zabbix: include statefulset defaults

apps/zabbix/zabbix.yaml

@@ -18,12 +18,17 @@ metadata:
   namespace: zabbix
   labels:
     app: zabbix-postgres
-spec:
-  serviceName: zabbix-postgres
-  replicas: 1
-  selector:
-    matchLabels:
-      app: zabbix-postgres
+spec:
+  persistentVolumeClaimRetentionPolicy:
+    whenDeleted: Retain
+    whenScaled: Retain
+  podManagementPolicy: OrderedReady
+  serviceName: zabbix-postgres
+  replicas: 1
+  revisionHistoryLimit: 10
+  selector:
+    matchLabels:
+      app: zabbix-postgres
   template:
     metadata:
       labels:
@@ -100,12 +105,16 @@ spec:
       spec:
         accessModes: [ReadWriteOnce]
         volumeMode: Filesystem
-        resources:
-          requests:
-            storage: 10Gi
----
-apiVersion: v1
-kind: Service
+        resources:
+          requests:
+            storage: 10Gi
+  updateStrategy:
+    rollingUpdate:
+      partition: 0
+    type: RollingUpdate
+---
+apiVersion: v1
+kind: Service
 metadata:
   name: zabbix-postgres
   namespace: zabbix