// getDeploymentForPod returns the deployment that manages the given Pod.
// If there are multiple deployments for a given Pod, only return the oldest one.
func (dc *DeploymentController) getDeploymentForPod(pod *api.Pod) *extensions.Deployment {
deployments, err := dc.dLister.GetDeploymentsForPod(pod)
if err != nil || len(deployments) == 0 {
glog.V(4).Infof("Error: %v. No deployment found for Pod %v, deployment controller will avoid syncing.", err, pod.Name)
return nil
}
if len(deployments) > 1 {
sort.Sort(util.BySelectorLastUpdateTime(deployments))
glog.Errorf("user error! more than one deployment is selecting pod %s/%s with labels: %#v, returning %s/%s", pod.Namespace, pod.Name, pod.Labels, deployments[0].Namespace, deployments[0].Name)
}
return deployments[0]
}
// getDeploymentForReplicaSet returns the deployment managing the given ReplicaSet.
func (dc *DeploymentController) getDeploymentForReplicaSet(rs *extensions.ReplicaSet) *extensions.Deployment {
deployments, err := dc.dLister.GetDeploymentsForReplicaSet(rs)
if err != nil || len(deployments) == 0 {
glog.V(4).Infof("Error: %v. No deployment found for ReplicaSet %v, deployment controller will avoid syncing.", err, rs.Name)
return nil
}
// Because all ReplicaSet's belonging to a deployment should have a unique label key,
// there should never be more than one deployment returned by the above method.
// If that happens we should probably dynamically repair the situation by ultimately
// trying to clean up one of the controllers, for now we just return the older one
if len(deployments) > 1 {
sort.Sort(util.BySelectorLastUpdateTime(deployments))
glog.Errorf("user error! more than one deployment is selecting replica set %s/%s with labels: %#v, returning %s/%s", rs.Namespace, rs.Name, rs.Labels, deployments[0].Namespace, deployments[0].Name)
}
return deployments[0]
}