I am trying to use the path based routing mechanism provided by Traefik ingress controller in Kubernetes but I have some issues with the url rewriting.
My [UPDATED] configuration is as follow
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
annotations:
kubernetes.io/ingress.class: traefik
traefik.ingress.kubernetes.io/auth-type: "basic"
traefik.ingress.kubernetes.io/auth-tls-insecure: "true"
traefik.ingress.kubernetes.io/frontend-entry-points: "http,https"
traefik.ingress.kubernetes.io/app-root: "/"
traefik.ingress.kubernetes.io/rule-type: "PathPrefixStrip"
traefik.ingress.kubernetes.io/rewrite-target: "/"
name: webapp-ingress
namespace: my-company
spec:
rules:
- host: local-ubuntu
- http:
paths:
- path: /
backend:
serviceName: webapp
servicePort: 80
- path: /db
backend:
serviceName: db-manager
servicePort: 8081
The traffic is routed to the right services but the url is still prefixed with /db when I look at the log for the db-manager (kubernetes) service. What I would have expected with the PathPrefixStrip is that the traffic will be routed without the /db prefix to the container running the db-manager micro-service which is listening on / (http://db-manager:8081) on the backend side.
Am I missing something ? Is it supported by traefik or only nginx ? Thank you by advance for your feedback.
[EDIT]
To be more specific I observe the following with the current annotations discussed below
URL: http://local-ubuntu/db [OK] -> 200
Then other resources are loading but are pointing on the wrong base url
Example:
Resource URL is : http://local-ubuntu/public/css/bootstrap.min.css
But this should be : http://local-ubuntu/db/public/css/bootstrap.min.css (which works when I've tried manually)
I am not sure what I am missing here in the current configuration.
Regarding the static contents not being served, the documentation states the following:
Use a *Strip matcher if your backend listens on the root path (/) but should be routeable on a specific prefix. For instance, PathPrefixStrip: /products would match /products but also /products/shoes and /products/shirts. Since the path is stripped prior to forwarding, your backend is expected to listen on /. If your backend is serving assets (e.g., images or Javascript files), chances are it must return properly constructed relative URLs. Continuing on the example, the backend should return /products/shoes/image.png (and not /images.png which Traefik would likely not be able to associate with the same backend). The X-Forwarded-Prefix header (available since Traefik 1.3) can be queried to build such URLs dynamically.