Set RCON_IP reliably via DNS command.

[slothbear]

[under construction]

Last week the RCON_IP was not set, though the log said it was (add log from last week).

Suspecting some kind of timing problem, I added a 2-second wait after setting the IP. I'm not sure why, but the RCON_IP was set correctly this week. Setting the config_var restarts the server, but perhaps that restart takes a moment?

Aliasing host iron-boots.pickaxe.club to ip 142.99.183.75
Nov 13 18:05:55 wither app/web.1 ---=== moving pickaxe to iron-boots at 142.99.183.75
Nov 13 18:05:57 wither app/web.1 ---=== having slept, setting RCON_IP to 142.99.183.75
Nov 13 18:05:57 wither app/web.1 ---=== [[unreachable code, since set_config_var reboots?]]
Nov 13 18:05:57 wither app/web.1 54.198.138.148 - - [14/Nov/2020:02:05:57 +0000] "POST /hook HTTP/1.1" 201 2 2.7202
Nov 13 18:05:57 wither app/web.1 54.91.248.236 - - [14/Nov/2020:02:05:57 +0000] "POST /hook HTTP/1.1" 200 4 0.0005
Nov 13 18:05:57 wither heroku/router at=info method=POST path="/hook" host=wither.herokuapp.com request_id=f2c251bc-3ec0-4fbc-84eb-188d62d3af5b fwd="54.198.138.148" dyno=web.1 connect=1ms service=2726ms status=201 bytes=212 protocol=https
Nov 13 18:05:57 wither heroku/router at=info method=POST path="/hook" host=wither.herokuapp.com request_id=dae81673-df35-4a45-b186-0a654fdbcf22 fwd="54.91.248.236" dyno=web.1 connect=5ms service=970ms status=200 bytes=209 protocol=https
Nov 13 18:05:57 wither app/api Release v724 created by user [email protected]
Nov 13 18:05:57 wither app/api Set RCON_IP config vars by user [email protected]
Nov 13 18:05:58 wither heroku/web.1 Restarting