#!/bin/bash
echo Delete image from register and push it again
reg='dockreg:5000'
image='mubu7'
itag='v7'
auth='-u alexander:sofianos'
accept=(
-H "Accept: application/vnd.docker.distribution.manifest.v2+json"
)

echo Curl delete on the hash value - digest; read
curl ${auth} -vsk \
  -X DELETE \
    "https://${reg}/v2/${image}/manifests/$(
      curl ${auth} \
      -vk "${accept[@]}" \
        https://${reg}/v2/${image}/manifests/${itag} 2>&1 |\
  grep docker-content-digest | awk '{print $3}' |\
  tr -d $'\r'
)"

echo Delete blobs; read
kubectl exec -it dockreg-pod -- sh -c "
    bin/registry garbage-collect \
    /etc/docker/registry/config.yml && \
    rm -rf \
    /var/lib/registry/docker/registry/v2/repositories/${image} && \
    echo; echo ls repositories; read
    ls /var/lib/registry/docker/registry/v2/repositories
"
echo
echo Push again the deleted image mubu7; read
docker push ${reg}/${image}:${itag}
echo
echo Query repositories; read
curl ${auth} -ik https://${reg}/v2/_catalog