技術》 Minimal Ubuntu, on public clouds and Docker Hub
原本使用 Alpine 的 image 可以考慮轉換到 Ubuntu 來了，另外因為 Ubuntu 這次的優化，我們可以把優化的任務先往後排，把時間先用著其他事情上面。
Smaller and faster, for automated cloud operations
Minimal Ubuntu is the smallest Ubuntu base image for your cloud operations. These images are less than 50% the size of the standard Ubuntu server image, and boot up to 40% faster. Images of Minimal Ubuntu 16.04 LTS and 18.04 LTS are available for use now in Amazon EC2, Google Compute Engine (GCE), LXD and KVM/OpenStack.
Tiny container base image
The 29MB Docker image for Minimal Ubuntu 18.04 LTS serves as a highly efficient container starting point, and allows developers to deploy multicloud containerized applications faster. For modern Docker workflows with Kubernetes, the minimal Ubuntu image provides a balance of compatibility, familiarity, performance and size. This is the standard Ubuntu 18.04 LTS image on the Docker Hub.