[DEPRECATED SOLUTION FROM BETA 15 ONWARDS]
The proper (and only, I think) way to set daemon options on Docker for Mac (beta) is using the pinata tool.
- Check current options with:
pinata get daemon
- Save the output in a daemon.json file
- Edit the file to hold your mirror settings. Example:
{ "storage-driver":"aufs", "debug":true, "registry-mirrors": [ "http://mymirror.com:5000" ] }
- Apply these settings:
pinata set daemon @daemon.json