Golang RunContainerOptions.Stdin方法代码示例

// Execute runs the specified STI script in the builder image.
func (b *STI) Execute(command string, config *api.Config) error {
	glog.V(2).Infof("Using image name %s", config.BuilderImage)

	env, err := scripts.GetEnvironment(config)
	if err != nil {
		glog.V(1).Infof("No .sti/environment provided (%v)", err)
	}

	buildEnv := append(scripts.ConvertEnvironment(env), b.generateConfigEnv()...)

	errOutput := ""
	outReader, outWriter := io.Pipe()
	errReader, errWriter := io.Pipe()
	defer outReader.Close()
	defer outWriter.Close()
	defer errReader.Close()
	defer errWriter.Close()
	externalScripts := b.externalScripts[command]
	// if LayeredBuild is called then all the scripts will be placed inside the image
	if config.LayeredBuild {
		externalScripts = false
	}
	opts := dockerpkg.RunContainerOptions{
		Image:           config.BuilderImage,
		Stdout:          outWriter,
		Stderr:          errWriter,
		PullImage:       config.ForcePull,
		ExternalScripts: externalScripts,
		ScriptsURL:      config.ScriptsURL,
		Destination:     config.Destination,
		Command:         command,
		Env:             buildEnv,
		PostExec:        b.postExecutor,
	}

	if !config.LayeredBuild {
		wg := sync.WaitGroup{}
		wg.Add(1)
		uploadDir := filepath.Join(config.WorkingDir, "upload")

		// TODO: be able to pass a stream directly to the Docker build to avoid the double temp hit
		r, w := io.Pipe()
		go func() {
			var err error
			defer func() {
				w.CloseWithError(err)
				if r := recover(); r != nil {
					glog.Errorf("recovered panic: %#v", r)
				}
				wg.Done()
			}()
			err = b.tar.CreateTarStream(uploadDir, false, w)
		}()

		opts.Stdin = r
		defer wg.Wait()
	}

	go func(reader io.Reader) {
		scanner := bufio.NewReader(reader)
		for {
			text, err := scanner.ReadString('\n')
			if err != nil {
				// we're ignoring ErrClosedPipe, as this is information
				// the docker container ended streaming logs
				if glog.V(2) && err != io.ErrClosedPipe {
					glog.Errorf("Error reading docker stdout, %v", err)
				}
				break
			}
			if glog.V(2) || config.Quiet != true || command == api.Usage {
				glog.Info(text)
			}
		}
	}(outReader)

	go dockerpkg.StreamContainerIO(errReader, &errOutput, glog.Error)

	err = b.docker.RunContainer(opts)
	if e, ok := err.(errors.ContainerError); ok {
		return errors.NewContainerError(config.BuilderImage, e.ErrorCode, errOutput)
	}
	return err
}

// Execute runs the specified STI script in the builder image.
func (b *STI) Execute(command string, config *api.Config) error {
	glog.V(2).Infof("Using image name %s", config.BuilderImage)

	env, err := scripts.GetEnvironment(config)
	if err != nil {
		glog.V(1).Infof("No .sti/environment provided (%v)", err)
	}

	buildEnv := append(scripts.ConvertEnvironment(env), b.generateConfigEnv()...)

	uploadDir := filepath.Join(config.WorkingDir, "upload")
	tarFileName, err := b.tar.CreateTarFile(config.WorkingDir, uploadDir)
	if err != nil {
		return err
	}

	tarFile, err := b.fs.Open(tarFileName)
	if err != nil {
		return err
	}
	defer tarFile.Close()

