It enables you to run your own registry, and store your docker images locally. It is secured with simple http authentication and encrypted using TLS.
Create your own users and passwords.
htpasswd -Bbn john 1234 > auth/htpasswd
Generate self signed certificates.
make cert
make run
curl --user john:1234 --cacert ./certs/ca.pem https://127.0.0.1:5000/v2/_catalog
https://github.com/mayflower/docker-ls/releases