checkpoint 2 part 1 finished, needs to be properly tested

roles/mysql_deploy/templates/mysql-pvc.yml

@@ -0,0 +1,13 @@
+---
+# Persistent Volume Claim for MySQL pod
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: mysql-pv-claim
+spec:
+  accessModes:
+    - ReadWriteOnce
+  storageClassName: local-storage
+  resources:
+    requests:
+      storage: 20Gi