mysql_cluster: Some changes

mysql_cluster/kustomize/base/mysql_cluster.yaml

@@ -4,24 +4,12 @@ metadata:
   name: db-cluster
 spec:
   secretName: secret
-  mysql:
-    image: mysql:9
-    resources:
-      requests:
-        memory: "512Mi"
-        cpu: "1000m"
-      limits:
-        memory: "2048Mi"
-        cpu: "2000m"
-  tlsUseSelfSigned: true
   instances: 3
   router:
     instances: 1
+  tlsUseSelfSigned: true
   datadirVolumeClaimTemplate:
-  - metadata:
-      name: mysql-data
-    spec:
-      accessModes: [ "ReadWriteOnce" ]
-      resources:
-        requests:
-          storage: 10Gi
+    accessModes: [ "ReadWriteOnce" ]
+    resources:
+      requests:
+        storage: 10Gi