Hi, I am new here; first tried the official MariaDB and Nextcloud, then, as many tutorials exist, i tried it with linuxserver/[APP].
I find it super weird, as no one seems to be having the problem that connecting to the database from the nextcloud initial setup is impossible no matter wich images i use, official or linuxserver.
If “advanced” to:
Error while trying to create admin user: Failed to connect to the database: An exception occurred in the driver: SQLSTATE[HY000]  Host is unreachable
After having had “no route to host” before.
I can see in 2021, someone had a similar issue, and a response with someone else that had the same issue, but no-one seemed to care about those two back then ( thread
“Linuxserver/mariadb could not connect to mariadb from host”) … let’s see