Copy replicaset example yamls to hack/testdata directory.

hack/testdata/frontend-replicaset.yaml

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+apiVersion: extensions/v1beta1
+kind: ReplicaSet
+metadata:
+  name: frontend
+  # these labels can be applied automatically
+  # from the labels in the pod template if not set
+  # labels:
+    # app: guestbook
+    # tier: frontend
+spec:
+  # this replicas value is default
+  # modify it according to your case
+  replicas: 3
+  # selector can be applied automatically
+  # from the labels in the pod template if not set
+  # selector:
+  #   matchLabels:
+  #     app: guestbook
+  #     tier: frontend
+  template:
+    metadata:
+      labels:
+        app: guestbook
+        tier: frontend
+    spec:
+      containers:
+      - name: php-redis
+        image: gcr.io/google_samples/gb-frontend:v3
+        resources:
+          requests:
+            cpu: 100m
+            memory: 100Mi
+        env:
+        - name: GET_HOSTS_FROM
+          value: dns
+          # If your cluster config does not include a dns service, then to
+          # instead access environment variables to find service host
+          # info, comment out the 'value: dns' line above, and uncomment the
+          # line below.
+          # value: env
+        ports:
+        - containerPort: 80

hack/testdata/redis-slave-replicaset.yaml

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+apiVersion: extensions/v1beta1
+kind: ReplicaSet
+metadata:
+  name: redis-slave
+  # these labels can be applied automatically
+  # from the labels in the pod template if not set
+  # labels:
+  #   app: redis
+  #   role: slave
+  #   tier: backend
+spec:
+  # this replicas value is default
+  # modify it according to your case
+  replicas: 2
+  # selector can be applied automatically
+  # from the labels in the pod template if not set
+  # selector:
+  #   app: guestbook
+  #   role: slave
+  #   tier: backend
+  template:
+    metadata:
+      labels:
+        app: redis
+        role: slave
+        tier: backend
+    spec:
+      containers:
+      - name: slave
+        image: gcr.io/google_samples/gb-redisslave:v1
+        resources:
+          requests:
+            cpu: 100m
+            memory: 100Mi
+        env:
+        - name: GET_HOSTS_FROM
+          value: dns
+          # If your cluster config does not include a dns service, then to
+          # instead access an environment variable to find the master
+          # service's host, comment out the 'value: dns' line above, and
+          # uncomment the line below.
+          # value: env
+        ports:
+        - containerPort: 6379