sitedefault: firstcluster

firstcluster:
    boxone: 10.0.0.11:8000
    boxtwo: 10.0.0.12:8000

secondcluster:
    boxthree: 10.0.0.13:8000
    boxfour: 10.0.0.14:8000

thirdcluster:
    boxfive: 10.0.0.15:8000
    boxsix: 10.0.0.16:8000

twoclusters:
    - firstcluster
    - secondcluster