1. Registry without authentication

https://docs.docker.com/registry/#tldr

docker-compose up
docker pull ubuntu
docker tag ubuntu localhost:5000/myubuntuimage
docker push localhost:5000/myubuntuimage
docker stop registry && docker rm -v registry

2. Registry with authentication - https://stackoverflow.com/questions/38247362/how-i-can-use-docker-registry-with-login-password

docker run --entrypoint htpasswd registry:2 -Bbn jorge 1234 >> auth/htpasswd
docker-compose --file docker-compose-pass.yml up
docker login localhost:5000
docker tag ubuntu localhost:5000/myubuntuimage
docker pull localhost:5000/myubuntuimage

https://localhost:5000/v2/_catalog
https://localhost:5000/v2/myubuntuimage/tags/list

3. Registry with certificate

https://www.ibm.com/developerworks/community/blogs/455efed5-19ca-4978-953d-9e0b4f4fb74d/entry/How_to_set_up_Docker_private_registry?lang=en
https://docs.docker.com/registry/insecure/#use-self-signed-certificates
https://docs.docker.com/registry/insecure/#troubleshoot-insecure-registry

mkdir certs
openssl req -newkey rsa:4096 -nodes -sha256 -keyout certs/domain.key -subj "/CN=localhost" -x509 -days 365 -out certs/domain.crt

~/.docker/config.json
{
    "auths": {
        "localhost:5000": {
            "auth": "bXl1c2VyOm15cGFzc3dvcmQ="
        }
    }