nginx service

---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-deployment
  labels:
    app: nginx
spec:
  replicas: 2
  selector:
    matchLabels:
      app: nginx
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
      - name: nginx
        image: nginx:1.15
        ports:
        - containerPort: 80
        lifecycle:
          postStart:
            exec:
              command: [
                "sh", "-c",
                "echo `hostname` > /usr/share/nginx/html/index.html",
              ]
          preStop:
            exec:
              command: [
                "sh", "-c",
                # Introduce a delay to the shutdown sequence to wait for the
                # pod eviction event to propagate. Then, gracefully shutdown
                # nginx.
                "sleep 5 && /usr/sbin/nginx -s quit",
              ]
---
apiVersion: policy/v1beta1
kind: PodDisruptionBudget
metadata:
  name: nginx-pdb
spec:
  minAvailable: 1
  selector:
    matchLabels:
      app: nginx
---
apiVersion: v1
kind: Service
metadata:
  name: nginx-service
spec:
  selector:
    app: nginx
  type: LoadBalancer
  ports:
  - protocol: TCP
    port: 80
    targetPort: 80