systemd-nspawn

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

• Run a command in a container:

systemd-nspawn --directory path/to/container_root

• Run a full Linux-based OS in a container:

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

• Run the specified command as PID 2 in the container (as opposed to PID 1) using a stub init process:

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

• Specify the machine name and hostname:

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