func ReaperFor(kind unversioned.GroupKind, c client.Interface) (Reaper, error) {
switch kind {
case api.Kind("ReplicationController"):
return &ReplicationControllerReaper{c, Interval, Timeout}, nil
case extensions.Kind("ReplicaSet"):
return &ReplicaSetReaper{c, Interval, Timeout}, nil
case extensions.Kind("DaemonSet"):
return &DaemonSetReaper{c, Interval, Timeout}, nil
case api.Kind("Pod"):
return &PodReaper{c}, nil
case api.Kind("Service"):
return &ServiceReaper{c}, nil
case extensions.Kind("Job"), batch.Kind("Job"):
return &JobReaper{c, Interval, Timeout}, nil
case extensions.Kind("Deployment"):
return &DeploymentReaper{c, Interval, Timeout}, nil
}
return nil, &NoSuchReaperError{kind}
}
func (reaper *JobReaper) Stop(namespace, name string, timeout time.Duration, gracePeriod *api.DeleteOptions) error {
jobs := reaper.Batch().Jobs(namespace)
pods := reaper.Pods(namespace)
scaler, err := ScalerFor(batch.Kind("Job"), *reaper)
if err != nil {
return err
}
job, err := jobs.Get(name)
if err != nil {
return err
}
if timeout == 0 {
// we will never have more active pods than job.Spec.Parallelism
parallelism := *job.Spec.Parallelism
timeout = Timeout + time.Duration(10*parallelism)*time.Second
}
// TODO: handle overlapping jobs
retry := NewRetryParams(reaper.pollInterval, reaper.timeout)
waitForJobs := NewRetryParams(reaper.pollInterval, timeout)
if err = scaler.Scale(namespace, name, 0, nil, retry, waitForJobs); err != nil {
return err
}
// at this point only dead pods are left, that should be removed
selector, _ := unversioned.LabelSelectorAsSelector(job.Spec.Selector)
options := api.ListOptions{LabelSelector: selector}
podList, err := pods.List(options)
if err != nil {
return err
}
errList := []error{}
for _, pod := range podList.Items {
if err := pods.Delete(pod.Name, gracePeriod); err != nil {
// ignores the error when the pod isn't found
if !errors.IsNotFound(err) {
errList = append(errList, err)
}
}
}
if len(errList) > 0 {
return utilerrors.NewAggregate(errList)
}
// once we have all the pods removed we can safely remove the job itself
return jobs.Delete(name, nil)
}