Option to run dashboard on localhost only

[hpello]

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Environment Setup

Ubuntu 15.10
parse-dashboard v1.0.7 installed with npm install -g parse-dashboard

Steps to reproduce

parse-dashboard --config myconfig.json

Logs/Trace

The dashboard is now available at http://localhost:4040/

$ sudo netstat -plaunt | grep 4040
tcp6       0      0 :::4040                 :::*                    LISTEN      32108/node

---

Hello,

Is it possible to have the dashboard listen on localhost only?
So far, the app listens on :: (or IPv4 0.0.0.0) by default, which makes the message available at http://localhost:4040/ confusing.

A possibility would be to have an --host option, and/or a HOST env var (similarly to the option for the port) and pass it directly to express's listen() function along with the port.

My goal is to run the dashboard behind a HTTPS nginx proxy, and by listening on localhost only I can better restrict the access.

[flovilmart]

That's a very very valid point! Would you feel you could make a PR for that, that should be somewhat straightforward.

[hpello]

Hello,

Any news about this? I'll be happy to modify my pull request if needed.