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open-consul
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open-consul/agent/agent_test.go

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package agent
import (
"bytes"
"context"
"crypto/tls"
"encoding/json"
"fmt"
"io/ioutil"
"net"
"net/http"
"net/http/httptest"
"os"
"path/filepath"
"reflect"
"strconv"
"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/sdk/freeport"
"github.com/hashicorp/consul/sdk/testutil"
"github.com/hashicorp/consul/sdk/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
wantErr 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: "",
wantErr: true,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
a := &TestAgent{Name: tt.name, HCL: tt.hcl}
err := a.Start()
if tt.wantErr {
if err == nil {
t.Fatal("expected error, got nil")
}
return // don't run the rest of the test
}
if !tt.wantErr && err != nil {
t.Fatal(err)
}
defer a.Shutdown()
cfg := a.consulConfig()
assert.Equal(t, tt.wantClusterID, cfg.CAConfig.ClusterID)
})
}
}
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()
testrpc.WaitForTestAgent(t, a.RPC, "dc1")
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_AddServices_AliasUpdateCheckNotReverted(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), `
node_name = "node1"
`)
defer a.Shutdown()
// It's tricky to get an UpdateCheck call to be timed properly so it lands
// right in the middle of an addServiceInternal call so we cheat a bit and
// rely upon alias checks to do that work for us. We add enough services
// that probabilistically one of them is going to end up properly in the
// critical section.
//
// The first number I picked here (10) surprisingly failed every time prior
// to PR #6144 solving the underlying problem.
const numServices = 10
services := make([]*structs.ServiceDefinition, numServices)
checkIDs := make([]types.CheckID, numServices)
for i := 0; i < numServices; i++ {
name := fmt.Sprintf("web-%d", i)
services[i] = &structs.ServiceDefinition{
ID: name,
Name: name,
Port: 8080 + i,
Checks: []*structs.CheckType{
&structs.CheckType{
Name: "alias-for-fake-service",
AliasService: "fake",
},
},
}
checkIDs[i] = types.CheckID("service:" + name)
}
// Add all of the services quickly as you might do from config file snippets.
for _, service := range services {
ns := service.NodeService()
chkTypes, err := service.CheckTypes()
require.NoError(t, err)
require.NoError(t, a.AddService(ns, chkTypes, false, service.Token, ConfigSourceLocal))
}
retry.Run(t, func(r *retry.R) {
gotChecks := a.State.Checks()
for id, check := range gotChecks {
require.Equal(r, "passing", check.Status, "check %q is wrong", id)
require.Equal(r, "No checks found.", check.Output, "check %q is wrong", id)
}
})
}
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
{
// add a service to remove
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)
}
// add another service that wont be affected
srv = &structs.NodeService{
ID: "mysql",
Service: "mysql",
Port: 3306,
}
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 the redis checks are removed
if _, ok := a.checkTTLs["service:redis:1"]; ok {
t.Fatalf("check ttl for redis:1 should be removed")
}
if check := a.State.Check(types.CheckID("service:redis:1")); check != nil {
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")
}
if check := a.State.Check(types.CheckID("service:redis:2")); check != nil {
t.Fatalf("check ttl for redis:2 should be removed")
}
// check the mysql service is unnafected
if _, ok := a.checkTTLs["service:mysql:1"]; !ok {
t.Fatalf("check ttl for mysql:1 should not be removed")
}
if check := a.State.Check(types.CheckID("service:mysql:1")); check == nil {
t.Fatalf("check ttl for mysql:1 should not be removed")
}
if _, ok := a.checkTTLs["service:mysql:2"]; !ok {
t.Fatalf("check ttl for mysql:2 should not be removed")
}
if check := a.State.Check(types.CheckID("service:mysql:2")); check == nil {
t.Fatalf("check ttl for mysql:2 should not 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_RestoreServiceWithAliasCheck(t *testing.T) {
// t.Parallel() don't even think about making this parallel
// This test is very contrived and tests for the absence of race conditions
// related to the implementation of alias checks. As such it is slow,
// serial, full of sleeps and retries, and not generally a great test to
// run all of the time.
//
// That said it made it incredibly easy to root out various race conditions
// quite successfully.
