Example #1
0
// Create is the entrypoint to create a container from a spec, and if successfully
// created, start it too.
func (clnt *client) Create(containerID string, spec Spec, options ...CreateOption) error {
	logrus.Debugln("LCD client.Create() with spec", spec)

	cu := &containerInit{
		SystemType: "Container",
		Name:       containerID,
		Owner:      defaultOwner,

		VolumePath:              spec.Root.Path,
		IgnoreFlushesDuringBoot: spec.Windows.FirstStart,
		LayerFolderPath:         spec.Windows.LayerFolder,
		HostName:                spec.Hostname,
	}

	if spec.Windows.Networking != nil {
		cu.EndpointList = spec.Windows.Networking.EndpointList
	}

	if spec.Windows.Resources != nil {
		if spec.Windows.Resources.CPU != nil {
			if spec.Windows.Resources.CPU.Shares != nil {
				cu.ProcessorWeight = *spec.Windows.Resources.CPU.Shares
			}
			if spec.Windows.Resources.CPU.Percent != nil {
				cu.ProcessorMaximum = *spec.Windows.Resources.CPU.Percent * 100 // ProcessorMaximum is a value between 1 and 10000
			}
		}
		if spec.Windows.Resources.Memory != nil {
			if spec.Windows.Resources.Memory.Limit != nil {
				cu.MemoryMaximumInMB = *spec.Windows.Resources.Memory.Limit / 1024 / 1024
			}
		}
		if spec.Windows.Resources.Storage != nil {
			if spec.Windows.Resources.Storage.Bps != nil {
				cu.StorageBandwidthMaximum = *spec.Windows.Resources.Storage.Bps
			}
			if spec.Windows.Resources.Storage.Iops != nil {
				cu.StorageIOPSMaximum = *spec.Windows.Resources.Storage.Iops
			}
			if spec.Windows.Resources.Storage.SandboxSize != nil {
				cu.StorageSandboxSize = *spec.Windows.Resources.Storage.SandboxSize
			}
		}
	}

	if spec.Windows.HvRuntime != nil {
		cu.HvPartition = true
		cu.HvRuntime = &hvRuntime{
			ImagePath: spec.Windows.HvRuntime.ImagePath,
		}
	}

	for _, option := range options {
		if s, ok := option.(*ServicingOption); ok {
			cu.Servicing = s.IsServicing
			break
		}
	}

	if cu.HvPartition {
		cu.SandboxPath = filepath.Dir(spec.Windows.LayerFolder)
	} else {
		cu.VolumePath = spec.Root.Path
		cu.LayerFolderPath = spec.Windows.LayerFolder
	}

	for _, layerPath := range spec.Windows.LayerPaths {
		_, filename := filepath.Split(layerPath)
		g, err := hcsshim.NameToGuid(filename)
		if err != nil {
			return err
		}
		cu.Layers = append(cu.Layers, layer{
			ID:   g.ToString(),
			Path: layerPath,
		})
	}

	// Add the mounts (volumes, bind mounts etc) to the structure
	mds := make([]mappedDir, len(spec.Mounts))
	for i, mount := range spec.Mounts {
		mds[i] = mappedDir{
			HostPath:      mount.Source,
			ContainerPath: mount.Destination,
			ReadOnly:      mount.Readonly}
	}
	cu.MappedDirectories = mds

	configurationb, err := json.Marshal(cu)
	if err != nil {
		return err
	}

	// Create the compute system
	configuration := string(configurationb)
	if err := hcsshim.CreateComputeSystem(containerID, configuration); err != nil {
		return err
	}

	// Construct a container object for calling start on it.
	container := &container{
		containerCommon: containerCommon{
			process: process{
				processCommon: processCommon{
					containerID:  containerID,
					client:       clnt,
					friendlyName: InitFriendlyName,
				},
				commandLine: strings.Join(spec.Process.Args, " "),
			},
			processes: make(map[string]*process),
		},
		ociSpec: spec,
	}

	container.options = options
	for _, option := range options {
		if err := option.Apply(container); err != nil {
			logrus.Error(err)
		}
	}

	// Call start, and if it fails, delete the container from our
	// internal structure, and also keep HCS in sync by deleting the
	// container there.
	logrus.Debugf("Create() id=%s, Calling start()", containerID)
	if err := container.start(); err != nil {
		clnt.deleteContainer(containerID)
		return err
	}

	logrus.Debugf("Create() id=%s completed successfully", containerID)
	return nil

}
Example #2
0
File: run.go Project: remh/docker
// Run implements the exec driver Driver interface
func (d *Driver) Run(c *execdriver.Command, pipes *execdriver.Pipes, startCallback execdriver.StartCallback) (execdriver.ExitStatus, error) {

	var (
		term                           execdriver.Terminal
		err                            error
		inListen, outListen, errListen *npipe.PipeListener
	)

	// Make sure the client isn't asking for options which aren't supported
	err = checkSupportedOptions(c)
	if err != nil {
		return execdriver.ExitStatus{ExitCode: -1}, err
	}

	cu := &containerInit{
		SystemType:              "Container",
		Name:                    c.ID,
		IsDummy:                 dummyMode,
		VolumePath:              c.Rootfs,
		IgnoreFlushesDuringBoot: c.FirstStart,
		LayerFolderPath:         c.LayerFolder,
	}

	for i := 0; i < len(c.LayerPaths); i++ {
		cu.Layers = append(cu.Layers, layer{
			ID:   hcsshim.NewGUID(c.LayerPaths[i]).ToString(),
			Path: c.LayerPaths[i],
		})
	}

	// TODO Windows. At some point, when there is CLI on docker run to
	// enable the IP Address of the container to be passed into docker run,
	// the IP Address needs to be wired through to HCS in the JSON. It
	// would be present in c.Network.Interface.IPAddress. See matching
	// TODO in daemon\container_windows.go, function populateCommand.

