delete-docker-registry-image

Install

curl https://raw.githubusercontent.com/burnettk/delete-docker-registry-image/master/delete_docker_registry_image.py | sudo tee /usr/local/bin/delete_docker_registry_image >/dev/null
sudo chmod a+x /usr/local/bin/delete_docker_registry_image

Run

Set up your data directory via an environment variable:

export REGISTRY_DATA_DIR=/opt/registry_data/docker/registry/v2

You can also just edit the script where this variable is set to make it work for your setup.

Almost delete a repo:

delete_docker_registry_image --image testrepo/awesomeimage --dry-run

Actually delete a repo (remember to shut down your registry first):

delete_docker_registry_image --image testrepo/awesomeimage

Delete one tag from a repo:

delete_docker_registry_image --image testrepo/awesomeimage:supertag

clean_old_versions.py

This complimentary script is made to remove tags in repository based on regexp pattern.

Usage:

./clean_old_versions.py --image reg_exp_of_repository_to_find --include reg_exp_of_tag_to_find -l history_to_maintain --registry-url location_of_docker_registry -o tag_ordering -b only_tags_before_date -a only_tags_after_date

Example: Search for all images whose name start with 'repo/sitor' and delete all tags whose name start with '0.1.' keeping the last 2 tags and of the remaining tags deletes only those having an image creation time between January 1, 2016 12 a.m. and June 25, 2016 12 p.m. (both datetimes are exclusive).

./clean_old_versions.py --image '^repo/sitor*' --include '^0.1.*' -l 2 -b 2016-06-25T12:00:00 -a 2016-01-01T00:00:00 --registry-url http://localhost:5000

Add --dry-run as argument for a test run without actual removal of tags.