package agent import ( "bytes" "encoding/json" "fmt" "io/ioutil" "net" "net/http" "net/http/httptest" "os" "path/filepath" "reflect" "strings" "testing" "time" "github.com/stretchr/testify/assert" "github.com/hashicorp/consul/agent/checks" "github.com/hashicorp/consul/agent/connect" "github.com/hashicorp/consul/agent/structs" "github.com/hashicorp/consul/api" "github.com/hashicorp/consul/testutil" "github.com/hashicorp/consul/testutil/retry" "github.com/hashicorp/consul/types" uuid "github.com/hashicorp/go-uuid" "github.com/pascaldekloe/goe/verify" "github.com/stretchr/testify/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.Name(), "") time.Sleep(250 * time.Millisecond) a.Shutdown() }) } } func TestAgent_ConnectClusterIDConfig(t *testing.T) { tests := []struct { name string hcl string wantClusterID string wantPanic bool }{ { name: "default TestAgent has fixed cluster id", hcl: "", wantClusterID: connect.TestClusterID, }, { name: "no cluster ID specified remains null", hcl: "connect { enabled = true }", wantClusterID: "", }, { name: "non-UUID cluster_id is fatal", hcl: `connect { enabled = true ca_config { cluster_id = "fake-id" } }`, wantClusterID: "", wantPanic: true, }, } for _, tt := range tests { t.Run(tt.name, func(t *testing.T) { // Indirection to support panic recovery cleanly testFn := func() { a := &TestAgent{Name: "test", HCL: tt.hcl} a.ExpectConfigError = tt.wantPanic a.Start() defer a.Shutdown() cfg := a.consulConfig() assert.Equal(t, tt.wantClusterID, cfg.CAConfig.ClusterID) } if tt.wantPanic { require.Panics(t, testFn) } else { testFn() } }) } } func TestAgent_StartStop(t *testing.T) { t.Parallel() a := NewTestAgent(t.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.Name(), "") defer a.Shutdown() var out struct{} if err := a.RPC("Status.Ping", struct{}{}, &out); err != nil { t.Fatalf("err: %v", err) } } func TestAgent_TokenStore(t *testing.T) { t.Parallel() a := NewTestAgent(t.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.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.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_setupNodeID(t *testing.T) { t.Parallel() a := NewTestAgent(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.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.Name(), ` node_name = "node1" `) defer a.Shutdown() tests := []struct { desc string srv *structs.NodeService chkTypes []*structs.CheckType healthChks map[string]*structs.HealthCheck }{ { "one check", &structs.NodeService{ ID: "svcid1", Service: "svcname1", Tags: []string{"tag1"}, Port: 8100, }, []*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", Tags: []string{"tag2"}, Port: 8200, }, []*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, "") if err != nil { t.Fatalf("err: %v", err) } got, want := a.State.Services()[tt.srv.ID], tt.srv verify.Values(t, "", got, want) }) // check the health checks for k, v := range tt.healthChks { t.Run(k, func(t *testing.T) { got, want := a.State.Checks()[types.CheckID(k)], v verify.Values(t, k, got, want) }) } // 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_RemoveService(t *testing.T) { t.Parallel() a := NewTestAgent(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, ""); 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, ""); err != nil { t.Fatalf("err: %s", err) } if err := a.RemoveService("memcache", false); err != nil { t.Fatalf("err: %s", err) } if _, ok := a.State.Checks()["service:memcache"]; ok { t.Fatalf("have memcache check") } if _, ok := a.State.Checks()["check2"]; ok { t.Fatalf("have check2 check") } } // Removing a service with multiple checks works { srv := &structs.NodeService{ ID: "redis", Service: "redis", Port: 8000, } chkTypes := []*structs.CheckType{ &structs.CheckType{TTL: time.Minute}, &structs.CheckType{TTL: 30 * time.Second}, } if err := a.AddService(srv, chkTypes, false, ""); err != nil { t.Fatalf("err: %v", err) } // Remove the service if err := a.RemoveService("redis", false); err != nil { t.Fatalf("err: %v", err) } // Ensure we have a state mapping if _, ok := a.State.Services()["redis"]; ok { t.Fatalf("have redis service") } // Ensure checks were removed if _, ok := a.State.Checks()["service:redis:1"]; ok { t.Fatalf("check redis:1 should be removed") } if _, ok := a.State.Checks()["service:redis:2"]; ok { t.Fatalf("check redis:2 should be removed") } // Ensure a TTL is setup if _, ok := a.checkTTLs["service:redis:1"]; ok { t.Fatalf("check ttl for redis:1 should be removed") } if _, ok := a.checkTTLs["service:redis:2"]; ok { t.Fatalf("check ttl for redis:2 should be removed") } } } func TestAgent_RemoveServiceRemovesAllChecks(t *testing.T) { t.Parallel() a := NewTestAgent(t.