	errOutput := ""
	outReader, outWriter := io.Pipe()
	errReader, errWriter := io.Pipe()
	defer outReader.Close()
	defer outWriter.Close()
	defer errReader.Close()
	defer errWriter.Close()
	externalScripts := b.externalScripts[command]
	// if LayeredBuild is called then all the scripts will be placed inside the image
	if config.LayeredBuild {
		externalScripts = false
	}
	opts := docker.RunContainerOptions{
		Image:           config.BuilderImage,
		Stdout:          outWriter,
		Stderr:          errWriter,
		PullImage:       config.ForcePull,
		ExternalScripts: externalScripts,
		ScriptsURL:      config.ScriptsURL,
		Destination:     config.Destination,
		Command:         command,
		Env:             buildEnv,
		PostExec:        b.postExecutor,
	}
	if !config.LayeredBuild {
		opts.Stdin = tarFile
	}

	go func(reader io.Reader) {
		scanner := bufio.NewReader(reader)
		for {
			text, err := scanner.ReadString('\n')
			if err != nil {
				// we're ignoring ErrClosedPipe, as this is information
				// the docker container ended streaming logs
				if glog.V(2) && err != io.ErrClosedPipe {
					glog.Errorf("Error reading docker stdout, %v", err)
				}
				break
			}
			if glog.V(2) || config.Quiet != true || command == api.Usage {
				glog.Info(text)
			}
		}
	}(outReader)

	go streamContainerError(errReader, &errOutput, config)

	err = b.docker.RunContainer(opts)
	if e, ok := err.(errors.ContainerError); ok {
		return errors.NewContainerError(config.BuilderImage, e.ErrorCode, errOutput)
	}
	return err
}

//.........这里部分代码省略.........
			return fmt.Sprintf("while [ ! -f %q ]; do sleep 0.5; done; %s; result=$?; source %[1]s; exit $result",
				"/tmp/rm-injections", cmd)
		}
		originalOnStart := opts.OnStart
		opts.OnStart = func(containerID string) error {
			defer close(injectionComplete)
			if err != nil {
				injectionError = err
				return err
			}
			glog.V(2).Info("starting the injections uploading ...")
			for _, s := range config.Injections {
				if err := builder.docker.UploadToContainer(s.Source, s.Destination, containerID); err != nil {
					injectionError = util.HandleInjectionError(s, err)
					return err
				}
			}
			if err := builder.docker.UploadToContainer(rmScript, "/tmp/rm-injections", containerID); err != nil {
				injectionError = util.HandleInjectionError(api.VolumeSpec{Source: rmScript, Destination: "/tmp/rm-injections"}, err)
				return err
			}
			if originalOnStart != nil {
				return originalOnStart(containerID)
			}
			return nil
		}
	} else {
		close(injectionComplete)
	}

	wg := sync.WaitGroup{}
	if !config.LayeredBuild {
		wg.Add(1)
		uploadDir := filepath.Join(config.WorkingDir, "upload")
		// TODO: be able to pass a stream directly to the Docker build to avoid the double temp hit
		r, w := io.Pipe()
		go func() {
			// reminder, multiple defers follow a stack, LIFO order of processing
			defer wg.Done()
			// Wait for the injections to complete and check the error. Do not start
			// streaming the sources when the injection failed.
			<-injectionComplete
			if injectionError != nil {
				return
			}
			glog.V(2).Info("starting the source uploading ...")
			var err error
			defer func() {
				w.CloseWithError(err)
				if r := recover(); r != nil {
					glog.Errorf("recovered panic: %#v", r)
				}
			}()
			err = builder.tar.CreateTarStream(uploadDir, false, w)
		}()

		opts.Stdin = r
	}

	go func(reader io.Reader) {
		scanner := bufio.NewReader(reader)
		// Precede build output with newline
		glog.Info()
		for {
			text, err := scanner.ReadString('\n')
			if err != nil {
				// we're ignoring ErrClosedPipe, as this is information
				// the docker container ended streaming logs
				if glog.Is(2) && err != io.ErrClosedPipe && err != io.EOF {
					glog.Errorf("Error reading docker stdout, %#v", err)
				}
				break
			}
			// Nothing is printed when the quiet option is set
			if config.Quiet {
				continue
			}
			glog.Info(strings.TrimSpace(text))
		}
		// Terminate build output with new line
		glog.Info()

