abd72d4008
- some method names were changed to have a 'Locking' suffix, as the downcased versions already existed, and the existing functions simply had locks around the already downcased version. - deleting unused functions - package comment - magic numbers replaced by golang constants - comments all over Signed-off-by: Morgan Bauer <mbauer@us.ibm.com>
48 lines
1 KiB
Go
48 lines
1 KiB
Go
package daemon
|
|
|
|
import (
|
|
"fmt"
|
|
)
|
|
|
|
// ContainerRename changes the name of a container, using the oldName
|
|
// to find the container. An error is returned if newName is already
|
|
// reserved.
|
|
func (daemon *Daemon) ContainerRename(oldName, newName string) error {
|
|
if oldName == "" || newName == "" {
|
|
return fmt.Errorf("usage: docker rename OLD_NAME NEW_NAME")
|
|
}
|
|
|
|
container, err := daemon.Get(oldName)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
oldName = container.Name
|
|
|
|
container.Lock()
|
|
defer container.Unlock()
|
|
if newName, err = daemon.reserveName(container.ID, newName); err != nil {
|
|
return fmt.Errorf("Error when allocating new name: %s", err)
|
|
}
|
|
|
|
container.Name = newName
|
|
|
|
undo := func() {
|
|
container.Name = oldName
|
|
daemon.reserveName(container.ID, oldName)
|
|
daemon.containerGraphDB.Delete(newName)
|
|
}
|
|
|
|
if err := daemon.containerGraphDB.Delete(oldName); err != nil {
|
|
undo()
|
|
return fmt.Errorf("Failed to delete container %q: %v", oldName, err)
|
|
}
|
|
|
|
if err := container.toDisk(); err != nil {
|
|
undo()
|
|
return err
|
|
}
|
|
|
|
container.logEvent("rename")
|
|
return nil
|
|
}
|