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michaelgardner's avatar
michaelgardner
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Jun 02, 2022

How to rewrite a path to a backend service dropping the prefix and passing the remaining path?

Hello, I am not sure whether my posting is appropriate in this area, so please delete it if there is a violation of posting rules... This must be a common task, but I cannot figure out how to do t...
application delivery
devops
fanout
ingress
NGINX
path
rewrite
security
michaelgardner's avatar
michaelgardner
Icon for Altocumulus rankAltocumulus
Jun 03, 2022

Hello xuwen & JRahm,

Thank you fo your quick responses and help.  After a break, I adjusted the path, as below, and was able to successfully route to httpbin and preserve the path after the prefix.  Hopefully, this will help others... 🙂

---
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: mikie-ingress
  namespace: mikie
  annotations:
    nginx.ingress.kubernetes.io/rewrite-target: /$1
spec:
  ingressClassName: nginx
  rules:
    - host: abczzz.com
      http:
        paths:
          - backend:
              service:
                name: httpbin-service
                port:
                  number: 8999
            path: /httpbin/(.*)
            pathType: Prefix
  • michaelgardner's avatar
    michaelgardner
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    Jun 03, 2022

    In order to compare my issues, I deployed nginx-ingress, which we will be using for our deployment, and the community edition, to two separate Kubernetes clusters.  When I reported success a few minutes ago, it was with the community edition.  However, with nginx-ingress and the same manifests used for the community edition, the rewrites are not succeeding... 404s...  Arggg... 

    I've attached my deployment scripts, which I was documenting for our team.  Could you please take a look at them to see whether you spot any reasons that they wouldn't work, as expected?  I am going to dig back in when I get back into the office in the morning and will report what I find.  I've left the httpbin backend services running, in case you want to play with anything.  No issues with your access, if desired.

    Thank you for your help and support,

    Mike