Access docker container behind HAProxy -> 503

[cwt]

Howdy!

I'm running the current HAProxy plugin along with the LE plugin, SSL offloading, etc. Everything works (nextcloud VMs, Synologys, etc.) except access to docker containers.

I'm trying to access a docker container (Bitwarden_RS) but only receive a 503 from HAProxy when trying to access it via HAProxy (external access). It's IP is definded both as a real server and in the backend settings. I can access it internally by browser with no problems (simply entering the IP of the docker container).

I usually set "host matches" as rules/conditions but this doesn't work.

Are there any special options in rules and conditions to access docker containers?

The container is started with ports 80:80 and 3012:3012 (web sockets enabled). I already tried port 3012 in HAProxy but the result is the same.

Thx and cheers 

[cwt]

*facepalm*

Ok, figured it out. Being lazy I duplicated the settings from an already existing „real server“ and simply forgot to untick the option „SSL“ which was activated     

Errm…

[ckocank]

thank you I'm having the exact same problem