Removing old images

[netbrain]

Consider removing old images (1 year retention?) so that we don't accumulate images with hub.docker.com

See https://stackoverflow.com/questions/44209644/how-do-i-delete-a-docker-image-from-docker-hub-via-command-line for a possible solution.

[relief-melone]

how about something like this (podman just for illustration. should work with containerTool just as well)

IMAGES_TO_DELETE=$(podman images --filter reference!="<current-image>:<current-version>" --filter reference=<current-image> --filter until=<max-age-in-hours>h --format {{.ID}})
podman rmi $IMAGES_TO_DELETE

This basically gives you all images that are the current image but not the current tag that have an age of or older than max age and print out just the ids of those images.
After that delete those images. Of course this could just as well be a oneliner

[netbrain]

Yes this is important too. But this issue is regarding housekeeping on dockerhub, where I serve the Zwift container from.