Although I have specified the MySQL port in the environment variables, I still observe in the logs that it tries to access the MySQL server through the default MySQL port.
ENV
SEAFILE_MYSQL_DB_PORT=13306
DB_PORT=13306
notification-server.log
[2025-03-14 04:39:16] [ERROR] Failed to connected to mysql: dial tcp 172.22.1.181:3306: connect: connection timed out