Add multinode nomad support

[dlamarmorgan]

Currently, the Nomad HCL file generated by Storj-up will only work if the Nomad cluster has a single node with enough resources to run everything on the same node. This is due to the structure of the HCL file (only a single task group), as well as assumptions made in the config (localhost for several ENV variables.).

This should be updated to be more flexible and separate out unique services to their own task group. This will allow nomad cluster with multiple nodes to spread out the load.

Acceptance Criteria:

• if you have a nomad cluster with multiple machines then generating a nomad HCL file should allow you to run the system like normal.
• BONUS: anytime nomad cluster gets spun up which machine gets to run each server can change. make it so that you can specify which machine runs each server.
  • make it so that we can have some level of consistency with the service web GUI ip/ ports.
  • some potential solutions could be using service mesh, or reverse proxy, or consul

[stoweandi]

@dlamarmorgan is this something we still need to do?

[dlamarmorgan]

It would be a nice feature to have, but I'm not sure how much the nomad portion of storj-up is actually used. So it is probably very low priority.