k8s网络-ingress

一、方案：以daemonSet方式部署ingress-nginx-controller在k8s各节点上，并基于主机网络。

二、部署

参考：

https://kubernetes.github.io/ingress-nginx/deploy/

https://github.com/kubernetes/ingress-nginx/tree/main

ingress-nginx版本对比K8S版本

 1、下载部署文件

wget https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v1.3.1/deploy/static/provider/cloud/deploy.yaml

2、修改部署文件

注释externalTrafficPolicy: Local

 Deployment修改为DaemonSet，添加hostNetwork: true

 3、执行部署文件

kubectl apply -f deploy.yaml

 三、验证

1、创建nginx deployment和service

nginx.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-deployment
spec:
  selector:
    matchLabels:
      app: nginx
  replicas: 1
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
      - name: nginx
        image: nginx:1.14.2
        ports:
        - containerPort: 80          
---
apiVersion: v1
kind: Service
metadata:
  name: nginx-svc  
  labels:
    app: nginx-svc   
spec:
  type: ClusterIP  
  selector:
    app: nginx
  ports:
  - port: 80
    targetPort: 80

kubectl apply -f nginx.yaml

2、创建nginx ingress

ingress-nginx.yaml

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: nginx-ingress
spec:
  ingressClassName: nginx
  rules:
  - host: "test.nginx.com"
    http:
      paths:
      - path: /
        pathType: Prefix
        backend:
          service:
            name: nginx-svc
            port:
              number: 80

kubectl apply -f ingress-nginx.yaml

3、本机添加hosts

192.168.152.10 test.nginx.com

4、浏览器访问test.nginx.com