Comment 1 for bug 1616178

env.roledefs = {
    'all': [host1, host2, host3, host4, host5, host6 ],
    'cfgm': [host1, host2, host3],
    'openstack': [host1],
    'control': [host1, host2, host3],
    'compute': [host4, host5, host6],
    'collector': [host1, host2, host3],
    'webui': [host1, host2, host3],
    'database': [host1, host2, host3],
    'build': [host_build],
}