Golang opts.ParseRestartPolicy函数代码示例

func convertRestartPolicy(restart string, source *composetypes.RestartPolicy) (*swarm.RestartPolicy, error) {
	// TODO: log if restart is being ignored
	if source == nil {
		policy, err := runconfigopts.ParseRestartPolicy(restart)
		if err != nil {
			return nil, err
		}
		switch {
		case policy.IsNone():
			return nil, nil
		case policy.IsAlways(), policy.IsUnlessStopped():
			return &swarm.RestartPolicy{
				Condition: swarm.RestartPolicyConditionAny,
			}, nil
		case policy.IsOnFailure():
			attempts := uint64(policy.MaximumRetryCount)
			return &swarm.RestartPolicy{
				Condition:   swarm.RestartPolicyConditionOnFailure,
				MaxAttempts: &attempts,
			}, nil
		default:
			return nil, fmt.Errorf("unknown restart policy: %s", restart)
		}
	}
	return &swarm.RestartPolicy{
		Condition:   swarm.RestartPolicyCondition(source.Condition),
		Delay:       source.Delay,
		MaxAttempts: source.MaxAttempts,
		Window:      source.Window,
	}, nil
}

func restartPolicy(c *config.ServiceConfig) (*container.RestartPolicy, error) {
	restart, err := opts.ParseRestartPolicy(c.Restart)
	if err != nil {
		return nil, err
	}
	return &container.RestartPolicy{Name: restart.Name, MaximumRetryCount: restart.MaximumRetryCount}, nil
}

func runUpdate(dockerCli *command.DockerCli, opts *updateOptions) error {
	var err error

	if opts.nFlag == 0 {
		return fmt.Errorf("You must provide one or more flags when using this command.")
	}

	var memory int64
	if opts.memoryString != "" {
		memory, err = units.RAMInBytes(opts.memoryString)
		if err != nil {
			return err
		}
	}

	var memoryReservation int64
	if opts.memoryReservation != "" {
		memoryReservation, err = units.RAMInBytes(opts.memoryReservation)
		if err != nil {
			return err
		}
	}

	var memorySwap int64
	if opts.memorySwap != "" {
		if opts.memorySwap == "-1" {
			memorySwap = -1
		} else {
			memorySwap, err = units.RAMInBytes(opts.memorySwap)
			if err != nil {
				return err
			}
		}
	}

	var kernelMemory int64
	if opts.kernelMemory != "" {
		kernelMemory, err = units.RAMInBytes(opts.kernelMemory)
		if err != nil {
			return err
		}
	}

	var restartPolicy containertypes.RestartPolicy
	if opts.restartPolicy != "" {
		restartPolicy, err = runconfigopts.ParseRestartPolicy(opts.restartPolicy)
		if err != nil {
			return err
		}
	}

	resources := containertypes.Resources{
		BlkioWeight:       opts.blkioWeight,
		CpusetCpus:        opts.cpusetCpus,
		CpusetMems:        opts.cpusetMems,
		CPUShares:         opts.cpuShares,
		Memory:            memory,
		MemoryReservation: memoryReservation,
		MemorySwap:        memorySwap,
		KernelMemory:      kernelMemory,
		CPUPeriod:         opts.cpuPeriod,
		CPUQuota:          opts.cpuQuota,
	}

	updateConfig := containertypes.UpdateConfig{
		Resources:     resources,
		RestartPolicy: restartPolicy,
	}

	ctx := context.Background()

	var (
		warns []string
		errs  []string
	)
	for _, container := range opts.containers {
		r, err := dockerCli.Client().ContainerUpdate(ctx, container, updateConfig)
		if err != nil {
			errs = append(errs, err.Error())
		} else {
			fmt.Fprintf(dockerCli.Out(), "%s\n", container)
		}
		warns = append(warns, r.Warnings...)
	}
	if len(warns) > 0 {
		fmt.Fprintf(dockerCli.Out(), "%s", strings.Join(warns, "\n"))
	}
	if len(errs) > 0 {
		return fmt.Errorf("%s", strings.Join(errs, "\n"))
	}
	return nil
}

// CmdUpdate updates resources of one or more containers.
//
// Usage: docker update [OPTIONS] CONTAINER [CONTAINER...]
func (cli *DockerCli) CmdUpdate(args ...string) error {
	cmd := Cli.Subcmd("update", []string{"CONTAINER [CONTAINER...]"}, Cli.DockerCommands["update"].Description, true)
	flBlkioWeight := cmd.Uint16([]string{"-blkio-weight"}, 0, "Block IO (relative weight), between 10 and 1000")
	flCPUPeriod := cmd.Int64([]string{"-cpu-period"}, 0, "Limit CPU CFS (Completely Fair Scheduler) period")
	flCPUQuota := cmd.Int64([]string{"-cpu-quota"}, 0, "Limit CPU CFS (Completely Fair Scheduler) quota")
	flCpusetCpus := cmd.String([]string{"-cpuset-cpus"}, "", "CPUs in which to allow execution (0-3, 0,1)")
	flCpusetMems := cmd.String([]string{"-cpuset-mems"}, "", "MEMs in which to allow execution (0-3, 0,1)")
	flCPUShares := cmd.Int64([]string{"#c", "-cpu-shares"}, 0, "CPU shares (relative weight)")
	flMemoryString := cmd.String([]string{"m", "-memory"}, "", "Memory limit")
	flMemoryReservation := cmd.String([]string{"-memory-reservation"}, "", "Memory soft limit")
	flMemorySwap := cmd.String([]string{"-memory-swap"}, "", "Swap limit equal to memory plus swap: '-1' to enable unlimited swap")
	flKernelMemory := cmd.String([]string{"-kernel-memory"}, "", "Kernel memory limit")
	flRestartPolicy := cmd.String([]string{"-restart"}, "", "Restart policy to apply when a container exits")

