nginx-rc.yaml

apiVersion: v1

kind: ReplicationController

metadata:

  name: webapp

spec:

  replicas: 2

  template:

    metadata:

      name: webapp

      labels:

        app: webapp

    spec:

      containers:

      - name: webapp

        image: nginx

        ports:

        - containerPort: 80

nginx-ser.yaml

apiVersion: v1
kind: Service
metadata:
  name: webapp
spec:
  ports:
  - port: 8081
    targetPort: 80
  selector:
    app: webapp

nginx-Session.yaml

apiVersion: v1
kind: Service
metadata:
  name: webapp
spec:
  ports:
  - port: 8081
    targetPort: 80
  selector:
    app: webapp
  sessionAffinity: ClientIP

nginx-Headless.yaml

apiVersion: v1
kind: Service
metadata:
  name: webapp
  labels:
    app: webapp
spec:
  ports:
  - port: 8081
  clusterIP: None
  selector:
    app: nginx