docker-kojibuilder

A systemd service and supporting files for running a koji builder.

Instructions:

1. Install docker or podman; start it if necessary
2. Run make install
3. Run systemctl daemon-reload
4. Put a koji cert-key into /etc/osg/kojibuilder.pem
5. Edit /etc/osg/kojibuilder.cfg as appropriate
6. Run systemctl start kojibuilder