K8S Istio / Nginx

# 1. nginx deployment
apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-deployment
  labels:
    app: nginx
spec:
  replicas: 1
  selector:
    matchLabels:
      app: nginx
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
      - name: nginx
        image: nginx:latest
        ports:
        - containerPort: 80
---
# 2. nginx service
apiVersion: v1
kind: Service
metadata:
  name: nginx-service
spec:
  selector:
    app: nginx
  ports:
  - port: 80
    targetPort: 80
---
# 3. gateway
apiVersion: networking.istio.io/v1alpha3
kind: Gateway
metadata:
  name: nginx-gateway
spec:
  selector:
    istio: ingressgateway
  servers:
  - port:
      number: 80
      name: http
      protocol: HTTP
    hosts:
    - "www.nginx.com"
---
# 4. virtual service
apiVersion: networking.istio.io/v1alpha3
kind: VirtualService
metadata:
  name: nginx-virtualservice
spec:
  hosts:
  - "www.nginx.com"
  gateways:
  - nginx-gateway
  http:
  - match:
    - uri:
        prefix: /
    route:
    - destination:
        host: nginx-service
        port:
          number: 80