+hosts: # hosts on which VMs run
+ - hostname: citadel-station.mit.edu
+ internal_ip: citadel-station-internal
+ ip: 18.181.0.221
+ - hostname: aperture-science.mit.edu
+ internal_ip: aperture-science-internal
+ ip: 18.181.0.222
+ - hostname: shadow-moses.mit.edu
+ internal_ip: shadow-moses-internal
+ ip: 18.181.0.223
+ - hostname: arklay-mansion.mit.edu
+ internal_ip: arklay-mansion-internal
+ ip: 18.181.0.224