Esempio n. 1
0
// ContainerStop looks for the given container and terminates it,
// waiting the given number of seconds before forcefully killing the
// container. If a negative number of seconds is given, ContainerStop
// will wait for a graceful termination. An error is returned if the
// container is not found, is already stopped, or if there is a
// problem stopping the container.
func (daemon *Daemon) ContainerStop(name string, seconds int) error {
	container, err := daemon.GetContainer(name)
	if err != nil {
		return err
	}
	if !container.IsRunning() {
		err := fmt.Errorf("Container %s is already stopped", name)
		return errors.NewErrorWithStatusCode(err, http.StatusNotModified)
	}
	if err := daemon.containerStop(container, seconds); err != nil {
		return fmt.Errorf("Cannot stop container %s: %v", name, err)
	}
	return nil
}
Esempio n. 2
0
// ContainerStart starts a container.
func (daemon *Daemon) ContainerStart(name string, hostConfig *containertypes.HostConfig, validateHostname bool, checkpoint string) error {
	container, err := daemon.GetContainer(name)
	if err != nil {
		return err
	}

	if container.IsPaused() {
		return fmt.Errorf("Cannot start a paused container, try unpause instead.")
	}

	if container.IsRunning() {
		err := fmt.Errorf("Container already started")
		return errors.NewErrorWithStatusCode(err, http.StatusNotModified)
	}

	// Windows does not have the backwards compatibility issue here.
	if runtime.GOOS != "windows" {
		// This is kept for backward compatibility - hostconfig should be passed when
		// creating a container, not during start.
		if hostConfig != nil {
			logrus.Warn("DEPRECATED: Setting host configuration options when the container starts is deprecated and has been removed in Docker 1.12")
			oldNetworkMode := container.HostConfig.NetworkMode
			if err := daemon.setSecurityOptions(container, hostConfig); err != nil {
				return err
			}
			if err := daemon.mergeAndVerifyLogConfig(&hostConfig.LogConfig); err != nil {
				return err
			}
			if err := daemon.setHostConfig(container, hostConfig); err != nil {
				return err
			}
			newNetworkMode := container.HostConfig.NetworkMode
			if string(oldNetworkMode) != string(newNetworkMode) {
				// if user has change the network mode on starting, clean up the
				// old networks. It is a deprecated feature and has been removed in Docker 1.12
				container.NetworkSettings.Networks = nil
				if err := container.ToDisk(); err != nil {
					return err
				}
			}
			container.InitDNSHostConfig()
		}
	} else {
		if hostConfig != nil {
			return fmt.Errorf("Supplying a hostconfig on start is not supported. It should be supplied on create")
		}
	}

	// check if hostConfig is in line with the current system settings.
	// It may happen cgroups are umounted or the like.
	if _, err = daemon.verifyContainerSettings(container.HostConfig, nil, false, validateHostname); err != nil {
		return err
	}
	// Adapt for old containers in case we have updates in this function and
	// old containers never have chance to call the new function in create stage.
	if err := daemon.adaptContainerSettings(container.HostConfig, false); err != nil {
		return err
	}

	return daemon.containerStart(container, checkpoint, true)
}
Esempio n. 3
0
func experimentalHandler(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
	return apierrors.NewErrorWithStatusCode(errExperimentalFeature, http.StatusNotImplemented)
}