How to use GC in Docker Registry without accessing container

Question

I want to use the garbage collection of the docker registry without going inside my container. Is there a way to use the API to perform the GC? My main goal is to run the GC from a script on another server.

Answer 1

"Running garbage collection" does not involve any remote/REST API
(although this is debated on issue 1515).

bin/registry garbage-collect [--dry-run] /path/to/config.yml

So you would need to add to your registry container a listener in order for you to call that remote url, and for that listener to trigger internally the gc.