~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sinatra
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
systemctl --no-pager | grep running > /var/tmp/before-reboot

systemctl stop cbagentd.service
systemctl stop nginx.service
systemctl stop snapd.service

---------------------
sync
sync
sync
reboot
-------------------  

systemctl status cbagentd.service
systemctl status nginx.service
systemctl status snapd.service

http://sinatra.binghamton.edu:8880/stats

systemctl --no-pager | grep running > /var/tmp/after-reboot