func (r *Registry) UpdatePod(ctx api.Context, pod *api.Pod) error {
var podOut api.Pod
podKey, err := makePodKey(ctx, pod.Name)
if err != nil {
return err
}
err = r.EtcdHelper.ExtractObj(podKey, &podOut, false)
if err != nil {
return err
}
scheduled := podOut.Status.Host != ""
if scheduled {
pod.Status.Host = podOut.Status.Host
// If it's already been scheduled, limit the types of updates we'll accept.
errs := validation.ValidatePodUpdate(pod, &podOut)
if len(errs) != 0 {
return errors.NewInvalid("Pod", pod.Name, errs)
}
}
// There's no race with the scheduler, because either this write will fail because the host
// has been updated, or the host update will fail because this pod has been updated.
err = r.EtcdHelper.SetObj(podKey, pod)
if err != nil {
return err
}
if !scheduled {
// never scheduled, just update.
return nil
}
containerKey := makeBoundPodsKey(podOut.Status.Host)
return r.AtomicUpdate(containerKey, &api.BoundPods{}, func(in runtime.Object) (runtime.Object, error) {
boundPods := in.(*api.BoundPods)
for ix := range boundPods.Items {
if boundPods.Items[ix].Name == pod.Name {
boundPods.Items[ix].Spec = pod.Spec
// sync cpuset and network
boundPods.Items[ix].Res.Network = pod.Status.Network
boundPods.Items[ix].Res.CpuSet = pod.Status.CpuSet
return boundPods, nil
}
}
// This really shouldn't happen
glog.Warningf("Couldn't find: %s in %#v", pod.Name, boundPods)
return boundPods, fmt.Errorf("failed to update pod, couldn't find %s in %#v", pod.Name, boundPods)
})
}
// ValidateUpdate is the default update validation for an end user.
func (podStrategy) ValidateUpdate(ctx api.Context, obj, old runtime.Object) fielderrors.ValidationErrorList {
errorList := validation.ValidatePod(obj.(*api.Pod))
return append(errorList, validation.ValidatePodUpdate(obj.(*api.Pod), old.(*api.Pod))...)
}
// ValidateUpdate is the default update validation for an end user.
func (podStrategy) ValidateUpdate(obj, old runtime.Object) errors.ValidationErrorList {
return validation.ValidatePodUpdate(obj.(*api.Pod), old.(*api.Pod))
}
