxies(a.config))
proxies = a.State.Proxies()
require.Len(proxies, 0)
}
func TestAgent_SetupProxyManager(t *testing.T) {
t.Parallel()
dataDir := testutil.TempDir(t, "agent") // we manage the data dir
defer os.RemoveAll(dataDir)
hcl := `
ports { http = -1 }
data_dir = "` + dataDir + `"
`
c := TestConfig(
// randomPortsSource(false),
config.Source{Name: t.Name(), Format: "hcl", Data: hcl},
)
a, err := New(c)
require.NoError(t, err)
require.Error(t, a.setupProxyManager(), "setupProxyManager should fail with invalid HTTP API config")
hcl = `
ports { http = 8001 }
data_dir = "` + dataDir + `"
`
c = TestConfig(
// randomPortsSource(false),
config.Source{Name: t.Name(), Format: "hcl", Data: hcl},
)
a, err = New(c)
require.NoError(t, err)
require.NoError(t, a.setupProxyManager())
}
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