def require_admin_context(ctxt):
    if not ctxt.is_admin:
        raise exception.AdminRequired()
Returns external IP address of the master of the cluster.
dataset/ETHPy150Open openstack/rack/rack/context.py/require_admin_context--crossover with--dataset/ETHPy150Open GoogleCloudPlatform/Data-Pipeline/app/src/hadoop/datastore.py/ClusterInfo.GetMasterIpAddress