How to build a smaller Docker image

https://medium.com/@gdiener/how-to-build-a-smaller-docker-image-76779e18d48a

Docker images from Google

Language focused docker images, minus the operating system Base images for Google Docker containers

A minimal Ubuntu base image modified for Docker-friendliness

Baseimage-docker only consumes 8.3 MB RAM and is much more powerful than Busybox or Alpine