	if c.Network.Interface != nil {

		var pbs []portBinding

		// Enumerate through the port bindings specified by the user and convert
		// them into the internal structure matching the JSON blob that can be
		// understood by the HCS.
		for i, v := range c.Network.Interface.PortBindings {
			proto := strings.ToUpper(i.Proto())
			if proto != "TCP" && proto != "UDP" {
				return execdriver.ExitStatus{ExitCode: -1}, fmt.Errorf("invalid protocol %s", i.Proto())
			}

			if len(v) > 1 {
				return execdriver.ExitStatus{ExitCode: -1}, fmt.Errorf("Windows does not support more than one host port in NAT settings")
			}

			for _, v2 := range v {
				var (
					iPort, ePort int
					err          error
				)
				if len(v2.HostIP) != 0 {
					return execdriver.ExitStatus{ExitCode: -1}, fmt.Errorf("Windows does not support host IP addresses in NAT settings")
				}
				if ePort, err = strconv.Atoi(v2.HostPort); err != nil {
					return execdriver.ExitStatus{ExitCode: -1}, fmt.Errorf("invalid container port %s: %s", v2.HostPort, err)
				}
				if iPort, err = strconv.Atoi(i.Port()); err != nil {
					return execdriver.ExitStatus{ExitCode: -1}, fmt.Errorf("invalid internal port %s: %s", i.Port(), err)
				}
				if iPort < 0 || iPort > 65535 || ePort < 0 || ePort > 65535 {
					return execdriver.ExitStatus{ExitCode: -1}, fmt.Errorf("specified NAT port is not in allowed range")
				}
				pbs = append(pbs,
					portBinding{ExternalPort: ePort,
						InternalPort: iPort,
						Protocol:     proto})
			}
		}

		// TODO Windows: TP3 workaround. Allow the user to override the name of
		// the Container NAT device through an environment variable. This will
		// ultimately be a global daemon parameter on Windows, similar to -b
		// for the name of the virtual switch (aka bridge).
		cn := os.Getenv("DOCKER_CONTAINER_NAT")
		if len(cn) == 0 {
			cn = defaultContainerNAT
		}

		dev := device{
			DeviceType: "Network",
			Connection: &networkConnection{
				NetworkName: c.Network.Interface.Bridge,
				// TODO Windows: Fixme, next line. Needs HCS fix.
				EnableNat: false,
				Nat: natSettings{
					Name:         cn,
					PortBindings: pbs,
				},
			},
		}

		if c.Network.Interface.MacAddress != "" {
			windowsStyleMAC := strings.Replace(
				c.Network.Interface.MacAddress, ":", "-", -1)
			dev.Settings = networkSettings{
				MacAddress: windowsStyleMAC,
			}
		}
		cu.Devices = append(cu.Devices, dev)
	} else {
		logrus.Debugln("No network interface")
	}

	configurationb, err := json.Marshal(cu)
	if err != nil {
		return execdriver.ExitStatus{ExitCode: -1}, err
	}

	configuration := string(configurationb)

	err = hcsshim.CreateComputeSystem(c.ID, configuration)
	if err != nil {
		logrus.Debugln("Failed to create temporary container ", err)
		return execdriver.ExitStatus{ExitCode: -1}, err
	}

	// Start the container
	logrus.Debugln("Starting container ", c.ID)
	err = hcsshim.StartComputeSystem(c.ID)
	if err != nil {
		logrus.Errorf("Failed to start compute system: %s", err)
		return execdriver.ExitStatus{ExitCode: -1}, err
	}
	defer func() {
		// Stop the container

		if terminateMode {
			logrus.Debugf("Terminating container %s", c.ID)
			if err := hcsshim.TerminateComputeSystem(c.ID); err != nil {
				// IMPORTANT: Don't fail if fails to change state. It could already
				// have been stopped through kill().
				// Otherwise, the docker daemon will hang in job wait()
				logrus.Warnf("Ignoring error from TerminateComputeSystem %s", err)
			}
		} else {
			logrus.Debugf("Shutting down container %s", c.ID)
			if err := hcsshim.ShutdownComputeSystem(c.ID); err != nil {
				// IMPORTANT: Don't fail if fails to change state. It could already
				// have been stopped through kill().
				// Otherwise, the docker daemon will hang in job wait()
				logrus.Warnf("Ignoring error from ShutdownComputeSystem %s", err)
			}
		}
	}()

	// We use a different pipe name between real and dummy mode in the HCS
	var serverPipeFormat, clientPipeFormat string
	if dummyMode {
		clientPipeFormat = `\\.\pipe\docker-run-%[1]s-%[2]s`
		serverPipeFormat = clientPipeFormat
	} else {
		clientPipeFormat = `\\.\pipe\docker-run-%[2]s`
		serverPipeFormat = `\\.\Containers\%[1]s\Device\NamedPipe\docker-run-%[2]s`
	}

	createProcessParms := hcsshim.CreateProcessParams{
		EmulateConsole:   c.ProcessConfig.Tty,
		WorkingDirectory: c.WorkingDir,
		ConsoleSize:      c.ProcessConfig.ConsoleSize,
	}

	// Configure the environment for the process
	createProcessParms.Environment = setupEnvironmentVariables(c.ProcessConfig.Env)

	// Connect stdin
	if pipes.Stdin != nil {
		stdInPipe := fmt.Sprintf(serverPipeFormat, c.ID, "stdin")
		createProcessParms.StdInPipe = fmt.Sprintf(clientPipeFormat, c.ID, "stdin")

		// Listen on the named pipe
		inListen, err = npipe.Listen(stdInPipe)
		if err != nil {
			logrus.Errorf("stdin failed to listen on %s err=%s", stdInPipe, err)
			return execdriver.ExitStatus{ExitCode: -1}, err
		}
		defer inListen.Close()

		// Launch a goroutine to do the accept. We do this so that we can
		// cause an otherwise blocking goroutine to gracefully close when
		// the caller (us) closes the listener
		go stdinAccept(inListen, stdInPipe, pipes.Stdin)
	}

	// Connect stdout
	stdOutPipe := fmt.Sprintf(serverPipeFormat, c.ID, "stdout")
	createProcessParms.StdOutPipe = fmt.Sprintf(clientPipeFormat, c.ID, "stdout")

	outListen, err = npipe.Listen(stdOutPipe)
	if err != nil {
		logrus.Errorf("stdout failed to listen on %s err=%s", stdOutPipe, err)
		return execdriver.ExitStatus{ExitCode: -1}, err
	}
	defer outListen.Close()
	go stdouterrAccept(outListen, stdOutPipe, pipes.Stdout)

	// No stderr on TTY.
	if !c.ProcessConfig.Tty {
		// Connect stderr
		stdErrPipe := fmt.Sprintf(serverPipeFormat, c.ID, "stderr")
		createProcessParms.StdErrPipe = fmt.Sprintf(clientPipeFormat, c.ID, "stderr")
		errListen, err = npipe.Listen(stdErrPipe)
		if err != nil {
			logrus.Errorf("stderr failed to listen on %s err=%s", stdErrPipe, err)
			return execdriver.ExitStatus{ExitCode: -1}, err
		}
		defer errListen.Close()
		go stdouterrAccept(errListen, stdErrPipe, pipes.Stderr)
	}

