testapp-deployment-sameport.yaml

apiVersion: apps/v1beta1
kind: Deployment
metadata:
  name: optik-testapp
  namespace: optik-ae
spec:
  replicas: 1
  selector:
    matchLabels:
      app: optik-testapp
  template:
    metadata:
      labels:
        app: optik-testapp
    spec:
      containers:
      - name: optik-testapp1
        image: someimage:v1
        ports:
        - containerPort: 8080
          name: http-port
        imagePullPolicy: IfNotPresent
      - name: optik-testapp2
        image: anotherimage:v1
        ports:
        - containerPort: 8080
          name: http-port
        imagePullPolicy: IfNotPresent

testapp-deployment.yaml

apiVersion: apps/v1beta1
kind: Deployment
metadata:
  name: optik-testapp
  namespace: optik-ae
spec:
  replicas: 1
  selector:
    matchLabels:
      app: optik-testapp
  template:
    metadata:
      labels:
        app: optik-testapp
    spec:
      containers:
      - name: optik-testapp1
        image: someimage:v1
        ports:
        - containerPort: 8080
          name: http-port
        imagePullPolicy: IfNotPresent
      - name: optik-testapp2
        image: anotherimage:v1
        ports:
        - containerPort: 8081
          name: http-port
        imagePullPolicy: IfNotPresent

testapp-service.yaml

apiVersion: v1
kind: Service
metadata:
  labels:
    name: optik-testapp
  name: optik-testapp
  namespace: optik-ae
spec:
  ports:
    - port: 8484
      name: http-port
      targetPort: 8081
    - port: 8485
      name: http-port2
      targetPort: 8080
  selector:
    app: optik-testapp