Ingress报错404

Nginx-404

proxy_pass详解

upstream k8s_ingress {
    server  NODE-IP:PORT;
}

server {
    listen 80;
    server_name hi.abc.com;
    
    location /hi {
         # 末尾加/则location的/hi不会带过去，否则将为http:// activity.abc.com/admin/hi
        proxy_pass http://activity.abc.com/admin;
        # proxy_pass http://k8s_ingress/admin;   # 另一种方式
        # host不同不设置将404
        proxy_set_header HOST $proxy_host;
    }
}

Ingress-error

• default backbend 404
  请求没到ingress，解决查看ingress controller，确定配置到ingress正常工作

  # 查看ingress的NODE-IP
  kubectl get pod -o wide -n ingress-nginx -o wide
  # 查看ingress的PORT
  kubectl get svc -n ingress-nginx
  

• 404 NOT found
  配置的ingress的yaml文件，检查path配置的路径(location) 以及rewrite

  apiVersion: extensions/v1beta1
  kind: Ingress
  metadata:
    name: activity-admin-ingress-master
    namespace: jiebao-crm-prod
    annotations:
      kubernetes.io/ingress.class: nginx
      nginx.ingress.kubernetes.io/proxy-body-size: 200m
      nginx.ingress.kubernetes.io/configuration-snippet: |
        proxy_set_header zone master;
        # 等价于location后的rewrite
        rewrite ^/admin/(.*) /$1 break;   
  spec:
    rules:
    - host: activity.abc.com
      http:
        paths:
        - path: /admin      # 等价于nginx的location
          backend:
            serviceName: activity-admin-web-master
            servicePort: http
  

• 503 service temploary unavilable

  检查配置ingress的yaml的serviceName是否是存在

   # kubectl get pods |grep activity-admin-web-master