	// This should get caught earlier, but just in case - validate that we
	// have something to run
	if c.ProcessConfig.Entrypoint == "" {
		err = errors.New("No entrypoint specified")
		logrus.Error(err)
		return execdriver.ExitStatus{ExitCode: -1}, err
	}

	// Build the command line of the process
	createProcessParms.CommandLine = c.ProcessConfig.Entrypoint
	for _, arg := range c.ProcessConfig.Arguments {
		logrus.Debugln("appending ", arg)
		createProcessParms.CommandLine += " " + arg
	}
	logrus.Debugf("CommandLine: %s", createProcessParms.CommandLine)

	// Start the command running in the container.
	var pid uint32
	pid, err = hcsshim.CreateProcessInComputeSystem(c.ID, createProcessParms)

	if err != nil {
		logrus.Errorf("CreateProcessInComputeSystem() failed %s", err)
		return execdriver.ExitStatus{ExitCode: -1}, err
	}

	//Save the PID as we'll need this in Kill()
	logrus.Debugf("PID %d", pid)
	c.ContainerPid = int(pid)

	if c.ProcessConfig.Tty {
		term = NewTtyConsole(c.ID, pid)
	} else {
		term = NewStdConsole()
	}
	c.ProcessConfig.Terminal = term

	// Maintain our list of active containers. We'll need this later for exec
	// and other commands.
	d.Lock()
	d.activeContainers[c.ID] = &activeContainer{
		command: c,
	}
	d.Unlock()

	// Invoke the start callback
	if startCallback != nil {
		startCallback(&c.ProcessConfig, int(pid))
	}

	var exitCode int32
	exitCode, err = hcsshim.WaitForProcessInComputeSystem(c.ID, pid)
	if err != nil {
		logrus.Errorf("Failed to WaitForProcessInComputeSystem %s", err)
		return execdriver.ExitStatus{ExitCode: -1}, err
	}

	logrus.Debugf("Exiting Run() exitCode %d id=%s", exitCode, c.ID)
	return execdriver.ExitStatus{ExitCode: int(exitCode)}, nil
}
Example #3
0
// Run implements the exec driver Driver interface
func (d *Driver) Run(c *execdriver.Command, pipes *execdriver.Pipes, hooks execdriver.Hooks) (execdriver.ExitStatus, error) {

	var (
		term execdriver.Terminal
		err  error
	)

	cu := &containerInit{
		SystemType:              "Container",
		Name:                    c.ID,
		Owner:                   defaultOwner,
		IsDummy:                 dummyMode,
		VolumePath:              c.Rootfs,
		IgnoreFlushesDuringBoot: c.FirstStart,
		LayerFolderPath:         c.LayerFolder,
		ProcessorWeight:         c.Resources.CPUShares,
		HostName:                c.Hostname,
	}

	cu.HvPartition = c.HvPartition

	if cu.HvPartition {
		cu.SandboxPath = filepath.Dir(c.LayerFolder)
	} else {
		cu.VolumePath = c.Rootfs
		cu.LayerFolderPath = c.LayerFolder
	}

	for _, layerPath := range c.LayerPaths {
		_, filename := filepath.Split(layerPath)
		g, err := hcsshim.NameToGuid(filename)
		if err != nil {
			return execdriver.ExitStatus{ExitCode: -1}, err
		}
		cu.Layers = append(cu.Layers, layer{
			ID:   g.ToString(),
			Path: layerPath,
		})
	}

	// Add the mounts (volumes, bind mounts etc) to the structure
	mds := make([]mappedDir, len(c.Mounts))
	for i, mount := range c.Mounts {
		mds[i] = mappedDir{
			HostPath:      mount.Source,
			ContainerPath: mount.Destination,
			ReadOnly:      !mount.Writable}
	}
	cu.MappedDirectories = mds

	// TODO Windows. At some point, when there is CLI on docker run to
	// enable the IP Address of the container to be passed into docker run,
	// the IP Address needs to be wired through to HCS in the JSON. It
	// would be present in c.Network.Interface.IPAddress. See matching
	// TODO in daemon\container_windows.go, function populateCommand.

	if c.Network.Interface != nil {

		var pbs []portBinding

		// Enumerate through the port bindings specified by the user and convert
		// them into the internal structure matching the JSON blob that can be
		// understood by the HCS.
		for i, v := range c.Network.Interface.PortBindings {
			proto := strings.ToUpper(i.Proto())
			if proto != "TCP" && proto != "UDP" {
				return execdriver.ExitStatus{ExitCode: -1}, fmt.Errorf("invalid protocol %s", i.Proto())
			}

			if len(v) > 1 {
				return execdriver.ExitStatus{ExitCode: -1}, fmt.Errorf("Windows does not support more than one host port in NAT settings")
			}

			for _, v2 := range v {
				var (
					iPort, ePort int
					err          error
				)
				if len(v2.HostIP) != 0 {
					return execdriver.ExitStatus{ExitCode: -1}, fmt.Errorf("Windows does not support host IP addresses in NAT settings")
				}
				if ePort, err = strconv.Atoi(v2.HostPort); err != nil {
					return execdriver.ExitStatus{ExitCode: -1}, fmt.Errorf("invalid container port %s: %s", v2.HostPort, err)
				}
				if iPort, err = strconv.Atoi(i.Port()); err != nil {
					return execdriver.ExitStatus{ExitCode: -1}, fmt.Errorf("invalid internal port %s: %s", i.Port(), err)
				}
				if iPort < 0 || iPort > 65535 || ePort < 0 || ePort > 65535 {
					return execdriver.ExitStatus{ExitCode: -1}, fmt.Errorf("specified NAT port is not in allowed range")
				}
				pbs = append(pbs,
					portBinding{ExternalPort: ePort,
						InternalPort: iPort,
						Protocol:     proto})
			}
		}

