I noticed that the current (Version 1.12.1-beta24 (build: 11525) Docker for Mac has a registry container that runs across restart/reboot. This appears to have started 3 weeks ago (per the container CREATED info).
I did a Google search, searched the Docker Forum and could not find any questions related to this, and tried searching the Mac OS X file system to see if I can identify how this is managed and can’t seem to find anything.
$ docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES ee66e82e7076 registry:2 "/entrypoint.sh /etc/" 3 weeks ago Up 3 minutes 0.0.0.0:5000->5000/tcp registry
Does anyone know (a) how this works and (b) how can it be extended to include other containers that I would like to have running (e.g., a squid-deb-proxy for caching APT packages for Debian containers/VMs). Thanks!