Error 400 - Untrusted host with TRUSTED_HOSTS and TRUSTED_PROXIES

[cdebackere]

I made a docker compose install.
All work fine locally by going to the LAN_IP:8008 on the LAN

However, we also configured a frontend nginx reverse proxy (in another docker container) that handles all incomming http/https calls on a named basis. For the kimai service this is lets say kimai.mydom.com
The forwarding and certificate works fine when hhtp(s)-ing to kimai.mydom.com
I get redirected correctly http->https
I then get redirected to kimai.mydom.com/nl/homepage

And then I get an Error 400 in the browser. In the logs I see:

172.21.0.5 - 04/Oct/2022:17:00:28 +0200 "GET /index.php" 400
NOTICE: PHP message: [2022-10-04 15:00:28] request.ERROR: Uncaught PHP Exception Symfony\Component\HttpKernel\Exception\BadRequestHttpException: "Untrusted Host "kimai.mydom.com"." at /opt/kimai/vendor/symfony/http-kernel/HttpKernel.php line 84 {"exception":"[object] (Symfony\Component\HttpKernel\Exception\BadRequestHttpException(code: 0): Untrusted Host "kimai.mydom.com". at /opt/kimai/vendor/symfony/http-kernel/HttpKernel.php:84, Symfony\Component\HttpFoundation\Exception\SuspiciousOperationException(code: 0): Untrusted Host "kimai.mydom.com". at /opt/kimai/vendor/symfony/http-foundation/Request.php:1197)"} []

In the kimai docker compose config file I added kimai.mydom.com as well as the LAN_IP of the 'frontend reverse proxy' to the TRUSTED_HOSTS and eventually tried to add them as well to the TRUSTED_PROXIES of the nginx . I restarted the compose several times.

Any hint?

THx,
C.

[cdebackere]

Forget I asked .. found the solution
I guess I don't know docker compose well enough.
I just did a 'down' and 'up' instead of 'restart'... and that seems to make a difference. I have the feeling a 'restart' is not reading the docker compose file again .. so you can change the compose and restart all you want... but it's not untill you 'down' the container/compose it hase any effect.

C.