Docker compose can't reach database app

[Rechdan]

As the title implies, my compose ap can't reach the database app (both are in the same env).

[2024-Jan-12 14:27:31.387276] Starting deployment of rechdan/---:dev.
[2024-Jan-12 14:27:32.496133] ----------------------------------------
[2024-Jan-12 14:27:32.497848] Importing Rechdan/---:dev (commit sha HEAD) to /artifacts/jwok8ko.
[2024-Jan-12 14:27:34.170282] Pulling & building required images.
[2024-Jan-12 14:27:34.498707] Removing old containers.
[2024-Jan-12 14:27:41.251592] Oops something is not okay, are you okay? 😢
[2024-Jan-12 14:27:41.263410] Container migration-g0c88w4-142733994812 Creating
Container migration-g0c88w4-142733994812 Created
Container frontend-g0c88w4-142733994946 Creating
Container frontend-g0c88w4-142733994946 Created
Container migration-g0c88w4-142733994812 Starting
Container migration-g0c88w4-142733994812 Started
Container migration-g0c88w4-142733994812 Waiting
Container migration-g0c88w4-142733994812 service "migration" didnt complete successfully: exit 1
[2024-Jan-12 14:27:41.265748] migration: unrecognized service

yarn run v1.22.19
$ prisma migrate deploy
Prisma schema loaded from prisma/schema.prisma
Datasource "db": MySQL database "---" at "m0cwoss:3306"

info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.
Error: P1001: Can't reach database server at `m0cwoss`:`3306`

Please make sure your database server is running at `m0cwoss`:`3306`.
error Command failed with exit code 1.

[shintaii]

The compose dockers run in their own network, so there is no connection to other apps. If you want that:
more info here