package agent import ( "fmt" "github.com/hashicorp/consul/consul" "github.com/hashicorp/consul/consul/structs" "github.com/hashicorp/consul/testutil" "io" "io/ioutil" "os" "sync/atomic" "testing" "time" ) var offset uint64 func nextConfig() *Config { idx := int(atomic.AddUint64(&offset, 1)) conf := DefaultConfig() conf.AdvertiseAddr = "127.0.0.1" conf.Bootstrap = true conf.Datacenter = "dc1" conf.NodeName = fmt.Sprintf("Node %d", idx) conf.BindAddr = "127.0.0.1" conf.Ports.DNS = 18600 + idx conf.Ports.HTTP = 18500 + idx conf.Ports.RPC = 18400 + idx conf.Ports.SerfLan = 18200 + idx conf.Ports.SerfWan = 18300 + idx conf.Ports.Server = 18100 + idx conf.Server = true conf.ACLDatacenter = "dc1" conf.ACLMasterToken = "root" cons := consul.DefaultConfig() conf.ConsulConfig = cons cons.SerfLANConfig.MemberlistConfig.SuspicionMult = 3 cons.SerfLANConfig.MemberlistConfig.ProbeTimeout = 100 * time.Millisecond cons.SerfLANConfig.MemberlistConfig.ProbeInterval = 100 * time.Millisecond cons.SerfLANConfig.MemberlistConfig.GossipInterval = 100 * time.Millisecond cons.SerfWANConfig.MemberlistConfig.SuspicionMult = 3 cons.SerfWANConfig.MemberlistConfig.ProbeTimeout = 100 * time.Millisecond cons.SerfWANConfig.MemberlistConfig.ProbeInterval = 100 * time.Millisecond cons.SerfWANConfig.MemberlistConfig.GossipInterval = 100 * time.Millisecond cons.RaftConfig.LeaderLeaseTimeout = 20 * time.Millisecond cons.RaftConfig.HeartbeatTimeout = 40 * time.Millisecond cons.RaftConfig.ElectionTimeout = 40 * time.Millisecond return conf } func makeAgentLog(t *testing.T, conf *Config, l io.Writer) (string, *Agent) { dir, err := ioutil.TempDir("", "agent") if err != nil { t.Fatalf(fmt.Sprintf("err: %v", err)) } conf.DataDir = dir agent, err := Create(conf, l) if err != nil { os.RemoveAll(dir) t.Fatalf(fmt.Sprintf("err: %v", err)) } return dir, agent } func makeAgent(t *testing.T, conf *Config) (string, *Agent) { return makeAgentLog(t, conf, nil) } func TestAgentStartStop(t *testing.T) { dir, agent := makeAgent(t, nextConfig()) defer os.RemoveAll(dir) defer agent.Shutdown() if err := agent.Leave(); err != nil { t.Fatalf("err: %v", err) } if err := agent.Shutdown(); err != nil { t.Fatalf("err: %v", err) } select { case <-agent.ShutdownCh(): default: t.Fatalf("should be closed") } } func TestAgent_RPCPing(t *testing.T) { dir, agent := makeAgent(t, nextConfig()) defer os.RemoveAll(dir) defer agent.Shutdown() var out struct{} if err := agent.RPC("Status.Ping", struct{}{}, &out); err != nil { t.Fatalf("err: %v", err) } } func TestAgent_AddService(t *testing.T) { dir, agent := makeAgent(t, nextConfig()) defer os.RemoveAll(dir) defer agent.Shutdown() srv := &structs.NodeService{ ID: "redis", Service: "redis", Tags: []string{"foo"}, Port: 8000, } chk := &CheckType{TTL: time.Minute} err := agent.AddService(srv, chk) if err != nil { t.Fatalf("err: %v", err) } // Ensure we have a state mapping if _, ok := agent.state.Services()["redis"]; !ok { t.Fatalf("missing redis service") } // Ensure we have a check mapping if _, ok := agent.state.Checks()["service:redis"]; !ok { t.Fatalf("missing redis check") } // Ensure a TTL is setup if _, ok := agent.checkTTLs["service:redis"]; !ok { t.Fatalf("missing redis check ttl") } } func TestAgent_RemoveService(t *testing.T) { dir, agent := makeAgent(t, nextConfig()) defer os.RemoveAll(dir) defer agent.Shutdown() // Remove a service that doesn't exist if err := agent.RemoveService("redis"); err != nil { t.Fatalf("err: %v", err) } // Remove the consul service if err := agent.RemoveService("consul"); err == nil { t.Fatalf("should have errored") } srv := &structs.NodeService{ ID: "redis", Service: "redis", Port: 8000, } chk := &CheckType{TTL: time.Minute} if err := agent.AddService(srv, chk); err != nil { t.Fatalf("err: %v", err) } // Remove the service if err := agent.RemoveService("redis"); err != nil { t.Fatalf("err: %v", err) } // Ensure we have a state mapping if _, ok := agent.state.Services()["redis"]; ok { t.Fatalf("have redis service") } // Ensure we have a check mapping if _, ok := agent.state.Checks()["service:redis"]; ok { t.Fatalf("have redis check") } // Ensure a TTL is setup if _, ok := agent.checkTTLs["service:redis"]; ok { t.Fatalf("have redis check ttl") } } func TestAgent_AddCheck(t *testing.T) { dir, agent := makeAgent(t, nextConfig()) defer os.RemoveAll(dir) defer agent.Shutdown() health := &structs.HealthCheck{ Node: "foo", CheckID: "mem", Name: "memory util", Status: structs.HealthCritical, } chk := &CheckType{ Script: "exit 0", Interval: 15 * time.Second, } err := agent.AddCheck(health, chk) if err != nil { t.Fatalf("err: %v", err) } // Ensure we have a check mapping if _, ok := agent.state.Checks()["mem"]; !ok { t.Fatalf("missing mem check") } // Ensure a TTL is setup if _, ok := agent.checkMonitors["mem"]; !ok { t.Fatalf("missing mem monitor") } } func TestAgent_AddCheck_MinInterval(t *testing.T) { dir, agent := makeAgent(t, nextConfig()) defer os.RemoveAll(dir) defer agent.Shutdown() health := &structs.HealthCheck{ Node: "foo", CheckID: "mem", Name: "memory util", Status: structs.HealthCritical, } chk := &CheckType{ Script: "exit 0", Interval: time.Microsecond, } err := agent.AddCheck(health, chk) if err != nil { t.Fatalf("err: %v", err) } // Ensure we have a check mapping if _, ok := agent.state.Checks()["mem"]; !ok { t.Fatalf("missing mem check") } // Ensure a TTL is setup if mon, ok := agent.checkMonitors["mem"]; !ok { t.Fatalf("missing mem monitor") } else if mon.Interval != MinInterval { t.Fatalf("bad mem monitor interval") } } func TestAgent_RemoveCheck(t *testing.T) { dir, agent := makeAgent(t, nextConfig()) defer os.RemoveAll(dir) defer agent.Shutdown() // Remove check that doesn't exist if err := agent.RemoveCheck("mem"); err != nil { t.Fatalf("err: %v", err) } health := &structs.HealthCheck{ Node: "foo", CheckID: "mem", Name: "memory util", Status: structs.HealthCritical, } chk := &CheckType{ Script: "exit 0", Interval: 15 * time.Second, } err := agent.AddCheck(health, chk) if err != nil { t.Fatalf("err: %v", err) } // Remove check if err := agent.RemoveCheck("mem"); err != nil { t.Fatalf("err: %v", err) } // Ensure we have a check mapping if _, ok := agent.state.Checks()["mem"]; ok { t.Fatalf("have mem check") } // Ensure a TTL is setup if _, ok := agent.checkMonitors["mem"]; ok { t.Fatalf("have mem monitor") } } func TestAgent_UpdateCheck(t *testing.T) { dir, agent := makeAgent(t, nextConfig()) defer os.RemoveAll(dir) defer agent.Shutdown() health := &structs.HealthCheck{ Node: "foo", CheckID: "mem", Name: "memory util", Status: structs.HealthCritical, } chk := &CheckType{ TTL: 15 * time.Second, } err := agent.AddCheck(health, chk) if err != nil { t.Fatalf("err: %v", err) } // Remove check if err := agent.UpdateCheck("mem", structs.HealthPassing, "foo"); err != nil { t.Fatalf("err: %v", err) } // Ensure we have a check mapping status := agent.state.Checks()["mem"] if status.Status != structs.HealthPassing { t.Fatalf("bad: %v", status) } if status.Output != "foo" { t.Fatalf("bad: %v", status) } } func TestAgent_ConsulService(t *testing.T) { dir, agent := makeAgent(t, nextConfig()) defer os.RemoveAll(dir) defer agent.Shutdown() testutil.WaitForLeader(t, agent.RPC, "dc1") // Consul service is registered services := agent.state.Services() if _, ok := services[consul.ConsulServiceID]; !ok { t.Fatalf("%s service should be registered", consul.ConsulServiceID) } // Perform anti-entropy on consul service if err := agent.state.syncService(consul.ConsulServiceID); err != nil { t.Fatalf("err: %s", err) } // Consul service should be in sync if !agent.state.serviceStatus[consul.ConsulServiceID].inSync { t.Fatalf("%s service should be in sync", consul.ConsulServiceID) } }