Где настроен '- character-set-server = utf8'?

Question

docker run -d -p 4306:3306 \
-e MYSQL_USER="admin" \
-e MYSQL_PASSWORD="admin123" \
-e MYSQL_ROOT_PASSWORD="admin123" \
--name mysql \
ae6b78bedf88 \
--character-set-server=utf8 \
--collation-server=utf8_general_ci \
--default-authentication-plugin=mysql_native_password \

Где сконфигурирован '- character-set-server = utf8'?