Use systemd for auto start of primary, redis and worker servers

[chrisnatali]

Need to create systemd unit file for primary, redis and worker servers. Need it to run as mr user.
This looks like a simple example to start from:
http://www.devdungeon.com/content/creating-systemd-service-files

Will need to be configured separately for primary, redis and workers...conda needs to be in path and activated and then the appropriate start script should run:
primary
redis
worker

Managing systemd services:
https://www.digitalocean.com/community/tutorials/how-to-use-systemctl-to-manage-systemd-services-and-units