[Bug] Sidecar mode shouldn't restart head pod when head pod is deleted (#4141)

* [Bug] Sidecar mode shouldn't restart head pod when head pod is deleted

Signed-off-by: 400Ping <fourhundredping@gmail.com>

* [Fix] Fix e2e error

Signed-off-by: 400Ping <fourhundredping@gmail.com>

* [Fix] fix according to rueian's comment

Signed-off-by: 400Ping <fourhundredping@gmail.com>

* [Chore] fix ci error

Signed-off-by: 400Ping <fourhundredping@gmail.com>

* Update ray-operator/controllers/ray/raycluster_controller.go

Co-authored-by: Han-Ju Chen (Future-Outlier) <eric901201@gmail.com>
Signed-off-by: Ping <fourhundredping@gmail.com>

* Update ray-operator/controllers/ray/rayjob_controller.go

Co-authored-by: Han-Ju Chen (Future-Outlier) <eric901201@gmail.com>
Signed-off-by: Ping <fourhundredping@gmail.com>

* update

Signed-off-by: Future-Outlier <eric901201@gmail.com>

* update

Signed-off-by: Future-Outlier <eric901201@gmail.com>

* Trigger CI

Signed-off-by: Future-Outlier <eric901201@gmail.com>

---------

Signed-off-by: 400Ping <fourhundredping@gmail.com>
Signed-off-by: Ping <fourhundredping@gmail.com>
Signed-off-by: Future-Outlier <eric901201@gmail.com>
Co-authored-by: Han-Ju Chen (Future-Outlier) <eric901201@gmail.com>

Author: 400Ping

ray-operator/controllers/ray/raycluster_controller.go

@@ -619,6 +619,16 @@ func (r *RayClusterReconciler) reconcilePods(ctx context.Context, instance *rayv
 			return errstd.New(reason)
 		}
 	} else if len(headPods.Items) == 0 {
+		originatedFrom := utils.GetCRDType(instance.Labels[utils.RayOriginatedFromCRDLabelKey])
+		if originatedFrom == utils.RayJobCRD {
+			if meta.IsStatusConditionTrue(instance.Status.Conditions, string(rayv1.RayClusterProvisioned)) {
+				logger.Info(
+					"reconcilePods: Found 0 head Pods for a RayJob-managed RayCluster; skipping head creation to let RayJob controller handle the failure",
+					"rayCluster", instance.Name,
+				)
+				return nil
+			}
+		}
 		// Create head Pod if it does not exist.
 		logger.Info("reconcilePods: Found 0 head Pods; creating a head Pod for the RayCluster.")
 		if err := r.createHeadPod(ctx, *instance); err != nil {

ray-operator/test/e2erayjob/rayjob_test.go

@@ -310,10 +310,10 @@ env_vars:
 		g.Eventually(RayJob(test, rayJob.Namespace, rayJob.Name), TestTimeoutMedium).
 			Should(WithTransform(RayJobDeploymentStatus, Equal(rayv1.JobDeploymentStatusFailed)))
 		g.Eventually(RayJob(test, rayJob.Namespace, rayJob.Name), TestTimeoutMedium).
-			Should(WithTransform(RayJobReason, Equal(rayv1.AppFailed)))
+			Should(WithTransform(RayJobReason, Equal(rayv1.JobDeploymentStatusTransitionGracePeriodExceeded)))
 		g.Eventually(RayJob(test, rayJob.Namespace, rayJob.Name), TestTimeoutMedium).
 			Should(WithTransform(func(job *rayv1.RayJob) string { return job.Status.Message },
-				Equal("Submitter completed but Ray job not found in RayCluster.")))
+				MatchRegexp("The RayJob submitter finished at .* but the ray job did not reach terminal state within .*")))
 
 		// Cleanup
 		err = test.Client().Ray().RayV1().RayJobs(namespace.Name).Delete(test.Ctx(), rayJob.Name, metav1.DeleteOptions{})