mirror of https://github.com/status-im/consul.git
693 lines
16 KiB
Go
693 lines
16 KiB
Go
package agent
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import (
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"bytes"
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"encoding/json"
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"fmt"
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"io"
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"io/ioutil"
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"os"
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"path/filepath"
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"reflect"
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"sync/atomic"
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"testing"
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"time"
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"github.com/hashicorp/consul/consul"
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"github.com/hashicorp/consul/consul/structs"
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"github.com/hashicorp/consul/testutil"
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)
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var offset uint64
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func nextConfig() *Config {
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idx := int(atomic.AddUint64(&offset, 1))
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conf := DefaultConfig()
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conf.AdvertiseAddr = "127.0.0.1"
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conf.Bootstrap = true
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conf.Datacenter = "dc1"
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conf.NodeName = fmt.Sprintf("Node %d", idx)
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conf.BindAddr = "127.0.0.1"
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conf.Ports.DNS = 19000 + idx
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conf.Ports.HTTP = 18800 + idx
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conf.Ports.RPC = 18600 + idx
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conf.Ports.SerfLan = 18200 + idx
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conf.Ports.SerfWan = 18400 + idx
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conf.Ports.Server = 18000 + idx
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conf.Server = true
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conf.ACLDatacenter = "dc1"
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conf.ACLMasterToken = "root"
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cons := consul.DefaultConfig()
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conf.ConsulConfig = cons
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cons.SerfLANConfig.MemberlistConfig.SuspicionMult = 3
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cons.SerfLANConfig.MemberlistConfig.ProbeTimeout = 100 * time.Millisecond
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cons.SerfLANConfig.MemberlistConfig.ProbeInterval = 100 * time.Millisecond
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cons.SerfLANConfig.MemberlistConfig.GossipInterval = 100 * time.Millisecond
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cons.SerfWANConfig.MemberlistConfig.SuspicionMult = 3
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cons.SerfWANConfig.MemberlistConfig.ProbeTimeout = 100 * time.Millisecond
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cons.SerfWANConfig.MemberlistConfig.ProbeInterval = 100 * time.Millisecond
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cons.SerfWANConfig.MemberlistConfig.GossipInterval = 100 * time.Millisecond
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cons.RaftConfig.LeaderLeaseTimeout = 20 * time.Millisecond
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cons.RaftConfig.HeartbeatTimeout = 40 * time.Millisecond
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cons.RaftConfig.ElectionTimeout = 40 * time.Millisecond
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return conf
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}
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func makeAgentLog(t *testing.T, conf *Config, l io.Writer) (string, *Agent) {
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dir, err := ioutil.TempDir("", "agent")
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if err != nil {
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t.Fatalf(fmt.Sprintf("err: %v", err))
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}
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conf.DataDir = dir
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agent, err := Create(conf, l)
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if err != nil {
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os.RemoveAll(dir)
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t.Fatalf(fmt.Sprintf("err: %v", err))
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}
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return dir, agent
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}
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func makeAgentKeyring(t *testing.T, conf *Config, key string) (string, *Agent) {
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dir, err := ioutil.TempDir("", "agent")
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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conf.DataDir = dir
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fileLAN := filepath.Join(dir, serfLANKeyring)
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if err := initKeyring(fileLAN, key); err != nil {
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t.Fatalf("err: %s", err)
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}
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fileWAN := filepath.Join(dir, serfWANKeyring)
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if err := initKeyring(fileWAN, key); err != nil {
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t.Fatalf("err: %s", err)
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}
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agent, err := Create(conf, nil)
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if err != nil {
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t.Fatalf("err: %s", err)
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}
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return dir, agent
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}
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func makeAgent(t *testing.T, conf *Config) (string, *Agent) {
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return makeAgentLog(t, conf, nil)
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}
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func TestAgentStartStop(t *testing.T) {
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dir, agent := makeAgent(t, nextConfig())
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defer os.RemoveAll(dir)
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defer agent.Shutdown()
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if err := agent.Leave(); err != nil {
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t.Fatalf("err: %v", err)
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}
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if err := agent.Shutdown(); err != nil {
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t.Fatalf("err: %v", err)
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}
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select {
