Use docker pull ulrichschreiner/zope2 to get the latest version from the dockerhub. You also can use the tags as image tags.
Start the container without a --user. Instead you must mount the /zope
volume. The container will create a user which will write with the correct
uid and gid. Do not start the container without a hostmounted /zope
directory.
Not supported. I use this container for a legacy project and it is not planned to support it more than needed.