137 lines
4.4 KiB
Python
137 lines
4.4 KiB
Python
# Copyright (c) 2013 Hewlett-Packard Development Company, L.P.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import json
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import os
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import subprocess
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import sys
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from openstack.common import log
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from os_collect_config import cache
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from os_collect_config import cfn
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from os_collect_config import common
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from os_collect_config import ec2
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from os_collect_config import exc
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from os_collect_config import heat_local
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from oslo.config import cfg
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DEFAULT_COLLECTORS = ['ec2', 'cfn', 'heat_local']
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opts = [
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cfg.StrOpt('command',
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short='c',
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help='Command to run on metadata changes.'),
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cfg.StrOpt('cachedir',
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default='/var/run/os-collect-config',
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help='Directory in which to store local cache of metadata'),
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cfg.MultiStrOpt(
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'collectors',
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positional=True,
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default=DEFAULT_COLLECTORS,
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help='List the collectors to use. When command is specified the'
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'collections will be emitted in the order given by this option.'
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' (default: %s)' % ' '.join(DEFAULT_COLLECTORS)),
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]
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CONF = cfg.CONF
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logger = log.getLogger('os-collect-config')
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COLLECTORS = {ec2.name: ec2,
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cfn.name: cfn,
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heat_local.name: heat_local}
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def setup_conf():
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ec2_group = cfg.OptGroup(name='ec2',
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title='EC2 Metadata options')
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cfn_group = cfg.OptGroup(name='cfn',
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title='CloudFormation API Metadata options')
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heat_local_group = cfg.OptGroup(name='heat_local',
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title='Heat Local Metadata options')
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CONF.register_group(ec2_group)
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CONF.register_group(cfn_group)
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CONF.register_group(heat_local_group)
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CONF.register_cli_opts(ec2.opts, group='ec2')
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CONF.register_cli_opts(cfn.opts, group='cfn')
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CONF.register_cli_opts(heat_local.opts, group='heat_local')
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CONF.register_cli_opts(opts)
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def collect_all(collectors, store=False, requests_impl_map=None):
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any_changed = False
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if store:
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paths_or_content = []
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else:
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paths_or_content = {}
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for collector in collectors:
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module = COLLECTORS[collector]
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if requests_impl_map and collector in requests_impl_map:
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requests_impl = requests_impl_map[collector]
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else:
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requests_impl = common.requests
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try:
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content = module.Collector(
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requests_impl=requests_impl).collect()
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except exc.SourceNotAvailable:
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logger.warn('Source [%s] Unavailable.' % collector)
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continue
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if store:
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(changed, path) = cache.store(collector, content)
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any_changed |= changed
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paths_or_content.append(path)
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else:
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paths_or_content[collector] = content
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return (any_changed, paths_or_content)
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def __main__(args=sys.argv, requests_impl_map=None):
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setup_conf()
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CONF(args=args[1:], prog="os-collect-config")
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log.setup("os-collect-config")
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unknown_collectors = set(CONF.collectors) - set(DEFAULT_COLLECTORS)
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if unknown_collectors:
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raise exc.InvalidArguments(
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'Unknown collectors %s. Valid collectors are: %s' %
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(list(unknown_collectors), DEFAULT_COLLECTORS))
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(any_changed, content) = collect_all(cfg.CONF.collectors,
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store=bool(CONF.command),
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requests_impl_map=requests_impl_map)
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if CONF.command:
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if any_changed:
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env = dict(os.environ)
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env["OS_CONFIG_FILES"] = ':'.join(content)
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logger.info("Executing %s" % CONF.command)
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subprocess.call(CONF.command, env=env, shell=True)
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for collector in cfg.CONF.collectors:
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cache.commit(collector)
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else:
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logger.debug("No changes detected.")
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else:
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print json.dumps(content, indent=1)
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if __name__ == '__main__':
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__main__()
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