重写入口 kubernetes 上的路径

Question

我有在 kubernetes 集群上运行的 tomcat 后端服务尝试使用带有路径的入口重写 /blob/api/v1/test-backend > /api/v1/test-backend 所以 配置现在正在运行，因此可以访问 xx.somedomain.com/blob/api/v1/test-backend，我想通过重写更改为 xx.somedomain.com/api/v1/test-backend

我的基本入口

apiVersion: networking.k8s.io/v1beta1
kind: Ingress
metadata:
  name: ingress-blob
  namespace: blob-test
  annotations:
    kubernetes.io/ingress.class: nginx
    nginx.ingress.kubernetes.io/ssl-redirect: "true"
    nginx.ingress.kubernetes.io/proxy-body-size: 50m
spec:
  tls:
  - hosts:
    - xx.somedomain.com
    secretName: cert-key
  rules:
  - host: xx.somedomain.com
    http:
      paths:
      - path: /blob/
        backend:
          serviceName: blob-service
          servicePort: 8080
      - path: /
        backend:
          serviceName: web-service
          servicePort: 80

这是用于重写/blob/的yaml

apiVersion: networking.k8s.io/v1beta1
kind: Ingress
metadata:
  name: ingress-blob
  namespace: blob-test
  annotations:
    kubernetes.io/ingress.class: nginx
    nginx.ingress.kubernetes.io/ssl-redirect: "true"
    nginx.ingress.kubernetes.io/proxy-body-size: 50m
    nginx.ingress.kubernetes.io/rewrite-target: /$1
spec:
  tls:
  - hosts:
    - xx.somedomain.com
    secretName: cert-key
  rules:
  - host: xx.somedomain.com
    http:
      paths:
      - path: /blob/api/v1/some-backend
        backend:
          serviceName: blob-service
          servicePort: 8080

当我使用 talend 之类的 api 测试器进行测试时，出现 405 错误

Answer 1

试试这个

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  annotations:
    nginx.ingress.kubernetes.io/rewrite-target: /$2
  name: rewrite
  namespace: default
spec:
  rules:
  - host: rewrite.bar.com
    http:
      paths:
      - backend:
          serviceName: http-svc
          servicePort: 80
        path: /something(/|$)(.*)

例如，上面的入口定义将导致以下重写：

rewrite.bar.com/something rewrites to rewrite.bar.com/
rewrite.bar.com/something/ rewrites to rewrite.bar.com/
rewrite.bar.com/something/new rewrites to rewrite.bar.com/new

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

Answer 2

尝试像这样添加注释 nginx.ingress.kubernetes.io/rewrite-target: "/$1"