TT-RSS - option to link existing database container

Is it possible to be able to link a mysql docker container to the TT-RSS container? I tried adding --link mysql:mysql to the docker command, but it doesn’t seem to see the mysql server.

Thanks

link is deprecated. If you just want to be able to connect from container to container, you can create a new user defined bridge network via docker network create <networkname> and define that bridge in both the tt-rss and mariadb containers as --net <networkname> and then from the tt-rss container, you can reach mariadb by using the container name mariadb as the url and 3306 as the port.