CI: Makefile/Docker testing

To test the build on various distro, we are using docker containers and a Makefile for orchestration.

pros:

You are independent of third party CI runner config (e.g. github actions runners or Travis-CI VM images).
You can run it locally on any unix system.
Most CI provide runner with docker and Makefile installed.

cons:

Only GNU/Linux distro supported.
Could take few GiB (~30 GiB for all distro and all languages)
- ~500MiB OS + C++/CMake tools,
- ~150 MiB Python, wheel,

Usage

To get the help simply type:

make

note: you can also use from top directory

make --directory=tools/docker

For example to test inside an Alpine container:

make alpine-edge_test

Dockerfile is splitted in several stages.

You can build and run aarch64 docker container on a x86_64 by enabling qemu support:

docker run --rm --privileged multiarch/qemu-user-static --reset -p yes