adapters.py 文件源码

def single_mode_map(self):
        """Return map of local addresses only if this is a single node cluster

           @return dict of local address info e.g.
               {'cluster_hosts':
                   {'this_unit_private_addr': {
                        'backends': {
                            'this_unit-1': 'this_unit_private_addr'},
                        'network': 'this_unit_private_addr/private_netmask'},
                'internal_addresses': ['intaddr']}
        """
        relation_info = {}
        try:
            cluster_relid = hookenv.relation_ids('cluster')[0]
            if not hookenv.related_units(relid=cluster_relid):
                relation_info = {
                    'cluster_hosts': self.local_default_addresses(),
                    'internal_addresses': self.internal_addresses,
                }
                net_split = self.local_network_split_addresses()
                for key in net_split.keys():
                    relation_info['cluster_hosts'][key] = net_split[key]
        except IndexError:
            pass
        return relation_info