core.py 文件源码

def do_openstack_upgrade_db_migration(self):
        """Run database migration after upgrade

        :returns: None
        """
        if hookenv.is_leader():
            subprocess.check_call(self.sync_cmd)
        else:
            hookenv.log("Deferring DB sync to leader", level=hookenv.INFO)

    # NOTE(jamespage): Not currently used - switch from c-h function for perf?