Clone job: increase memory limit (OOMKilled)

Clone jobs might fail due to OOMKilled occasionally, one reason is due to lack of setting memory request and limit to clone files container.

This MR adds that configuration, thus avoiding such errors.

controllers/drupalsite_resources.go

@@ -60,6 +60,7 @@ const (
 	webDAVDefaultLogin string = "admin"
 	// Variable to set the used Memory for all Jobs generated by the Operator
 	jobMemoryRequest string = "512Mi"
+	jobMemoryLimit   string = "4Gi"
 )
 
 var (
@@ -1481,6 +1482,14 @@ func jobForDrupalSiteClone(currentobject *batchv1.Job, databaseSecret string, d
 				Name:            "dest-clone",
 				ImagePullPolicy: "Always",
 				Command:         cloneSource(emptyDir + "dbBackUp.sql"),
+				Resources: corev1.ResourceRequirements{
+					Requests: corev1.ResourceList{
+						corev1.ResourceMemory: resource.MustParse(jobMemoryRequest),
+					},
+					Limits: corev1.ResourceList{
+						corev1.ResourceMemory: resource.MustParse(jobMemoryLimit),
+					},
+				},
 				Env: []corev1.EnvVar{
 					{
 						Name:  "DRUPAL_SHARED_VOLUME",