//
// The original set of races was between:
//
// - agent startup reloading Services and Checks from disk
// - API requests to also re-register those same Services and Checks
// - the goroutines for the as-yet-to-be-stopped CheckAlias goroutines
if os.Getenv("SLOWTEST") != "1" {
t.Skip("skipping slow test; set SLOWTEST=1 to run")
return
}
// We do this so that the agent logs and the informational messages from
// the test itself are interwoven properly.
logf := func(t *testing.T, a *TestAgent, format string, args ...interface{}) {
a.logger.Printf("[INFO] testharness: "+format, args...)
}
dataDir := testutil.TempDir(t, "agent") // we manage the data dir
cfg := `
server = false
bootstrap = false
enable_central_service_config = false
data_dir = "` + dataDir + `"
`
a := &TestAgent{Name: t.Name(), HCL: cfg, DataDir: dataDir}
a.LogOutput = testutil.TestWriter(t)
if err := a.Start(); err != nil {
t.Fatal(err)
}
defer os.RemoveAll(dataDir)
defer a.Shutdown()
testCtx, testCancel := context.WithCancel(context.Background())
defer testCancel()
testHTTPServer := launchHTTPCheckServer(t, testCtx)
defer testHTTPServer.Close()
registerServicesAndChecks := func(t *testing.T, a *TestAgent) {
// add one persistent service with a simple check
require.NoError(t, a.AddService(
&structs.NodeService{
ID: "ping",
Service: "ping",
Port: 8000,
},
[]*structs.CheckType{
&structs.CheckType{
HTTP: testHTTPServer.URL,
Method: "GET",
Interval: 5 * time.Second,
Timeout: 1 * time.Second,
},
},
true, "", ConfigSourceLocal,
))
// add one persistent sidecar service with an alias check in the manner
// of how sidecar_service would add it
require.NoError(t, a.AddService(
&structs.NodeService{
ID: "ping-sidecar-proxy",
Service: "ping-sidecar-proxy",
Port: 9000,
},
[]*structs.CheckType{
&structs.CheckType{
Name: "Connect Sidecar Aliasing ping",
AliasService: "ping",
},
},
true, "", ConfigSourceLocal,
))
}
retryUntilCheckState := func(t *testing.T, a *TestAgent, checkID string, expectedStatus string) {
t.Helper()
retry.Run(t, func(r *retry.R) {
chk := a.State.CheckState(types.CheckID(checkID))
if chk == nil {
r.Fatalf("check=%q is completely missing", checkID)
}
if chk.Check.Status != expectedStatus {
logf(t, a, "check=%q expected status %q but got %q", checkID, expectedStatus, chk.Check.Status)
r.Fatalf("check=%q expected status %q but got %q", checkID, expectedStatus, chk.Check.Status)
}
logf(t, a, "check %q has reached desired status %q", checkID, expectedStatus)
})
}
registerServicesAndChecks(t, a)
time.Sleep(1 * time.Second)
retryUntilCheckState(t, a, "service:ping", api.HealthPassing)
retryUntilCheckState(t, a, "service:ping-sidecar-proxy", api.HealthPassing)
logf(t, a, "==== POWERING DOWN ORIGINAL ====")
require.NoError(t, a.Shutdown())
time.Sleep(1 * time.Second)
futureHCL := cfg + `
node_id = "` + string(a.Config.NodeID) + `"
node_name = "` + a.Config.NodeName + `"
`
restartOnce := func(idx int, t *testing.T) {
t.Helper()
// Reload and retain former NodeID and data directory.
a2 := &TestAgent{Name: t.Name(), HCL: futureHCL, DataDir: dataDir}
a2.LogOutput = testutil.TestWriter(t)
if err := a2.Start(); err != nil {
t.Fatal(err)
}
defer a2.Shutdown()
a = nil
// reregister during standup; we use an adjustable timing to try and force a race
sleepDur := time.Duration(idx+1) * 500 * time.Millisecond
time.Sleep(sleepDur)
logf(t, a2, "re-registering checks and services after a delay of %v", sleepDur)
for i := 0; i < 20; i++ { // RACE RACE RACE!
registerServicesAndChecks(t, a2)
time.Sleep(50 * time.Millisecond)
}
time.Sleep(1 * time.Second)
retryUntilCheckState(t, a2, "service:ping", api.HealthPassing)
logf(t, a2, "giving the alias check a chance to notice...")
