🚀(helm) transform migrate job to Presync job

Apply db migration before syncing all the pods.
It avoids triggering errors when running the migrate job.

src/helm/desk/templates/backend_job.yaml

@@ -5,6 +5,10 @@ apiVersion: batch/v1
 kind: Job
 metadata:
   name: {{ $fullName }}-migrate
+  {{- with .Values.backend.migrateJobAnnotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
   labels:
     {{- include "desk.common.labels" (list . $component) | nindent 4 }}
 spec:

src/helm/desk/values.yaml

@@ -88,6 +88,9 @@ backend:
   ## @param backend.sidecars Add sidecars containers to backend deployment
   sidecars: []
 
+  ## @param backend.migrateJobAnnotations Annotations for the migrate job
+  migrateJobAnnotations: {}
+
   ## @param backend.securityContext Configure backend Pod security context
   securityContext: null
 

src/helm/env.d/staging/values.desk.yaml.gotmpl

@@ -4,6 +4,9 @@ image:
   tag: "main"
 
 backend:
+  migrateJobAnnotations:
+    argocd.argoproj.io/hook: PreSync
+    argocd.argoproj.io/hook-delete-policy: HookSucceeded
   envVars:
     DJANGO_CSRF_TRUSTED_ORIGINS: http://desk-staging.beta.numerique.gouv.fr,https://desk-staging.beta.numerique.gouv.fr
     DJANGO_CONFIGURATION: Production