cloudbase-init/cloudbaseinit/plugins/common/userdataplugins/heat.py

53 lines
1.8 KiB
Python

# Copyright 2013 Mirantis Inc.
# Copyright 2014 Cloudbase Solutions Srl
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import os
import six
from cloudbaseinit import conf as cloudbaseinit_conf
from cloudbaseinit.plugins.common.userdataplugins import base
from cloudbaseinit.plugins.common import userdatautils
from cloudbaseinit.utils import encoding
CONF = cloudbaseinit_conf.CONF
class HeatPlugin(base.BaseUserDataPlugin):
_heat_user_data_filename = "cfn-userdata"
def __init__(self):
super(HeatPlugin, self).__init__("text/x-cfninitdata")
def _check_dir(self, file_name):
dir_name = os.path.dirname(file_name)
if not os.path.exists(dir_name):
os.makedirs(dir_name)
def process(self, part):
file_name = os.path.join(CONF.heat_config_dir, part.get_filename())
self._check_dir(file_name)
payload = part.get_payload(decode=True)
encoding.write_file(file_name, payload)
if part.get_filename() == self._heat_user_data_filename:
# Normalize the payload to bytes, since `execute_user_data_script`
# operates on bytes and `get_payload` returns a string on
# Python 3.
if isinstance(payload, six.text_type):
payload = payload.encode()
return userdatautils.execute_user_data_script(payload)