20.04 作業系統 (4+ Core / 6G+ Memory / 30G+ Disk) l https://releases.ubuntu.com/20.04/ l 安裝 docker l https://docs.docker.com/engine/install/ubuntu/ l 使用 non-root user 執行 docker l https://docs.docker.com/engine/install/linux-postinstall/#manage-docker-as-a-non-root-user l 安裝流程 l https://gist.github.com/pichuang/a2e95dd22855f108d962ea0b29102fa4