Golang NewRPCClient 예제들

예제 #1

파일: command_test.go 프로젝트: emilevauge/serf

func TestCommandRun_advertiseAddr(t *testing.T) {
	doneCh := make(chan struct{})
	shutdownCh := make(chan struct{})
	defer func() {
		close(shutdownCh)
		<-doneCh
	}()

	c := &Command{
		ShutdownCh: shutdownCh,
		Ui:         new(cli.MockUi),
	}

	rpcAddr := getRPCAddr()
	args := []string{
		"-bind", testutil.GetBindAddr().String(),
		"-rpc-addr", rpcAddr,
		"-advertise", "127.0.0.10:12345",
	}

	go func() {
		code := c.Run(args)
		if code != 0 {
			log.Printf("bad: %d", code)
		}

		close(doneCh)
	}()

	testutil.Yield()

	client, err := client.NewRPCClient(rpcAddr)
	if err != nil {
		t.Fatalf("err: %s", err)
	}
	defer client.Close()

	members, err := client.Members()
	if err != nil {
		t.Fatalf("err: %s", err)
	}

	if len(members) != 1 {
		t.Fatalf("bad: %#v", members)
	}

	// Check the addr and port is as advertised!
	m := members[0]
	if bytes.Compare(m.Addr, []byte{127, 0, 0, 10}) != 0 {
		t.Fatalf("bad: %#v", m)
	}
	if m.Port != 12345 {
		t.Fatalf("bad: %#v", m)
	}
}

예제 #2

파일: server.go 프로젝트: rayram23/crdt

func clusterUp(clusterAddr string) (*client.RPCClient, error) {
	client, err := client.NewRPCClient(clusterAddr)
	if err != nil {
		return nil, err
	}
	_, err = client.Join([]string{clusterAddr}, false)
	if err != nil {
		return nil, err
	}
	return client, nil
}

예제 #3

파일: cluster.go 프로젝트: cagedmantis/crdt

func NewCluster(host string) (Cluster, error) {
	//"127.0.0.1:7373"
	s, err := client.NewRPCClient(host)
	if err != nil {
		fmt.Println(err)
		return Cluster{}, err
	}
	c := Cluster{
		serf: s,
	}
	return c, nil
}

예제 #4

파일: tags_test.go 프로젝트: WIZARD-CXY/golang-devops-stuff

func TestTagsCommandRun(t *testing.T) {
	a1 := testAgent(t)
	defer a1.Shutdown()
	rpcAddr, ipc := testIPC(t, a1)
	defer ipc.Shutdown()

	ui := new(cli.MockUi)
	c := &TagsCommand{Ui: ui}
	args := []string{
		"-rpc-addr=" + rpcAddr,
		"-delete", "tag2",
		"-set", "a=1",
		"-set", "b=2",
	}

	code := c.Run(args)
	if code != 0 {
		t.Fatalf("bad: %d. %#v", code, ui.ErrorWriter.String())
	}

	if !strings.Contains(ui.OutputWriter.String(), "Successfully updated agent tags") {
		t.Fatalf("bad: %#v", ui.OutputWriter.String())
	}

	rpcClient, err := client.NewRPCClient(rpcAddr)
	if err != nil {
		t.Fatalf("err: %s", err)
	}

	mem, err := rpcClient.Members()
	if err != nil {
		t.Fatalf("err: %s", err)
	}

	if len(mem) != 1 {
		t.Fatalf("bad: %v", mem)
	}

	m0 := mem[0]
	if _, ok := m0.Tags["tag2"]; ok {
		t.Fatalf("bad: %v", m0.Tags)
	}
	if _, ok := m0.Tags["a"]; !ok {
		t.Fatalf("bad: %v", m0.Tags)
	}
	if _, ok := m0.Tags["b"]; !ok {
		t.Fatalf("bad: %v", m0.Tags)
	}
}