		// TODO Windows: TP3 workaround. Allow the user to override the name of
		// the Container NAT device through an environment variable. This will
		// ultimately be a global daemon parameter on Windows, similar to -b
		// for the name of the virtual switch (aka bridge).
		cn := os.Getenv("DOCKER_CONTAINER_NAT")
		if len(cn) == 0 {
			cn = defaultContainerNAT
		}

		dev := device{
			DeviceType: "Network",
			Connection: &networkConnection{
				NetworkName: c.Network.Interface.Bridge,
				// TODO Windows: Fixme, next line. Needs HCS fix.
				EnableNat: false,
				Nat: natSettings{
					Name:         cn,
					PortBindings: pbs,
				},
			},
		}

		if c.Network.Interface.MacAddress != "" {
			windowsStyleMAC := strings.Replace(
				c.Network.Interface.MacAddress, ":", "-", -1)
			dev.Settings = networkSettings{
				MacAddress: windowsStyleMAC,
			}
		}
		cu.Devices = append(cu.Devices, dev)
	} else {
		logrus.Debugln("No network interface")
	}

	configurationb, err := json.Marshal(cu)
	if err != nil {
		return execdriver.ExitStatus{ExitCode: -1}, err
	}

	configuration := string(configurationb)

	// TODO Windows TP5 timeframe. Remove when TP4 is no longer supported.
	// The following a workaround for Windows TP4 which has a networking
	// bug which fairly frequently returns an error. Back off and retry.
	maxAttempts := 1
	if TP4RetryHack {
		maxAttempts = 5
	}
	i := 0
	for i < maxAttempts {
		i++
		err = hcsshim.CreateComputeSystem(c.ID, configuration)
		if err != nil {
			if TP4RetryHack {
				if !strings.Contains(err.Error(), `Win32 API call returned error r1=0x800401f3`) && // Invalid class string
					!strings.Contains(err.Error(), `Win32 API call returned error r1=0x80070490`) && // Element not found
					!strings.Contains(err.Error(), `Win32 API call returned error r1=0x80070002`) && // The system cannot find the file specified
					!strings.Contains(err.Error(), `Win32 API call returned error r1=0x800704c6`) && // The network is not present or not started
					!strings.Contains(err.Error(), `Win32 API call returned error r1=0x800700a1`) { // The specified path is invalid
					logrus.Debugln("Failed to create temporary container ", err)
					return execdriver.ExitStatus{ExitCode: -1}, err
				}
				logrus.Warnf("Invoking Windows TP4 retry hack (%d of %d)", i, maxAttempts-1)
				time.Sleep(50 * time.Millisecond)
			}
		} else {
			break
		}
	}

	// Start the container
	logrus.Debugln("Starting container ", c.ID)
	err = hcsshim.StartComputeSystem(c.ID)
	if err != nil {
		logrus.Errorf("Failed to start compute system: %s", err)
		return execdriver.ExitStatus{ExitCode: -1}, err
	}
	defer func() {
		// Stop the container
		if forceKill {
			logrus.Debugf("Forcibly terminating container %s", c.ID)
			if errno, err := hcsshim.TerminateComputeSystem(c.ID, hcsshim.TimeoutInfinite, "exec-run-defer"); err != nil {
				logrus.Warnf("Ignoring error from TerminateComputeSystem 0x%X %s", errno, err)
			}
		} else {
			logrus.Debugf("Shutting down container %s", c.ID)
			if errno, err := hcsshim.ShutdownComputeSystem(c.ID, hcsshim.TimeoutInfinite, "exec-run-defer"); err != nil {
				if errno != hcsshim.Win32SystemShutdownIsInProgress &&
					errno != hcsshim.Win32SpecifiedPathInvalid &&
					errno != hcsshim.Win32SystemCannotFindThePathSpecified {
					logrus.Warnf("Ignoring error from ShutdownComputeSystem 0x%X %s", errno, err)
				}
			}
		}
	}()

	createProcessParms := hcsshim.CreateProcessParams{
		EmulateConsole:   c.ProcessConfig.Tty,
		WorkingDirectory: c.WorkingDir,
		ConsoleSize:      c.ProcessConfig.ConsoleSize,
	}

	// Configure the environment for the process
	createProcessParms.Environment = setupEnvironmentVariables(c.ProcessConfig.Env)

	createProcessParms.CommandLine, err = createCommandLine(&c.ProcessConfig, c.ArgsEscaped)

	if err != nil {
		return execdriver.ExitStatus{ExitCode: -1}, err
	}

	// Start the command running in the container.
	pid, stdin, stdout, stderr, _, err := hcsshim.CreateProcessInComputeSystem(c.ID, pipes.Stdin != nil, true, !c.ProcessConfig.Tty, createProcessParms)
	if err != nil {
		logrus.Errorf("CreateProcessInComputeSystem() failed %s", err)
		return execdriver.ExitStatus{ExitCode: -1}, err
	}

	// Now that the process has been launched, begin copying data to and from
	// the named pipes for the std handles.
	setupPipes(stdin, stdout, stderr, pipes)

	//Save the PID as we'll need this in Kill()
	logrus.Debugf("PID %d", pid)
	c.ContainerPid = int(pid)

	if c.ProcessConfig.Tty {
		term = NewTtyConsole(c.ID, pid)
	} else {
		term = NewStdConsole()
	}
	c.ProcessConfig.Terminal = term

	// Maintain our list of active containers. We'll need this later for exec
	// and other commands.
	d.Lock()
	d.activeContainers[c.ID] = &activeContainer{
		command: c,
	}
	d.Unlock()

	if hooks.Start != nil {
		// A closed channel for OOM is returned here as it will be
		// non-blocking and return the correct result when read.
		chOOM := make(chan struct{})
		close(chOOM)
		hooks.Start(&c.ProcessConfig, int(pid), chOOM)
	}

	var (
		exitCode int32
		errno    uint32
	)
	exitCode, errno, err = hcsshim.WaitForProcessInComputeSystem(c.ID, pid, hcsshim.TimeoutInfinite)
	if err != nil {
		if errno != hcsshim.Win32PipeHasBeenEnded {
			logrus.Warnf("WaitForProcessInComputeSystem failed (container may have been killed): %s", err)
		}
		// Do NOT return err here as the container would have
		// started, otherwise docker will deadlock. It's perfectly legitimate
		// for WaitForProcessInComputeSystem to fail in situations such
		// as the container being killed on another thread.
		return execdriver.ExitStatus{ExitCode: hcsshim.WaitErrExecFailed}, nil
	}

	logrus.Debugf("Exiting Run() exitCode %d id=%s", exitCode, c.ID)
	return execdriver.ExitStatus{ExitCode: int(exitCode)}, nil
}
Example #4
0
// Run implements the exec driver Driver interface
func (d *Driver) Run(c *execdriver.Command, pipes *execdriver.Pipes, hooks execdriver.Hooks) (execdriver.ExitStatus, error) {

	var (
		term execdriver.Terminal
		err  error
	)