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case <-agent.ShutdownCh():
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default:
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t.Fatalf("should be closed")
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}
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}
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func TestAgent_RPCPing(t *testing.T) {
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dir, agent := makeAgent(t, nextConfig())
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defer os.RemoveAll(dir)
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defer agent.Shutdown()
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var out struct{}
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if err := agent.RPC("Status.Ping", struct{}{}, &out); err != nil {
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t.Fatalf("err: %v", err)
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}
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}
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func TestAgent_AddService(t *testing.T) {
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dir, agent := makeAgent(t, nextConfig())
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defer os.RemoveAll(dir)
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defer agent.Shutdown()
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srv := &structs.NodeService{
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ID: "redis",
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Service: "redis",
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Tags: []string{"foo"},
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Port: 8000,
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}
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chk := &CheckType{
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TTL: time.Minute,
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Notes: "redis health check",
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}
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err := agent.AddService(srv, chk, false)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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// Ensure we have a state mapping
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if _, ok := agent.state.Services()["redis"]; !ok {
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t.Fatalf("missing redis service")
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}
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// Ensure we have a check mapping
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if _, ok := agent.state.Checks()["service:redis"]; !ok {
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t.Fatalf("missing redis check")
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}
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// Ensure a TTL is setup
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if _, ok := agent.checkTTLs["service:redis"]; !ok {
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t.Fatalf("missing redis check ttl")
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}
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// Ensure the notes are passed through
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if agent.state.Checks()["service:redis"].Notes == "" {
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t.Fatalf("missing redis check notes")
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}
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}
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func TestAgent_RemoveService(t *testing.T) {
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dir, agent := makeAgent(t, nextConfig())
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defer os.RemoveAll(dir)
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defer agent.Shutdown()
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// Remove a service that doesn't exist
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if err := agent.RemoveService("redis", false); err != nil {
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t.Fatalf("err: %v", err)
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}
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// Remove the consul service
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if err := agent.RemoveService("consul", false); err == nil {
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t.Fatalf("should have errored")
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}
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srv := &structs.NodeService{
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ID: "redis",
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Service: "redis",
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Port: 8000,
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}
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chk := &CheckType{TTL: time.Minute}
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if err := agent.AddService(srv, chk, false); err != nil {
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t.Fatalf("err: %v", err)
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}
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// Remove the service
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if err := agent.RemoveService("redis", false); err != nil {
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t.Fatalf("err: %v", err)
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}
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// Ensure we have a state mapping
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if _, ok := agent.state.Services()["redis"]; ok {
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t.Fatalf("have redis service")
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}
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// Ensure we have a check mapping
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if _, ok := agent.state.Checks()["service:redis"]; ok {
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t.Fatalf("have redis check")
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}
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// Ensure a TTL is setup
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if _, ok := agent.checkTTLs["service:redis"]; ok {
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t.Fatalf("have redis check ttl")
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}
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}
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func TestAgent_AddCheck(t *testing.T) {
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dir, agent := makeAgent(t, nextConfig())
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defer os.RemoveAll(dir)
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defer agent.Shutdown()
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health := &structs.HealthCheck{
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Node: "foo",
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CheckID: "mem",
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Name: "memory util",
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Status: structs.HealthCritical,
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}
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chk := &CheckType{
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Script: "exit 0",
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Interval: 15 * time.Second,
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}