예제 #5

파일: command_test.go 프로젝트: emilevauge/serf

func TestCommandRun_rpc(t *testing.T) {
	doneCh := make(chan struct{})
	shutdownCh := make(chan struct{})
	defer func() {
		close(shutdownCh)
		<-doneCh
	}()

	c := &Command{
		ShutdownCh: shutdownCh,
		Ui:         new(cli.MockUi),
	}

	rpcAddr := getRPCAddr()
	args := []string{
		"-bind", testutil.GetBindAddr().String(),
		"-rpc-addr", rpcAddr,
	}

	go func() {
		code := c.Run(args)
		if code != 0 {
			log.Printf("bad: %d", code)
		}

		close(doneCh)
	}()

	testutil.Yield()

	client, err := client.NewRPCClient(rpcAddr)
	if err != nil {
		t.Fatalf("err: %s", err)
	}
	defer client.Close()

	members, err := client.Members()
	if err != nil {
		t.Fatalf("err: %s", err)
	}

	if len(members) != 1 {
		t.Fatalf("bad: %#v", members)
	}
}

예제 #6

파일: keys_test.go 프로젝트: paha/serf

func TestKeysCommandRun_InstallKey(t *testing.T) {
	a1 := testKeysCommandAgent(t)
	defer a1.Shutdown()
	rpcAddr, ipc := testIPC(t, a1)
	defer ipc.Shutdown()

	ui := new(cli.MockUi)
	c := &KeysCommand{Ui: ui}

	rpcClient, err := client.NewRPCClient(rpcAddr)
	if err != nil {
		t.Fatalf("err: %s", err)
	}

	keys, _, err := rpcClient.ListKeys()
	if err != nil {
		t.Fatalf("err: %s", err)
	}
	if _, ok := keys["jbuQMI4gMUeh1PPmKOtiBg=="]; ok {
		t.Fatalf("have test key")
	}

	args := []string{
		"-rpc-addr=" + rpcAddr,
		"-install", "jbuQMI4gMUeh1PPmKOtiBg==",
	}

	code := c.Run(args)
	if code != 0 {
		t.Fatalf("bad: %d. %#v", code, ui.ErrorWriter.String())
	}

	if !strings.Contains(ui.OutputWriter.String(), "Successfully installed key") {
		t.Fatalf("bad: %#v", ui.OutputWriter.String())
	}

	keys, _, err = rpcClient.ListKeys()
	if err != nil {
		t.Fatalf("err: %s", err)
	}

	if _, ok := keys["jbuQMI4gMUeh1PPmKOtiBg=="]; !ok {
		t.Fatalf("new key not found")
	}
}

예제 #7

파일: serfin.go 프로젝트: theckman/goiardi

// StartSerfin sets up the serf instance and starts listening for events and
// queries from other serf instances.
func StartSerfin() error {
	var err error
	Serfer, err = serfclient.NewRPCClient(config.Config.SerfAddr)
	if err != nil {
		logger.Criticalf(err.Error())
		os.Exit(1)
	}

	if config.Config.SerfEventAnnounce {
		err = Serfer.UserEvent("goiardi-join", []byte(config.Config.Hostname), true)
		if err != nil {
			logger.Criticalf(err.Error())
			os.Exit(1)
		}
	}

	return nil
}

예제 #8

파일: rpc_client_test.go 프로젝트: jwilder/serf

// testRPCClient returns an RPCClient connected to an RPC server that
// serves only this connection.
func testRPCClient(t *testing.T) (*client.RPCClient, *Agent, *AgentIPC) {
	l, err := net.Listen("tcp", "127.0.0.1:0")
	if err != nil {
		t.Fatalf("err: %s", err)
	}

	lw := NewLogWriter(512)
	mult := io.MultiWriter(os.Stderr, lw)

	agent := testAgent(mult)
	ipc := NewAgentIPC(agent, "", l, mult, lw)

	rpcClient, err := client.NewRPCClient(l.Addr().String())
	if err != nil {
		t.Fatalf("err: %s", err)
	}

	return rpcClient, agent, ipc
}

예제 #9

파일: command_test.go 프로젝트: emilevauge/serf

func TestCommandRun_mDNS(t *testing.T) {
	// mDNS does not work in travis
	if os.Getenv("TRAVIS") != "" {
		t.SkipNow()
	}

