etcd_databag.py 文件源码

def cluster_token(self):
        ''' Getter to return the unique cluster token. '''
        if not is_leader():
            return leader_get('token')

        if not self.db.get('cluster-token'):
            token = self.id_generator()
            self.db.set('cluster-token', token)
            return token
        return self.db.get('cluster-token')