troubleshooting installation
At the moment docker cannot handle a local systemd-resolver as present in Ubuntu 18.04. If your machine has no access to the fallback DNS server 8.8.8.8 docker image creation will fail.
Solution: Follow this guide to deactivate the local systemd-resolver in ubuntu 18.04.
If you use a compatible linux distribution and you get the following error, you need to upgrade your python distro package.
Your Distribution (ubuntu 18.04) is not supported. FACT Installer requires Ubuntu 16.04, Ubuntu 18.04 or compatible!
This command should fix the issue:
$ sudo -EH pip3 install --upgrade distro 