vfailed: Can't connect to MySQL server on '127.0.0.1' (111) at /opt/otrs/Kernel/System/DB.pm line 205. otrs_1 | ERROR: OTRS-otrs.Daemon.pl - Daemon Kernel::System::Daemon::DaemonModules::SystemConfigurationSyncManager-10 Perl: 5.16.3 OS: linux Time: Wed Feb 14 12:03:53 2024

[perlasaber]

[Kapuzinaa]

Hey, I'm having the same problem, it is caused by trying to access the mariadb container with localhost, while it has a different ip/hostname. Have you found a solution yet?

[McTom234]

Same issue for me.

I tried to connect from inside the container manually, and it worked as expected. So one option is to "guess" the ip address of the mariadb container in the docker network, but that's a workaround and no solution.