Golang Config.Injections方法代码示例

// 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()
	defer outReader.Close()
	defer outWriter.Close()
	defer errReader.Close()
	defer errWriter.Close()
	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,
		Entrypoint: DefaultEntrypoint,
		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.
	injectionComplete := make(chan struct{})
	var injectionError error
	if len(config.Injections) > 0 && command == api.Assemble {
		workdir, err := builder.docker.GetImageWorkdir(config.BuilderImage)
		if err != nil {
			return err
		}
		config.Injections = util.FixInjectionsWithRelativePath(workdir, config.Injections)
		injectedFiles, err := util.ExpandInjectedFiles(config.Injections)
		if err != nil {
			return err
		}
		rmScript, err := util.CreateInjectedFilesRemovalScript(injectedFiles, "/tmp/rm-injections")
		if err != nil {
			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(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() {
//.........这里部分代码省略.........

// 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.........