Service and Pods with support hostname & subdomain

service-with-2-python-flask-test-services.yml

apiVersion: v1
kind: Service
metadata:
  name: default-subdomain
spec:
  selector:
    app: web
  ports:
    - name: "5000"
      port: 5000
      targetPort: 5000
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: flask-api-1
  labels:
    app: web
spec:
  replicas: 2
  selector:
    matchLabels:
      app: web
  template:
    metadata:
      labels:
        app: web
    spec:
      hostname: flask-api-1
      subdomain: default-subdomain
      containers:
        - name: web1
          image: parisnk/flask-test:v1.0.0
          ports:
            - containerPort: 5000
          env:
            - name: SERVICE_NAME
              value: "flask-api-1"
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: flask-api-2
  labels:
    app: web
spec:
  replicas: 2
  selector:
    matchLabels:
      app: web
  template:
    metadata:
      labels:
        app: web
    spec:
      hostname: flask-api-2
      subdomain: default-subdomain
      containers:
        - name: web2
          image: parisnk/flask-test:v1.0.0
          ports:
            - containerPort: 5000
          env:
            - name: SERVICE_NAME
              value: "flask-api-2"