package daemon import ( "github.com/docker/docker/container" derr "github.com/docker/docker/errors" ) // ContainerPause pauses a container func (daemon *Daemon) ContainerPause(name string) error { container, err := daemon.GetContainer(name) if err != nil { return err } if err := daemon.containerPause(container); err != nil { return derr.ErrorCodePauseError.WithArgs(name, err) } return nil } // containerPause pauses the container execution without stopping the process. // The execution can be resumed by calling containerUnpause. func (daemon *Daemon) containerPause(container *container.Container) error { container.Lock() defer container.Unlock() // We cannot Pause the container which is not running if !container.Running { return derr.ErrorCodeNotRunning.WithArgs(container.ID) } // We cannot Pause the container which is already paused if container.Paused { return derr.ErrorCodeAlreadyPaused.WithArgs(container.ID) } if err := daemon.execDriver.Pause(container.Command); err != nil { return err } container.Paused = true daemon.LogContainerEvent(container, "pause") return nil }