package daemon import ( "github.com/docker/docker/container" derr "github.com/docker/docker/errors" ) // ContainerRestart stops and starts a container. It attempts to // gracefully stop the container within the given timeout, forcefully // stopping it if the timeout is exceeded. If given a negative // timeout, ContainerRestart will wait forever until a graceful // stop. Returns an error if the container cannot be found, or if // there is an underlying error at any stage of the restart. func (daemon *Daemon) ContainerRestart(name string, seconds int) error { container, err := daemon.Get(name) if err != nil { return err } if err := daemon.containerRestart(container, seconds); err != nil { return derr.ErrorCodeCantRestart.WithArgs(name, err) } return nil } // containerRestart attempts to gracefully stop and then start the // container. When stopping, wait for the given duration in seconds to // gracefully stop, before forcefully terminating the container. If // given a negative duration, wait forever for a graceful stop. func (daemon *Daemon) containerRestart(container *container.Container, seconds int) error { // Avoid unnecessarily unmounting and then directly mounting // the container when the container stops and then starts // again if err := daemon.Mount(container); err == nil { defer daemon.Unmount(container) } if err := daemon.containerStop(container, seconds); err != nil { return err } if err := daemon.containerStart(container); err != nil { return err } daemon.LogContainerEvent(container, "restart") return nil }