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#!/usr/bin/env python
# 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 datetime
from distutils.version import LooseVersion
import errno
import logging
import os
import pkg_resources
import subprocess
import sys
VAR_PATH = '/var/lib/heat-cfntools'
LOG = logging.getLogger('heat-provision')
def chk_ci_version():
v = LooseVersion(pkg_resources.get_distribution('cloud-init').version)
return v >= LooseVersion('0.6.0')
def init_logging():
LOG.setLevel(logging.INFO)
LOG.addHandler(logging.StreamHandler())
fh = logging.FileHandler("/var/log/heat-provision.log")
os.chmod(fh.baseFilename, 0o600)
LOG.addHandler(fh)
def call(args):
class LogStream(object):
def write(self, data):
LOG.info(data)
LOG.info('%s\n' % ' '.join(args))
try:
ls = LogStream()
p = subprocess.Popen(args, stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
data = p.communicate()
if data:
for x in data:
ls.write(x)
except OSError as ex:
if ex.errno == errno.ENOEXEC:
LOG.error('Userdata empty or not executable: %s\n' % str(ex))
return os.EX_OK
else:
LOG.error('OS error running userdata: %s\n' % str(ex))
return os.EX_OSERR
except Exception as ex:
LOG.error('Unknown error running userdata: %s\n' % str(ex))
return os.EX_SOFTWARE
return p.returncode
def main():
if not chk_ci_version():
# pre 0.6.0 - user data executed via cloudinit, not this helper
LOG.error('Unable to log provisioning, need a newer version of'
' cloud-init\n')
return -1
userdata_path = os.path.join(VAR_PATH, 'cfn-userdata')
os.chmod(userdata_path, 0o700)
LOG.info('Provision began: %s\n' % datetime.datetime.now())
returncode = call([userdata_path])
LOG.info('Provision done: %s\n' % datetime.datetime.now())
if returncode:
return returncode
if __name__ == '__main__':
init_logging()
code = main()
if code:
LOG.error('Provision failed with exit code %s' % code)
sys.exit(code)
provision_log = os.path.join(VAR_PATH, 'provision-finished')
# touch the file so it is timestamped with when finished
with file(provision_log, 'a'):
os.utime(provision_log, None)
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