Пример #1
0
// Create creates a new container from the given configuration with a given name.
func (daemon *Daemon) Create(config *runconfig.Config, hostConfig *runconfig.HostConfig, name string) (*Container, []string, error) {
	var (
		container *Container
		warnings  []string
		img       *image.Image
		imgID     string
		err       error
	)

	if config.Image != "" {
		img, err = daemon.repositories.LookupImage(config.Image)
		if err != nil {
			return nil, nil, err
		}
		if err = img.CheckDepth(); err != nil {
			return nil, nil, err
		}
		imgID = img.ID
	}

	if warnings, err = daemon.mergeAndVerifyConfig(config, img); err != nil {
		return nil, nil, err
	}
	if hostConfig == nil {
		hostConfig = &runconfig.HostConfig{}
	}
	if hostConfig.SecurityOpt == nil {
		hostConfig.SecurityOpt, err = daemon.GenerateSecurityOpt(hostConfig.IpcMode, hostConfig.PidMode)
		if err != nil {
			return nil, nil, err
		}
	}
	if container, err = daemon.newContainer(name, config, imgID); err != nil {
		return nil, nil, err
	}
	if err := daemon.Register(container); err != nil {
		return nil, nil, err
	}
	if err := daemon.createRootfs(container); err != nil {
		return nil, nil, err
	}
	if hostConfig != nil {
		if err := daemon.setHostConfig(container, hostConfig); err != nil {
			return nil, nil, err
		}
	}
	if err := container.Mount(); err != nil {
		return nil, nil, err
	}
	defer container.Unmount()
	if err := container.prepareVolumes(); err != nil {
		return nil, nil, err
	}
	if err := container.ToDisk(); err != nil {
		return nil, nil, err
	}
	return container, warnings, nil
}
Пример #2
0
// Create creates a new container from the given configuration with a given name.
func (daemon *Daemon) Create(config *runconfig.Config, hostConfig *runconfig.HostConfig, name string) (*Container, []string, error) {
	var (
		container *Container
		warnings  []string
		img       *image.Image
		imgID     string
		err       error
	)

	if config.Image != "" {
		img, err = daemon.repositories.LookupImage(config.Image)
		if err != nil {
			return nil, nil, err
		}
		if err = img.CheckDepth(); err != nil {
			return nil, nil, err
		}
		imgID = img.ID
	}

	if err := daemon.mergeAndVerifyConfig(config, img); err != nil {
		return nil, nil, err
	}
	if !config.NetworkDisabled && daemon.SystemConfig().IPv4ForwardingDisabled {
		warnings = append(warnings, "IPv4 forwarding is disabled.")
	}
	if hostConfig == nil {
		hostConfig = &runconfig.HostConfig{}
	}
	if hostConfig.SecurityOpt == nil {
		hostConfig.SecurityOpt, err = daemon.GenerateSecurityOpt(hostConfig.IpcMode, hostConfig.PidMode)
		if err != nil {
			return nil, nil, err
		}
	}
	if container, err = daemon.newContainer(name, config, imgID); err != nil {
		return nil, nil, err
	}
	if err := daemon.Register(container); err != nil {
		return nil, nil, err
	}
	if err := daemon.createRootfs(container); err != nil {
		return nil, nil, err
	}
	if err := daemon.setHostConfig(container, hostConfig); err != nil {
		return nil, nil, err
	}
	if err := container.Mount(); err != nil {
		return nil, nil, err
	}
	defer container.Unmount()

	for spec := range config.Volumes {
		var (
			name, destination string
			parts             = strings.Split(spec, ":")
		)
		switch len(parts) {
		case 2:
			name, destination = parts[0], filepath.Clean(parts[1])
		default:
			name = stringid.GenerateRandomID()
			destination = filepath.Clean(parts[0])
		}
		// Skip volumes for which we already have something mounted on that
		// destination because of a --volume-from.
		if container.isDestinationMounted(destination) {
			continue
		}
		path, err := container.GetResourcePath(destination)
		if err != nil {
			return nil, nil, err
		}

		stat, err := os.Stat(path)
		if err == nil && !stat.IsDir() {
			return nil, nil, fmt.Errorf("cannot mount volume over existing file, file exists %s", path)
		}

		v, err := createVolume(name, config.VolumeDriver)
		if err != nil {
			return nil, nil, err
		}
		if err := label.Relabel(v.Path(), container.MountLabel, "z"); err != nil {
			return nil, nil, err
		}

		if err := container.copyImagePathContent(v, destination); err != nil {
			return nil, nil, err
		}

		container.addMountPointWithVolume(destination, v, true)
	}
	if err := container.ToDisk(); err != nil {
		return nil, nil, err
	}
	return container, warnings, nil
}