Add prod overlay for k8s-poc-demo app

deploy/k8s-poc-demo/base/deployment.yaml

@@ -2,24 +2,22 @@ apiVersion: apps/v1
 kind: Deployment
 metadata:
   name: k8s-poc-nginx-deployment
-  labels:
-    app: nginx
 spec:
   selector:
     matchLabels:
-      app: nginx
+      app: k8s-poc-nginx
   replicas: 2
   template:
     metadata:
       labels:
-        app: nginx
+        app: k8s-poc-nginx
     spec:
       containers:
-      - name: nginx
+      - name: k8s-poc-nginx
         image: nginx:latest
-        imagePullPolicy: IfNotPresent
         ports:
         - containerPort: 80
+        imagePullPolicy: IfNotPresent
         resources:
           requests:
             cpu: "100m"

deploy/k8s-poc-demo/overlays/prod/kustomization.yaml

@@ -0,0 +1,5 @@
+resources:
+- ../../base
+patchesStrategicMerge:
+- replicas.yaml
+- resources.yaml

deploy/k8s-poc-demo/overlays/prod/replicas.yaml

@@ -0,0 +1,6 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: k8s-poc-nginx-deployment
+spec:
+  replicas: 1

deploy/k8s-poc-demo/overlays/prod/resources.yaml

@@ -0,0 +1,15 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: k8s-poc-nginx-deployment
+spec:
+  template:
+    spec:
+      containers:
+      - name: k8s-poc-nginx
+        resources:
+#          requests:
+#            cpu: "100m"
+          limits:
+            memory: "256Mi"
+            cpu: "150m"