https://www.redhat.com/zh/blog/introducing-red-hat-universal-base-image
https://hub.docker.com/r/redhat/ubi8-init
https://hub.docker.com/r/redhat/ubi8
https://hub.docker.com/r/redhat/ubi8-minimal
容器術語介紹:https://developers.redhat.com/blog/2018/02/22/container-terminology-practical-introduction#