110 lines
3.8 KiB
Python
Executable File
110 lines
3.8 KiB
Python
Executable File
#!/usr/bin/env python
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# pylint: disable-msg=C0103
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# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2010 United States Government as represented by the
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# Administrator of the National Aeronautics and Space Administration.
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# All Rights Reserved.
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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 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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"""Starter script for Nova API."""
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import gettext
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import os
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import sys
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from paste import deploy
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# If ../nova/__init__.py exists, add ../ to Python search path, so that
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# it will override what happens to be installed in /usr/(local/)lib/python...
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possible_topdir = os.path.normpath(os.path.join(os.path.abspath(sys.argv[0]),
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os.pardir,
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os.pardir))
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if os.path.exists(os.path.join(possible_topdir, 'nova', '__init__.py')):
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sys.path.insert(0, possible_topdir)
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gettext.install('nova', unicode=1)
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from nova import flags
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from nova import log as logging
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from nova import wsgi
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LOG = logging.getLogger('nova.api')
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LOG.setLevel(logging.DEBUG)
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LOG.addHandler(logging.StreamHandler())
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FLAGS = flags.FLAGS
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API_ENDPOINTS = ['ec2', 'openstack']
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def load_configuration(paste_config):
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"""Load the paste configuration from the config file and return it."""
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config = None
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# Try each known name to get the global DEFAULTS, which will give ports
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for name in API_ENDPOINTS:
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try:
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config = deploy.appconfig("config:%s" % paste_config, name=name)
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except LookupError:
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pass
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if config:
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verbose = config.get('verbose', None)
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if verbose:
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FLAGS.verbose = int(verbose) == 1
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if FLAGS.verbose:
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logging.getLogger().setLevel(logging.DEBUG)
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return config
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LOG.debug(_("Paste config at %s has no secion for known apis"),
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paste_config)
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print _("Paste config at %s has no secion for any known apis") % \
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paste_config
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os.exit(1)
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def launch_api(paste_config_file, section, server, port, host):
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"""Launch an api server from the specified port and IP."""
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LOG.debug(_("Launching %s api on %s:%s"), section, host, port)
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app = deploy.loadapp('config:%s' % paste_config_file, name=section)
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server.start(app, int(port), host)
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def run_app(paste_config_file):
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LOG.debug(_("Using paste.deploy config at: %s"), configfile)
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config = load_configuration(paste_config_file)
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LOG.debug(_("Configuration: %r"), config)
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server = wsgi.Server()
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ip = config.get('host', '0.0.0.0')
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for api in API_ENDPOINTS:
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port = config.get("%s_port" % api, None)
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if not port:
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continue
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host = config.get("%s_host" % api, ip)
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launch_api(configfile, api, server, port, host)
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LOG.debug(_("All api servers launched, now waiting"))
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server.wait()
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if __name__ == '__main__':
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FLAGS(sys.argv)
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configfiles = ['/etc/nova/nova-api.conf']
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if os.path.exists(os.path.join(possible_topdir, 'nova', '__init__.py')):
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configfiles.insert(0,
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os.path.join(possible_topdir, 'etc', 'nova-api.conf'))
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for configfile in configfiles:
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if os.path.exists(configfile):
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run_app(configfile)
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break
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else:
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LOG.debug(_("Skipping missing configuration: %s"), configfile)
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