Kubernetes Ingress 后端子路径

Question

是否可以以任何方式将主机路径重定向到后端的子路径？类似于卷的子路径的工作方式。

入口看起来像这样：

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: jupyter-notebook-ingress
  annotations:
    kubernetes.io/ingress.class: nginx
spec:
  rules:
    - host: jptrntbk.MYDOMAIN.com
      http:
        paths:
          - path: /
            backend:
              serviceName: jupyter-notebook-service
              servicePort: 8888
              subPath: /lab

导航到jptrntbk.MYDOMAIN.com将重定向到/lab后端，并且所有其他父路径不可用。

Answer 1

使用 app-root 注释创建 Ingress 规则：

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  annotations:
    nginx.ingress.kubernetes.io/app-root: /app1
  name: approot
  namespace: default
spec:
  rules:
  - host: approot.bar.com
    http:
      paths:
      - backend:
          serviceName: http-svc
          servicePort: 80
        path: /

检查重写是否有效

$ curl -I -k http://approot.bar.com/
HTTP/1.1 302 Moved Temporarily
Server: nginx/1.11.10
Date: Mon, 13 Mar 2017 14:57:15 GMT
Content-Type: text/html
Content-Length: 162
Location: http://approot.bar.com/app1
Connection: keep-alive

或者您可以使用重写注释创建 Ingress 规则：

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

在此入口定义中，捕获的任何字符都(.*)将分配给占位符$2，然后将其用作注释中的参数rewrite-target。

例如，上面的入口定义将导致以下重写：- rewrite.bar.com/somethingrewrites to rewrite.bar.com/- rewrite.bar.com/something/rewrites to rewrite.bar.com/- rewrite.bar.com/something/newrewrites torewrite.bar.com/new

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