• https://dongle94.github.io/docker/docker-remote-private-registry/
• https://ikcoo.tistory.com/60
• https://5equal0.tistory.com/entry/Docker-Registry-%EC%82%AC%EC%84%A4-%EC%9B%90%EA%B2%A9-%EB%A0%88%EC%A7%80%EC%8A%A4%ED%8A%B8%EB%A6%AC-%EB%A7%8C%EB%93%A4%EA%B8%B0
• https://kimmj.github.io/docker/insecure-registry/