Ubuntu container and changes

Hi,

I’m a docker noob and wanted to know how to do the following.

I want to run a simple ubuntu container but I want my changes to be persistent. I understand that I need to map a volume to keep my home directory, so I map /home/me to /host/storage/vm/home/me but what about the changes I make to the guest ubuntu. Do I need to also map /etc/ ?

Thanks