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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.
"""
Implements cfn-signal CloudFormation functionality
"""
import argparse
import logging
import sys
from heat_cfntools.cfntools import cfn_helper
description = " "
parser = argparse.ArgumentParser(description=description)
parser.add_argument('-s', '--success',
dest="success",
help="signal status to report",
default='true',
required=False)
parser.add_argument('-r', '--reason',
dest="reason",
help="The reason for the failure",
default="Configuration Complete",
required=False)
parser.add_argument('-d', '--data',
dest="data",
default="Application has completed configuration.",
help="The data to send",
required=False)
parser.add_argument('-i', '--id',
dest="unique_id",
help="the unique id to send back to the WaitCondition",
default=None,
required=False)
parser.add_argument('-e', '--exit-code',
dest="exit_code",
help="The exit code from a procecc to interpret",
default=None,
required=False)
parser.add_argument('--exit',
dest="exit",
help="DEPRECATED! Use -e or --exit-code instead.",
default=None,
required=False)
parser.add_argument('url',
help='the url to post to')
parser.add_argument('-k', '--insecure',
help="This will make insecure https request to cfn-api.",
action='store_true')
args = parser.parse_args()
log_format = '%(levelname)s [%(asctime)s] %(message)s'
log_file_name = "/var/log/cfn-signal.log"
logging.basicConfig(filename=log_file_name,
format=log_format,
level=logging.DEBUG)
LOG = logging.getLogger('cfntools')
LOG.debug('cfn-signal called %s ' % (str(args)))
if args.exit:
LOG.warning('--exit DEPRECATED! Use -e or --exit-code instead.')
status = 'FAILURE'
exit_code = args.exit_code or args.exit
if exit_code:
# "exit_code" takes presedence over "success".
if exit_code == '0':
status = 'SUCCESS'
else:
if args.success == 'true':
status = 'SUCCESS'
unique_id = args.unique_id
if unique_id is None:
LOG.debug('No id passed from the command line')
md = cfn_helper.Metadata('not-used', None)
unique_id = md.get_instance_id()
if unique_id is None:
LOG.error('Could not get the instance id from metadata!')
import socket
unique_id = socket.getfqdn()
LOG.debug('id: %s' % (unique_id))
body = {
"Status": status,
"Reason": args.reason,
"UniqueId": unique_id,
"Data": args.data
}
insecure = ""
if args.insecure:
insecure = "--insecure"
cmd_str = ("curl %s -X PUT -H \'Content-Type:\' --data-binary \'%s\' \"%s\"" %
(insecure, cfn_helper.json.dumps(body), args.url))
command = cfn_helper.CommandRunner(cmd_str).run()
if command.status != 0:
LOG.error(command.stderr)
sys.exit(command.status)
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