	}(outReader)

	go dockerpkg.StreamContainerIO(errReader, &errOutput, func(a ...interface{}) { glog.Info(a...) })

	err := builder.docker.RunContainer(opts)
	if e, ok := err.(errors.ContainerError); ok {
		// even with deferred close above, close errReader now so we avoid data race condition on errOutput;
		// closing will cause StreamContainerIO to exit, thus releasing the writer in the equation
		errReader.Close()
		return errors.NewContainerError(config.BuilderImage, e.ErrorCode, errOutput)
	}
	// Do not wait for source input if the container times out.
	// FIXME: this potentially leaks a goroutine.
	if !util.IsTimeoutError(err) {
		wg.Wait()
	}
	return err
}

//.........这里部分代码省略.........
		}
		defer os.Remove(rmScript)
		opts.CommandOverrides = func(cmd string) string {
			return fmt.Sprintf("while [ ! -f %q ]; do sleep 0.5; done; %s; result=$?; source %[1]s; exit $result",
				"/tmp/rm-injections", cmd)
		}
		originalOnStart := opts.OnStart
		opts.OnStart = func(containerID string) error {
			defer close(injectionComplete)
			if err != nil {
				injectionError = err
				return err
			}
			glog.V(2).Info("starting the injections uploading ...")
			for _, s := range config.Injections {
				if err := b.docker.UploadToContainer(s.SourcePath, s.DestinationDir, containerID); err != nil {
					injectionError = util.HandleInjectionError(s, err)
					return err
				}
			}
			if err := b.docker.UploadToContainer(rmScript, "/tmp/rm-injections", containerID); err != nil {
				injectionError = util.HandleInjectionError(api.InjectPath{SourcePath: rmScript, DestinationDir: "/tmp/rm-injections"}, err)
				return err
			}
			if originalOnStart != nil {
				return originalOnStart(containerID)
			}
			return nil
		}
	} else {
		close(injectionComplete)
	}

	wg := sync.WaitGroup{}
	if !config.LayeredBuild {
		wg.Add(1)
		uploadDir := filepath.Join(config.WorkingDir, "upload")
		// TODO: be able to pass a stream directly to the Docker build to avoid the double temp hit
		r, w := io.Pipe()
		go func() {
			// Wait for the injections to complete and check the error. Do not start
			// streaming the sources when the injection failed.
			<-injectionComplete
			if injectionError != nil {
				wg.Done()
				return
			}
			glog.V(2).Info("starting the source uploading ...")
			var err error
			defer func() {
				w.CloseWithError(err)
				if r := recover(); r != nil {
					glog.Errorf("recovered panic: %#v", r)
				}
				wg.Done()
			}()
			err = b.tar.CreateTarStream(uploadDir, false, w)
		}()

		opts.Stdin = r
		defer wg.Wait()
	}

	go func(reader io.Reader) {
		scanner := bufio.NewReader(reader)
		for {
			text, err := scanner.ReadString('\n')
			if err != nil {
				// we're ignoring ErrClosedPipe, as this is information
				// the docker container ended streaming logs
				if glog.V(2) && err != io.ErrClosedPipe {
					glog.Errorf("Error reading docker stdout, %v", err)
				}
				break
			}
			// Nothing is printed when the quiet option is set
			if config.Quiet {
				continue
			}
			// The log level > 3 forces to use glog instead of printing to stdout
			if glog.V(3) {
				glog.Info(text)
				continue
			}
			fmt.Fprintf(os.Stdout, "%s\n", strings.TrimSpace(text))
		}
	}(outReader)

	go dockerpkg.StreamContainerIO(errReader, &errOutput, glog.Error)

	err = b.docker.RunContainer(opts)
	if util.IsTimeoutError(err) {
		// Cancel waiting for source input if the container timeouts
		wg.Done()
	}
	if e, ok := err.(errors.ContainerError); ok {
		return errors.NewContainerError(config.BuilderImage, e.ErrorCode, errOutput)
	}
	return err
}

