nginx ingress部署

安装
1.master 节点
wget  https://github.com/kubernetes/ingress-nginx/blob/nginx-0.20.0/deploy/mandatory.yaml
sed -i 's#k8s.gcr.io/defaultbackend-amd64#registry.cn-qingdao.aliyuncs.com/kubernetes_xingej/defaultbackend-amd64#g' mandatory.yaml
sed -i 's#quay.io/kubernetes-ingress-controller/nginx-ingress-controller#registry.cn-qingdao.aliyuncs.com/kubernetes_xingej/nginx-ingress-controller#g' mandatory.yaml 
修改： deployment 字段   增加副本数： replicas:3      修改host 模式以及dns策略：   hostNetwork: true  dnsPolicy: ClusterFirst 
replicas: 3replicas: 3
spec:
 hostNetwork: true
 dnsPolicy: ClusterFirst
spec:
 hostNetwork: true
     dnsPolicy: ClusterFirst

2.下载镜像 （node节点）
docker pull registry.cn-qingdao.aliyuncs.com/kubernetes_xingej/defaultbackend-amd64:1.5
docker pull registry.cn-qingdao.aliyuncs.com/kubernetes_xingej/nginx-ingress-controller:0.20.0 

3.master 节点
kubectl create -f mandatory.yaml   生成ingress 与ingress nginx contorller pod  

4.查看 控制器
kubectl get deployment  -n ingress-nginx

5.查看pod 
kubectl get pod  -n ingress-nginx -o wide

6.node节点查看端口
 netstat -ntpl  |grep 80 #已经监听

7.master 节点增加nginx ingress 配置：
# cat nginx-ingress.yaml
apiVersion: extensions/v1beta1
kind: Ingress
metadata: 
  name: ssxz-ingress-nginx
  annotations:
    kubernetes.io/ingress.class: "nginx"                      #定义为nginx ingress类型   
    ingress.kubernetes.io/ssl-redirect: "False"
spec:
  rules:
  - host: p2vtest.178.com                                     #域名
    http:
      paths: 
      - path: 
        backend:
          serviceName: ssxz-service-nginx                     #对应后端服务service 名称   
          servicePort: http

https 配置实例：
创建 secret 
kubectl create secret tls  tls-ssxz-secret --key  178.key --cert  178.pem 

ingress nginx 配置实例：
apiVersion: extensions/v1beta1
kind: Ingress
metadata: 
  name: ssxz-ingress-nginx
  annotations:
    kubernetes.io/ingress.class: "nginx"
    ingress.kubernetes.io/ssl-redirect: "False"
spec:
  tls:
    - hosts: 
      - p2vtest.178.com
      secretName: tls-ssxz-secret
  rules:
  - host: p2vtest.178.com
    http:
      paths: 
      - path: 
        backend:
          serviceName: ssxz-service-nginx
          servicePort: http