time.Sleep(5 * time.Second)
retryUntilCheckState(t, a2, "service:ping-sidecar-proxy", api.HealthPassing)
}
for i := 0; i < 20; i++ {
name := "restart-" + strconv.Itoa(i)
ok := t.Run(name, func(t *testing.T) {
restartOnce(i, t)
})
require.True(t, ok, name+" failed")
}
}
func launchHTTPCheckServer(t *testing.T, ctx context.Context) *httptest.Server {
ports := freeport.GetT(t, 1)
port := ports[0]
addr := net.JoinHostPort("127.0.0.1", strconv.Itoa(port))
var lc net.ListenConfig
listener, err := lc.Listen(ctx, "tcp", addr)
require.NoError(t, err)
handler := http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
w.WriteHeader(http.StatusOK)
_, _ = w.Write([]byte("OK\n"))
})
srv := &httptest.Server{
Listener: listener,
Config: &http.Server{Handler: handler},
}
srv.Start()
return srv
}
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,
}
if err := a.Start(); err != nil {
t.Fatal(err)
}
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()
checkBufSize := 100
health := &structs.HealthCheck{
Node: "foo",
CheckID: "mem",
Name: "memory util",
Status: api.HealthCritical,
}
chk := &structs.CheckType{
TTL: 15 * time.Second,
OutputMaxSize: checkBufSize,
}
// 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)
}
if err := a.updateTTLCheck("mem", api.HealthCritical, strings.Repeat("--bad-- ", 5*checkBufSize)); err != nil {
t.Fatalf("err: %v", err)
}
// Ensure we have a check mapping.
status = a.State.Checks()["mem"]
if status.Status != api.HealthCritical {
t.Fatalf("bad: %v", status)
}
if len(status.Output) > checkBufSize*2 {
t.Fatalf("bad: %v", len(status.Output))
}
}
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}
if err := a.Start(); err != nil {
t.Fatal(err)
}
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}
if err := a2.Start(); err != nil {
t.Fatal(err)
}
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}
if err := a.Start(); err != nil {
t.Fatal(err)
}
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}
if err := a2.Start(); err != nil {
t.Fatal(err)
}
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_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}
if err := a.Start(); err != nil {
t.Fatal(err)
}
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 != %s", string(content), expected)
}
// 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}
if err := a2.Start(); err != nil {
t.Fatal(err)
}
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_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 and restore the snapshot.
if err := a.loadChecks(a.Config, snap); err != nil {
t.Fatalf("err: %s", err)
}
// 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, nil); 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}
if err := a.Start(); err != nil {
t.Fatal(err)
}
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_loadTokens(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), `
acl = {
enabled = true
tokens = {
agent = "alfa"
agent_master = "bravo",
default = "charlie"
replication = "delta"
}
}
`)
defer a.Shutdown()
require := require.New(t)
tokensFullPath := filepath.Join(a.config.DataDir, tokensPath)
t.Run("original-configuration", func(t *testing.T) {
require.Equal("alfa", a.tokens.AgentToken())
require.Equal("bravo", a.tokens.AgentMasterToken())
require.Equal("charlie", a.tokens.UserToken())
require.Equal("delta", a.tokens.ReplicationToken())
})
t.Run("updated-configuration", func(t *testing.T) {
cfg := &config.RuntimeConfig{
ACLToken: "echo",
ACLAgentToken: "foxtrot",
ACLAgentMasterToken: "golf",
ACLReplicationToken: "hotel",
}
// ensures no error for missing persisted tokens file
require.NoError(a.loadTokens(cfg))
require.Equal("echo", a.tokens.UserToken())