	// Make sure the client isn't asking for options which aren't supported
	err = checkSupportedOptions(c)
	if err != nil {
		return execdriver.ExitStatus{ExitCode: -1}, err
	}

	cu := &containerInit{
		SystemType:              "Container",
		Name:                    c.ID,
		Owner:                   defaultOwner,
		IsDummy:                 dummyMode,
		VolumePath:              c.Rootfs,
		IgnoreFlushesDuringBoot: c.FirstStart,
		LayerFolderPath:         c.LayerFolder,
		ProcessorWeight:         c.Resources.CPUShares,
		HostName:                c.Hostname,
	}

	for i := 0; i < len(c.LayerPaths); i++ {
		_, filename := filepath.Split(c.LayerPaths[i])
		g, err := hcsshim.NameToGuid(filename)
		if err != nil {
			return execdriver.ExitStatus{ExitCode: -1}, err
		}
		cu.Layers = append(cu.Layers, layer{
			ID:   g.ToString(),
			Path: c.LayerPaths[i],
		})
	}

	// TODO Windows. At some point, when there is CLI on docker run to
	// enable the IP Address of the container to be passed into docker run,
	// the IP Address needs to be wired through to HCS in the JSON. It
	// would be present in c.Network.Interface.IPAddress. See matching
	// TODO in daemon\container_windows.go, function populateCommand.

	if c.Network.Interface != nil {

		var pbs []portBinding

		// Enumerate through the port bindings specified by the user and convert
		// them into the internal structure matching the JSON blob that can be
		// understood by the HCS.
		for i, v := range c.Network.Interface.PortBindings {
			proto := strings.ToUpper(i.Proto())
			if proto != "TCP" && proto != "UDP" {
				return execdriver.ExitStatus{ExitCode: -1}, fmt.Errorf("invalid protocol %s", i.Proto())
			}

			if len(v) > 1 {
				return execdriver.ExitStatus{ExitCode: -1}, fmt.Errorf("Windows does not support more than one host port in NAT settings")
			}

			for _, v2 := range v {
				var (
					iPort, ePort int
					err          error
				)
				if len(v2.HostIP) != 0 {
					return execdriver.ExitStatus{ExitCode: -1}, fmt.Errorf("Windows does not support host IP addresses in NAT settings")
				}
				if ePort, err = strconv.Atoi(v2.HostPort); err != nil {
					return execdriver.ExitStatus{ExitCode: -1}, fmt.Errorf("invalid container port %s: %s", v2.HostPort, err)
				}
				if iPort, err = strconv.Atoi(i.Port()); err != nil {
					return execdriver.ExitStatus{ExitCode: -1}, fmt.Errorf("invalid internal port %s: %s", i.Port(), err)
				}
				if iPort < 0 || iPort > 65535 || ePort < 0 || ePort > 65535 {
					return execdriver.ExitStatus{ExitCode: -1}, fmt.Errorf("specified NAT port is not in allowed range")
				}
				pbs = append(pbs,
					portBinding{ExternalPort: ePort,
						InternalPort: iPort,
						Protocol:     proto})
			}
		}

		// TODO Windows: TP3 workaround. Allow the user to override the name of
		// the Container NAT device through an environment variable. This will
		// ultimately be a global daemon parameter on Windows, similar to -b
		// for the name of the virtual switch (aka bridge).
		cn := os.Getenv("DOCKER_CONTAINER_NAT")
		if len(cn) == 0 {
			cn = defaultContainerNAT
		}

		dev := device{
			DeviceType: "Network",
			Connection: &networkConnection{
				NetworkName: c.Network.Interface.Bridge,
				// TODO Windows: Fixme, next line. Needs HCS fix.
				EnableNat: false,
				Nat: natSettings{
					Name:         cn,
					PortBindings: pbs,
				},
			},
		}

		if c.Network.Interface.MacAddress != "" {
			windowsStyleMAC := strings.Replace(
				c.Network.Interface.MacAddress, ":", "-", -1)
			dev.Settings = networkSettings{
				MacAddress: windowsStyleMAC,
			}
		}
		cu.Devices = append(cu.Devices, dev)
	} else {
		logrus.Debugln("No network interface")
	}

	configurationb, err := json.Marshal(cu)
	if err != nil {
		return execdriver.ExitStatus{ExitCode: -1}, err
	}

	configuration := string(configurationb)

	err = hcsshim.CreateComputeSystem(c.ID, configuration)
	if err != nil {
		logrus.Debugln("Failed to create temporary container ", err)
		return execdriver.ExitStatus{ExitCode: -1}, err
	}

	// Start the container
	logrus.Debugln("Starting container ", c.ID)
	err = hcsshim.StartComputeSystem(c.ID)
	if err != nil {
		logrus.Errorf("Failed to start compute system: %s", err)
		return execdriver.ExitStatus{ExitCode: -1}, err
	}
	defer func() {
		// Stop the container
		if forceKill {
			logrus.Debugf("Forcibly terminating container %s", c.ID)
			if errno, err := hcsshim.TerminateComputeSystem(c.ID, hcsshim.TimeoutInfinite, "exec-run-defer"); err != nil {
				logrus.Warnf("Ignoring error from TerminateComputeSystem 0x%X %s", errno, err)
			}
		} else {
			logrus.Debugf("Shutting down container %s", c.ID)
			if errno, err := hcsshim.ShutdownComputeSystem(c.ID, hcsshim.TimeoutInfinite, "exec-run-defer"); err != nil {
				if errno != hcsshim.Win32SystemShutdownIsInProgress &&
					errno != hcsshim.Win32SpecifiedPathInvalid &&
					errno != hcsshim.Win32SystemCannotFindThePathSpecified {
					logrus.Warnf("Ignoring error from ShutdownComputeSystem 0x%X %s", errno, err)
				}
			}
		}
	}()

	createProcessParms := hcsshim.CreateProcessParams{
		EmulateConsole:   c.ProcessConfig.Tty,
		WorkingDirectory: c.WorkingDir,
		ConsoleSize:      c.ProcessConfig.ConsoleSize,
	}

	// Configure the environment for the process
	createProcessParms.Environment = setupEnvironmentVariables(c.ProcessConfig.Env)