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err := agent.AddCheck(health, chk, false)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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// Ensure we have a check mapping
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if _, ok := agent.state.Checks()["mem"]; !ok {
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t.Fatalf("missing mem check")
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}
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// Ensure a TTL is setup
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if _, ok := agent.checkMonitors["mem"]; !ok {
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t.Fatalf("missing mem monitor")
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}
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}
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func TestAgent_AddCheck_MinInterval(t *testing.T) {
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dir, agent := makeAgent(t, nextConfig())
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defer os.RemoveAll(dir)
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defer agent.Shutdown()
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health := &structs.HealthCheck{
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Node: "foo",
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CheckID: "mem",
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Name: "memory util",
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Status: structs.HealthCritical,
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}
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chk := &CheckType{
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Script: "exit 0",
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Interval: time.Microsecond,
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}
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err := agent.AddCheck(health, chk, false)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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// Ensure we have a check mapping
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if _, ok := agent.state.Checks()["mem"]; !ok {
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t.Fatalf("missing mem check")
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}
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// Ensure a TTL is setup
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if mon, ok := agent.checkMonitors["mem"]; !ok {
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t.Fatalf("missing mem monitor")
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} else if mon.Interval != MinInterval {
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t.Fatalf("bad mem monitor interval")
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}
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}
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func TestAgent_RemoveCheck(t *testing.T) {
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dir, agent := makeAgent(t, nextConfig())
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defer os.RemoveAll(dir)
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defer agent.Shutdown()
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// Remove check that doesn't exist
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if err := agent.RemoveCheck("mem", false); err != nil {
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t.Fatalf("err: %v", err)
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}
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health := &structs.HealthCheck{
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Node: "foo",
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CheckID: "mem",
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Name: "memory util",
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Status: structs.HealthCritical,
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}
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chk := &CheckType{
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Script: "exit 0",
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Interval: 15 * time.Second,
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}
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err := agent.AddCheck(health, chk, false)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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// Remove check
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if err := agent.RemoveCheck("mem", false); err != nil {
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t.Fatalf("err: %v", err)
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}
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// Ensure we have a check mapping
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if _, ok := agent.state.Checks()["mem"]; ok {
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t.Fatalf("have mem check")
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}
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// Ensure a TTL is setup
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if _, ok := agent.checkMonitors["mem"]; ok {
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t.Fatalf("have mem monitor")
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}
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}
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func TestAgent_UpdateCheck(t *testing.T) {
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dir, agent := makeAgent(t, nextConfig())
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defer os.RemoveAll(dir)
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defer agent.Shutdown()
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health := &structs.HealthCheck{
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Node: "foo",
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CheckID: "mem",
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Name: "memory util",
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Status: structs.HealthCritical,
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}
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chk := &CheckType{
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TTL: 15 * time.Second,
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}
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err := agent.AddCheck(health, chk, false)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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// Remove check
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if err := agent.UpdateCheck("mem", structs.HealthPassing, "foo"); err != nil {
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t.Fatalf("err: %v", err)
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}
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// Ensure we have a check mapping
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status := agent.state.Checks()["mem"]
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if status.Status != structs.HealthPassing {
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t.Fatalf("bad: %v", status)
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}
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if status.Output != "foo" {
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t.Fatalf("bad: %v", status)
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}
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}
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func TestAgent_ConsulService(t *testing.T) {
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dir, agent := makeAgent(t, nextConfig())