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, ""); 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, ""); 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.Name(), "") defer a.Shutdown() svc := &structs.NodeService{ ID: "redis", Service: "redis", Port: 8000, Tags: tags, } if err := a.AddService(svc, nil, true, ""); 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, ""); 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, ""); 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 if err := a.RPC("Health.ServiceNodes", args, &before); err != nil { t.Fatalf("err: %v", err) } 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++ { if err := a.sync.State.SyncFull(); err != nil { t.Fatalf("err: %v", err) } } 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.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, "") 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.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, "") 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.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, "") 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.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, "") 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.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, "") 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.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, "") 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_GRPC(t *testing.T) { t.Parallel() a := NewTestAgent(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, "") 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_RemoveCheck(t *testing.T) { t.Parallel() a := NewTestAgent(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, "") 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.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, "") if err != nil { t.Fatalf("err: %v", err) } retry.Run(t, func(r *retry.R) { status := a.State.Checks()["tls"] if status.Status != api.HealthPassing { r.Fatalf("bad: %v", status.Status) } if !strings.Contains(status.Output, "GOOD") { r.Fatalf("bad: %v", status.Output) } }) } func TestAgent_HTTPCheck_EnableAgentTLSForChecks(t *testing.T) { t.Parallel() run := func(t *testing.T, ca string) { a := &TestAgent{ Name: t.Name(), UseTLS: true, HCL: ` enable_agent_tls_for_checks = true verify_incoming = true server_name = "consul.test" key_file = "../test/client_certs/server.key" cert_file = "../test/client_certs/server.crt" ` + ca, } a.Start() 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, "") 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.Name(), "") defer a.Shutdown() health := &structs.HealthCheck{ Node: "foo", CheckID: "mem", Name: "memory util", Status: api.HealthCritical, } chk := &structs.CheckType{ TTL: 15 * time.Second, } // Add check and update it. err := a.AddCheck(health, chk, false, "") if err != nil { t.Fatalf("err: %v", err) } if err := a.updateTTLCheck("mem", api.HealthPassing, "foo"); err != nil { t.Fatalf("err: %v", err) } // Ensure we have a check mapping. status := a.State.Checks()["mem"] if status.Status != api.HealthPassing { t.Fatalf("bad: %v", status) } if status.Output != "foo" { t.Fatalf("bad: %v", status) } } func TestAgent_PersistService(t *testing.T) { t.Parallel() dataDir := testutil.TempDir(t, "agent") // we manage the data dir cfg := ` server = false bootstrap = false data_dir = "` + dataDir + `" ` a := &TestAgent{Name: t.Name(), HCL: cfg, DataDir: dataDir} a.Start() 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, ""); 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"); 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"); err != nil { t.Fatalf("err: %v", err) } expected, err = json.Marshal(persistedService{ Token: "mytoken", Service: svc, }) if err != nil { t.Fatalf("err: %s", err) } content, err = ioutil.ReadFile(file) if err != nil { t.Fatalf("err: %s", err) } if !bytes.Equal(expected, content) { t.Fatalf("bad: %s", string(content)) } a.Shutdown() // Should load it back during later start a2 := &TestAgent{Name: t.Name(), HCL: cfg, DataDir: dataDir} a2.Start() 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.Name(), "") defer a.Shutdown() svc := &structs.NodeService{ ID: "redis", Service: "redis", Tags: []string{"foo"}, Port: 8000, } // 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") } if !reflect.DeepEqual(result, svc) { t.Fatalf("bad: %#v", result) } } func TestAgent_PurgeService(t *testing.T) { t.Parallel() a := NewTestAgent(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, ""); 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, ""); err != nil { t.Fatalf("err: %v", err) } // Removed if err := a.RemoveService(svc.ID, true); err != nil { t.Fatalf("err: %s", err) } if _, err := os.Stat(file); !os.IsNotExist(err) { t.Fatalf("bad: %#v", err) } } func TestAgent_PurgeServiceOnDuplicate(t *testing.T) { t.Parallel() dataDir := testutil.TempDir(t, "agent") // we manage the data dir cfg := ` data_dir = "` + dataDir + `" server = false bootstrap = false ` a := &TestAgent{Name: t.Name(), HCL: cfg, DataDir: dataDir} a.Start() 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, ""); err != nil { t.Fatalf("err: %v", err) } a.Shutdown() // Try bringing the agent back up with the service already // existing in the config a2 := &TestAgent{Name: t.Name() + "-a2", HCL: cfg + ` service = { id = "redis" name = "redis" tags = ["bar"] port = 9000 } `, DataDir: dataDir} a2.Start() 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} a.Start() 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, ""); 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"); err != nil { t.Fatalf("err: %v", err) } if _, err := os.Stat(file); err != nil { t.Fatalf("err: %s", err) } expected, err := json.Marshal(persistedCheck{ Check: check, ChkType: chkType, Token: "mytoken", }) if err != nil { t.Fatalf("err: %s", err) } content, err := ioutil.ReadFile(file) if err != nil { t.Fatalf("err: %s", err) } if !bytes.Equal(expected, content) { t.Fatalf("bad: %s", string(content)) } // Updates the check definition on disk check.Name = "mem1" if err := a.AddCheck(check, chkType, true, "mytoken"); err != nil { t.Fatalf("err: %v", err) } expected, err = json.Marshal(persistedCheck{ Check: check, ChkType: chkType, Token: "mytoken", }) if err != nil { t.Fatalf("err: %s", err) } content, err = ioutil.ReadFile(file) if err != nil { t.Fatalf("err: %s", err) } if !bytes.Equal(expected, content) { t.Fatalf("bad: %s", string(content)) } a.Shutdown() // Should load it back during later start a2 := &TestAgent{Name: t.Name() + "-a2", HCL: cfg, DataDir: dataDir} a2.Start() 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.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, ""); 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.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, ""); err != nil { t.Fatalf("err: %v", err) } a.Shutdown() // Start again with the check registered in config a2 := NewTestAgent(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.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.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, ""); 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, ""); 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.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_unloadServices(t *testing.T) { t.Parallel() a := NewTestAgent(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, ""); err != nil { t.Fatalf("err: %v", err) } found := false for id := range a.State.Services() { if id == svc.ID { found = true break } } if !found { t.Fatalf("should have registered service") } // Unload all services if err := a.unloadServices(); err != nil { t.Fatalf("err: %s", err) } if len(a.State.Services()) != 0 { t.Fatalf("should have unloaded services") } } func TestAgent_loadProxies(t *testing.T) { t.Parallel() a := NewTestAgent(t.Name(), ` service = { id = "rabbitmq" name = "rabbitmq" port = 5672 token = "abc123" connect { proxy { config { bind_port = 1234 } } } } `) defer a.Shutdown() services := a.State.Services() if _, ok := services["rabbitmq"]; !ok { t.Fatalf("missing service") } if token := a.State.ServiceToken("rabbitmq"); token != "abc123" { t.Fatalf("bad: %s", token) } if _, ok := services["rabbitmq-proxy"]; !ok { t.Fatalf("missing proxy service") } if token := a.State.ServiceToken("rabbitmq-proxy"); token != "abc123" { t.Fatalf("bad: %s", token) } proxies := a.State.Proxies() if _, ok := proxies["rabbitmq-proxy"]; !ok { t.Fatalf("missing proxy") } } func TestAgent_loadProxies_nilProxy(t *testing.T) { t.Parallel() a := NewTestAgent(t.Name(), ` service = { id = "rabbitmq" name = "rabbitmq" port = 5672 token = "abc123" connect { } } `) defer a.Shutdown() services := a.State.Services() require.Contains(t, services, "rabbitmq") require.Equal(t, "abc123", a.State.ServiceToken("rabbitmq")) require.NotContains(t, services, "rabbitme-proxy") require.Empty(t, a.State.Proxies()) } func TestAgent_unloadProxies(t *testing.T) { t.Parallel() a := NewTestAgent(t.Name(), ` service = { id = "rabbitmq" name = "rabbitmq" port = 5672 token = "abc123" connect { proxy { config { bind_port = 1234 } } } } `) defer a.Shutdown() // Sanity check it's there require.NotNil(t, a.State.Proxy("rabbitmq-proxy")) // Unload all proxies if err := a.unloadProxies(); err != nil { t.Fatalf("err: %s", err) } if len(a.State.Proxies()) != 0 { t.Fatalf("should have unloaded proxies") } } func TestAgent_Service_MaintenanceMode(t *testing.T) { t.Parallel() a := NewTestAgent(t.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, ""); 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.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, DeregisterCriticalServiceAfter: 200 * time.Millisecond, }, } // Register the service. if err := a.AddService(svc, chkTypes, false, ""); 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.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, ""); 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_addCheck_restoresSnapshot(t *testing.T) { t.Parallel() a := NewTestAgent(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, ""); 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, ""); 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, ""); 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.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.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, ""); 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, ""); err != nil { t.Fatalf("err: %s", err) } // Snapshot the state snap := a.snapshotCheckState() // Unload all of the checks if err := a.unloadChecks(); err != nil { t.Fatalf("err: %s", err) } // Reload the checks if err := a.loadChecks(a.Config); err != nil { t.Fatalf("err: %s", err) } // Restore the state a.restoreCheckState(snap) // Search for the check out, ok := a.State.Checks()[check1.CheckID] if !ok { t.Fatalf("check should have been registered") } // Make sure state was restored if out.Status != api.HealthPassing { t.Fatalf("should have restored check state") } } func TestAgent_loadChecks_checkFails(t *testing.T) { t.Parallel() a := NewTestAgent(t.Name(), "") defer a.Shutdown() // Persist a health check with an invalid service ID check := &structs.HealthCheck{ Node: a.Config.NodeName, CheckID: "service:redis", Name: "redischeck", Status: api.HealthPassing, ServiceID: "nope", } if err := a.persistCheck(check, nil); err != nil { t.Fatalf("err: %s", err) } // Check to make sure the check was persisted checkHash := checkIDHash(check.CheckID) checkPath := filepath.Join(a.Config.DataDir, checksDir, checkHash) if _, err := os.Stat(checkPath); err != nil { t.Fatalf("err: %s", err) } // Try loading the checks from the persisted files if err := a.loadChecks(a.Config); err != nil { t.Fatalf("err: %s", err) } // Ensure the erroneous check was purged if _, err := os.Stat(checkPath); err == nil { t.Fatalf("should have purged check") } } func TestAgent_persistCheckState(t *testing.T) { t.Parallel() a := NewTestAgent(t.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.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.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.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.Name(), "") defer a.Shutdown() // Normal watch with http addr set, should succeed newConf := *a.config newConf.Watches = []map[string]interface{}{ { "type": "key", "key": "asdf", "args": []interface{}{"ls"}, }, } if err := a.reloadWatches(&newConf); err != nil { t.Fatalf("bad: %s", err) } // Should fail to reload with connect watches newConf.Watches = []map[string]interface{}{ { "type": "connect_roots", "key": "asdf", "args": []interface{}{"ls"}, }, } if err := a.reloadWatches(&newConf); err == nil || !strings.Contains(err.Error(), "not allowed in agent config") { t.Fatalf("bad: %s", err) } // Should