Passing path suffix to service

Traefik Traefik v2
1

I'm trying to figure out how to pass the end of a path onto the selected services but I can't figure out how to craft the rule. My services are running on ECS but I don't think that matters really.

Let's say I have two services running but each service actually serves two endpoints (e.g. /dashboard and /admin). I want to have traffic routed something like as follows:

  • example.com/app1/dashboard --> service1:8080/dashboard
  • example.com/app1/admin --> service1:8080/admin
  • example.com/app2/dashboard --> service2:8080/dashboard
  • example.com/app2/admin --> service2:8080/admin

So I'd like to capture any request to example.com/app1/{$PATH_SUFFIX} and then point that to service1:8080/{$PATH_SUFFIX}. I've tried using PathPrefix but that just directs everything matching to service1:8080. I can't figure out how to capture and pass on the needed portion of the path to the actual service.

I suspect the solution is either using a redirect somehow or the middleware tools, but I've struggled to find good examples of this particular scenario. Thanks!

2

Hello @sterlinm

The way you have described it you will want to use the stripPrefix middleware to remove /app1 and /app2 on those routers.

traefik.http.middlewares.stripapp1or2.stripPrefix.prefixes=/app1,/app2
traefik.http.routers.yourrouter.middlewares=stripapp1or2

If you were doing app1,app2,....,appN then the stripPrefixRegex would be the one to use.

1 Like
3

Great thanks! What would my rule by in that context?

traefik.http.routers.yourrouter.rule=PathPrefix(`/app1`)

Or something like that? Thanks for the quick response!

4

That looks fine. If you are using more than one domain you might want to combine that with a Host(``) rule too.

5

Okay great. Honestly, I'm getting stuck with 404s even without trying to get the part with the suffix working. I've got a service I can go to directly (e.g. HTTP://xx.yy.zz.aa:8080) and I've got a service for it in my dashboard with a rule that looks like Path(/service) but I can't seem to access it through the machine running traefik, whether or not I include a Host(``) rule.

I'll keep playing around with it but I think I'm misunderstanding something fundamental about Host and Path rules. Thanks again for your help.

6

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