Golang DockerCli.Out方法代码示例

func runLogin(dockerCli *client.DockerCli, opts loginOptions) error {
	ctx := context.Background()
	clnt := dockerCli.Client()

	var serverAddress string
	var isDefaultRegistry bool
	if opts.serverAddress != "" {
		serverAddress = opts.serverAddress
	} else {
		serverAddress = dockerCli.ElectAuthServer(ctx)
		isDefaultRegistry = true
	}
	authConfig, err := dockerCli.ConfigureAuth(opts.user, opts.password, serverAddress, isDefaultRegistry)
	if err != nil {
		return err
	}
	response, err := clnt.RegistryLogin(ctx, authConfig)
	if err != nil {
		return err
	}
	if response.IdentityToken != "" {
		authConfig.Password = ""
		authConfig.IdentityToken = response.IdentityToken
	}
	if err := client.StoreCredentials(dockerCli.ConfigFile(), authConfig); err != nil {
		return fmt.Errorf("Error saving credentials: %v", err)
	}

	if response.Status != "" {
		fmt.Fprintln(dockerCli.Out(), response.Status)
	}
	return nil
}

func runRemove(dockerCli *client.DockerCli, opts removeOptions, images []string) error {
	client := dockerCli.Client()
	ctx := context.Background()

	options := types.ImageRemoveOptions{
		Force:         opts.force,
		PruneChildren: !opts.noPrune,
	}

	var errs []string
	for _, image := range images {
		dels, err := client.ImageRemove(ctx, image, options)
		if err != nil {
			errs = append(errs, err.Error())
		} else {
			for _, del := range dels {
				if del.Deleted != "" {
					fmt.Fprintf(dockerCli.Out(), "Deleted: %s\n", del.Deleted)
				} else {
					fmt.Fprintf(dockerCli.Out(), "Untagged: %s\n", del.Untagged)
				}
			}
		}
	}

	if len(errs) > 0 {
		return fmt.Errorf("%s", strings.Join(errs, "\n"))
	}
	return nil
}

func runList(dockerCli *client.DockerCli, opts listOptions) error {
	ctx := context.Background()
	client := dockerCli.Client()

	services, err := client.ServiceList(ctx, types.ServiceListOptions{Filter: opts.filter.Value()})
	if err != nil {
		return err
	}

	out := dockerCli.Out()
	if opts.quiet {
		PrintQuiet(out, services)
	} else {
		taskFilter := filters.NewArgs()
		for _, service := range services {
			taskFilter.Add("service", service.ID)
		}

		tasks, err := client.TaskList(ctx, types.TaskListOptions{Filter: taskFilter})
		if err != nil {
			return err
		}

		nodes, err := client.NodeList(ctx, types.NodeListOptions{})
		if err != nil {
			return err
		}

		PrintNotQuiet(out, services, nodes, tasks)
	}
	return nil
}

func runLogs(dockerCli *client.DockerCli, opts *logsOptions) error {
	ctx := context.Background()

	c, err := dockerCli.Client().ContainerInspect(ctx, opts.container)
	if err != nil {
		return err
	}

	if !validDrivers[c.HostConfig.LogConfig.Type] {
		return fmt.Errorf("\"logs\" command is supported only for \"json-file\" and \"journald\" logging drivers (got: %s)", c.HostConfig.LogConfig.Type)
	}

	options := types.ContainerLogsOptions{
		ShowStdout: true,
		ShowStderr: true,
		Since:      opts.since,
		Timestamps: opts.timestamps,
		Follow:     opts.follow,
		Tail:       opts.tail,
		Details:    opts.details,
	}
	responseBody, err := dockerCli.Client().ContainerLogs(ctx, opts.container, options)
	if err != nil {
		return err
	}
	defer responseBody.Close()

	if c.Config.Tty {
		_, err = io.Copy(dockerCli.Out(), responseBody)
	} else {
		_, err = stdcopy.StdCopy(dockerCli.Out(), dockerCli.Err(), responseBody)
	}
	return err
}

func runCreate(dockerCli *client.DockerCli, opts *serviceOptions) error {
	apiClient := dockerCli.Client()
	createOpts := types.ServiceCreateOptions{}

	service, err := opts.ToService()
	if err != nil {
		return err
	}

	ctx := context.Background()

	// only send auth if flag was set
	if opts.registryAuth {
		// Retrieve encoded auth token from the image reference
		encodedAuth, err := dockerCli.RetrieveAuthTokenFromImage(ctx, opts.image)
		if err != nil {
			return err
		}
		createOpts.EncodedRegistryAuth = encodedAuth
	}

	response, err := apiClient.ServiceCreate(ctx, service, createOpts)
	if err != nil {
		return err
	}

	fmt.Fprintf(dockerCli.Out(), "%s\n", response.ID)
	return nil
}

func runCreate(dockerCli *client.DockerCli, opts createOptions) error {
	client := dockerCli.Client()

	ipamCfg, err := consolidateIpam(opts.ipamSubnet, opts.ipamIPRange, opts.ipamGateway, opts.ipamAux.GetAll())
	if err != nil {
		return err
	}

