// Register makes a container object usable by the daemon as <container.ID>
func (daemon *Daemon) Register(container *container.Container) error {
// Attach to stdout and stderr
if container.Config.OpenStdin {
container.NewInputPipes()
} else {
container.NewNopInputPipe()
}
daemon.containers.Add(container.ID, container)
daemon.idIndex.Add(container.ID)
if container.IsRunning() {
logrus.Debugf("killing old running container %s", container.ID)
// Set exit code to 128 + SIGKILL (9) to properly represent unsuccessful exit
container.SetStoppedLocking(&execdriver.ExitStatus{ExitCode: 137})
// use the current driver and ensure that the container is dead x.x
cmd := &execdriver.Command{
CommonCommand: execdriver.CommonCommand{
ID: container.ID,
},
}
daemon.execDriver.Terminate(cmd)
container.UnmountIpcMounts(mount.Unmount)
daemon.Unmount(container)
if err := container.ToDiskLocking(); err != nil {
logrus.Errorf("Error saving stopped state to disk: %v", err)
}
}
return nil
}
// Cleanup releases any network resources allocated to the container along with any rules
// around how containers are linked together. It also unmounts the container's root filesystem.
func (daemon *Daemon) Cleanup(container *container.Container) {
daemon.releaseNetwork(container)
container.UnmountIpcMounts(detachMounted)
if err := daemon.conditionalUnmountOnCleanup(container); err != nil {
// FIXME: remove once reference counting for graphdrivers has been refactored
// Ensure that all the mounts are gone
if mountid, err := daemon.layerStore.GetMountID(container.ID); err == nil {
daemon.cleanupMountsByID(mountid)
}
}
if err := container.UnmountSecrets(); err != nil {
logrus.Warnf("%s cleanup: failed to unmount secrets: %s", container.ID, err)
}
for _, eConfig := range container.ExecCommands.Commands() {
daemon.unregisterExecCommand(container, eConfig)
}
if container.BaseFS != "" {
if err := container.UnmountVolumes(daemon.LogVolumeEvent); err != nil {
logrus.Warnf("%s cleanup: Failed to umount volumes: %v", container.ID, err)
}
}
container.CancelAttachContext()
}
// Register makes a container object usable by the daemon as <container.ID>
func (daemon *Daemon) Register(container *container.Container) error {
if daemon.Exists(container.ID) {
return fmt.Errorf("Container is already loaded")
}
if err := validateID(container.ID); err != nil {
return err
}
if err := daemon.ensureName(container); err != nil {
return err
}
// Attach to stdout and stderr
if container.Config.OpenStdin {
container.NewInputPipes()
} else {
container.NewNopInputPipe()
}
daemon.containers.Add(container.ID, container)
// don't update the Suffixarray if we're starting up
// we'll waste time if we update it for every container
daemon.idIndex.Add(container.ID)
if container.IsRunning() {
logrus.Debugf("killing old running container %s", container.ID)
// Set exit code to 128 + SIGKILL (9) to properly represent unsuccessful exit
container.SetStoppedLocking(&execdriver.ExitStatus{ExitCode: 137})
// use the current driver and ensure that the container is dead x.x
cmd := &execdriver.Command{
CommonCommand: execdriver.CommonCommand{
ID: container.ID,
},
}
daemon.execDriver.Terminate(cmd)
container.UnmountIpcMounts(mount.Unmount)
daemon.Unmount(container)
if err := container.ToDiskLocking(); err != nil {
logrus.Errorf("Error saving stopped state to disk: %v", err)
}
}
if err := daemon.prepareMountPoints(container); err != nil {
return err
}
return nil
}
// Cleanup releases any network resources allocated to the container along with any rules
// around how containers are linked together. It also unmounts the container's root filesystem.
func (daemon *Daemon) Cleanup(container *container.Container) {
daemon.releaseNetwork(container)
container.UnmountIpcMounts(detachMounted)
daemon.conditionalUnmountOnCleanup(container)
for _, eConfig := range container.ExecCommands.Commands() {
daemon.unregisterExecCommand(container, eConfig)
}
if err := container.UnmountVolumes(false); err != nil {
logrus.Warnf("%s cleanup: Failed to umount volumes: %v", container.ID, err)
}
}