	// Start an agent
	doneCh := make(chan struct{})
	shutdownCh := make(chan struct{})
	defer func() {
		close(shutdownCh)
		<-doneCh
	}()

	c := &Command{
		ShutdownCh: shutdownCh,
		Ui:         new(cli.MockUi),
	}

	args := []string{
		"-node", "foo",
		"-bind", testutil.GetBindAddr().String(),
		"-discover", "test",
		"-rpc-addr", getRPCAddr(),
	}

	go func() {
		code := c.Run(args)
		if code != 0 {
			log.Printf("bad: %d", code)
		}
		close(doneCh)
	}()

	// Start a second agent
	doneCh2 := make(chan struct{})
	shutdownCh2 := make(chan struct{})
	defer func() {
		close(shutdownCh2)
		<-doneCh2
	}()

	c2 := &Command{
		ShutdownCh: shutdownCh2,
		Ui:         new(cli.MockUi),
	}

	addr2 := getRPCAddr()
	args2 := []string{
		"-node", "bar",
		"-bind", testutil.GetBindAddr().String(),
		"-discover", "test",
		"-rpc-addr", addr2,
	}

	go func() {
		code := c2.Run(args2)
		if code != 0 {
			log.Printf("bad: %d", code)
		}
		close(doneCh2)
	}()

	time.Sleep(150 * time.Millisecond)

	client, err := client.NewRPCClient(addr2)
	if err != nil {
		t.Fatalf("err: %s", err)
	}
	defer client.Close()

	members, err := client.Members()
	if err != nil {
		t.Fatalf("err: %s", err)
	}

	if len(members) != 2 {
		t.Fatalf("bad: %#v", members)
	}
}

예제 #10

파일: keys_test.go 프로젝트: paha/serf

func TestKeysCommandRun_RemoveKey(t *testing.T) {
	a1 := testKeysCommandAgent(t)
	defer a1.Shutdown()
	rpcAddr, ipc := testIPC(t, a1)
	defer ipc.Shutdown()

	ui := new(cli.MockUi)
	c := &KeysCommand{Ui: ui}

	rpcClient, err := client.NewRPCClient(rpcAddr)
	if err != nil {
		t.Fatalf("err: %s", err)
	}

	keys, _, err := rpcClient.ListKeys()
	if err != nil {
		t.Fatalf("err: %s", err)
	}
	if len(keys) != 2 {
		t.Fatalf("expected 2 keys: %v", keys)
	}

	// Removing non-existing key still returns 0 (noop)
	args := []string{
		"-rpc-addr=" + rpcAddr,
		"-remove", "eodFZZjm7pPwIZ0Miy7boQ==",
	}

	code := c.Run(args)
	if code != 0 {
		t.Fatalf("bad: %d. %#v", code, ui.ErrorWriter.String())
	}

	// Number of keys unchanged after noop command
	keys, _, err = rpcClient.ListKeys()
	if err != nil {
		t.Fatalf("err: %s", err)
	}
	if len(keys) != 2 {
		t.Fatalf("expected 2 keys: %v", keys)
	}

	// Removing a primary key returns 1
	args = []string{
		"-rpc-addr=" + rpcAddr,
		"-remove", "SNCg1bQSoCdGVlEx+TgfBw==",
	}

	ui.ErrorWriter.Reset()
	code = c.Run(args)
	if code != 1 {
		t.Fatalf("bad: %d. %#v", code, ui.ErrorWriter.String())
	}

	if !strings.Contains(ui.ErrorWriter.String(), "Error removing key") {
		t.Fatalf("bad: %#v", ui.OutputWriter.String())
	}

	// Removing a non-primary, existing key returns 0
	args = []string{
		"-rpc-addr=" + rpcAddr,
		"-remove", "vbitCcJNwNP4aEWHgofjMg==",
	}

	code = c.Run(args)
	if code != 0 {
		t.Fatalf("bad: %d. %#v", code, ui.ErrorWriter.String())
	}

	// Key removed after successful -remove command
	keys, _, err = rpcClient.ListKeys()
	if err != nil {
		t.Fatalf("err: %s", err)
	}
	if len(keys) != 1 {
		t.Fatalf("expected 2 keys: %v", keys)
	}
}

예제 #11

파일: serf.go 프로젝트: EntropyWorks/enforcer

// RPCClient returns a new Serf RPC client with the given address.
func RPCClient(addr string) (*client.RPCClient, error) {
	return client.NewRPCClient(addr)
}