refactor podAffinity generation (#2156)

charts/postgres-operator/crds/operatorconfigurations.yaml

@@ -278,12 +278,12 @@ spec:
                   pdb_name_format:
                     type: string
                     default: "postgres-{cluster}-pdb"
-                  pod_antiaffinity_topology_key:
-                    type: string
-                    default: "kubernetes.io/hostname"
                   pod_antiaffinity_preferred_during_scheduling:
                     type: boolean
                     default: false
+                  pod_antiaffinity_topology_key:
+                    type: string
+                    default: "kubernetes.io/hostname"
                   pod_environment_configmap:
                     type: string
                   pod_environment_secret:

charts/postgres-operator/values.yaml

@@ -165,10 +165,10 @@ configKubernetes:
 
   # defines the template for PDB (Pod Disruption Budget) names
   pdb_name_format: "postgres-{cluster}-pdb"
+  # switches pod anti affinity type to `preferredDuringSchedulingIgnoredDuringExecution`
+  pod_antiaffinity_preferred_during_scheduling: false
   # override topology key for pod anti affinity
   pod_antiaffinity_topology_key: "kubernetes.io/hostname"
-  # switches pod anti affinity type to `preferredDuringSchedulingIgnoredDuringExecution`
-  # pod_antiaffinity_preferred_during_scheduling: true
   # namespaced name of the ConfigMap with environment variables to populate on every pod
   # pod_environment_configmap: "default/my-custom-config"
   # name of the Secret (in cluster namespace) with environment variables to populate on every pod