3 # $Id: nm.py,v 1.15.2.8 2007/09/04 20:50:30 faiyaza Exp $
18 from config import Config
19 from plcapi import PLCAPI
23 savedargv = sys.argv[:]
25 parser = optparse.OptionParser()
26 parser.add_option('-d', '--daemon', action='store_true', dest='daemon', default=False, help='run daemonized')
27 parser.add_option('-s', '--startup', action='store_true', dest='startup', default=False, help='run all sliver startup scripts')
28 parser.add_option('-f', '--config', action='store', dest='config', default='/etc/planetlab/plc_config', help='PLC configuration file')
29 parser.add_option('-k', '--session', action='store', dest='session', default='/etc/planetlab/session', help='API session key (or file)')
30 parser.add_option('-p', '--period', action='store', dest='period', default=600, help='Polling interval (sec)')
31 (options, args) = parser.parse_args()
36 try: data = plc.GetSlivers()
37 except: logger.log_exc()
38 # Set i2 ip list for nodes in I2 nodegroup.
39 try: net.GetSlivers(plc, data)
40 except: logger.log_exc()
41 # All other callback modules
42 for module in modules:
44 callback = getattr(module, 'GetSlivers')
46 except: logger.log_exc()
50 if options.daemon: tools.daemon()
52 # Load /etc/planetlab/plc_config
53 config = Config(options.config)
56 other_pid = tools.pid_file()
58 print """There might be another instance of the node manager running as pid %d. If this is not the case, please remove the pid file %s""" % (other_pid, tools.PID_FILE)
61 print "Warning while writing PID file:", err
63 # Load and start modules
64 for module in ['proper', 'conf_files', 'sm', 'bwmon']:
66 m = __import__(module)
67 m.start(options, config)
69 except ImportError, err:
70 print "Warning while loading module %s:" % module, err
72 # Load /etc/planetlab/session
73 if os.path.exists(options.session):
74 session = file(options.session).read().strip()
76 session = options.session
78 # Initialize XML-RPC client
79 plc = PLCAPI(config.plc_api_uri, config.cacert, session, timeout=options.period/2)
84 time.sleep(options.period + random.randrange(0,301))
85 except: logger.log_exc()
88 if __name__ == '__main__':
89 stacklim = 512*1024 # 0.5 MiB
90 curlim = resource.getrlimit(resource.RLIMIT_STACK)[0] # soft limit
92 resource.setrlimit(resource.RLIMIT_STACK, (stacklim, stacklim))
93 # for some reason, doesn't take effect properly without the exec()
94 python = '/usr/bin/python'
95 os.execv(python, [python] + savedargv)
98 # This is for debugging purposes. Open a copy of Python and import nm
99 tools.as_daemon_thread(run)