func (c *Container) renameOld(client *dockerClient.Client, opts *dockerClient.CreateContainerOptions) error {
if len(opts.Name) == 0 {
return nil
}
existing, err := inspect(client, opts.Name)
if _, ok := err.(*dockerClient.NoSuchContainer); ok {
return nil
}
if err != nil {
return nil
}
if c.Container != nil && existing.ID == c.Container.ID {
return nil
}
var newName string
if label, ok := existing.Config.Labels[config.HASH]; ok {
newName = fmt.Sprintf("%s-%s", existing.Name, label)
} else {
newName = fmt.Sprintf("%s-unknown-%s", existing.Name, util.RandSeq(12))
}
if existing.State.Running {
err := client.StopContainer(existing.ID, 2)
if err != nil {
return err
}
_, err = client.WaitContainer(existing.ID)
if err != nil {
return err
}
}
log.Debugf("Renaming %s to %s", existing.Name, newName)
return client.RenameContainer(dockerClient.RenameContainerOptions{ID: existing.ID, Name: newName})
}