2014-07-31 21:12:12 +00:00
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package daemon
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import (
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"fmt"
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"os"
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"path"
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2015-03-26 22:22:04 +00:00
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"github.com/Sirupsen/logrus"
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2014-07-31 21:12:12 +00:00
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)
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2015-07-30 21:01:53 +00:00
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// ContainerRmConfig is a holder for passing in runtime config.
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2015-04-08 21:38:53 +00:00
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type ContainerRmConfig struct {
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ForceRemove, RemoveVolume, RemoveLink bool
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}
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2014-07-31 21:12:12 +00:00
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2015-07-30 21:01:53 +00:00
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// ContainerRm removes the container id from the filesystem. An error
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// is returned if the container is not found, or if the remove
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// fails. If the remove succeeds, the container name is released, and
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// network links are removed.
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2015-04-08 21:38:53 +00:00
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func (daemon *Daemon) ContainerRm(name string, config *ContainerRmConfig) error {
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2014-12-16 23:06:35 +00:00
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container, err := daemon.Get(name)
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if err != nil {
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2015-03-25 07:44:12 +00:00
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return err
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2014-08-28 14:18:08 +00:00
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}
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2015-04-08 21:38:53 +00:00
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if config.RemoveLink {
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2014-07-31 21:12:12 +00:00
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name, err := GetFullContainerName(name)
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if err != nil {
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2015-03-25 07:44:12 +00:00
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return err
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2014-07-31 21:12:12 +00:00
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}
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parent, n := path.Split(name)
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if parent == "/" {
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2015-03-25 07:44:12 +00:00
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return fmt.Errorf("Conflict, cannot remove the default name of the container")
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2014-07-31 21:12:12 +00:00
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}
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2015-07-30 21:01:53 +00:00
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pe := daemon.containerGraph().Get(parent)
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2014-07-31 21:12:12 +00:00
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if pe == nil {
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2015-03-25 07:44:12 +00:00
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return fmt.Errorf("Cannot get parent %s for name %s", parent, name)
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2014-07-31 21:12:12 +00:00
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}
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2015-07-30 21:01:53 +00:00
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if err := daemon.containerGraph().Delete(name); err != nil {
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2015-05-06 22:39:29 +00:00
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return err
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}
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2015-07-20 22:19:05 +00:00
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parentContainer, _ := daemon.Get(pe.ID())
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2014-07-31 21:12:12 +00:00
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if parentContainer != nil {
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2015-07-30 21:01:53 +00:00
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if err := parentContainer.updateNetwork(); err != nil {
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2015-07-20 22:19:05 +00:00
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logrus.Debugf("Could not update network to remove link %s: %v", n, err)
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}
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2014-07-31 21:12:12 +00:00
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}
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2015-03-25 07:44:12 +00:00
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return nil
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2014-07-31 21:12:12 +00:00
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}
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2015-05-26 19:38:52 +00:00
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if err := daemon.rm(container, config.ForceRemove); err != nil {
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return fmt.Errorf("Cannot destroy container %s: %v", name, err)
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}
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2015-03-12 19:26:17 +00:00
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2015-09-07 07:52:13 +00:00
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if err := container.removeMountPoints(config.RemoveVolume); err != nil {
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logrus.Errorf("%v", err)
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}
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2015-03-25 07:44:12 +00:00
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return nil
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2014-07-31 21:12:12 +00:00
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}
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// Destroy unregisters a container from the daemon and cleanly removes its contents from the filesystem.
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2015-05-26 19:38:52 +00:00
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func (daemon *Daemon) rm(container *Container, forceRemove bool) (err error) {
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if container.IsRunning() {
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if !forceRemove {
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return fmt.Errorf("Conflict, You cannot remove a running container. Stop the container before attempting removal or use -f")
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}
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if err := container.Kill(); err != nil {
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return fmt.Errorf("Could not kill running container, cannot remove - %v", err)
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}
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2014-07-31 21:12:12 +00:00
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}
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2015-05-27 02:22:03 +00:00
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// stop collection of stats for the container regardless
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// if stats are currently getting collected.
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daemon.statsCollector.stopCollection(container)
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2014-07-31 21:12:12 +00:00
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element := daemon.containers.Get(container.ID)
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if element == nil {
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return fmt.Errorf("Container %v not found - maybe it was already destroyed?", container.ID)
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}
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2015-03-12 19:26:17 +00:00
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// Container state RemovalInProgress should be used to avoid races.
