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rewrites path on ingress kubernetes – Nginx

i have tomcat backend service running on kubernetes cluster try to rewrite using ingress with path /blob/api/v1/test-backend > /api/v1/test-backend so
the configuration now is running so can hit to xx.somedomain.com/blob/api/v1/test-backend and i want change to xx.somedomain.com/api/v1/test-backend with rewrites

my basic ingress

apiVersion: networking.k8s.io/v1beta1
kind: Ingress
metadata:
  name: ingress-blob
  namespace: blob-test
  annotations:
    kubernetes.io/ingress.class: nginx
    nginx.ingress.kubernetes.io/ssl-redirect: "true"
    nginx.ingress.kubernetes.io/proxy-body-size: 50m
spec:
  tls:
  - hosts:
    - xx.somedomain.com
    secretName: cert-key
  rules:
  - host: xx.somedomain.com
    http:
      paths:
      - path: /blob/
        backend:
          serviceName: blob-service
          servicePort: 8080
      - path: /
        backend:
          serviceName: web-service
          servicePort: 80

and this is yaml for rewrite /blob/

apiVersion: networking.k8s.io/v1beta1
kind: Ingress
metadata:
  name: ingress-blob
  namespace: blob-test
  annotations:
    kubernetes.io/ingress.class: nginx
    nginx.ingress.kubernetes.io/ssl-redirect: "true"
    nginx.ingress.kubernetes.io/proxy-body-size: 50m
    nginx.ingress.kubernetes.io/rewrite-target: /$1
spec:
  tls:
  - hosts:
    - xx.somedomain.com
    secretName: cert-key
  rules:
  - host: xx.somedomain.com
    http:
      paths:
      - path: /blob/api/v1/some-backend
        backend:
          serviceName: blob-service
          servicePort: 8080

when i test with api tester like talend is got 405 error

Tags:

2

Answers


  1. 0

    Try adding annotation like this
    nginx.ingress.kubernetes.io/rewrite-target: "/$1"

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  2. 0

    Try this

    apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  annotations:
    nginx.ingress.kubernetes.io/rewrite-target: /$2
  name: rewrite
  namespace: default
spec:
  rules:
  - host: rewrite.bar.com
    http:
      paths:
      - backend:
          serviceName: http-svc
          servicePort: 80
        path: /something(/|$)(.*)

    For example, the ingress definition above will result in the following rewrites:

    rewrite.bar.com/something rewrites to rewrite.bar.com/
rewrite.bar.com/something/ rewrites to rewrite.bar.com/
rewrite.bar.com/something/new rewrites to rewrite.bar.com/new

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

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