require.Equal("foxtrot", a.tokens.AgentToken())
require.Equal("golf", a.tokens.AgentMasterToken())
require.Equal("hotel", a.tokens.ReplicationToken())
})
t.Run("persisted-tokens", func(t *testing.T) {
cfg := &config.RuntimeConfig{
ACLToken: "echo",
ACLAgentToken: "foxtrot",
ACLAgentMasterToken: "golf",
ACLReplicationToken: "hotel",
}
tokens := `{
"agent" : "india",
"agent_master" : "juliett",
"default": "kilo",
"replication" : "lima"
}`
require.NoError(ioutil.WriteFile(tokensFullPath, []byte(tokens), 0600))
require.NoError(a.loadTokens(cfg))
// no updates since token persistence is not enabled
require.Equal("echo", a.tokens.UserToken())
require.Equal("foxtrot", a.tokens.AgentToken())
require.Equal("golf", a.tokens.AgentMasterToken())
require.Equal("hotel", a.tokens.ReplicationToken())
a.config.ACLEnableTokenPersistence = true
require.NoError(a.loadTokens(cfg))
require.Equal("india", a.tokens.AgentToken())
require.Equal("juliett", a.tokens.AgentMasterToken())
require.Equal("kilo", a.tokens.UserToken())
require.Equal("lima", a.tokens.ReplicationToken())
})
t.Run("persisted-tokens-override", func(t *testing.T) {
tokens := `{
"agent" : "mike",
"agent_master" : "november",
"default": "oscar",
"replication" : "papa"
}`
cfg := &config.RuntimeConfig{
ACLToken: "quebec",
ACLAgentToken: "romeo",
ACLAgentMasterToken: "sierra",
ACLReplicationToken: "tango",
}
require.NoError(ioutil.WriteFile(tokensFullPath, []byte(tokens), 0600))
require.NoError(a.loadTokens(cfg))
require.Equal("mike", a.tokens.AgentToken())
require.Equal("november", a.tokens.AgentMasterToken())
require.Equal("oscar", a.tokens.UserToken())
require.Equal("papa", a.tokens.ReplicationToken())
})
t.Run("partial-persisted", func(t *testing.T) {
tokens := `{
"agent" : "uniform",
"agent_master" : "victor"
}`
cfg := &config.RuntimeConfig{
ACLToken: "whiskey",
ACLAgentToken: "xray",
ACLAgentMasterToken: "yankee",
ACLReplicationToken: "zulu",
}
require.NoError(ioutil.WriteFile(tokensFullPath, []byte(tokens), 0600))
require.NoError(a.loadTokens(cfg))
require.Equal("uniform", a.tokens.AgentToken())
require.Equal("victor", a.tokens.AgentMasterToken())
require.Equal("whiskey", a.tokens.UserToken())
require.Equal("zulu", a.tokens.ReplicationToken())
})
t.Run("persistence-error-not-json", func(t *testing.T) {
cfg := &config.RuntimeConfig{
ACLToken: "one",
ACLAgentToken: "two",
ACLAgentMasterToken: "three",
ACLReplicationToken: "four",
}
require.NoError(ioutil.WriteFile(tokensFullPath, []byte{0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08}, 0600))
err := a.loadTokens(cfg)
require.Error(err)
require.Equal("one", a.tokens.UserToken())
require.Equal("two", a.tokens.AgentToken())
require.Equal("three", a.tokens.AgentMasterToken())
require.Equal("four", a.tokens.ReplicationToken())
})
t.Run("persistence-error-wrong-top-level", func(t *testing.T) {
cfg := &config.RuntimeConfig{
ACLToken: "alfa",
ACLAgentToken: "bravo",
ACLAgentMasterToken: "charlie",
ACLReplicationToken: "foxtrot",
}
require.NoError(ioutil.WriteFile(tokensFullPath, []byte("[1,2,3]"), 0600))
err := a.loadTokens(cfg)
require.Error(err)
require.Equal("alfa", a.tokens.UserToken())
require.Equal("bravo", a.tokens.AgentToken())
require.Equal("charlie", a.tokens.AgentMasterToken())
require.Equal("foxtrot", a.tokens.ReplicationToken())
})
}
func TestAgent_ReloadConfigOutgoingRPCConfig(t *testing.T) {
t.Parallel()
dataDir := testutil.TempDir(t, "agent") // we manage the data dir
defer os.RemoveAll(dataDir)
hcl := `
data_dir = "` + dataDir + `"
verify_outgoing = true
ca_file = "../test/ca/root.cer"
cert_file = "../test/key/ourdomain.cer"
key_file = "../test/key/ourdomain.key"
verify_server_hostname = false
`