still succeed with only HTTPS addresses newConf.HTTPSAddrs = newConf.HTTPAddrs newConf.HTTPAddrs = make([]net.Addr, 0) newConf.Watches = []map[string]interface{}{ { "type": "key", "key": "asdf", "args": []interface{}{"ls"}, }, } if err := a.reloadWatches(&newConf); err != nil { t.Fatalf("bad: %s", err) } // Should fail to reload with no http or https addrs newConf.HTTPSAddrs = make([]net.Addr, 0) newConf.Watches = []map[string]interface{}{ { "type": "key", "key": "asdf", "args": []interface{}{"ls"}, }, } if err := a.reloadWatches(&newConf); err == nil || !strings.Contains(err.Error(), "watch plans require an HTTP or HTTPS endpoint") { t.Fatalf("bad: %s", err) } } func TestAgent_reloadWatchesHTTPS(t *testing.T) { t.Parallel() a := TestAgent{Name: t.Name(), UseTLS: true} a.Start() defer a.Shutdown() // Normal watch with http addr set, should succeed newConf := *a.config newConf.Watches = []map[string]interface{}{ { "type": "key", "key": "asdf", "args": []interface{}{"ls"}, }, } if err := a.reloadWatches(&newConf); err != nil { t.Fatalf("bad: %s", err) } } func TestAgent_AddProxy(t *testing.T) { t.Parallel() a := NewTestAgent(t.Name(), ` node_name = "node1" connect { proxy_defaults { exec_mode = "script" daemon_command = ["foo", "bar"] script_command = ["bar", "foo"] } } `) defer a.Shutdown() // Register a target service we can use reg := &structs.NodeService{ Service: "web", Port: 8080, } require.NoError(t, a.AddService(reg, nil, false, "")) tests := []struct { desc string proxy, wantProxy *structs.ConnectManagedProxy wantErr bool }{ { desc: "basic proxy adding, unregistered service", proxy: &structs.ConnectManagedProxy{ ExecMode: structs.ProxyExecModeDaemon, Command: []string{"consul", "connect", "proxy"}, Config: map[string]interface{}{ "foo": "bar", }, TargetServiceID: "db", // non-existent service. }, // Target service must be registered. wantErr: true, }, { desc: "basic proxy adding, unregistered service", proxy: &structs.ConnectManagedProxy{ ExecMode: structs.ProxyExecModeDaemon, Command: []string{"consul", "connect", "proxy"}, Config: map[string]interface{}{ "foo": "bar", }, TargetServiceID: "web", }, wantErr: false, }, { desc: "default global exec mode", proxy: &structs.ConnectManagedProxy{ Command: []string{"consul", "connect", "proxy"}, TargetServiceID: "web", }, wantProxy: &structs.ConnectManagedProxy{ ExecMode: structs.ProxyExecModeScript, Command: []string{"consul", "connect", "proxy"}, TargetServiceID: "web", }, wantErr: false, }, { desc: "default daemon command", proxy: &structs.ConnectManagedProxy{ ExecMode: structs.ProxyExecModeDaemon, TargetServiceID: "web", }, wantProxy: &structs.ConnectManagedProxy{ ExecMode: structs.ProxyExecModeDaemon, Command: []string{"foo", "bar"}, TargetServiceID: "web", }, wantErr: false, }, { desc: "default script command", proxy: &structs.ConnectManagedProxy{ ExecMode: structs.ProxyExecModeScript, TargetServiceID: "web", }, wantProxy: &structs.ConnectManagedProxy{ ExecMode: structs.ProxyExecModeScript, Command: []string{"bar", "foo"}, TargetServiceID: "web", }, wantErr: false, }, } for _, tt := range tests { t.Run(tt.desc, func(t *testing.T) { require := require.New(t) err := a.AddProxy(tt.proxy, false) if tt.wantErr { require.Error(err) return } require.NoError(err) // Test the ID was created as we expect. got := a.State.Proxy("web-proxy") wantProxy := tt.wantProxy if wantProxy == nil { wantProxy = tt.proxy } wantProxy.ProxyService = got.Proxy.ProxyService require.Equal(wantProxy, got.Proxy) }) } } func TestAgent_RemoveProxy(t *testing.T) { t.Parallel() a := NewTestAgent(t.Name(), ` node_name = "node1" `) defer a.Shutdown() require := require.New(t) // Register a target service we can use reg := &structs.NodeService{ Service: "web", Port: 8080, } require.NoError(a.AddService(reg, nil, false, "")) // Add a proxy for web pReg := &structs.ConnectManagedProxy{ TargetServiceID: "web", ExecMode: structs.ProxyExecModeDaemon, Command: []string{"foo"}, } require.NoError(a.AddProxy(pReg, false)) // Test the ID was created as we expect. gotProxy := a.State.Proxy("web-proxy") gotProxy.Proxy.ProxyService = nil require.Equal(pReg, gotProxy.Proxy) err := a.RemoveProxy("web-proxy", false) require.NoError(err) gotProxy = a.State.Proxy("web-proxy") require.Nil(gotProxy) // Removing invalid proxy should be an error err = a.RemoveProxy("foobar", false) require.Error(err) }