	// This should get caught earlier, but just in case - validate that we
	// have something to run
	if c.ProcessConfig.Entrypoint == "" {
		err = errors.New("No entrypoint specified")
		logrus.Error(err)
		return execdriver.ExitStatus{ExitCode: -1}, err
	}

	// Build the command line of the process
	createProcessParms.CommandLine = c.ProcessConfig.Entrypoint
	for _, arg := range c.ProcessConfig.Arguments {
		logrus.Debugln("appending ", arg)
		createProcessParms.CommandLine += " " + syscall.EscapeArg(arg)
	}
	logrus.Debugf("CommandLine: %s", createProcessParms.CommandLine)

	// Start the command running in the container.
	pid, stdin, stdout, stderr, err := hcsshim.CreateProcessInComputeSystem(c.ID, pipes.Stdin != nil, true, !c.ProcessConfig.Tty, createProcessParms)
	if err != nil {
		logrus.Errorf("CreateProcessInComputeSystem() failed %s", err)
		return execdriver.ExitStatus{ExitCode: -1}, err
	}

	// Now that the process has been launched, begin copying data to and from
	// the named pipes for the std handles.
	setupPipes(stdin, stdout, stderr, pipes)

	//Save the PID as we'll need this in Kill()
	logrus.Debugf("PID %d", pid)
	c.ContainerPid = int(pid)

	if c.ProcessConfig.Tty {
		term = NewTtyConsole(c.ID, pid)
	} else {
		term = NewStdConsole()
	}
	c.ProcessConfig.Terminal = term

	// Maintain our list of active containers. We'll need this later for exec
	// and other commands.
	d.Lock()
	d.activeContainers[c.ID] = &activeContainer{
		command: c,
	}
	d.Unlock()

	if hooks.Start != nil {
		// A closed channel for OOM is returned here as it will be
		// non-blocking and return the correct result when read.
		chOOM := make(chan struct{})
		close(chOOM)
		hooks.Start(&c.ProcessConfig, int(pid), chOOM)
	}

	var (
		exitCode int32
		errno    uint32
	)
	exitCode, errno, err = hcsshim.WaitForProcessInComputeSystem(c.ID, pid, hcsshim.TimeoutInfinite)
	if err != nil {
		if errno != hcsshim.Win32PipeHasBeenEnded {
			logrus.Warnf("WaitForProcessInComputeSystem failed (container may have been killed): %s", err)
		}
		// Do NOT return err here as the container would have
		// started, otherwise docker will deadlock. It's perfectly legitimate
		// for WaitForProcessInComputeSystem to fail in situations such
		// as the container being killed on another thread.
		return execdriver.ExitStatus{ExitCode: hcsshim.WaitErrExecFailed}, nil
	}

	logrus.Debugf("Exiting Run() exitCode %d id=%s", exitCode, c.ID)
	return execdriver.ExitStatus{ExitCode: int(exitCode)}, nil
}
Example #5
0
func (d *driver) Run(c *execdriver.Command, pipes *execdriver.Pipes, startCallback execdriver.StartCallback) (execdriver.ExitStatus, error) {

	var (
		term                           execdriver.Terminal
		err                            error
		inListen, outListen, errListen *npipe.PipeListener
	)

	// Make sure the client isn't asking for options which aren't supported
	err = checkSupportedOptions(c)
	if err != nil {
		return execdriver.ExitStatus{ExitCode: -1}, err
	}

	cu := &containerInit{
		SystemType:              "Container",
		Name:                    c.ID,
		IsDummy:                 dummyMode,
		VolumePath:              c.Rootfs,
		IgnoreFlushesDuringBoot: c.FirstStart,
		LayerFolderPath:         c.LayerFolder,
	}

	for i := 0; i < len(c.LayerPaths); i++ {
		cu.Layers = append(cu.Layers, layer{
			Id:   hcsshim.NewGUID(c.LayerPaths[i]).ToString(),
			Path: c.LayerPaths[i],
		})
	}

	if c.Network.Interface != nil {
		dev := device{
			DeviceType: "Network",
			Connection: &networkConnection{
				NetworkName: c.Network.Interface.Bridge,
				EnableNat:   false,
			},
		}

		if c.Network.Interface.MacAddress != "" {
			windowsStyleMAC := strings.Replace(
				c.Network.Interface.MacAddress, ":", "-", -1)
			dev.Settings = networkSettings{
				MacAddress: windowsStyleMAC,
			}
		}

		logrus.Debugf("Virtual switch '%s', mac='%s'", c.Network.Interface.Bridge, c.Network.Interface.MacAddress)

		cu.Devices = append(cu.Devices, dev)
	} else {
		logrus.Debugln("No network interface")
	}

	configurationb, err := json.Marshal(cu)
	if err != nil {
		return execdriver.ExitStatus{ExitCode: -1}, err
	}

	configuration := string(configurationb)

	err = hcsshim.CreateComputeSystem(c.ID, configuration)
	if err != nil {
		logrus.Debugln("Failed to create temporary container ", err)
		return execdriver.ExitStatus{ExitCode: -1}, err
	}

	// Start the container
	logrus.Debugln("Starting container ", c.ID)
	err = hcsshim.StartComputeSystem(c.ID)
	if err != nil {
		logrus.Errorf("Failed to start compute system: %s", err)
		return execdriver.ExitStatus{ExitCode: -1}, err
	}
	defer func() {
		// Stop the container

		if terminateMode {
			logrus.Debugf("Terminating container %s", c.ID)
			if err := hcsshim.TerminateComputeSystem(c.ID); err != nil {
				// IMPORTANT: Don't fail if fails to change state. It could already
				// have been stopped through kill().
				// Otherwise, the docker daemon will hang in job wait()
				logrus.Warnf("Ignoring error from TerminateComputeSystem %s", err)
			}
		} else {
			logrus.Debugf("Shutting down container %s", c.ID)
			if err := hcsshim.ShutdownComputeSystem(c.ID); err != nil {
				// IMPORTANT: Don't fail if fails to change state. It could already
				// have been stopped through kill().
				// Otherwise, the docker daemon will hang in job wait()
				logrus.Warnf("Ignoring error from ShutdownComputeSystem %s", err)
			}
		}
	}()

