Golang exec.NewConfig函数代码示例

// ContainerExecCreate sets up an exec in a running container.
func (d *Daemon) ContainerExecCreate(config *runconfig.ExecConfig) (string, error) {
	container, err := d.getActiveContainer(config.Container)
	if err != nil {
		return "", err
	}

	cmd := stringutils.NewStrSlice(config.Cmd...)
	entrypoint, args := d.getEntrypointAndArgs(stringutils.NewStrSlice(), cmd)

	processConfig := &execdriver.ProcessConfig{
		CommonProcessConfig: execdriver.CommonProcessConfig{
			Tty:        config.Tty,
			Entrypoint: entrypoint,
			Arguments:  args,
		},
	}
	setPlatformSpecificExecProcessConfig(config, container, processConfig)

	execConfig := exec.NewConfig()
	execConfig.OpenStdin = config.AttachStdin
	execConfig.OpenStdout = config.AttachStdout
	execConfig.OpenStderr = config.AttachStderr
	execConfig.ProcessConfig = processConfig
	execConfig.ContainerID = container.ID

	d.registerExecCommand(container, execConfig)

	d.LogContainerEvent(container, "exec_create: "+execConfig.ProcessConfig.Entrypoint+" "+strings.Join(execConfig.ProcessConfig.Arguments, " "))

	return execConfig.ID, nil
}

// exec the healthcheck command in the container.
// Returns the exit code and probe output (if any)
func (p *cmdProbe) run(ctx context.Context, d *Daemon, container *container.Container) (*types.HealthcheckResult, error) {

	cmdSlice := strslice.StrSlice(container.Config.Healthcheck.Test)[1:]
	if p.shell {
		if runtime.GOOS != "windows" {
			cmdSlice = append([]string{"/bin/sh", "-c"}, cmdSlice...)
		} else {
			cmdSlice = append([]string{"cmd", "/S", "/C"}, cmdSlice...)
		}
	}
	entrypoint, args := d.getEntrypointAndArgs(strslice.StrSlice{}, cmdSlice)
	execConfig := exec.NewConfig()
	execConfig.OpenStdin = false
	execConfig.OpenStdout = true
	execConfig.OpenStderr = true
	execConfig.ContainerID = container.ID
	execConfig.DetachKeys = []byte{}
	execConfig.Entrypoint = entrypoint
	execConfig.Args = args
	execConfig.Tty = false
	execConfig.Privileged = false
	execConfig.User = container.Config.User

	d.registerExecCommand(container, execConfig)
	d.LogContainerEvent(container, "exec_create: "+execConfig.Entrypoint+" "+strings.Join(execConfig.Args, " "))

	output := &limitedBuffer{}
	err := d.ContainerExecStart(ctx, execConfig.ID, nil, output, output)
	if err != nil {
		return nil, err
	}
	info, err := d.getExecConfig(execConfig.ID)
	if err != nil {
		return nil, err
	}
	if info.ExitCode == nil {
		return nil, fmt.Errorf("Healthcheck for container %s has no exit code!", container.ID)
	}
	// Note: Go's json package will handle invalid UTF-8 for us
	out := output.String()
	return &types.HealthcheckResult{
		End:      time.Now(),
		ExitCode: *info.ExitCode,
		Output:   out,
	}, nil
}

// ContainerExecCreate sets up an exec in a running container.
func (d *Daemon) ContainerExecCreate(name string, config *types.ExecConfig) (string, error) {
	container, err := d.getActiveContainer(name)
	if err != nil {
		return "", err
	}

	cmd := strslice.StrSlice(config.Cmd)
	entrypoint, args := d.getEntrypointAndArgs(strslice.StrSlice{}, cmd)

	keys := []byte{}
	if config.DetachKeys != "" {
		keys, err = term.ToBytes(config.DetachKeys)
		if err != nil {
			err = fmt.Errorf("Invalid escape keys (%s) provided", config.DetachKeys)
			return "", err
		}
	}

