I figure out that many packages installations are calling systemd to start their software. The problem is that if you want to install the software inside a docker, it will make fail the installation. Because by default Debian makes installation fail if there is a failure inside a post-install script.
Elasticsearch team did a workaround for that (I'm not sure they understand that it fixes for docker users). But it's a problem for many packages.
Is there a way to make them work anyway inside a debian/ubuntu docker?