Kubernetes 入口规则：如何同时使用通配符和特定子域

Question

我希望 Ingress 将特定子域重定向到一个后端，并将所有其他子域重定向到另一个后端。基本上，我想定义如下规则：

If subdomain is foo.bar.com then go to s1, for all other subdomains go to s2

当我在 Ingress 规范中如下所示定义规则时，我在部署时遇到此异常：

Error: UPGRADE FAILED: cannot re-use a name that is still in use

当我将 *.bar.com 更改为 demo.bar.com 时，它起作用了。

这是我的 Ingress 资源规范：

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: test
spec:
  rules:
  - host: foo.bar.com
    http:
      paths:
      - backend:
          serviceName: s1
          servicePort: 80
  - host: *.bar.com
    http:
      paths:
      - backend:
          serviceName: s2
          servicePort: 80

有人知道是否可行吗？

Answer 1

我很确定目前在查看问题 41881, but I could be missing something in the most recent version of Kubernetes—we're about to release 1.12 时这是不可能的。

Answer 2

已经提出了支持入口规则中的通配符域的 PR。参考下面link

https://github.com/containous/traefik/issues/3884

你能试试 Traefik v1.7 看看是否启用了通配符支持。

Answer 3

您可以使用默认后端 -

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: test
spec:
  - backend:
      serviceName: s2
      servicePort: 80
  rules:
  - host: foo.bar.com
    http:
      paths:
      - backend:
          serviceName: s1
          servicePort: 80

Answer 4

现在可以在 Kubernetes:

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  annotations:
    ingress.kubernetes.io/ssl-redirect: "false"
    kubernetes.io/ingress.class: nginx
    kubernetes.io/ingress.global-static-ip-name: web-static-ip
    nginx.ingress.kubernetes.io/rewrite-target: /
    nginx.ingress.kubernetes.io/server-alias: www.foo.bar
    nginx.ingress.kubernetes.io/use-regex: "true"
  name: foo-bar-ingress
  namespace: test
spec:
  rules:
  - host: 'foo.bar.com'
    http:
      paths:
      - backend:
          serviceName: specific-service
          servicePort: 8080
        path: /(.*)
        pathType: ImplementationSpecific
  - host: '*.bar.com'
    http:
      paths:
      - backend:
          serviceName: general-service
          servicePort: 80
        path: /(.*)
        pathType: ImplementationSpecific

Kubernetes 入口规则：如何同时使用通配符和特定子域

Kubernetes ingress rules: How to use wildcard and specific subdomain together

kubernetes

traefik

kubernetes-ingress

traefik-ingress