Uses the https://hub.docker.com/r/hypriot/rpi-alpine-scratch/ as the base parent image.
Works the same way as: https://hub.docker.com/_/haproxy/
using a arm alpine image so only a little over 13mb.
Tested and working on a raspberry pi 3.
with the exception of calling the image:
Create a Dockerfile:
COPY haproxy.cfg /usr/local/etc/haproxy/haproxy.cfg