func (daemon *Daemon) ContainerStart(job *engine.Job) engine.Status {
if len(job.Args) < 1 {
return job.Errorf("Usage: %s container_id", job.Name)
}
var (
name = job.Args[0]
container = daemon.Get(name)
)
if container == nil {
return job.Errorf("No such container: %s", name)
}
if container.State.IsRunning() {
return job.Errorf("Container already started")
}
// If no environment was set, then no hostconfig was passed.
if len(job.Environ()) > 0 {
hostConfig := runconfig.ContainerHostConfigFromJob(job)
if err := daemon.setHostConfig(container, hostConfig); err != nil {
return job.Error(err)
}
}
if err := container.Start(); err != nil {
return job.Errorf("Cannot start container %s: %s", name, err)
}
return engine.StatusOK
}