Network interfaces are not detected on Windows

[cbednarski]

Nomad on Windows does not detect any network interfaces because the network fingerprinter for Windows is not currently implemented.

Fortunately our implementation for *nix was recently rewritten to use native go APIs that work cross platform. Yay!

_Un_fortunately the go 1.5 Windows implementation of net.Interfaces() has a bug that causes it to only show some of the interfaces on the host.

There is an open issue golang/go#12301 and patch that we may be able to include in Nomad to work around this.

Alternatively, we could parse the output from ipconfig and nets.

Some Possibilities

• Merge the implementations for Windows and Linux network fingerprinting

  And one of:

  • Merge the CL 14747 into Nomad
  • Wait for a golang release that fixes the problem

Or

• Implement an ipconfig/netsh parser

[ChrisHines]

golang/go#12301 has been fixed in Go 1.5.2.

[github-actions]

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