ingress重定向例子

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子路径重定向

所有子路径匹配转发

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apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  annotations:
    nginx.ingress.kubernetes.io/rewrite-target: /$2
  name: whoami
  namespace: default
spec:
  rules:
    - host: k8s-ingress-nbugs.nbugs.com
      http:
        paths:
          - backend:
              serviceName: whoami
              servicePort: 80
            path: /(.*)
            pathType: ImplementationSpecific

或

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apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  annotations:
    nginx.ingress.kubernetes.io/rewrite-target: /$1
  name: whoami
  namespace: default
spec:
  rules:
    - host: k8s-ingress-nbugs.nbugs.com
      http:
        paths:
          - backend:
              serviceName: whoami
              servicePort: 80
            path: /
            pathType: ImplementationSpecific

访问http://k8s-ingress-nbugs.nbugs.com/awdseawdawda/awdawd/awdawd

所有都被重定向到/

image-20211109112035645

自定义路径转发

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    nginx.ingress.kubernetes.io/rewrite-target: /abc/$1
spec:
  rules:
    - host: k8s-ingress-nbugs.nbugs.com
      http:
        paths:
          - backend:
              serviceName: whoami
              servicePort: 80
            path: /
            pathType: ImplementationSpecific

访问http://k8s-ingress-nbugs.nbugs.com/1/2/3

image-20211109122522422

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    nginx.ingress.kubernetes.io/rewrite-target: /abc/$1
spec:
  rules:
    - host: k8s-ingress-nbugs.nbugs.com
      http:
        paths:
          - backend:
              serviceName: whoami
              servicePort: 80
            path: /(.*)
            pathType: ImplementationSpecific

访问http://k8s-ingress-nbugs.nbugs.com/1/2/3

image-20211109122651505

$路径匹配规则

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nginx.ingress.kubernetes.io/rewrite-target: /abc/$1
  http:
    paths:
      - backend:
          serviceName: whoami
          servicePort: 80
        path: /(.*)/(.*)

访问

image-20211109123146463

image-20211109123157360

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nginx.ingress.kubernetes.io/rewrite-target: /api/$2
path: /apiv2(/|$)(.*)

结果：

image-20211109144644112

image-20211109144700521

image-20211109144705928

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nginx.ingress.kubernetes.io/configuration-snippet: rewrite /(.*)/(.*)$ /$2 break;
path: /
或
nginx.ingress.kubernetes.io/rewrite-target: /$2
path: /(.*)/(.*)$

结果: 只保留最后访问的文件名

image-20211109150555745

image-20211109150602777

image-20211109150611341

总结：

path中如果只有一个组

域名重定向

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rewrite /(.*)$ /$1 break;
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  annotations:
    nginx.ingress.kubernetes.io/configuration-snippet: 'rewrite ^/li800/(.*)$ https://xxoo60.xxoo800.com/li800/$1 redirect;'
  name: whoami
  namespace: default
spec:
  rules:
    - host: k8s-ingress-nbugs.nbugs.com
      http:
        paths:
          - backend:
              serviceName: whoami
              servicePort: 80
            path: /
            pathType: ImplementationSpecific

访问域名k8s-ingress-nbugs.nbugs.com/li800/abc

链接被重定向至https://xxoo60.xxoo800.com/li800/abc

参考：

https://blog.51cto.com/weifan/2451983

https://blog.csdn.net/lswzw/article/details/104496837

https://www.cnblogs.com/malukang/p/13534220.html