	// Construct network create request body
	nc := types.NetworkCreate{
		Driver:  opts.driver,
		Options: opts.driverOpts.GetAll(),
		IPAM: network.IPAM{
			Driver:  opts.ipamDriver,
			Config:  ipamCfg,
			Options: opts.ipamOpt.GetAll(),
		},
		CheckDuplicate: true,
		Internal:       opts.internal,
		EnableIPv6:     opts.ipv6,
		Labels:         runconfigopts.ConvertKVStringsToMap(opts.labels),
	}

	resp, err := client.NetworkCreate(context.Background(), opts.name, nc)
	if err != nil {
		return err
	}
	fmt.Fprintf(dockerCli.Out(), "%s\n", resp.ID)
	return nil
}

func runRemove(dockerCli *client.DockerCli, opts *rmOptions) error {
	ctx := context.Background()

	var errs cli.Errors
	for _, name := range opts.plugins {
		named, err := reference.ParseNamed(name) // FIXME: validate
		if err != nil {
			return err
		}
		if reference.IsNameOnly(named) {
			named = reference.WithDefaultTag(named)
		}
		ref, ok := named.(reference.NamedTagged)
		if !ok {
			return fmt.Errorf("invalid name: %s", named.String())
		}
		// TODO: pass names to api instead of making multiple api calls
		if err := dockerCli.Client().PluginRemove(ctx, ref.String(), types.PluginRemoveOptions{Force: opts.force}); err != nil {
			errs = append(errs, err)
			continue
		}
		fmt.Fprintln(dockerCli.Out(), name)
	}
	// Do not simplify to `return errs` because even if errs == nil, it is not a nil-error interface value.
	if errs != nil {
		return errs
	}
	return nil
}

func runLoad(dockerCli *client.DockerCli, opts loadOptions) error {

	var input io.Reader = dockerCli.In()
	if opts.input != "" {
		file, err := os.Open(opts.input)
		if err != nil {
			return err
		}
		defer file.Close()
		input = file
	}
	if !dockerCli.IsTerminalOut() {
		opts.quiet = true
	}
	response, err := dockerCli.Client().ImageLoad(context.Background(), input, opts.quiet)
	if err != nil {
		return err
	}
	defer response.Body.Close()

	if response.Body != nil && response.JSON {
		return jsonmessage.DisplayJSONMessagesStream(response.Body, dockerCli.Out(), dockerCli.OutFd(), dockerCli.IsTerminalOut(), nil)
	}

	_, err = io.Copy(dockerCli.Out(), response.Body)
	return err
}

func runEvents(dockerCli *client.DockerCli, opts *eventsOptions) error {
	eventFilterArgs := filters.NewArgs()

	// Consolidate all filter flags, and sanity check them early.
	// They'll get process in the daemon/server.
	for _, f := range opts.filter {
		var err error
		eventFilterArgs, err = filters.ParseFlag(f, eventFilterArgs)
		if err != nil {
			return err
		}
	}

	options := types.EventsOptions{
		Since:   opts.since,
		Until:   opts.until,
		Filters: eventFilterArgs,
	}

	responseBody, err := dockerCli.Client().Events(context.Background(), options)
	if err != nil {
		return err
	}
	defer responseBody.Close()

	return streamEvents(responseBody, dockerCli.Out())
}

func runInspect(dockerCli *client.DockerCli, opts inspectOptions) error {
	ctx := context.Background()
	client := dockerCli.Client()

	var getRefFunc inspect.GetRefFunc
	switch opts.inspectType {
	case "container":
		getRefFunc = func(ref string) (interface{}, []byte, error) {
			return client.ContainerInspectWithRaw(ctx, ref, opts.size)
		}
	case "image":
		getRefFunc = func(ref string) (interface{}, []byte, error) {
			return client.ImageInspectWithRaw(ctx, ref)
		}
	case "task":
		if opts.size {
			fmt.Fprintln(dockerCli.Err(), "WARNING: --size ignored for tasks")
		}
		getRefFunc = func(ref string) (interface{}, []byte, error) {
			return client.TaskInspectWithRaw(ctx, ref)
		}
	case "":
		getRefFunc = inspectAll(ctx, dockerCli, opts.size)
	default:
		return fmt.Errorf("%q is not a valid value for --type", opts.inspectType)
	}

	return inspect.Inspect(dockerCli.Out(), opts.ids, opts.format, getRefFunc)
}

func runServiceScale(dockerCli *client.DockerCli, serviceID string, scale string) error {
	client := dockerCli.Client()
	ctx := context.Background()

