Golang dockerhelper.NewHelper函数代码示例

// Status prints the OpenShift cluster status
func (c *ClientStatusConfig) Status(f *clientcmd.Factory, out io.Writer) error {
	dockerClient, _, err := getDockerClient(out, c.DockerMachine, false)
	if err != nil {
		return errors.ErrNoDockerClient(err)
	}
	helper := dockerhelper.NewHelper(dockerClient, nil)

	container, running, err := helper.GetContainerState(openshift.OpenShiftContainer)
	if err != nil {
		return errors.NewError("cannot get state of OpenShift container %s", openshift.OpenShiftContainer).WithCause(err)
	}

	if !running {
		return errors.NewError("OpenShift cluster is not running")
	}

	healthy, err := isHealthy(f)
	if err != nil {
		return err
	}
	if !healthy {
		return errors.NewError("OpenShift cluster health check failed")
	}

	config, err := openshift.GetConfigFromContainer(dockerClient)
	if err != nil {
		return err
	}

	fmt.Print(status(container, config))

	return nil
}

// Stop stops the currently running origin container and any
// containers started by the node.
func (c *ClientStopConfig) Stop(out io.Writer) error {
	client, err := c.getDockerClient(out)
	if err != nil {
		return err
	}
	helper := dockerhelper.NewHelper(client, nil)
	glog.V(4).Infof("Killing previous socat tunnel")
	err = openshift.KillExistingSocat()
	if err != nil {
		glog.V(1).Infof("error: cannot kill socat: %v", err)
	}
	glog.V(4).Infof("Stopping and removing origin container")
	if err = helper.StopAndRemoveContainer("origin"); err != nil {
		glog.V(1).Infof("Error stopping origin container: %v", err)
	}
	names, err := helper.ListContainerNames()
	if err != nil {
		return err
	}
	for _, name := range names {
		if _, _, err = dockertools.ParseDockerName(name); err != nil {
			continue
		}
		name = strings.TrimLeft(name, "/")
		glog.V(4).Infof("Stopping container %s", name)
		if err = client.StopContainer(name, 0); err != nil {
			glog.V(1).Infof("Error stopping container %s: %v", name, err)
		}
		glog.V(4).Infof("Removing container %s", name)
		if err = helper.RemoveContainer(name); err != nil {
			glog.V(1).Infof("Error removing container %s: %v", name, err)
		}
	}
	return nil
}

// NewHelper creates a new OpenShift helper
func NewHelper(client *docker.Client, hostHelper *host.HostHelper, image, containerName, publicHostname, routingSuffix string) *Helper {
	return &Helper{
		dockerHelper:  dockerhelper.NewHelper(client),
		execHelper:    exec.NewExecHelper(client, containerName),
		hostHelper:    hostHelper,
		runHelper:     run.NewRunHelper(client),
		image:         image,
		containerName: containerName,
		publicHost:    publicHostname,
		routingSuffix: routingSuffix,
	}
}

// DockerHelper returns a helper object to work with the Docker client
func (c *ClientStartConfig) DockerHelper() *dockerhelper.Helper {
	if c.dockerHelper == nil {
		c.dockerHelper = dockerhelper.NewHelper(c.dockerClient, c.engineAPIClient)
	}
	return c.dockerHelper
}