Automation Orchestrator install and tweaks

roles/cloudnativepg_operator/defaults/main.yml

@@ -15,6 +15,9 @@ cloudnativepg_operator_cluster_namespace: automation-orchestrator
 cloudnativepg_operator_cluster_name: orchestrator-postgres
 cloudnativepg_operator_owner_user: orchestrator
 cloudnativepg_operator_instances: 1
+# A primary PDB on a single instance is permanently at its limit (PodDisruptionBudgetAtLimit)
+# and blocks node drains; CNPG recommends disabling it for single-instance dev clusters.
+cloudnativepg_operator_enable_pdb: "{{ cloudnativepg_operator_instances | int > 1 }}"
 cloudnativepg_operator_image_name: ghcr.io/cloudnative-pg/postgresql:15
 cloudnativepg_operator_storage_size: 5Gi
 cloudnativepg_operator_storage_class: ""

roles/cloudnativepg_operator/meta/argument_specs.yml

@@ -49,6 +49,11 @@ argument_specs:
         description: Number of Postgres instances in the Cluster (1 = no HA).
         type: int
         default: 1
+      cloudnativepg_operator_enable_pdb:
+        description: >-
+          Create the CNPG primary PodDisruptionBudget. Defaults to true only when instances > 1;
+          a single-instance PDB is always at its limit and blocks node drains.
+        type: bool
       cloudnativepg_operator_image_name:
         description: PostgreSQL container image for the Cluster.
         type: str

roles/cloudnativepg_operator/tasks/main.yml

@@ -166,6 +166,7 @@
         {{
           {
             'instances': cloudnativepg_operator_instances,
+            'enablePDB': cloudnativepg_operator_enable_pdb | bool,
             'imageName': cloudnativepg_operator_image_name,
             'bootstrap': {
               'initdb': {