Delete image from docker-registry

1. get image tags

       curl -s -i -u {username:password} "https://{docker-registry:port}/v2/{image-name}/tags/list"
       

2. get each tag digest

       curl -s -i -u {username:password} -H "Accept: application/vnd.docker.distribution.manifest.v2+json" "https://{docker-registry:port}/v2/{image-name}/manifests/{tag-name}" | grep "Digest"
       

3. delete each image tag

       curl -XDELETE -s -i -u {username:password} "https://{docker-registry:port}/v2/{image-name}/manifests/{digest}"
       

4. remove the image repository folder (optional)

       # go to the docker-registry server
       # cd registry data foler
       rm -rf ./docker/registry/v2/repositories/{image-name}
       

5. check if the image is still there

       curl -s -i -u {username:password} "https://{docker-registry:port}/v2/_catalog"