fix(helm): difference between preferred... and required...

- preferred (soft) pod (anti) affinity has weights and podAffinityTerm, required does not
- required (hard) pod (anti) affinity has directly array with labelSelector (no weight and no podAffinityTerm)

charts/backoffice/templates/deployment.yaml

@@ -56,13 +56,13 @@ spec:
             {{- toYaml .Values.backend.resources | nindent 12 }}
       affinity:
         podAntiAffinity:
-          # requiredDuringSchedulingIgnoredDuringExecution
           preferredDuringSchedulingIgnoredDuringExecution:
           - weight: 100
-            labelSelector:
-              matchExpressions:
-              - key: app.kubernetes.io/instance
-                operator: In
-                values:
-                - {{ .Release.Name }}
+            podAffinityTerm:
+              labelSelector:
+                matchExpressions:
+                - key: app.kubernetes.io/instance
+                  operator: In
+                  values:
+                  - {{ .Release.Name }}
               topologyKey: kubernetes.io/hostname