	cmd.Require(flag.Min, 1)
	cmd.ParseFlags(args, true)
	if cmd.NFlag() == 0 {
		return fmt.Errorf("You must provide one or more flags when using this command.")
	}

	var err error
	var flMemory int64
	if *flMemoryString != "" {
		flMemory, err = units.RAMInBytes(*flMemoryString)
		if err != nil {
			return err
		}
	}

	var memoryReservation int64
	if *flMemoryReservation != "" {
		memoryReservation, err = units.RAMInBytes(*flMemoryReservation)
		if err != nil {
			return err
		}
	}

	var memorySwap int64
	if *flMemorySwap != "" {
		if *flMemorySwap == "-1" {
			memorySwap = -1
		} else {
			memorySwap, err = units.RAMInBytes(*flMemorySwap)
			if err != nil {
				return err
			}
		}
	}

	var kernelMemory int64
	if *flKernelMemory != "" {
		kernelMemory, err = units.RAMInBytes(*flKernelMemory)
		if err != nil {
			return err
		}
	}

	var restartPolicy container.RestartPolicy
	if *flRestartPolicy != "" {
		restartPolicy, err = opts.ParseRestartPolicy(*flRestartPolicy)
		if err != nil {
			return err
		}
	}

	resources := container.Resources{
		BlkioWeight:       *flBlkioWeight,
		CpusetCpus:        *flCpusetCpus,
		CpusetMems:        *flCpusetMems,
		CPUShares:         *flCPUShares,
		Memory:            flMemory,
		MemoryReservation: memoryReservation,
		MemorySwap:        memorySwap,
		KernelMemory:      kernelMemory,
		CPUPeriod:         *flCPUPeriod,
		CPUQuota:          *flCPUQuota,
	}

	updateConfig := container.UpdateConfig{
		Resources:     resources,
		RestartPolicy: restartPolicy,
	}

	names := cmd.Args()
	var errs []string
	for _, name := range names {
		if err := cli.client.ContainerUpdate(context.Background(), name, updateConfig); err != nil {
			errs = append(errs, err.Error())
		} else {
			fmt.Fprintf(cli.out, "%s\n", name)
		}
	}

	if len(errs) > 0 {
		return fmt.Errorf("%s", strings.Join(errs, "\n"))
	}

//.........这里部分代码省略.........

//.........这里部分代码省略.........

	// collect all the environment variables for the container
	envVariables, err := runconfigopts.ReadKVStrings(copts.envFile.GetAll(), copts.env.GetAll())
	if err != nil {
		return nil, nil, nil, err
	}

	// collect all the labels for the container
	labels, err := runconfigopts.ReadKVStrings(copts.labelsFile.GetAll(), copts.labels.GetAll())
	if err != nil {
		return nil, nil, nil, err
	}

	ipcMode := container.IpcMode(copts.ipcMode)
	if !ipcMode.Valid() {
		return nil, nil, nil, fmt.Errorf("--ipc: invalid IPC mode")
	}

	pidMode := container.PidMode(copts.pidMode)
	if !pidMode.Valid() {
		return nil, nil, nil, fmt.Errorf("--pid: invalid PID mode")
	}

	utsMode := container.UTSMode(copts.utsMode)
	if !utsMode.Valid() {
		return nil, nil, nil, fmt.Errorf("--uts: invalid UTS mode")
	}

	usernsMode := container.UsernsMode(copts.usernsMode)
	if !usernsMode.Valid() {
		return nil, nil, nil, fmt.Errorf("--userns: invalid USER mode")
	}

	restartPolicy, err := runconfigopts.ParseRestartPolicy(copts.restartPolicy)
	if err != nil {
		return nil, nil, nil, err
	}

	loggingOpts, err := parseLoggingOpts(copts.loggingDriver, copts.loggingOpts.GetAll())
	if err != nil {
		return nil, nil, nil, err
	}

	securityOpts, err := parseSecurityOpts(copts.securityOpt.GetAll())
	if err != nil {
		return nil, nil, nil, err
	}

	storageOpts, err := parseStorageOpts(copts.storageOpt.GetAll())
	if err != nil {
		return nil, nil, nil, err
	}

	// Healthcheck
	var healthConfig *container.HealthConfig
	haveHealthSettings := copts.healthCmd != "" ||
		copts.healthInterval != 0 ||
		copts.healthTimeout != 0 ||
		copts.healthRetries != 0
	if copts.noHealthcheck {
		if haveHealthSettings {
			return nil, nil, nil, fmt.Errorf("--no-healthcheck conflicts with --health-* options")
		}
		test := strslice.StrSlice{"NONE"}
		healthConfig = &container.HealthConfig{Test: test}
	} else if haveHealthSettings {