cs.yaml

apiVersion: v1
kind: List
items:

# HTTP Server Pod
- apiVersion: v1
  kind: Pod
  metadata:
    name: http-server
    labels:
      app: http-server
  spec:
    containers:
    - name: server
      image: httpd
      ports:
      - containerPort: 80
      volumeMounts:
      - name: http-server-volume
        mountPath: /usr/local/apache2/htdocs/
    volumes:
    - name: http-server-volume
      emptyDir: {}
    initContainers:
    - name: init-server
      image: busybox
      command: ['sh', '-c', 'echo "hi" > /http-server-volume/emptyfile.txt']
      volumeMounts:
      - name: http-server-volume
        mountPath: /http-server-volume

# HTTP Server Service
- apiVersion: v1
  kind: Service
  metadata:
    name: http-server
  spec:
    selector:
      app: http-server
    ports:
      - protocol: TCP
        port: 80
        targetPort: 80

# HTTP Client Pod
- apiVersion: v1
  kind: Pod
  metadata:
    name: http-client
    labels:
      app: http-client
  spec:
    containers:
    - name: client
      image: curlimages/curl
      command: ["sh", "-c", "while true; do curl http://http-server/emptyfile.txt -o /dev/null; sleep 5; done"]