@staticmethod
def get_master_ips(client, cluster_id, network):
    return Cluster.get_ips_for_role(client, cluster_id, network, consts.NodeRoles.MASTER)
@staticmethod
def get_master_ips(client, cluster_id, network):
    return Cluster.get_ips_for_role(client, cluster_id, network, consts.NodeRoles.MASTER)