mysql - Why is MariaDB data persistent in my Docker container? I don't have any volumes -

i have docker container mariadb installed. not using volumes.

[vagrant@devops ~]$ sudo docker volume ls driver              volume name [vagrant@devops ~]$  

now strange happening. when sudo docker stop , sudo docker start mariadb data still there. expected data lost.

btw when edit file example /etc/hosts see expected behavior. changes file lost after restart.

how possible mariadb data persistent without volumes? shouldn't happen right?

docker stop not remove container, neither docker start create container.

docker run create new container image.

docker start starts container exist has been stopped before ( call pause/resume if ). start/stop no volumes required keep state persistent.

if though docker stop <name> && docker rm <name> , docker start <name> , error, container no longer exist - need docker run <args> youimage