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# Copyright 2013 OpenStack Foundation
#
# 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 argparse
import daemon
import extras
import gear
import logging
import logging.config
import os
import pbr.version
import signal
import sys
from six.moves import configparser as ConfigParser
pid_file_module = extras.try_imports(['daemon.pidlockfile', 'daemon.pidfile'])
class Server(object):
def __init__(self):
self.args = None
self.config = None
self.gear_server_pid = None
def parse_arguments(self):
parser = argparse.ArgumentParser(description="""
Gearman server.
If the statsd python module is available, set STATSD_HOST,
STATSD_PORT, and STATSD_PREFIX environment variables for statsd
support.
""")
parser.add_argument('-d', dest='nodaemon', action='store_true',
help='do not run as a daemon')
parser.add_argument('-p', dest='port', default=4730,
help='port on which to listen')
parser.add_argument('--log-config', dest='log_config',
help='logging config file')
parser.add_argument('--pidfile', dest='pidfile',
default='/var/run/geard/geard.pid',
help='PID file')
parser.add_argument('--ssl-ca', dest='ssl_ca', metavar='PATH',
help='path to CA certificate')
parser.add_argument('--ssl-cert', dest='ssl_cert', metavar='PATH',
help='path to SSL public certificate')
parser.add_argument('--ssl-key', dest='ssl_key', metavar='PATH',
help='path to SSL private key')
parser.add_argument('--acl', dest='acl', metavar='PATH',
help='path to ACL file')
parser.add_argument('--keepalive', dest='keepalive', default=False,
action='store_true',
help='enable TCP keepalives in socket')
parser.add_argument('--keepalive-idle', dest='tcp_keepidle', type=int,
default=7200, action='store',
help='TCP keepalive idle time')
parser.add_argument('--keepalive-interval', dest='tcp_keepintvl',
type=int, default=75, action='store',
help='TCP keepalive probe interval')
parser.add_argument('--keepalive-count', dest='tcp_keepcnt', type=int,
default=9, action='store',
help='TCP keepalive probes count')
parser.add_argument('--version', dest='version', action='store_true',
help='show version')
self.args = parser.parse_args()
def setup_logging(self):
if self.args.log_config:
if not os.path.exists(self.args.log_config):
raise Exception("Unable to read logging config file at %s" %
self.args.log_config)
logging.config.fileConfig(self.args.log_config)
else:
if self.args.nodaemon:
logging.basicConfig(level=logging.DEBUG)
else:
logging.basicConfig(level=logging.INFO,
filename="/var/log/geard/geard.log")
def main(self):
self.setup_logging()
statsd_host = os.environ.get('STATSD_HOST')
statsd_port = int(os.environ.get('STATSD_PORT', 8125))
statsd_prefix = os.environ.get('STATSD_PREFIX')
acl = None
if self.args.acl:
aclf = ConfigParser.RawConfigParser()
aclf.read(self.args.acl)
acl = gear.ACL()
for section in aclf.sections():
if aclf.has_option(section, 'register'):
register = aclf.get(section, 'register')
else:
register = None
if aclf.has_option(section, 'invoke'):
invoke = aclf.get(section, 'invoke')
else:
invoke = None
if aclf.has_option(section, 'grant'):
grant = aclf.getboolean(section, 'grant')
else:
grant = None
entry = gear.ACLEntry(section, register, invoke, grant)
acl.add(entry)
self.server = gear.Server(self.args.port,
self.args.ssl_key,
self.args.ssl_cert,
self.args.ssl_ca,
statsd_host,
statsd_port,
statsd_prefix,
acl=acl,
keepalive=self.args.keepalive,
tcp_keepidle=self.args.tcp_keepidle,
tcp_keepintvl=self.args.tcp_keepintvl,
tcp_keepcnt=self.args.tcp_keepcnt
)
signal.pause()
def main():
server = Server()
server.parse_arguments()
if server.args.version:
vi = pbr.version.VersionInfo('gear')
print("Gear version: {}".format(vi.version_string()))
sys.exit(0)
if server.args.nodaemon:
server.main()
else:
pid = pid_file_module.TimeoutPIDLockFile(server.args.pidfile, 10)
with daemon.DaemonContext(pidfile=pid):
server.main()
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