reverted deployments first spec back....

deployments/ghost-blog-deployment.yaml

@@ -1,6 +1,5 @@
 apiVersion: apps/v1
 kind: Deployment
-metadata:
 name: ghost-blog-deployment
 namespace: blog
 spec:

deployments/mysql-deployment.yaml

@@ -6,12 +6,12 @@ metadata:
 spec:
   replicas: 1
   selector:
-    spec:
-      containers:
-      - name: mysql
-        image: mysql:8.0
-        ports:
-        - containerPort: 3306
+    matchLabels:
+      app: mysql
+  template:
+    metadata:
+      labels:
+        app: mysql
     spec:
       containers:
       - name: mysql