Forked from the Hypriot guys to update the alpine linux version and qemu-arm-static. Go give them a follow and support the work they're doing for bringing docker to RPi. Wouldn't have my container lab without them.
Build an Alpine Docker image for ARM with the qemu-arm-static binary.
You are able to run this Docker image in Docker for Mac/Windows.
The Docker image is based on armhf/alpine.