MySQL custom config not applied in MageBox (mysql-custom.cnf ignored) #5
Description
Version: MageBox v1.2.6 (2026-01-24)
Platform: macOS arm64 (Apple Silicon)
I ran into an issue with MySQL binary logs growing very large when using MageBox with mysql:8.0.
Root cause: although the docs mention support for ~/.magebox/docker/mysql-custom.cnf
(https://magebox.dev/services/database.html#mysql-configuration), the generated docker-compose.yml for the MySQL service does not mount any custom MySQL config file. As a result, mysql-custom.cnf is never loaded and custom MySQL settings (e.g. binlog control, InnoDB tuning) cannot take effect.
Because MageBox regenerates ~/.magebox/docker/docker-compose.yml on restart, it’s not possible to persistently mount a MySQL config file or disable binlogs.
This makes startup-only MySQL configuration impossible with the current setup.