重写nginx Ingress的路径

Posted 2021-03-31

我需要将Ingress指向图像，以便我的Pod完整地获取URL。我有以下配置：

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: solar-demo
  annotations:
    nginx.org/server-snippet: "proxy_ssl_verify off;"
    nginx.ingress.kubernetes.io/rewrite-target: /
spec:
  rules:
  - host: shmukler.example.com
    http:
      paths:
      - path: /city/*
        backend:
          serviceName: solar-demo
          servicePort: 3000
      - path: /solar/*
        backend:
          serviceName: solar-demo
          servicePort: 3001

如果我保留行：nginx.ingress.kubernetes.io/rewrite-target: /，我在Pods内的服务得到重写的路径，所以/city/dublin变成/dublin。

如果我注释掉nginx.ingress.kubernetes.io/rewrite-target: /这行，我只是在客户端获得503错误，而日志中没有任何内容。通过重写，我的服务给了我404，因为没有路线/dublin。

我究竟做错了什么？我怎么才能通过路径并让Pods响应？

$ kubectl describe svc solar-demo
Name:              solar-demo
Namespace:         default
Labels:            <none>
Annotations:       kubectl.kubernetes.io/last-applied-configuration= 
{"apiVersion":"v1","kind":"Service","metadata":{"annotations":{},"name":"solar-demo","namespace":"default"},"spec":{"ports":[{"name":"city","port":3000...
Selector:          app=testapp
Type:              ClusterIP
IP:                10.107.221.76
Port:              city  3000/TCP
TargetPort:        3000/TCP
Endpoints:         172.17.0.3:3000,172.17.0.8:3000
Port:              solar  3001/TCP
TargetPort:        3001/TCP
Endpoints:         172.17.0.3:3001,172.17.0.8:3001
Session Affinity:  None
Events:            <none>

建议？

答案

这应该是一个工作配置：

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: solar-demo
  annotations:
    kubernetes.io/ingress.class: "nginx"
spec:
  rules:
  - host: shmukler.example.com
    http:
      paths:
      - path: /city
        backend:
          serviceName: solar-demo
          servicePort: 3000
      - path: /solar
        backend:
          serviceName: solar-demo
          servicePort: 3001

改变了什么：

• 从路径中删除了*
• 注释中指定的入口
• 删除了重写注释

入口处的path（当使用nginx入口时）就像指定nginx location块一样。 nginx不在位置块中使用*字符。