func (daemon *Daemon) CreatePod(podId string, podSpec *apitypes.UserPod) (*pod.XPod, error) {
//FIXME: why restrict to 1024
if daemon.PodList.CountRunning() >= 1024 {
return nil, fmt.Errorf("There have already been %d running Pods", 1024)
}
if podId == "" {
podId = fmt.Sprintf("pod-%s", utils.RandStr(10, "alpha"))
}
if podSpec.Id == "" {
podSpec.Id = podId
}
if _, ok := daemon.PodList.Get(podSpec.Id); ok {
return nil, fmt.Errorf("pod %s already exist", podSpec.Id)
}
if err := podSpec.Validate(); err != nil {
return nil, err
}
factory := pod.NewPodFactory(daemon.Factory, daemon.PodList, daemon.db, daemon.Storage, daemon.Daemon, daemon.DefaultLog)
p, err := pod.CreateXPod(factory, podSpec)
if err != nil {
glog.Errorf("%s: failed to add pod: %v", podSpec.Id, err)
return nil, err
}
return p, nil
}
func (daemon *Daemon) Restore() error {
if daemon.GetPodNum() == 0 {
return nil
}
ch := pod.LoadAllPods(daemon.db)
if ch == nil {
estr := "Cannot list pods in leveldb"
glog.Error(estr)
return errors.New(estr)
}
for {
layout, ok := <-ch
if !ok {
break
}
if layout == nil {
estr := "error during load pods from leveldb"
glog.Error(estr)
return errors.New(estr)
}
glog.V(1).Infof("reloading pod %s: %#v", layout.Id, layout)
fc := pod.NewPodFactory(daemon.Factory, daemon.PodList, daemon.db, daemon.Storage, daemon.Daemon, daemon.DefaultLog)
p, err := pod.LoadXPod(fc, layout)
if err != nil {
glog.Warningf("Got a unexpected error when creating(load) pod %s, %v", layout.Id, err)
continue
}
if glog.V(3) {
p.Log(pod.TRACE, "containers in pod %s: %v", p.Id(), p.ContainerIds())
}
}
return nil
}