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2015-07-30 21:01:53 +00:00
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if err = container.setRemovalInProgress(); err != nil {
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2015-03-12 19:26:17 +00:00
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return fmt.Errorf("Failed to set container state to RemovalInProgress: %s", err)
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}
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2015-07-30 21:01:53 +00:00
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defer container.resetRemovalInProgress()
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2015-03-12 19:26:17 +00:00
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if err = container.Stop(3); err != nil {
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2014-07-31 21:12:12 +00:00
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return err
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}
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2015-03-12 19:26:17 +00:00
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// Mark container dead. We don't want anybody to be restarting it.
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2015-07-30 21:01:53 +00:00
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container.setDead()
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2015-03-12 19:26:17 +00:00
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// Save container state to disk. So that if error happens before
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// container meta file got removed from disk, then a restart of
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// docker should not make a dead container alive.
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2015-07-30 21:01:53 +00:00
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if err := container.toDiskLocking(); err != nil {
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2015-07-02 10:24:35 +00:00
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logrus.Errorf("Error saving dying container to disk: %v", err)
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}
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2015-03-12 19:26:17 +00:00
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// If force removal is required, delete container from various
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// indexes even if removal failed.
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defer func() {
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if err != nil && forceRemove {
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daemon.idIndex.Delete(container.ID)
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daemon.containers.Delete(container.ID)
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2015-04-27 20:10:59 +00:00
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os.RemoveAll(container.root)
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2015-07-30 21:01:53 +00:00
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container.logEvent("destroy")
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2015-03-12 19:26:17 +00:00
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}
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}()
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2015-07-30 21:01:53 +00:00
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if _, err := daemon.containerGraphDB.Purge(container.ID); err != nil {
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2015-03-26 22:22:04 +00:00
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logrus.Debugf("Unable to remove container from link graph: %s", err)
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2014-07-31 21:12:12 +00:00
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}
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2015-03-12 19:26:17 +00:00
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if err = daemon.driver.Remove(container.ID); err != nil {
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2014-07-31 21:12:12 +00:00
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return fmt.Errorf("Driver %s failed to remove root filesystem %s: %s", daemon.driver, container.ID, err)
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}
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2015-07-25 00:49:43 +00:00
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initID := fmt.Sprintf("%s-init", container.ID)
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if err := daemon.driver.Remove(initID); err != nil {
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return fmt.Errorf("Driver %s failed to remove init filesystem %s: %s", daemon.driver, initID, err)
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2014-07-31 21:12:12 +00:00
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}
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2015-03-12 19:26:17 +00:00
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if err = os.RemoveAll(container.root); err != nil {
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2014-07-31 21:12:12 +00:00
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return fmt.Errorf("Unable to remove filesystem for %v: %v", container.ID, err)
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}
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2015-03-12 19:26:17 +00:00
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if err = daemon.execDriver.Clean(container.ID); err != nil {
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2014-09-10 07:34:38 +00:00
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return fmt.Errorf("Unable to remove execdriver data for %s: %s", container.ID, err)
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}
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2014-07-31 21:12:12 +00:00
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selinuxFreeLxcContexts(container.ProcessLabel)
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2015-03-12 19:26:17 +00:00
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daemon.idIndex.Delete(container.ID)
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daemon.containers.Delete(container.ID)
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2014-07-31 21:12:12 +00:00
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2015-07-30 21:01:53 +00:00
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container.logEvent("destroy")
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2014-07-31 21:12:12 +00:00
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return nil
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}
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2015-05-19 20:05:25 +00:00
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2015-06-12 13:25:32 +00:00
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// VolumeRm removes the volume with the given name.
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// If the volume is referenced by a container it is not removed
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// This is called directly from the remote API
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func (daemon *Daemon) VolumeRm(name string) error {
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v, err := daemon.volumes.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.volumes.Remove(v); err != nil {
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if err == ErrVolumeInUse {
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return fmt.Errorf("Conflict: %v", err)
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}
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2015-09-09 02:01:02 +00:00
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return fmt.Errorf("Error while removing volume %s: %v", name, err)
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2015-06-12 13:25:32 +00:00
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}
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return nil
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2015-05-19 20:05:25 +00:00
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}
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