// Execute runs the specified STI script in the builder image.
func (builder *STI) Execute(command string, user string, config *api.Config) error {
	glog.V(2).Infof("Using image name %s", config.BuilderImage)

	// we can't invoke this method before (for example in New() method)
	// because of later initialization of config.WorkingDir
	builder.env = createBuildEnvironment(config)

	errOutput := ""
	outReader, outWriter := io.Pipe()
	errReader, errWriter := io.Pipe()
	externalScripts := builder.externalScripts[command]
	// if LayeredBuild is called then all the scripts will be placed inside the image
	if config.LayeredBuild {
		externalScripts = false
	}

	opts := dockerpkg.RunContainerOptions{
		Image:  config.BuilderImage,
		Stdout: outWriter,
		Stderr: errWriter,
		// The PullImage is false because the PullImage function should be called
		// before we run the container
		PullImage:       false,
		ExternalScripts: externalScripts,
		ScriptsURL:      config.ScriptsURL,
		Destination:     config.Destination,
		Command:         command,
		Env:             builder.env,
		User:            user,
		PostExec:        builder.postExecutor,
		NetworkMode:     string(config.DockerNetworkMode),
		CGroupLimits:    config.CGroupLimits,
		CapDrop:         config.DropCapabilities,
		Binds:           config.BuildVolumes.AsBinds(),
	}

	// If there are injections specified, override the original assemble script
	// and wait till all injections are uploaded into the container that runs the
	// assemble script.
	injectionError := make(chan error)
	if len(config.Injections) > 0 && command == api.Assemble {
		workdir, err := builder.docker.GetImageWorkdir(config.BuilderImage)
		if err != nil {
			builder.result.BuildInfo.FailureReason = utilstatus.NewFailureReason(
				utilstatus.ReasonGenericS2IBuildFailed,
				utilstatus.ReasonMessageGenericS2iBuildFailed,
			)
			return err
		}
		config.Injections = util.FixInjectionsWithRelativePath(workdir, config.Injections)
		injectedFiles, err := util.ExpandInjectedFiles(builder.fs, config.Injections)
		if err != nil {
			builder.result.BuildInfo.FailureReason = utilstatus.NewFailureReason(
				utilstatus.ReasonInstallScriptsFailed,
				utilstatus.ReasonMessageInstallScriptsFailed,
			)
			return err
		}
		rmScript, err := util.CreateInjectedFilesRemovalScript(injectedFiles, "/tmp/rm-injections")
		if err != nil {
			builder.result.BuildInfo.FailureReason = utilstatus.NewFailureReason(
				utilstatus.ReasonGenericS2IBuildFailed,
				utilstatus.ReasonMessageGenericS2iBuildFailed,
			)
			return err
		}
		defer os.Remove(rmScript)
		opts.CommandOverrides = func(cmd string) string {
			return fmt.Sprintf("while [ ! -f %q ]; do sleep 0.5; done; %s; result=$?; source %[1]s; exit $result",
				"/tmp/rm-injections", cmd)
		}
		originalOnStart := opts.OnStart
		opts.OnStart = func(containerID string) error {
			defer close(injectionError)
			glog.V(2).Info("starting the injections uploading ...")
			for _, s := range config.Injections {
				if err := builder.docker.UploadToContainer(builder.fs, s.Source, s.Destination, containerID); err != nil {
					injectionError <- util.HandleInjectionError(s, err)
					return err
				}
			}
			if err := builder.docker.UploadToContainer(builder.fs, rmScript, "/tmp/rm-injections", containerID); err != nil {
				injectionError <- util.HandleInjectionError(api.VolumeSpec{Source: rmScript, Destination: "/tmp/rm-injections"}, err)
				return err
			}
			if originalOnStart != nil {
				return originalOnStart(containerID)
			}
			return nil
		}
	} else {
		close(injectionError)
	}

	if !config.LayeredBuild {
		r, w := io.Pipe()
		opts.Stdin = r

		go func() {
//.........这里部分代码省略.........