k8s

_init.sh

helm install first-release nginx-stable/nginx-ingress -n nginx-ingres
kubectl create ns test1
kubectl apply -f deployment.yaml service.yml ingress.yml

deployment.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: test1
  namespace: test1
spec:
  selector:
    matchLabels:
      app: test1
  template:
    metadata:
      labels:
        app: test1
    spec:
      containers:
      - name: test1
        image: nginx:latest
        imagePullPolicy: Always
        ports:
          - containerPort: 80
        lifecycle:
          postStart:
            exec:
              command: ["/bin/bash", "-c", "echo 'myhost.com' > /usr/share/nginx/html/index.html"]

ingress.yml

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: test1-ingress
  annotations:
    nginx.ingress.kubernetes.io/rewrite-target: /
spec:
  rules:
    - host: myhost.com # add myhost.com to /etc/hosts
      http:
        paths:
          - path: /
            pathType: Prefix
            backend:
              service:
                name: test1-service
                port:
                  number: 80

service.yml

apiVersion: v1
kind: Service
metadata:
  name: test1-service
  namespace: test1
  labels:
    app: test1
spec:
  type: ClusterIP
  ports:
  - port: 80
    targetPort: 80
    name: http
  selector:
    app: test1