15 from config import Config
16 from plcapi import PLCAPI
21 savedargv = sys.argv[:]
23 known_modules=['proper', 'conf_files', 'sm', 'bwmon']
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 parser.add_option('-r', '--random', action='store', dest='random', default=301, help='Range for additional random polling interval (sec)')
32 parser.add_option('-v', '--verbose', action='store_true', dest='verbose', default=False, help='more verbose log')
33 parser.add_option('-m', '--module', action='store', dest='module', default='', help='run a single module among '+' '.join(known_modules))
34 (options, args) = parser.parse_args()
39 try: data = plc.GetSlivers()
40 except: logger.log_exc()
42 logger.log_slivers(data)
43 # Set i2 ip list for nodes in I2 nodegroup.
44 try: net.GetSlivers(plc, data)
45 except: logger.log_exc()
46 # All other callback modules
47 for module in modules:
49 callback = getattr(module, 'GetSlivers')
51 except: logger.log_exc()
55 if options.daemon: tools.daemon()
59 logger.set_level(logger.LOG_VERBOSE)
61 # Load /etc/planetlab/plc_config
62 config = Config(options.config)
65 other_pid = tools.pid_file()
67 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)
70 print "Warning while writing PID file:", err
72 # Load and start modules
74 assert options.module in known_modules
75 running_modules=[options.module]
76 logger.verbose('Running single module %s'%options.module)
78 running_modules=known_modules
79 for module in running_modules:
81 m = __import__(module)
82 m.start(options, config)
84 except ImportError, err:
85 print "Warning while loading module %s:" % module, err
87 # Load /etc/planetlab/session
88 if os.path.exists(options.session):
89 session = file(options.session).read().strip()
91 session = options.session
93 # Initialize XML-RPC client
94 iperiod=int(options.period)
95 irandom=int(options.random)
96 plc = PLCAPI(config.plc_api_uri, config.cacert, session, timeout=iperiod/2)
100 logger.verbose('mainloop - nm:getSlivers - period=%d random=%d'%(iperiod,irandom))
102 delay=iperiod + random.randrange(0,irandom)
103 logger.verbose('mainloop - sleeping for %d s'%delay)
105 except: logger.log_exc()
108 if __name__ == '__main__':
109 logger.log("Entering nm.py "+id)
110 stacklim = 512*1024 # 0.5 MiB
111 curlim = resource.getrlimit(resource.RLIMIT_STACK)[0] # soft limit
112 if curlim > stacklim:
113 resource.setrlimit(resource.RLIMIT_STACK, (stacklim, stacklim))
114 # for some reason, doesn't take effect properly without the exec()
115 python = '/usr/bin/python'
116 os.execv(python, [python] + savedargv)
119 # This is for debugging purposes. Open a copy of Python and import nm
120 tools.as_daemon_thread(run)