In Fedora 41, it seems the SSH daemon no longer automatically uses the
new certificate after its host certificates have been renewed. To get
it to pick up the new ones, we have to explicitly tell it to reload. To
handle that automatically, I've added a new systemd path unit that
monitors the certificate files. When it detects that one of them has
changed, it will send the signal to the SSH daemon to tell it to reload.
The _sshca-cli_ package no longer provides a _-systemd_ sub-package
containing the systemd unit files for automatically requesting and
renewing SSH host certificates. Its original intent was to support
automatically signing certificates on first boot by having the unit
files installed by Anaconda, but this never really worked for various
reasons. Since I'd rather not have to rebuild the RPMs every time I
need to make a change to the systemd units, and Ansible is required to
actually get the certificates issued anyway, it makes more sense to have
the unit files in the configuration policy instead.
Dustin