docker run ... -h -h옵션이 무엇인가요

docker run -it --name db002 -h db002 -p 3307:3306 \

-v /db/db002/data:/var/lib/mysql \

-v /db/db002/log:/var/log/mysql \

-v /db/db002/conf:/etc/percona-server.conf.d \

-e MYSQL_ROOT_PASSWORD="root" -d percona:5.7.30