Kubernetes中nginx-ingress的重写规则

Question

我正在努力为Kubernetes上的nginx-ingress制定一个重写/重定向规则。

根据文档https://kubernetes.github.io/ingress-nginx/examples/rewrite/，它说可以使用注释"nginx.ingress.kubernetes.io/rewrite-target"，但无法在我的入口上实现。也许我做错了。

例如，nginx-ingress yaml文件的一部分。

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  annotations:
    kubernetes.io/ingress.class: nginx
    example.com/deployment-name: frontend-page
    example.com/ingress-hostnames: www.example.com
    nginx.ingress.kubernetes.io/rewrite-target: /$2
spec:
  rules:
  - host: www.example.com
    http:
      paths:
      - backend:
          serviceName: frontend-page
          servicePort: 8080
        path: /front(/|$)(.*)

也尝试了另一种方法，但没有成功：

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  annotations:
    kubernetes.io/ingress.class: nginx
    example.com/deployment-name: frontend-page
    example.com/ingress-hostnames: www.example.com
    nginx.ingress.kubernetes.io/rewrite-target: /shop
spec:
  rules:
  - host: www.example.com
    http:
      paths:
      - backend:
          serviceName: frontend-page
          servicePort: 8080
        path: /

我想将所有到页面www.example.com/front/checkdomain的流量重定向到www.example.com/checkdomain。我想去掉中间的“正面”路径。

Answer 1

尝试使用更新的API版本，希望您的入口支持networking.k8s.io/v1beta1。

apiVersion: networking.k8s.io/v1beta1
kind: Ingress
metadata:
  annotations:
    kubernetes.io/ingress.class: nginx
    nginx.ingress.kubernetes.io/rewrite-target: /$2
  name: rewrite
  namespace: default
spec:
  rules:
  - host: rewrite.bar.com
    http:
      paths:
      - backend:
          serviceName: http-svc
          servicePort: 80
        path: /something(/|$)(.*)

示例：https://kubernetes.github.io/ingress-nginx/examples/rewrite/#examples

Answer 2

解决方案是

更改自：

nginx.ingress.kubernetes.io/rewrite-target: /$2

至：

nginx.ingress.kubernetes.io/rewrite-target: /$2/

所以yaml看起来是这样的：

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  annotations:
    kubernetes.io/ingress.class: nginx
    example.com/deployment-name: frontend-page
    example.com/ingress-hostnames: www.example.com
    nginx.ingress.kubernetes.io/rewrite-target: /$2/
spec:
  rules:
  - host: www.example.com
    http:
      paths:
      - backend:
          serviceName: frontend-page
          servicePort: 8080
        path: /front(/|$)(.*)