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defer os.RemoveAll(dir)
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defer agent.Shutdown()
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testutil.WaitForLeader(t, agent.RPC, "dc1")
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// Consul service is registered
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services := agent.state.Services()
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if _, ok := services[consul.ConsulServiceID]; !ok {
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t.Fatalf("%s service should be registered", consul.ConsulServiceID)
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}
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// Perform anti-entropy on consul service
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if err := agent.state.syncService(consul.ConsulServiceID); err != nil {
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t.Fatalf("err: %s", err)
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}
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// Consul service should be in sync
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if !agent.state.serviceStatus[consul.ConsulServiceID].inSync {
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t.Fatalf("%s service should be in sync", consul.ConsulServiceID)
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}
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}
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func TestAgent_PersistService(t *testing.T) {
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config := nextConfig()
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config.Server = false
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dir, agent := makeAgent(t, config)
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defer os.RemoveAll(dir)
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defer agent.Shutdown()
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svc := &structs.NodeService{
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ID: "redis",
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Service: "redis",
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Tags: []string{"foo"},
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Port: 8000,
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}
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file := filepath.Join(agent.config.DataDir, servicesDir, svc.ID)
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// Check is not persisted unless requested
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if err := agent.AddService(svc, nil, false); err != nil {
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t.Fatalf("err: %v", err)
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}
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if _, err := os.Stat(file); err == nil {
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t.Fatalf("should not persist")
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}
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// Persists to file if requested
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if err := agent.AddService(svc, nil, true); err != nil {
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t.Fatalf("err: %v", err)
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}
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if _, err := os.Stat(file); err != nil {
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t.Fatalf("err: %s", err)
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}
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expected, err := json.Marshal(svc)
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if err != nil {
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t.Fatalf("err: %s", err)
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}
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content, err := ioutil.ReadFile(file)
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if err != nil {
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t.Fatalf("err: %s", err)
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}
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if !bytes.Equal(expected, content) {
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t.Fatalf("bad: %s", string(content))
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}
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agent.Shutdown()
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// Should load it back during later start
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agent2, err := Create(config, nil)
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if err != nil {
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t.Fatalf("err: %s", err)
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}
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defer agent2.Shutdown()
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if _, ok := agent2.state.services[svc.ID]; !ok {
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t.Fatalf("bad: %#v", agent2.state.services)
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}
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}
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func TestAgent_PurgeService(t *testing.T) {
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config := nextConfig()
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dir, agent := makeAgent(t, config)
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defer os.RemoveAll(dir)
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defer agent.Shutdown()
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svc := &structs.NodeService{
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ID: "redis",
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Service: "redis",
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Tags: []string{"foo"},
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Port: 8000,
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}
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file := filepath.Join(agent.config.DataDir, servicesDir, svc.ID)
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if err := agent.AddService(svc, nil, true); err != nil {
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t.Fatalf("err: %v", err)
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}
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// Not removed
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if err := agent.RemoveService(svc.ID, false); err != nil {
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t.Fatalf("err: %s", err)
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}
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if _, err := os.Stat(file); err != nil {
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t.Fatalf("err: %s", err)
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}
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// Removed
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if err := agent.RemoveService(svc.ID, true); err != nil {
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t.Fatalf("err: %s", err)
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}
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if _, err := os.Stat(file); !os.IsNotExist(err) {
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t.Fatalf("bad: %#v", err)
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}
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}
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func TestAgent_PurgeServiceOnDuplicate(t *testing.T) {
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config := nextConfig()
