func ValidateJobSpec(spec *extensions.JobSpec) errs.ValidationErrorList {
allErrs := errs.ValidationErrorList{}
if spec.Parallelism != nil {
allErrs = append(allErrs, apivalidation.ValidatePositiveField(int64(*spec.Parallelism), "parallelism")...)
}
if spec.Completions != nil {
allErrs = append(allErrs, apivalidation.ValidatePositiveField(int64(*spec.Completions), "completions")...)
}
if spec.Selector == nil {
allErrs = append(allErrs, errs.NewFieldRequired("selector"))
} else {
allErrs = append(allErrs, ValidatePodSelector(spec.Selector).Prefix("selector")...)
}
if selector, err := extensions.PodSelectorAsSelector(spec.Selector); err == nil {
labels := labels.Set(spec.Template.Labels)
if !selector.Matches(labels) {
allErrs = append(allErrs, errs.NewFieldInvalid("template.metadata.labels", spec.Template.Labels, "selector does not match template"))
}
}
allErrs = append(allErrs, apivalidation.ValidatePodTemplateSpec(&spec.Template).Prefix("template")...)
if spec.Template.Spec.RestartPolicy != api.RestartPolicyOnFailure &&
spec.Template.Spec.RestartPolicy != api.RestartPolicyNever {
allErrs = append(allErrs, errs.NewFieldValueNotSupported("template.spec.restartPolicy",
spec.Template.Spec.RestartPolicy, []string{string(api.RestartPolicyOnFailure), string(api.RestartPolicyNever)}))
}
return allErrs
}
// GetPodControllers returns a list of jobs managing a pod. Returns an error only if no matching jobs are found.
func (s *StoreToJobLister) GetPodJobs(pod *api.Pod) (jobs []extensions.Job, err error) {
var selector labels.Selector
var job extensions.Job
if len(pod.Labels) == 0 {
err = fmt.Errorf("No jobs found for pod %v because it has no labels", pod.Name)
return
}
for _, m := range s.Store.List() {
job = *m.(*extensions.Job)
if job.Namespace != pod.Namespace {
continue
}
selector, _ = extensions.PodSelectorAsSelector(job.Spec.Selector)
if !selector.Matches(labels.Set(pod.Labels)) {
continue
}
jobs = append(jobs, job)
}
if len(jobs) == 0 {
err = fmt.Errorf("Could not find jobs for pod %s in namespace %s with labels: %v", pod.Name, pod.Namespace, pod.Labels)
}
return
}
// syncJob will sync the job with the given key if it has had its expectations fulfilled, meaning
// it did not expect to see any more of its pods created or deleted. This function is not meant to be invoked
// concurrently with the same key.
func (jm *JobController) syncJob(key string) error {
startTime := time.Now()
defer func() {
glog.V(4).Infof("Finished syncing job %q (%v)", key, time.Now().Sub(startTime))
}()
obj, exists, err := jm.jobStore.Store.GetByKey(key)
if !exists {
glog.V(4).Infof("Job has been deleted: %v", key)
jm.expectations.DeleteExpectations(key)
return nil
}
if err != nil {
glog.Errorf("Unable to retrieve job %v from store: %v", key, err)
jm.queue.Add(key)
return err
}
job := *obj.(*extensions.Job)
if !jm.podStoreSynced() {
// Sleep so we give the pod reflector goroutine a chance to run.
time.Sleep(replicationcontroller.PodStoreSyncedPollPeriod)
glog.V(4).Infof("Waiting for pods controller to sync, requeuing job %v", job.Name)
jm.enqueueController(&job)
return nil
}
// Check the expectations of the job before counting active pods, otherwise a new pod can sneak in
// and update the expectations after we've retrieved active pods from the store. If a new pod enters
// the store after we've checked the expectation, the job sync is just deferred till the next relist.
jobKey, err := controller.KeyFunc(&job)
if err != nil {
glog.Errorf("Couldn't get key for job %#v: %v", job, err)
return err
}
jobNeedsSync := jm.expectations.SatisfiedExpectations(jobKey)
selector, _ := extensions.PodSelectorAsSelector(job.Spec.Selector)
podList, err := jm.podStore.Pods(job.Namespace).List(selector)
if err != nil {
glog.Errorf("Error getting pods for job %q: %v", key, err)
jm.queue.Add(key)
return err
}
activePods := controller.FilterActivePods(podList.Items)
active := len(activePods)
succeeded, failed := getStatus(podList.Items)
if jobNeedsSync {
active = jm.manageJob(activePods, succeeded, &job)
}
completions := succeeded
if completions == *job.Spec.Completions {
job.Status.Conditions = append(job.Status.Conditions, newCondition())
}
// no need to update the job if the status hasn't changed since last time
if job.Status.Active != active || job.Status.Succeeded != succeeded || job.Status.Failed != failed {
job.Status.Active = active
job.Status.Succeeded = succeeded
job.Status.Failed = failed
if err := jm.updateHandler(&job); err != nil {
glog.Errorf("Failed to update job %v, requeuing. Error: %v", job.Name, err)
jm.enqueueController(&job)
}
}
return nil
}