Removing part of the URI

Help!
1

Hi All,

I would like to request help with the configuration of HAProxy. I am looking to offer a longer URL external and proxy it to internal services that only reference the last part.

I have a config like this (abbreviated to be easier to read):

frontend EXTERNAL
        ...
        acl redirect_to_service1 path_beg -i /service1/foo/APICALL
        use_backend INTERNAL-SERVICE1 if redirect_to_service1 

        acl redirect_to_service2 path_beg -i /service2/foo/APICALL
        use_backend INTERNAL-SERVICE2 if redirect_to_service2

backend INTERNAL-SERVICE1
        ...
        server NAME 10.0.0.1:1234 check
        http-request set-uri "%[path,regsub(/service1/foo/(.*),/\1)]" # was set-path
        
backend INTERNAL-SERVICE2
        ...
        server NAME 10.0.0.1:1235 check
        http-request set-uri "%[path,regsub(/service2/foo/(.*),/\1)]" # was set-path

Is anyone able to offer guidance or a solution on removing the /service2/foo or /service1/foo from the request sent to the backend only? The client will still request on those API.

Thanks in advance,
Matt

2

I think this should be:

http-request set-path %[path,regsub(/service1/foo/,/)]
1 Like
3

there my be an email arriving saying I’d tried it and it didn’t work. After sending I thought I’d double check and I was wrong, that has worked a treat thanks!

Matt

4

Hi Lukastribus,

You wouldn’t happen to know if the second part (foo in the example above) could be parsed out and added as a HTTP header?

Thanks,
Matt

5

Try something like this, before rewriting the path:

http-request set-header x-path "%[path,regsub(/[^/]+/,/)]"