Example #1
0
// NewNode creates a new raft node to use for tests
func NewNode(t *testing.T, clockSource *fakeclock.FakeClock, tc *cautils.TestCA, opts ...raft.NodeOptions) *TestNode {
	l, err := net.Listen("tcp", "127.0.0.1:0")
	require.NoError(t, err, "can't bind to raft service port")
	wrappedListener := NewWrappedListener(l)

	securityConfig, err := tc.NewNodeConfig(ca.ManagerRole)
	require.NoError(t, err)

	serverOpts := []grpc.ServerOption{grpc.Creds(securityConfig.ServerTLSCreds)}
	s := grpc.NewServer(serverOpts...)

	cfg := raft.DefaultNodeConfig()

	stateDir, err := ioutil.TempDir("", "test-raft")
	require.NoError(t, err, "can't create temporary state directory")

	keyRotator := NewSimpleKeyRotator(raft.EncryptionKeys{CurrentDEK: []byte("current")})
	newNodeOpts := raft.NodeOptions{
		ID:             securityConfig.ClientTLSCreds.NodeID(),
		Addr:           l.Addr().String(),
		Config:         cfg,
		StateDir:       stateDir,
		ClockSource:    clockSource,
		TLSCredentials: securityConfig.ClientTLSCreds,
		KeyRotator:     keyRotator,
	}

	if len(opts) > 1 {
		panic("more than one optional argument provided")
	}
	if len(opts) == 1 {
		newNodeOpts.JoinAddr = opts[0].JoinAddr
		if opts[0].Addr != "" {
			newNodeOpts.Addr = opts[0].Addr
		}
	}

	n := raft.NewNode(newNodeOpts)

	healthServer := health.NewHealthServer()
	api.RegisterHealthServer(s, healthServer)
	raft.Register(s, n)

	go func() {
		// After stopping, we should receive an error from Serve
		assert.Error(t, s.Serve(wrappedListener))
	}()

	healthServer.SetServingStatus("Raft", api.HealthCheckResponse_SERVING)

	return &TestNode{
		Node:           n,
		Listener:       wrappedListener,
		SecurityConfig: securityConfig,
		Address:        newNodeOpts.Addr,
		StateDir:       newNodeOpts.StateDir,
		Server:         s,
		KeyRotator:     keyRotator,
	}
}
Example #2
0
// NewJoinNode creates a new raft node joining an existing cluster
func NewJoinNode(t *testing.T, clockSource *fakeclock.FakeClock, join string, tc *cautils.TestCA, opts ...raft.NodeOptions) *TestNode {
	var derivedOpts raft.NodeOptions
	if len(opts) == 1 {
		derivedOpts = opts[0]
	}
	derivedOpts.JoinAddr = join
	n := NewNode(t, clockSource, tc, derivedOpts)

	ctx, cancel := context.WithCancel(context.Background())
	n.cancel = cancel
	err := n.Node.JoinAndStart(ctx)
	require.NoError(t, err, "can't join cluster")

	go n.Run(ctx)

	return n
}