	execConfig := exec.NewConfig()
	execConfig.OpenStdin = config.AttachStdin
	execConfig.OpenStdout = config.AttachStdout
	execConfig.OpenStderr = config.AttachStderr
	execConfig.ContainerID = container.ID
	execConfig.DetachKeys = keys
	execConfig.Entrypoint = entrypoint
	execConfig.Args = args
	execConfig.Tty = config.Tty
	execConfig.Privileged = config.Privileged
	execConfig.User = config.User
	execConfig.Env = []string{
		"PATH=" + system.DefaultPathEnv,
	}
	if config.Tty {
		execConfig.Env = append(execConfig.Env, "TERM=xterm")
	}
	execConfig.Env = utils.ReplaceOrAppendEnvValues(execConfig.Env, container.Config.Env)
	if len(execConfig.User) == 0 {
		execConfig.User = container.Config.User
	}

	d.registerExecCommand(container, execConfig)

	d.LogContainerEvent(container, "exec_create: "+execConfig.Entrypoint+" "+strings.Join(execConfig.Args, " "))

	return execConfig.ID, nil
}

// ContainerExecCreate sets up an exec in a running container.
func (d *Daemon) ContainerExecCreate(config *types.ExecConfig) (string, error) {
	container, err := d.getActiveContainer(config.Container)
	if err != nil {
		return "", err
	}

	cmd := strslice.New(config.Cmd...)
	entrypoint, args := d.getEntrypointAndArgs(strslice.New(), cmd)

	keys := []byte{}
	if config.DetachKeys != "" {
		keys, err = term.ToBytes(config.DetachKeys)
		if err != nil {
			logrus.Warnf("Wrong escape keys provided (%s, error: %s) using default : ctrl-p ctrl-q", config.DetachKeys, err.Error())
		}
	}

	processConfig := &execdriver.ProcessConfig{
		CommonProcessConfig: execdriver.CommonProcessConfig{
			Tty:        config.Tty,
			Entrypoint: entrypoint,
			Arguments:  args,
		},
	}
	setPlatformSpecificExecProcessConfig(config, container, processConfig)

	execConfig := exec.NewConfig()
	execConfig.OpenStdin = config.AttachStdin
	execConfig.OpenStdout = config.AttachStdout
	execConfig.OpenStderr = config.AttachStderr
	execConfig.ProcessConfig = processConfig
	execConfig.ContainerID = container.ID
	execConfig.DetachKeys = keys

	d.registerExecCommand(container, execConfig)

	d.LogContainerEvent(container, "exec_create: "+execConfig.ProcessConfig.Entrypoint+" "+strings.Join(execConfig.ProcessConfig.Arguments, " "))

	return execConfig.ID, nil
}

// ContainerExecCreate sets up an exec in a running container.
func (d *Daemon) ContainerExecCreate(config *types.ExecConfig) (string, error) {
	container, err := d.getActiveContainer(config.Container)
	if err != nil {
		return "", err
	}

	cmd := strslice.StrSlice(config.Cmd)
	entrypoint, args := d.getEntrypointAndArgs(strslice.StrSlice{}, cmd)

	keys := []byte{}
	if config.DetachKeys != "" {
		keys, err = term.ToBytes(config.DetachKeys)
		if err != nil {
			logrus.Warnf("Wrong escape keys provided (%s, error: %s) using default : ctrl-p ctrl-q", config.DetachKeys, err.Error())
		}
	}

	execConfig := exec.NewConfig()
	execConfig.OpenStdin = config.AttachStdin
	execConfig.OpenStdout = config.AttachStdout
	execConfig.OpenStderr = config.AttachStderr
	execConfig.ContainerID = container.ID
	execConfig.DetachKeys = keys
	execConfig.Entrypoint = entrypoint
	execConfig.Args = args
	execConfig.Tty = config.Tty
	execConfig.Privileged = config.Privileged
	execConfig.User = config.User
	if len(execConfig.User) == 0 {
		execConfig.User = container.Config.User
	}

	d.registerExecCommand(container, execConfig)

	d.LogContainerEvent(container, "exec_create: "+execConfig.Entrypoint+" "+strings.Join(execConfig.Args, " "))

	return execConfig.ID, nil
}