* The services are using ExecPre to start sshd-pre script
* The sshd-pre script substitutes token in standard configuration file and writes a new on in /run
* The services are using a file in /run as a sshd_config
* PartOf is needed to trigger sshd-keygen checks for sshd.service restarts
* sshd-keygen.target makes a level of abstraction to eliminate dupplicate
dependencies on both sshd and sshd@ services
Split out the host keygen into their own command, to ease future migration
to systemd. Compatitbility with the init script was kept.
Migrate the package to full native systemd unit files, according to the Fedora
packaging guidelines.
Prepate the unit files for running an ondemand server. (do not add it actually)