	service, err := client.ServiceInspect(ctx, serviceID)
	if err != nil {
		return err
	}

	serviceMode := &service.Spec.Mode
	if serviceMode.Replicated == nil {
		return fmt.Errorf("scale can only be used with replicated mode")
	}
	uintScale, err := strconv.ParseUint(scale, 10, 64)
	if err != nil {
		return fmt.Errorf("invalid replicas value %s: %s", scale, err.Error())
	}
	serviceMode.Replicated.Replicas = &uintScale

	err = client.ServiceUpdate(ctx, service.ID, service.Version, service.Spec)
	if err != nil {
		return err
	}

	fmt.Fprintf(dockerCli.Out(), "%s scaled to %s\n", serviceID, scale)
	return nil
}

func runPush(dockerCli *client.DockerCli, remote string) error {
	ref, err := reference.ParseNamed(remote)
	if err != nil {
		return err
	}

	// Resolve the Repository name from fqn to RepositoryInfo
	repoInfo, err := registry.ParseRepositoryInfo(ref)
	if err != nil {
		return err
	}

	ctx := context.Background()

	// Resolve the Auth config relevant for this server
	authConfig := dockerCli.ResolveAuthConfig(ctx, repoInfo.Index)
	requestPrivilege := dockerCli.RegistryAuthenticationPrivilegedFunc(repoInfo.Index, "push")

	if client.IsTrusted() {
		return dockerCli.TrustedPush(ctx, repoInfo, ref, authConfig, requestPrivilege)
	}

	responseBody, err := dockerCli.ImagePushPrivileged(ctx, authConfig, ref.String(), requestPrivilege)
	if err != nil {
		return err
	}

	defer responseBody.Close()

	return jsonmessage.DisplayJSONMessagesStream(responseBody, dockerCli.Out(), dockerCli.OutFd(), dockerCli.IsTerminalOut(), nil)
}

func runUpdate(dockerCli *client.DockerCli, flags *pflag.FlagSet, opts swarmOptions) error {
	client := dockerCli.Client()
	ctx := context.Background()

	var updateFlags swarm.UpdateFlags

	swarm, err := client.SwarmInspect(ctx)
	if err != nil {
		return err
	}

	err = mergeSwarm(&swarm, flags)
	if err != nil {
		return err
	}

	err = client.SwarmUpdate(ctx, swarm.Version, swarm.Spec, updateFlags)
	if err != nil {
		return err
	}

	fmt.Fprintln(dockerCli.Out(), "Swarm updated.")

	return nil
}

func runInit(dockerCli *client.DockerCli, flags *pflag.FlagSet, opts initOptions) error {
	client := dockerCli.Client()
	ctx := context.Background()

	req := swarm.InitRequest{
		ListenAddr:      opts.listenAddr.String(),
		AdvertiseAddr:   opts.advertiseAddr,
		ForceNewCluster: opts.forceNewCluster,
		Spec:            opts.swarmOptions.ToSpec(),
	}

	nodeID, err := client.SwarmInit(ctx, req)
	if err != nil {
		if strings.Contains(err.Error(), "could not choose an IP address to advertise") || strings.Contains(err.Error(), "could not find the system's IP address") {
			return errors.New(err.Error() + " - specify one with --advertise-addr")
		}
		return err
	}

	fmt.Fprintf(dockerCli.Out(), "Swarm initialized: current node (%s) is now a manager.\n\n", nodeID)

	if err := printJoinCommand(ctx, dockerCli, nodeID, true, false); err != nil {
		return err
	}

	fmt.Fprint(dockerCli.Out(), "To add a manager to this swarm, run 'docker swarm join-token manager' and follow the instructions.\n\n")
	return nil
}

func pullImage(ctx context.Context, dockerCli *client.DockerCli, image string, out io.Writer) error {
	ref, err := reference.ParseNamed(image)
	if err != nil {
		return err
	}

	// Resolve the Repository name from fqn to RepositoryInfo
	repoInfo, err := registry.ParseRepositoryInfo(ref)
	if err != nil {
		return err
	}

	authConfig := dockerCli.ResolveAuthConfig(ctx, repoInfo.Index)
	encodedAuth, err := client.EncodeAuthToBase64(authConfig)
	if err != nil {
		return err
	}

	options := types.ImageCreateOptions{
		RegistryAuth: encodedAuth,
	}

	responseBody, err := dockerCli.Client().ImageCreate(ctx, image, options)
	if err != nil {
		return err
	}
	defer responseBody.Close()

	return jsonmessage.DisplayJSONMessagesStream(
		responseBody,
		out,
		dockerCli.Out().FD(),
		dockerCli.Out().IsTerminal(),
		nil)
}