kubernetes - 如何去除 Kubernetes Traefik ingress 中的路径前缀？

Question

我在 Ubuntu 20.04 上使用 k3s v1.22.7。我希望 /bar/xyz 成为 Pod 的 /xyz。如果没有中间件，我会正确地路由到 pod，有了它，我从 Traefik 得到 404，就好像从 replacePathRegex/stripPrefix 中剥离发生在之前入口路径评估。网上的例子都是这样的...

apiVersion: traefik.containo.us/v1alpha1
kind: Middleware
metadata:
  name: strip-prefix
spec:
  #replacePathRegex:
  #  regex: ^/(?:[^/]+)/(.*)
  #  replacement: /$1
  stripPrefix:
    prefixes:
      - /bar
      - /baz
---
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: foo-ingress
  annotations:
    kubernetes.io/ingress.class: traefik
    traefik.ingress.kubernetes.io/router.middlewares: strip-prefix@kubernetescrd
spec:
  rules:
  - host: example.org
    http:
      paths:
      - path: /bar
        pathType: Prefix
        backend:
          service:
            name: foo-service
            port:
              number: 5001
      - path: /baz
        pathType: Prefix
        backend:
          service:
            name: foo-service
            port:
              number: 5002

Answer 1

看起来中间件需要命名空间前缀，所以要么

apiVersion: traefik.containo.us/v1alpha1
kind: Middleware
metadata:
  name: strip-prefix
  # No namespace defined
spec:
  stripPrefixRegex:
    regex:
    - ^/[^/]+
---
kind: Ingress
metadata:
  annotations:
    traefik.ingress.kubernetes.io/router.middlewares: default-strip-prefix@kubernetescrd

或

apiVersion: traefik.containo.us/v1alpha1
kind: Middleware
metadata:
  name: strip-prefix
  namespace: example # Namespace defined
spec:
  stripPrefixRegex:
    regex:
    - ^/[^/]+
---
kind: Ingress
metadata:
  annotations:
    traefik.ingress.kubernetes.io/router.middlewares: example-strip-prefix@kubernetescrd

应该可以。

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