I apologize in advance for the rather long PR, but unfortunately there
is not an easy way to break this up into smaller chunks. This separates
the agent configuration into smaller, more consumable pieces just like
the job specification.
The existing nomad.service is having minor configuration and this change
adds the following:
* Install section that allows nomad to be able enabled in systemd
* Default limit of open files is set to 65536
Seth Vargo