This is just a basic docker image based on Debian 8.4 but with a lot of the cruft removed to keep it lightweight.
Designed for daily building with the latest security updates.
This really started for my own use but is currently locked to English locale and Europe/London timezone.
Easily tweaked if you want to change things.
Running this will build the Dockerfile and tag the image with today's date.
Up to you if you want to tag it as latest.
docker build -t userzero/base-debian:8.4-"$(date +'%Y%m%d')" . docker tag -f userzero/base-debian:8.4-"$(date +'%Y%m%d')" userzero/base-debian:latest