Kubernetes: GatewayAPI URLRewrite Filter

Apr 11, 2024

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In this example, request to /echo or /echo/ (because of the type: PathPrefix) will be rewritten as / and becomes the request of “web” Service.

apiVersion: gateway.networking.k8s.io/v1
kind: HTTPRoute
metadata:
  name: web
spec:
  parentRefs:
  - name: nginx
  rules:
  - matches:
    - path:
        type: PathPrefix
        value: /echo
    backendRefs:
    - name: web
      kind: Service
      port: 80
    filters:
    - type: URLRewrite
      urlRewrite:
        path:
          type: ReplacePrefixMatch
          replacePrefixMatch: /

YAML
​x
 
apiVersion: gateway.networking.k8s.io/v1
kind: HTTPRoute
metadata:
  name: web
spec:
  parentRefs:
  - name: nginx
  rules:
  - matches:
    - path:
        type: PathPrefix
        value: /echo
    backendRefs:
    - name: web
      kind: Service
      port: 80
    filters:
    - type: URLRewrite
      urlRewrite:
        path:
          type: ReplacePrefixMatch
          replacePrefixMatch: /

In this example, request only to /echo (because of the type: Exact) will be rewritten as / and becomes the request of “web” Service.

apiVersion: gateway.networking.k8s.io/v1
kind: HTTPRoute
metadata:
  name: web
spec:
  parentRefs:
  - name: nginx
  rules:
  - matches:
    - path:
        type: Exact
        value: /echo
    backendRefs:
    - name: web
      kind: Service
      port: 80
    filters:
    - type: URLRewrite
      urlRewrite:
        path:
          type: ReplaceFullPath
          replaceFullPath: /

YAML
 
apiVersion: gateway.networking.k8s.io/v1
kind: HTTPRoute
metadata:
  name: web
spec:
  parentRefs:
  - name: nginx
  rules:
  - matches:
    - path:
        type: Exact
        value: /echo
    backendRefs:
    - name: web
      kind: Service
      port: 80
    filters:
    - type: URLRewrite
      urlRewrite:
        path:
          type: ReplaceFullPath
          replaceFullPath: /

Kubernetes: GatewayAPI URLRewrite Filter

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