Much of the docker stuff is coming together, but it has been slow. So far I have learned how to get state saved in a VM! It is easy actually and documented, but you have to watch out for a few details.
So you use -v like something like this:
sudo docker run -d \
-p 3306:3306 \
-e MYSQL_PASS="password" \
-e MYSQL_USER="root" \
-v /var/apps/mysql/1:/var/lib/mysql \
--name db \
mysql:latest
But, the things to watch out for is what you share. It is advised to use this directory as a read-only from the host perspective. This is because you can get into some weird OS lock magic.
The other gotcha is that don’t share a directory that is needed for configuration or binaries. I think eariler I was doing that and it was deleting my directory in the container for some reason.
This makes me think, if you have a directory that will be RW for a container and Read Only for host, then go ahead and use it. Dont share out bin directories because the container will freak out and stop.