	// We use a different pipe name between real and dummy mode in the HCS
	var serverPipeFormat, clientPipeFormat string
	if dummyMode {
		clientPipeFormat = `\\.\pipe\docker-run-%[1]s-%[2]s`
		serverPipeFormat = clientPipeFormat
	} else {
		clientPipeFormat = `\\.\pipe\docker-run-%[2]s`
		serverPipeFormat = `\\.\Containers\%[1]s\Device\NamedPipe\docker-run-%[2]s`
	}

	createProcessParms := hcsshim.CreateProcessParams{
		EmulateConsole:   c.ProcessConfig.Tty,
		WorkingDirectory: c.WorkingDir,
		ConsoleSize:      c.ProcessConfig.ConsoleSize,
	}

	// Configure the environment for the process
	createProcessParms.Environment = setupEnvironmentVariables(c.ProcessConfig.Env)

	// Connect stdin
	if pipes.Stdin != nil {
		stdInPipe := fmt.Sprintf(serverPipeFormat, c.ID, "stdin")
		createProcessParms.StdInPipe = fmt.Sprintf(clientPipeFormat, c.ID, "stdin")

		// Listen on the named pipe
		inListen, err = npipe.Listen(stdInPipe)
		if err != nil {
			logrus.Errorf("stdin failed to listen on %s err=%s", stdInPipe, err)
			return execdriver.ExitStatus{ExitCode: -1}, err
		}
		defer inListen.Close()

		// Launch a goroutine to do the accept. We do this so that we can
		// cause an otherwise blocking goroutine to gracefully close when
		// the caller (us) closes the listener
		go stdinAccept(inListen, stdInPipe, pipes.Stdin)
	}

	// Connect stdout
	stdOutPipe := fmt.Sprintf(serverPipeFormat, c.ID, "stdout")
	createProcessParms.StdOutPipe = fmt.Sprintf(clientPipeFormat, c.ID, "stdout")

	outListen, err = npipe.Listen(stdOutPipe)
	if err != nil {
		logrus.Errorf("stdout failed to listen on %s err=%s", stdOutPipe, err)
		return execdriver.ExitStatus{ExitCode: -1}, err
	}
	defer outListen.Close()
	go stdouterrAccept(outListen, stdOutPipe, pipes.Stdout)

	// No stderr on TTY.
	if !c.ProcessConfig.Tty {
		// Connect stderr
		stdErrPipe := fmt.Sprintf(serverPipeFormat, c.ID, "stderr")
		createProcessParms.StdErrPipe = fmt.Sprintf(clientPipeFormat, c.ID, "stderr")
		errListen, err = npipe.Listen(stdErrPipe)
		if err != nil {
			logrus.Errorf("stderr failed to listen on %s err=%s", stdErrPipe, err)
			return execdriver.ExitStatus{ExitCode: -1}, err
		}
		defer errListen.Close()
		go stdouterrAccept(errListen, stdErrPipe, pipes.Stderr)
	}

	// This should get caught earlier, but just in case - validate that we
	// have something to run
	if c.ProcessConfig.Entrypoint == "" {
		err = errors.New("No entrypoint specified")
		logrus.Error(err)
		return execdriver.ExitStatus{ExitCode: -1}, err
	}

	// Build the command line of the process
	createProcessParms.CommandLine = c.ProcessConfig.Entrypoint
	for _, arg := range c.ProcessConfig.Arguments {
		logrus.Debugln("appending ", arg)
		createProcessParms.CommandLine += " " + arg
	}
	logrus.Debugf("CommandLine: %s", createProcessParms.CommandLine)

	// Start the command running in the container.
	var pid uint32
	pid, err = hcsshim.CreateProcessInComputeSystem(c.ID, createProcessParms)

	if err != nil {
		logrus.Errorf("CreateProcessInComputeSystem() failed %s", err)
		return execdriver.ExitStatus{ExitCode: -1}, err
	}

	//Save the PID as we'll need this in Kill()
	logrus.Debugf("PID %d", pid)
	c.ContainerPid = int(pid)

	if c.ProcessConfig.Tty {
		term = NewTtyConsole(c.ID, pid)
	} else {
		term = NewStdConsole()
	}
	c.ProcessConfig.Terminal = term

	// Maintain our list of active containers. We'll need this later for exec
	// and other commands.
	d.Lock()
	d.activeContainers[c.ID] = &activeContainer{
		command: c,
	}
	d.Unlock()

	// Invoke the start callback
	if startCallback != nil {
		startCallback(&c.ProcessConfig, int(pid))
	}

	var exitCode int32
	exitCode, err = hcsshim.WaitForProcessInComputeSystem(c.ID, pid)
	if err != nil {
		logrus.Errorf("Failed to WaitForProcessInComputeSystem %s", err)
		return execdriver.ExitStatus{ExitCode: -1}, err
	}

	logrus.Debugf("Exiting Run() exitCode %d id=%s", exitCode, c.ID)
	return execdriver.ExitStatus{ExitCode: int(exitCode)}, nil
}
Example #6
0
// Create is the entrypoint to create a container from a spec, and if successfully
// created, start it too.
func (clnt *client) Create(containerID string, spec Spec, options ...CreateOption) error {
	logrus.Debugln("LCD client.Create() with spec", spec)

	cu := &containerInit{
		SystemType: "Container",
		Name:       containerID,
		Owner:      defaultOwner,

		VolumePath:              spec.Root.Path,
		IgnoreFlushesDuringBoot: spec.Windows.FirstStart,
		LayerFolderPath:         spec.Windows.LayerFolder,
		HostName:                spec.Hostname,
	}

	if spec.Windows.Networking != nil {
		cu.EndpointList = spec.Windows.Networking.EndpointList
	}

	if spec.Windows.Resources != nil {
		if spec.Windows.Resources.CPU != nil {
			if spec.Windows.Resources.CPU.Shares != nil {
				cu.ProcessorWeight = *spec.Windows.Resources.CPU.Shares
			}
			if spec.Windows.Resources.CPU.Percent != nil {
				cu.ProcessorMaximum = *spec.Windows.Resources.CPU.Percent * 100 // ProcessorMaximum is a value between 1 and 10000
			}
		}
		if spec.Windows.Resources.Memory != nil {
			if spec.Windows.Resources.Memory.Limit != nil {
				cu.MemoryMaximumInMB = *spec.Windows.Resources.Memory.Limit / 1024 / 1024
			}
		}
		if spec.Windows.Resources.Storage != nil {
			if spec.Windows.Resources.Storage.Bps != nil {
				cu.StorageBandwidthMaximum = *spec.Windows.Resources.Storage.Bps
			}
			if spec.Windows.Resources.Storage.Iops != nil {
				cu.StorageIOPSMaximum = *spec.Windows.Resources.Storage.Iops
			}
			if spec.Windows.Resources.Storage.SandboxSize != nil {
				cu.StorageSandboxSize = *spec.Windows.Resources.Storage.SandboxSize
			}
		}
	}

	cu.HvPartition = (spec.Windows.HvRuntime != nil)

