rpi-raspbian base image configured for cross-compilation. This images enables generic building on CI platforms (such as docker hub).
armv7hf-debian-qemu cross-compilation tools from https://github.com/resin-io-projects/armv7hf-debian-qemu.
This cross-compilation ability is important because building with the qemu ARM emulator can be very slow. The ability to build ARM-based images in CI can reduce time spent waiting and improve build times.
FROM tgolson/rpi-raspbian-cross RUN ["cross-build-start"] RUN <commands inside of ARM image> RUN ["cross-build-end"]