$ curl -sS http://localhost:15000/v2/_catalog
{"repositories":["m101/agent"]}
[exit 0]

$ curl -sS http://localhost:15000/v2/m101/agent/tags/list
{"name":"m101/agent","tags":["v1"]}
[exit 0]

$ curl -sS -I -H 'Accept: application/vnd.oci.image.manifest.v1+json, application/vnd.oci.image.index.v1+json, application/vnd.docker.distribution.manifest.v2+json' http://localhost:15000/v2/m101/agent/manifests/v1
HTTP/1.1 200 OK
Content-Length: 704
Content-Type: application/vnd.oci.image.manifest.v1+json
Docker-Content-Digest: sha256:<digest>
Docker-Distribution-Api-Version: registry/2.0
Etag: "sha256:<digest>"
X-Content-Type-Options: nosniff
Date: <http-date>
[exit 0]