122 lines
4.5 KiB
Python
122 lines
4.5 KiB
Python
#!/usr/bin/env python
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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"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""Starter script for Cinder Volume."""
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import logging as python_logging
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import os
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import eventlet
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from cinder import objects
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if os.name == 'nt':
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# eventlet monkey patching the os module causes subprocess.Popen to fail
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# on Windows when using pipes due to missing non-blocking IO support.
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eventlet.monkey_patch(os=False)
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else:
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eventlet.monkey_patch()
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import shlex
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import sys
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from oslo_config import cfg
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from oslo_log import log as logging
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from oslo_privsep import priv_context
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from oslo_reports import guru_meditation_report as gmr
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from oslo_reports import opts as gmr_opts
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from cinder import i18n
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i18n.enable_lazy()
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# Need to register global_opts
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from cinder.common import config # noqa
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from cinder.db import api as session
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from cinder.i18n import _
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from cinder import service
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from cinder import utils
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from cinder import version
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CONF = cfg.CONF
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deprecated_host_opt = cfg.DeprecatedOpt('host')
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host_opt = cfg.StrOpt('backend_host', help='Backend override of host value.',
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deprecated_opts=[deprecated_host_opt])
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CONF.register_cli_opt(host_opt)
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# TODO(geguileo): Once we complete the work on A-A update the option's help.
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cluster_opt = cfg.StrOpt('cluster',
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default=None,
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help='Name of this cluster. Used to group volume '
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'hosts that share the same backend '
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'configurations to work in HA Active-Active '
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'mode. Active-Active is not yet supported.')
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CONF.register_opt(cluster_opt)
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def main():
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objects.register_all()
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gmr_opts.set_defaults(CONF)
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CONF(sys.argv[1:], project='cinder',
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version=version.version_string())
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logging.setup(CONF, "cinder")
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python_logging.captureWarnings(True)
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priv_context.init(root_helper=shlex.split(utils.get_root_helper()))
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utils.monkey_patch()
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gmr.TextGuruMeditation.setup_autorun(version, conf=CONF)
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launcher = service.get_launcher()
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LOG = logging.getLogger(__name__)
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service_started = False
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if CONF.enabled_backends:
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for backend in filter(None, CONF.enabled_backends):
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CONF.register_opt(host_opt, group=backend)
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backend_host = getattr(CONF, backend).backend_host
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host = "%s@%s" % (backend_host or CONF.host, backend)
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# We also want to set cluster to None on empty strings, and we
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# ignore leading and trailing spaces.
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cluster = CONF.cluster and CONF.cluster.strip()
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cluster = (cluster or None) and '%s@%s' % (cluster, backend)
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try:
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server = service.Service.create(host=host,
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service_name=backend,
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binary='cinder-volume',
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coordination=True,
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cluster=cluster)
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except Exception:
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msg = _('Volume service %s failed to start.') % host
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LOG.exception(msg)
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else:
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# Dispose of the whole DB connection pool here before
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# starting another process. Otherwise we run into cases where
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# child processes share DB connections which results in errors.
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session.dispose_engine()
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launcher.launch_service(server)
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service_started = True
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else:
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LOG.error('Configuration for cinder-volume does not specify '
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'"enabled_backends". Using DEFAULT section to configure '
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'drivers is not supported since Ocata.')
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if not service_started:
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msg = _('No volume service(s) started successfully, terminating.')
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LOG.error(msg)
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sys.exit(1)
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launcher.wait()
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