authelia/docs/configuration/storage/mysql.md

layout	title	parent	grand_parent	nav_order
default	MySQL	Storage backends	Configuration	2

MySQL

storage:
    mysql:
        host: 127.0.0.1
        port: 3306
        database: authelia
        username: authelia
        # This secret can also be set using the env variables AUTHELIA_STORAGE_MYSQL_PASSWORD
        password: mypassword