	// TODO Windows @jhowardmsft. FIXME post TP5.
	//	if spec.Windows.HvRuntime != nil {
	//		if spec.WIndows.HVRuntime.ImagePath != "" {
	//			cu.TBD = spec.Windows.HvRuntime.ImagePath
	//		}
	//	}

	if cu.HvPartition {
		cu.SandboxPath = filepath.Dir(spec.Windows.LayerFolder)
	} else {
		cu.VolumePath = spec.Root.Path
		cu.LayerFolderPath = spec.Windows.LayerFolder
	}

	for _, layerPath := range spec.Windows.LayerPaths {
		_, filename := filepath.Split(layerPath)
		g, err := hcsshim.NameToGuid(filename)
		if err != nil {
			return err
		}
		cu.Layers = append(cu.Layers, layer{
			ID:   g.ToString(),
			Path: layerPath,
		})
	}

	// Add the mounts (volumes, bind mounts etc) to the structure
	mds := make([]mappedDir, len(spec.Mounts))
	for i, mount := range spec.Mounts {
		mds[i] = mappedDir{
			HostPath:      mount.Source,
			ContainerPath: mount.Destination,
			ReadOnly:      mount.Readonly}
	}
	cu.MappedDirectories = mds

	// TODO Windows: vv START OF TP4 BLOCK OF CODE. REMOVE ONCE TP4 IS NO LONGER SUPPORTED
	if hcsshim.IsTP4() &&
		spec.Windows.Networking != nil &&
		spec.Windows.Networking.Bridge != "" {
		// Enumerate through the port bindings specified by the user and convert
		// them into the internal structure matching the JSON blob that can be
		// understood by the HCS.
		var pbs []portBinding
		for i, v := range spec.Windows.Networking.PortBindings {
			proto := strings.ToUpper(i.Proto())
			if proto != "TCP" && proto != "UDP" {
				return fmt.Errorf("invalid protocol %s", i.Proto())
			}

			if len(v) > 1 {
				return fmt.Errorf("Windows does not support more than one host port in NAT settings")
			}

			for _, v2 := range v {
				var (
					iPort, ePort int
					err          error
				)
				if len(v2.HostIP) != 0 {
					return fmt.Errorf("Windows does not support host IP addresses in NAT settings")
				}
				if ePort, err = strconv.Atoi(v2.HostPort); err != nil {
					return fmt.Errorf("invalid container port %s: %s", v2.HostPort, err)
				}
				if iPort, err = strconv.Atoi(i.Port()); err != nil {
					return fmt.Errorf("invalid internal port %s: %s", i.Port(), err)
				}
				if iPort < 0 || iPort > 65535 || ePort < 0 || ePort > 65535 {
					return fmt.Errorf("specified NAT port is not in allowed range")
				}
				pbs = append(pbs,
					portBinding{ExternalPort: ePort,
						InternalPort: iPort,
						Protocol:     proto})
			}
		}

		dev := device{
			DeviceType: "Network",
			Connection: &networkConnection{
				NetworkName: spec.Windows.Networking.Bridge,
				Nat: natSettings{
					Name:         defaultContainerNAT,
					PortBindings: pbs,
				},
			},
		}

		if spec.Windows.Networking.MacAddress != "" {
			windowsStyleMAC := strings.Replace(
				spec.Windows.Networking.MacAddress, ":", "-", -1)
			dev.Settings = networkSettings{
				MacAddress: windowsStyleMAC,
			}
		}
		cu.Devices = append(cu.Devices, dev)
	} else {
		logrus.Debugln("No network interface")
	}
	// TODO Windows: ^^ END OF TP4 BLOCK OF CODE. REMOVE ONCE TP4 IS NO LONGER SUPPORTED

	configurationb, err := json.Marshal(cu)
	if err != nil {
		return err
	}

	configuration := string(configurationb)

	// TODO Windows TP5 timeframe. Remove when TP4 is no longer supported.
	// The following a workaround for Windows TP4 which has a networking
	// bug which fairly frequently returns an error. Back off and retry.
	if !hcsshim.IsTP4() {
		if err := hcsshim.CreateComputeSystem(containerID, configuration); err != nil {
			return err
		}
	} else {
		maxAttempts := 5
		for i := 1; i <= maxAttempts; i++ {
			err = hcsshim.CreateComputeSystem(containerID, configuration)
			if err == nil {
				break
			}

			if herr, ok := err.(*hcsshim.HcsError); ok {
				if herr.Err != syscall.ERROR_NOT_FOUND && // Element not found
					herr.Err != syscall.ERROR_FILE_NOT_FOUND && // The system cannot find the file specified
					herr.Err != ErrorNoNetwork && // The network is not present or not started
					herr.Err != ErrorBadPathname && // The specified path is invalid
					herr.Err != CoEClassstring && // Invalid class string
					herr.Err != ErrorInvalidObject { // The object identifier does not represent a valid object
					logrus.Debugln("Failed to create temporary container ", err)
					return err
				}
				logrus.Warnf("Invoking Windows TP4 retry hack (%d of %d)", i, maxAttempts-1)
				time.Sleep(50 * time.Millisecond)
			}
		}
	}

	// Construct a container object for calling start on it.
	container := &container{
		containerCommon: containerCommon{
			process: process{
				processCommon: processCommon{
					containerID:  containerID,
					client:       clnt,
					friendlyName: InitFriendlyName,
				},
			},
			processes: make(map[string]*process),
		},
		ociSpec: spec,
	}

	container.options = options
	for _, option := range options {
		if err := option.Apply(container); err != nil {
			logrus.Error(err)
		}
	}

	// Call start, and if it fails, delete the container from our
	// internal structure, and also keep HCS in sync by deleting the
	// container there.
	logrus.Debugf("Create() id=%s, Calling start()", containerID)
	if err := container.start(); err != nil {
		clnt.deleteContainer(containerID)
		return err
	}

	logrus.Debugf("Create() id=%s completed successfully", containerID)
	return nil

}