Setup ifconfig server, with fallback to public service

[vyzo]

The IP auto-detection implementation utilizes a public ip lookup service: initially ifconfig.me, which proved unreliable, and as of #82 ifconfig.co.

The code behind ifconfig.co is available at https://github.com/martinp/ipd, so we can easily setup and run our own ifconfig server at ifconfig.mediachain.io. We can then use it as primary, with fallback to the public server.

[parkan]

So just for fun I adapted ipd to be 1-click Heroku deployable and set up an instance at https://evening-journey-25199.herokuapp.com/

See https://github.com/parkan/ipd

Can setup an alias or w/e, presumably we want it to be https tho

[parkan]

Can drop in cert from letsencrypt or w/e for custom name too https://blog.heroku.com/announcing_heroku_free_ssl_beta_and_flexible_dyno_hours

[vyzo]

i don't think we care about https for this.

[parkan]

@jessewalden can you CNAME ifconfig.mediachain.io to mediachain-ifconfig.herokuapp.com?

[vyzo]

Is this actually any more reliable than using ifconfig.co?

[parkan]

@vyzo at least if it fails, it is our fault

[parkan]

hmm though ifconfig.co is also on heroku so maybe not

[jessewalden]

done

[parkan]

[master//aleph]% curl ifconfig.mediachain.io
67.244.113.119

nice

[vyzo]

ok, will open a PR for using it.