systemd-nspawn

Spawn a command or OS in a lightweight container. More information: https://www.freedesktop.org/software/systemd/man/latest/systemd-nspawn.html.

systemd-nspawn --directory path/to/container_root

systemd-nspawn --boot --directory path/to/container_root

systemd-nspawn --directory path/to/container_root --as-pid2

systemd-nspawn --machine=container_name --hostname=container_host --directory path/to/container_root