Execute the operation remotely. Specify a hostname, or a
username and hostname separated by @, to
connect to. The hostname may optionally be suffixed by a
container name, separated by :, which
connects directly to a specific container on the specified
host. This will use SSH to talk to the remote machine manager
instance. Container names may be enumerated with
machinectl -H
HOST.Execute operation on a local container. Specify a
container name to connect to.