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