Golang golxc.Container类代码示例

func contains(lcs []golxc.Container, lc golxc.Container) bool {
	for _, clc := range lcs {
		if clc.Name() == lc.Name() {
			return true
		}
	}
	return false
}

func createContainer(
	lxcContainer golxc.Container,
	directory string,
	networkConfig *container.NetworkConfig,
	extraCreateArgs, templateParams []string,
	caCert []byte,
) error {
	// Generate initial lxc.conf with networking settings.
	netConfig := generateNetworkConfig(networkConfig)
	configPath := filepath.Join(directory, "lxc.conf")
	if err := ioutil.WriteFile(configPath, []byte(netConfig), 0644); err != nil {
		return errors.Annotatef(err, "failed to write container config %q", configPath)
	}
	logger.Tracef("wrote initial config %q for container %q", configPath, lxcContainer.Name())

	var err error
	var execEnv []string = nil
	var closer func()
	if caCert != nil {
		execEnv, closer, err = wgetEnvironment(caCert)
		if err != nil {
			return errors.Annotatef(err, "failed to get environment for wget execution")
		}
		defer closer()
	}

	// Create the container.
	logger.Debugf("creating lxc container %q", lxcContainer.Name())
	logger.Debugf("lxc-create template params: %v", templateParams)
	if err := lxcContainer.Create(configPath, defaultTemplate, extraCreateArgs, templateParams, execEnv); err != nil {
		return errors.Annotatef(err, "lxc container creation failed")
	}
	return nil
}

// CreateContainer creates or clones an LXC container.
func (manager *containerManager) CreateContainer(
	instanceConfig *instancecfg.InstanceConfig,
	series string,
	networkConfig *container.NetworkConfig,
	storageConfig *container.StorageConfig,
) (inst instance.Instance, _ *instance.HardwareCharacteristics, err error) {
	// Check our preconditions
	if manager == nil {
		panic("manager is nil")
	} else if series == "" {
		panic("series not set")
	} else if networkConfig == nil {
		panic("networkConfig is nil")
	} else if storageConfig == nil {
		panic("storageConfig is nil")
	}

	// Log how long the start took
	defer func(start time.Time) {
		if err == nil {
			logger.Tracef("container %q started: %v", inst.Id(), time.Now().Sub(start))
		}
	}(time.Now())

	name := names.NewMachineTag(instanceConfig.MachineId).String()
	if manager.name != "" {
		name = fmt.Sprintf("%s-%s", manager.name, name)
	}

	// Create the cloud-init.
	directory, err := container.NewDirectory(name)
	if err != nil {
		return nil, nil, errors.Annotate(err, "failed to create a directory for the container")
	}
	logger.Tracef("write cloud-init")
	userDataFilename, err := containerinit.WriteUserData(instanceConfig, networkConfig, directory)
	if err != nil {
		return nil, nil, errors.Annotate(err, "failed to write user data")
	}

	var lxcContainer golxc.Container
	if manager.createWithClone {
		templateContainer, err := EnsureCloneTemplate(
			manager.backingFilesystem,
			series,
			networkConfig,
			instanceConfig.AuthorizedKeys,
			instanceConfig.AptProxySettings,
			instanceConfig.AptMirror,
			instanceConfig.EnableOSRefreshUpdate,
			instanceConfig.EnableOSUpgrade,
			manager.imageURLGetter,
			manager.useAUFS,
		)
		if err != nil {
			return nil, nil, errors.Annotate(err, "failed to retrieve the template to clone")
		}
		templateParams := []string{
			"--debug",                      // Debug errors in the cloud image
			"--userdata", userDataFilename, // Our groovey cloud-init
			"--hostid", name, // Use the container name as the hostid
		}
		var extraCloneArgs []string
		if manager.backingFilesystem == Btrfs || manager.useAUFS {
			extraCloneArgs = append(extraCloneArgs, "--snapshot")
		}
		if manager.backingFilesystem != Btrfs && manager.useAUFS {
			extraCloneArgs = append(extraCloneArgs, "--backingstore", "aufs")
		}

		lock, err := AcquireTemplateLock(templateContainer.Name(), "clone")
		if err != nil {
			return nil, nil, errors.Annotate(err, "failed to acquire lock on template")
		}
		defer lock.Unlock()

		// Ensure the run-time effective config of the template
		// container has correctly ordered network settings, otherwise
		// Clone() below will fail. This is needed in case we haven't
		// created a new template now but are reusing an existing one.
		// See LP bug #1414016.
		configPath := containerConfigFilename(templateContainer.Name())
		if _, err := reorderNetworkConfig(configPath); err != nil {
			return nil, nil, errors.Annotate(err, "failed to reorder network settings")
		}

		lxcContainer, err = templateContainer.Clone(name, extraCloneArgs, templateParams)
		if err != nil {
			return nil, nil, errors.Annotate(err, "lxc container cloning failed")
		}
	} else {
		// Note here that the lxcObjectFacotry only returns a valid container
		// object, and doesn't actually construct the underlying lxc container on
		// disk.
		lxcContainer = LxcObjectFactory.New(name)
		templateParams := []string{
			"--debug",                      // Debug errors in the cloud image
			"--userdata", userDataFilename, // Our groovey cloud-init
			"--hostid", name, // Use the container name as the hostid
//.........这里部分代码省略.........