Virtual machine and container registration manager
systemd-machined.service
/lib/systemd/systemd-machined
systemd-machined is a system service that keeps track of virtual machines and containers, and processes belonging to them.
See systemd-nspawn(1) for some examples on how to start a container the systemd way.
See the \m[blue]machined D-Bus API Documentation\m[]\s-2\u[1]\d\s+2 for information about the APIs systemd-machined provides.
machined D-Bus API Documentation
http://www.freedesktop.org/wiki/Software/systemd/machined