feat(helm): Do not allow multiple celery beats

Author: kiblik

helm/defectdojo/Chart.yaml

@@ -34,4 +34,6 @@ dependencies:
 #     description: Critical bug
 annotations:
   artifacthub.io/prerelease: "true"
-  artifacthub.io/changes: ""
+  artifacthub.io/changes: |
+    - kind: added
+      description: Checker for maximal number of celery beats

helm/defectdojo/README.md

@@ -537,7 +537,7 @@ A Helm chart for Kubernetes to install DefectDojo
 | celery.beat.nodeSelector | object | `{}` |  |
 | celery.beat.podAnnotations | object | `{}` |  |
 | celery.beat.readinessProbe | object | `{}` |  |
-| celery.beat.replicas | int | `1` |  |
+| celery.beat.replicas | int | `1` | Multiple replicas are not allowed (Beat is intended to be a singleton) because scaling to >1 will double-run schedules |
 | celery.beat.resources.limits.cpu | string | `"2000m"` |  |
 | celery.beat.resources.limits.memory | string | `"256Mi"` |  |
 | celery.beat.resources.requests.cpu | string | `"100m"` |  |

helm/defectdojo/values.schema.json

@@ -77,7 +77,9 @@
                             "type": "object"
                         },
                         "replicas": {
-                            "type": "integer"
+                            "description": "Multiple replicas are not allowed (Beat is intended to be a singleton) because scaling to \u003e1 will double-run schedules",
+                            "type": "integer",
+                            "maximum": 1
                         },
                         "resources": {
                             "type": "object",

helm/defectdojo/values.yaml

@@ -182,6 +182,8 @@ celery:
     podAnnotations: {}
     # Enable readiness probe for Celery beat container.
     readinessProbe: {}
+    # @schema maximum:1
+    # -- Multiple replicas are not allowed (Beat is intended to be a singleton) because scaling to >1 will double-run schedules
     replicas: 1
     resources:
       requests: