Feature/volumes from

[finishes: #74531334]

Depends on API feature:
https://github.com/CenturyLinkLabs/panamax-api/pull/213

I will merge commits upon merge.
I don't think line 127 is doing anything... (you may have forgotten the return). If that was your intention, A clever way to accomplish the same would be:
```ruby
Array(volumes).select  { |volume| volume.host_path.empty? }
```