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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 json
import logging
import os
import subprocess
import sys
import yaml
DOCKER_CMD = os.environ.get('HEAT_DOCKER_CMD', 'docker')
log = None
def build_response(deploy_stdout, deploy_stderr, deploy_status_code):
return {
'deploy_stdout': deploy_stdout,
'deploy_stderr': deploy_stderr,
'deploy_status_code': deploy_status_code,
}
def docker_arg_map(key, value):
value = str(value).encode('ascii', 'ignore')
return {
'container_step_config': None,
'environment': "--env=%s" % value,
'image': value,
'net': "--net=%s" % value,
'pid': "--pid=%s" % value,
'privileged': "--privileged=%s" % 'true' if value else 'false',
'restart': "--restart=%s" % value,
'user': "--user=%s" % value,
'volumes': "--volume=%s" % value,
'volumes_from': "--volumes-from=%s" % value,
}.get(key, None)
def main(argv=sys.argv):
global log
log = logging.getLogger('heat-config')
handler = logging.StreamHandler(sys.stderr)
handler.setFormatter(
logging.Formatter(
'[%(asctime)s] (%(name)s) [%(levelname)s] %(message)s'))
log.addHandler(handler)
log.setLevel('DEBUG')
c = json.load(sys.stdin)
input_values = dict((i['name'], i['value']) for i in c.get('inputs', {}))
if input_values.get('deploy_action') == 'DELETE':
json.dump(build_response(
'', '', 0), sys.stdout)
return
config = c.get('config', '')
if not config:
log.debug("No 'config' input found, nothing to do.")
json.dump(build_response(
'', '', 0), sys.stdout)
return
stdout = []
stderr = []
deploy_status_code = 0
# convert config to dict
if not isinstance(config, dict):
config = yaml.safe_load(config)
for container in sorted(config):
container_name = '%s__%s' % (c['name'], container)
cmd = [
DOCKER_CMD,
'run',
'--detach=true',
'--name',
container_name.encode('ascii', 'ignore'),
]
image_name = ''
for key in sorted(config[container]):
# These ones contain a list of values
if key in ['environment', 'volumes', 'volumes_from']:
for value in config[container][key]:
# Somehow the lists get empty values sometimes
if type(value) is unicode and not value.strip():
continue
cmd.append(docker_arg_map(key, value))
elif key == 'image':
image_name = config[container][key].encode('ascii', 'ignore')
else:
arg = docker_arg_map(key, config[container][key])
if arg:
cmd.append(arg)
# Image name must come last.
cmd.append(image_name)
log.debug(' '.join(cmd))
subproc = subprocess.Popen(cmd, stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
cmd_stdout, cmd_stderr = subproc.communicate()
log.debug(cmd_stdout)
log.debug(cmd_stderr)
if cmd_stdout:
stdout.append(cmd_stdout)
if cmd_stderr:
stderr.append(cmd_stderr)
if subproc.returncode:
log.error("Error running %s. [%s]\n" % (cmd, subproc.returncode))
else:
log.debug('Completed %s' % cmd)
if subproc.returncode != 0:
deploy_status_code = subproc.returncode
json.dump(build_response(
'\n'.join(stdout), '\n'.join(stderr), deploy_status_code), sys.stdout)
if __name__ == '__main__':
sys.exit(main(sys.argv))
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