a := NewTestAgent(t, t.Name(), hcl)
defer a.Shutdown()
tlsConf := a.tlsConfigurator.OutgoingRPCConfig()
require.True(t, tlsConf.InsecureSkipVerify)
require.Len(t, tlsConf.ClientCAs.Subjects(), 1)
require.Len(t, tlsConf.RootCAs.Subjects(), 1)
hcl = `
data_dir = "` + dataDir + `"
verify_outgoing = true
ca_path = "../test/ca_path"
cert_file = "../test/key/ourdomain.cer"
key_file = "../test/key/ourdomain.key"
verify_server_hostname = true
`
c := TestConfig(config.Source{Name: t.Name(), Format: "hcl", Data: hcl})
require.NoError(t, a.ReloadConfig(c))
tlsConf = a.tlsConfigurator.OutgoingRPCConfig()
require.False(t, tlsConf.InsecureSkipVerify)
require.Len(t, tlsConf.RootCAs.Subjects(), 2)
require.Len(t, tlsConf.ClientCAs.Subjects(), 2)
}
func TestAgent_ReloadConfigIncomingRPCConfig(t *testing.T) {
t.Parallel()
dataDir := testutil.TempDir(t, "agent") // we manage the data dir
defer os.RemoveAll(dataDir)
hcl := `
data_dir = "` + dataDir + `"
verify_outgoing = true
ca_file = "../test/ca/root.cer"
cert_file = "../test/key/ourdomain.cer"
key_file = "../test/key/ourdomain.key"
verify_server_hostname = false
`
a := NewTestAgent(t, t.Name(), hcl)
defer a.Shutdown()
tlsConf := a.tlsConfigurator.IncomingRPCConfig()
require.NotNil(t, tlsConf.GetConfigForClient)
tlsConf, err := tlsConf.GetConfigForClient(nil)
require.NoError(t, err)
require.NotNil(t, tlsConf)
require.True(t, tlsConf.InsecureSkipVerify)
require.Len(t, tlsConf.ClientCAs.Subjects(), 1)
require.Len(t, tlsConf.RootCAs.Subjects(), 1)
hcl = `
data_dir = "` + dataDir + `"
verify_outgoing = true
ca_path = "../test/ca_path"
cert_file = "../test/key/ourdomain.cer"
key_file = "../test/key/ourdomain.key"
verify_server_hostname = true
`
c := TestConfig(config.Source{Name: t.Name(), Format: "hcl", Data: hcl})
require.NoError(t, a.ReloadConfig(c))
tlsConf, err = tlsConf.GetConfigForClient(nil)
require.NoError(t, err)
require.False(t, tlsConf.InsecureSkipVerify)
require.Len(t, tlsConf.ClientCAs.Subjects(), 2)
require.Len(t, tlsConf.RootCAs.Subjects(), 2)
}
func TestAgent_ReloadConfigTLSConfigFailure(t *testing.T) {
t.Parallel()
dataDir := testutil.TempDir(t, "agent") // we manage the data dir
defer os.RemoveAll(dataDir)
hcl := `
data_dir = "` + dataDir + `"
verify_outgoing = true
ca_file = "../test/ca/root.cer"
cert_file = "../test/key/ourdomain.cer"
key_file = "../test/key/ourdomain.key"
verify_server_hostname = false
`
a := NewTestAgent(t, t.Name(), hcl)
defer a.Shutdown()
tlsConf := a.tlsConfigurator.IncomingRPCConfig()
hcl = `
data_dir = "` + dataDir + `"
verify_incoming = true
`
c := TestConfig(config.Source{Name: t.Name(), Format: "hcl", Data: hcl})
require.Error(t, a.ReloadConfig(c))
tlsConf, err := tlsConf.GetConfigForClient(nil)
require.NoError(t, err)
require.Equal(t, tls.NoClientCert, tlsConf.ClientAuth)
require.Len(t, tlsConf.ClientCAs.Subjects(), 1)
require.Len(t, tlsConf.RootCAs.Subjects(), 1)
}
func TestAgent_consulConfig_AutoEncryptAllowTLS(t *testing.T) {
t.Parallel()
dataDir := testutil.TempDir(t, "agent") // we manage the data dir
defer os.RemoveAll(dataDir)
hcl := `
data_dir = "` + dataDir + `"
verify_incoming = true
ca_file = "../test/ca/root.cer"
cert_file = "../test/key/ourdomain.cer"
key_file = "../test/key/ourdomain.key"
auto_encrypt { allow_tls = true }
`
a := NewTestAgent(t, t.Name(), hcl)
defer a.Shutdown()
require.True(t, a.consulConfig().AutoEncryptAllowTLS)
}
func TestAgent_consulConfig_RaftTrailingLogs(t *testing.T) {
t.Parallel()
hcl := `
raft_trailing_logs = 812345
`
a := NewTestAgent(t, t.Name(), hcl)
defer a.Shutdown()
require.Equal(t, uint64(812345), a.consulConfig().RaftConfig.TrailingLogs)
}
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