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config.Server = false
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dir, agent := makeAgent(t, config)
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defer os.RemoveAll(dir)
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defer agent.Shutdown()
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svc1 := &structs.NodeService{
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ID: "redis",
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Service: "redis",
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Tags: []string{"foo"},
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Port: 8000,
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}
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// First persist the service
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if err := agent.AddService(svc1, nil, true); err != nil {
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t.Fatalf("err: %v", err)
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}
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agent.Shutdown()
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// Try bringing the agent back up with the service already
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// existing in the config
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svc2 := &ServiceDefinition{
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ID: "redis",
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Name: "redis",
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Tags: []string{"bar"},
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Port: 9000,
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}
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config.Services = []*ServiceDefinition{svc2}
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agent2, err := Create(config, nil)
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if err != nil {
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t.Fatalf("err: %s", err)
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}
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defer agent2.Shutdown()
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file := filepath.Join(agent.config.DataDir, servicesDir, svc1.ID)
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if _, err := os.Stat(file); err == nil {
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t.Fatalf("should have removed persisted service")
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}
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result, ok := agent2.state.services[svc2.ID]
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if !ok {
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t.Fatalf("missing service registration")
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}
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if !reflect.DeepEqual(result.Tags, svc2.Tags) || result.Port != svc2.Port {
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t.Fatalf("bad: %#v", result)
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}
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}
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func TestAgent_PersistCheck(t *testing.T) {
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config := nextConfig()
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config.Server = false
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dir, agent := makeAgent(t, config)
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defer os.RemoveAll(dir)
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defer agent.Shutdown()
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check := &structs.HealthCheck{
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Node: config.NodeName,
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CheckID: "service:redis1",
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Name: "redischeck",
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Status: structs.HealthPassing,
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ServiceID: "redis",
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ServiceName: "redis",
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}
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chkType := &CheckType{
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Script: "/bin/true",
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|
Interval: 10 * time.Second,
|
|
}
|
|
|
|
file := filepath.Join(agent.config.DataDir, checksDir, check.CheckID)
|
|
|
|
// Not persisted if not requested
|
|
if err := agent.AddCheck(check, chkType, false); 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 := agent.AddCheck(check, chkType, true); err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
|
|
if _, err := os.Stat(file); err != nil {
|
|
t.Fatalf("err: %s", err)
|
|
}
|
|
|
|
p := persistedCheck{check, chkType}
|
|
expected, err := json.Marshal(p)
|
|
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))
|
|
}
|
|
agent.Shutdown()
|
|
|
|
// Should load it back during later start
|
|
agent2, err := Create(config, nil)
|
|
if err != nil {
|
|
t.Fatalf("err: %s", err)
|
|
}
|
|
defer agent2.Shutdown()
|
|
|
|
result, ok := agent2.state.checks[p.Check.CheckID]
|
|
if !ok {
|
|
t.Fatalf("bad: %#v", agent2.state.checks)
|
|
}
|
|
if result.Status != structs.HealthCritical {
|
|
t.Fatalf("bad: %#v", result)
|
|
}
|
|
|
|
// Should have restored the monitor
|
|
if _, ok := agent2.checkMonitors[p.Check.CheckID]; !ok {
|
|
t.Fatalf("bad: %#v", agent2.checkMonitors)
|
|
}
|
|
}
|
|
|
|
func TestAgent_PurgeCheck(t *testing.T) {
|
|
config := nextConfig()
|
|
dir, agent := makeAgent(t, config)
|
|
defer os.RemoveAll(dir)
|
|
defer agent.Shutdown()
|
|
|
|
check := &structs.HealthCheck{
|
|
Node: config.NodeName,
|
|
CheckID: "service:redis1",
|
|
Name: "redischeck",
|
|
Status: structs.HealthPassing,
|
|
ServiceID: "redis",
|
|
ServiceName: "redis",
|
|
}
|
|
|
|
file := filepath.Join(agent.config.DataDir, checksDir, check.CheckID)
|
|
if err := agent.AddCheck(check, nil, true); err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
|
|
// Not removed
|
|
if err := agent.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 := agent.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) {
|
|
config := nextConfig()
|
|
config.Server = false
|
|
dir, agent := makeAgent(t, config)
|
|
defer os.RemoveAll(dir)
|
|
defer agent.Shutdown()
|
|
|
|
check1 := &structs.HealthCheck{
|
|
Node: config.NodeName,
|
|
CheckID: "service:redis1",
|
|
Name: "redischeck",
|
|
Status: structs.HealthPassing,
|
|
ServiceID: "redis",
|
|
ServiceName: "redis",
|
|
}
|
|
|
|
// First persist the check
|
|
if err := agent.AddCheck(check1, nil, true); err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
agent.Shutdown()
|
|
|
|
// Start again with the check registered in config
|
|
check2 := &CheckDefinition{
|
|
ID: "service:redis1",
|
|
Name: "redischeck",
|
|
Notes: "my cool notes",
|
|
CheckType: CheckType{
|
|
Script: "/bin/check-redis.py",
|
|
Interval: 30 * time.Second,
|
|
},
|
|
}
|
|
|
|
config.Checks = []*CheckDefinition{check2}
|
|
agent2, err := Create(config, nil)
|
|
if err != nil {
|
|
t.Fatalf("err: %s", err)
|
|
}
|
|
defer agent2.Shutdown()
|
|
|
|
file := filepath.Join(agent.config.DataDir, checksDir, check1.CheckID)
|
|
if _, err := os.Stat(file); err == nil {
|
|
t.Fatalf("should have removed persisted check")
|
|
}
|
|
result, ok := agent2.state.checks[check2.ID]
|
|
if !ok {
|
|
t.Fatalf("missing check registration")
|
|
}
|
|
expected := check2.HealthCheck(config.NodeName)
|
|
if !reflect.DeepEqual(expected, result) {
|
|
t.Fatalf("bad: %#v", result)
|
|
}
|
|
}
|