deb-ceilometer/ceilometer/service.py
ZhiQiang Fan d288a28589 Remove unnecessary import_opt|group
Usually, we should import an option before we use it, otherwise,
NoSuchOpt exception will be raised.

When we import a module, the options in that module are registered,
(or imported), so we don't need to explicitly import them again.
However, it is a bit hard for developers, reviewers and maintainers
to track between files just to check if a specific option is imported
or not. So it is good (not required) whenever we use an option, we import
it explicitly, such kind of redundant is acceptable. But not the case that
we already import a module A, then import_opt|group registered or imported
in that module again, this is obviously unnecessary and should be avoid.

Change-Id: I8672d9f12d862f9a622e5557d9c8dc2fe6717f5e
Closes-Bug: #1389229
2014-12-26 18:52:55 +08:00

123 lines
4.6 KiB
Python

#!/usr/bin/env python
#
# Copyright 2012-2014 eNovance <licensing@enovance.com>
#
# Author: Julien Danjou <julien@danjou.info>
#
# 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 os
import socket
import sys
from oslo.config import cfg
from oslo import i18n
from ceilometer.i18n import _
from ceilometer import messaging
from ceilometer.openstack.common import log
from ceilometer import utils
OPTS = [
cfg.StrOpt('host',
default=socket.gethostname(),
help='Name of this node, which must be valid in an AMQP '
'key. Can be an opaque identifier. For ZeroMQ only, must '
'be a valid host name, FQDN, or IP address.'),
cfg.IntOpt('collector_workers',
default=1,
help='Number of workers for collector service. A single '
'collector is enabled by default.'),
cfg.IntOpt('notification_workers',
default=1,
help='Number of workers for notification service. A single '
'notification agent is enabled by default.'),
cfg.IntOpt('http_timeout',
default=600,
help='Timeout seconds for HTTP requests. Set it to None to '
'disable timeout.'),
]
cfg.CONF.register_opts(OPTS)
CLI_OPTS = [
cfg.StrOpt('os-username',
deprecated_group="DEFAULT",
default=os.environ.get('OS_USERNAME', 'ceilometer'),
help='User name to use for OpenStack service access.'),
cfg.StrOpt('os-password',
deprecated_group="DEFAULT",
secret=True,
default=os.environ.get('OS_PASSWORD', 'admin'),
help='Password to use for OpenStack service access.'),
cfg.StrOpt('os-tenant-id',
deprecated_group="DEFAULT",
default=os.environ.get('OS_TENANT_ID', ''),
help='Tenant ID to use for OpenStack service access.'),
cfg.StrOpt('os-tenant-name',
deprecated_group="DEFAULT",
default=os.environ.get('OS_TENANT_NAME', 'admin'),
help='Tenant name to use for OpenStack service access.'),
cfg.StrOpt('os-cacert',
default=os.environ.get('OS_CACERT'),
help='Certificate chain for SSL validation.'),
cfg.StrOpt('os-auth-url',
deprecated_group="DEFAULT",
default=os.environ.get('OS_AUTH_URL',
'http://localhost:5000/v2.0'),
help='Auth URL to use for OpenStack service access.'),
cfg.StrOpt('os-region-name',
deprecated_group="DEFAULT",
default=os.environ.get('OS_REGION_NAME'),
help='Region name to use for OpenStack service endpoints.'),
cfg.StrOpt('os-endpoint-type',
default=os.environ.get('OS_ENDPOINT_TYPE', 'publicURL'),
help='Type of endpoint in Identity service catalog to use for '
'communication with OpenStack services.'),
cfg.BoolOpt('insecure',
default=False,
help='Disables X.509 certificate validation when an '
'SSL connection to Identity Service is established.'),
]
cfg.CONF.register_cli_opts(CLI_OPTS, group="service_credentials")
LOG = log.getLogger(__name__)
class WorkerException(Exception):
"""Exception for errors relating to service workers."""
def get_workers(name):
workers = (cfg.CONF.get('%s_workers' % name) or
utils.cpu_count())
if workers and workers < 1:
msg = (_("%(worker_name)s value of %(workers)s is invalid, "
"must be greater than 0") %
{'worker_name': '%s_workers' % name, 'workers': str(workers)})
raise WorkerException(msg)
return workers
def prepare_service(argv=None):
i18n.enable_lazy()
log_levels = (cfg.CONF.default_log_levels +
['stevedore=INFO', 'keystoneclient=INFO'])
cfg.set_defaults(log.log_opts,
default_log_levels=log_levels)
if argv is None:
argv = sys.argv
cfg.CONF(argv[1:], project='ceilometer')
log.setup('ceilometer')
messaging.setup()