配置Ingress

1.编写资源清单

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root@k8s-master01:~/yaml/chapter13# vim ingress-v1beta1-demo.yaml
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: ingress-v1beta1-demo
  annotations:
    kubernetes.io/ingress.class: "nginx"
spec:
  rules:
  - host: www.mylinuxops.com           # 使用虚拟主机配置ingress
    http:
      paths:
      - path:
        backend:
          serviceName: demoapp
          servicePort: 80
#  - host: www.mylinuxops.cn
#    http:
#      paths:
#      - path: /foo                 # 使用路径配置ingress
#        backend:
#          serviceName: foo-svc
#          servicePort: 80
#      - path: /bar
#        backend:
#          serviceName: bar-svc
#          servicePort: 8080
#  tls:
#  - hosts:
#    - www.mylinuxops.com
#    secretName: tls-mylinuxops
#  backend:
#    serviceName: default-backend
#    servicePort: 80

2.应用资源清单

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root@k8s-master01:~/yaml/chapter13# kubectl apply -f ingress-v1beta1-demo.yaml
Warning: extensions/v1beta1 Ingress is deprecated in v1.14+, unavailable in v1.22+; use networking.k8s.io/v1 Ingress

# v1beta1版本将会在k8s v1.22之后废弃。

部署deployment

1.编写deployment

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root@k8s-master01:~/yaml/chapter13# vim deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
  name: deployment-demo
spec:
  replicas: 4
  selector:
    matchLabels:
      app: demoapp
      release: stable
  template:
    metadata:
      labels:
        app: demoapp
        release: stable
    spec:
      containers:
      - name: demoapp
        image: ikubernetes/demoapp:v1.0
        ports:
        - containerPort: 80
          name: http
---
apiVersion: v1
kind: Service
metadata:
  name: demoapp
spec:
  selector:
    app: demoapp
    release: stable
  ports:
  - name: http
    port: 80
    targetPort: 80

2.应用配置清单

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root@k8s-master01:~/yaml/chapter13# kubectl  apply -f deployment.yaml
deployment.apps/deployment-demo created
service/ik8s created

测试访问

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root@k8s-master01:~/yaml/chapter13# curl -H "HOST:www.mylinuxops.com" 172.16.11.83
iKubernetes demoapp v1.0 !! ClientIP: 192.168.131.3, ServerName: deployment-demo-fb544c5d8-d2k7v, ServerIP: 192.168.96.24!
root@k8s-master01:~/yaml/chapter13# curl -H "HOST:www.mylinuxops.com" 172.16.11.83
iKubernetes demoapp v1.0 !! ClientIP: 192.168.131.3, ServerName: deployment-demo-fb544c5d8-h97bv, ServerIP: 192.168.96.23!
root@k8s-master01:~/yaml/chapter13# curl -H "HOST:www.mylinuxops.com" 172.16.11.83
iKubernetes demoapp v1.0 !! ClientIP: 192.168.131.3, ServerName: deployment-demo-fb544c5d8-h97bv, ServerIP: 192.168.96.23!