コード例 #1
0
ファイル: node.go プロジェクト: docker/swarmkit
func (n *Node) initManagerConnection(ctx context.Context, ready chan<- struct{}) error {
	opts := []grpc.DialOption{}
	insecureCreds := credentials.NewTLS(&tls.Config{InsecureSkipVerify: true})
	opts = append(opts, grpc.WithTransportCredentials(insecureCreds))
	addr := n.config.ListenControlAPI
	opts = append(opts, grpc.WithDialer(
		func(addr string, timeout time.Duration) (net.Conn, error) {
			return xnet.DialTimeoutLocal(addr, timeout)
		}))
	conn, err := grpc.Dial(addr, opts...)
	if err != nil {
		return err
	}
	client := api.NewHealthClient(conn)
	for {
		resp, err := client.Check(ctx, &api.HealthCheckRequest{Service: "ControlAPI"})
		if err != nil {
			return err
		}
		if resp.Status == api.HealthCheckResponse_SERVING {
			break
		}
		time.Sleep(500 * time.Millisecond)
	}
	n.setControlSocket(conn)
	if ready != nil {
		close(ready)
	}
	return nil
}
コード例 #2
0
ファイル: manager.go プロジェクト: docker/docker
func (m *Manager) updateKEK(ctx context.Context, cluster *api.Cluster) error {
	securityConfig := m.config.SecurityConfig
	nodeID := m.config.SecurityConfig.ClientTLSCreds.NodeID()
	logger := log.G(ctx).WithFields(logrus.Fields{
		"node.id":   nodeID,
		"node.role": ca.ManagerRole,
	})

	kekData := ca.KEKData{Version: cluster.Meta.Version.Index}
	for _, encryptionKey := range cluster.UnlockKeys {
		if encryptionKey.Subsystem == ca.ManagerRole {
			kekData.KEK = encryptionKey.Key
			break
		}
	}
	updated, unlockedToLocked, err := m.dekRotator.MaybeUpdateKEK(kekData)
	if err != nil {
		logger.WithError(err).Errorf("failed to re-encrypt TLS key with a new KEK")
		return err
	}
	if updated {
		logger.Debug("successfully rotated KEK")
	}
	if unlockedToLocked {
		// a best effort attempt to update the TLS certificate - if it fails, it'll be updated the next time it renews;
		// don't wait because it might take a bit
		go func() {
			insecureCreds := credentials.NewTLS(&tls.Config{InsecureSkipVerify: true})

			conn, err := grpc.Dial(
				m.config.ControlAPI,
				grpc.WithTransportCredentials(insecureCreds),
				grpc.WithDialer(
					func(addr string, timeout time.Duration) (net.Conn, error) {
						return xnet.DialTimeoutLocal(addr, timeout)
					}),
			)
			if err != nil {
				logger.WithError(err).Error("failed to connect to local manager socket after locking the cluster")
				return
			}

			defer conn.Close()

			connBroker := connectionbroker.New(remotes.NewRemotes())
			connBroker.SetLocalConn(conn)
			if err := ca.RenewTLSConfigNow(ctx, securityConfig, connBroker); err != nil {
				logger.WithError(err).Error("failed to download new TLS certificate after locking the cluster")
			}
		}()
	}
	return nil
}