It would be really useful to have an option to schedule the Garbage Collector run every few days. And also be able to delete the images according to some criteria like:
  • Last pull date
  • Last push date
  • Tag names or regex tag
Examples
  • Every day, delete all images that have the tag "green" and have not been pulled in the last 30 days
  • Every Friday delete all images that have not been pulled in the last 45 days, except the tags ["latest", "1.*"]