+#!/usr/bin/python
+
"""Node Manager"""
import optparse
import time
import xmlrpclib
+import socket
+import os
-import conf_files
import logger
-import sm
import tools
+from config import Config
+from plcapi import PLCAPI
parser = optparse.OptionParser()
parser.add_option('-d', '--daemon', action='store_true', dest='daemon', default=False, help='run daemonized')
parser.add_option('-s', '--startup', action='store_true', dest='startup', default=False, help='run all sliver startup scripts')
+parser.add_option('-f', '--config', action='store', dest='config', default='/etc/planetlab/plc_config', help='PLC configuration file')
+parser.add_option('-k', '--session', action='store', dest='session', default='/etc/planetlab/session', help='API session key (or file)')
(options, args) = parser.parse_args()
# XXX - awaiting a real implementation
data = []
modules = []
-def GetSlivers():
+def GetSlivers(plc):
+ # XXX Set a socket timeout, maybe in plcapi.PLCAPI
+ # socket.setdefaulttimeout(timeout)
+ data = plc.GetSlivers()
+
for mod in modules: mod.GetSlivers_callback(data)
def start_and_register_callback(mod):
if options.daemon: tools.daemon()
- other_pid = tools.pid_file()
- if other_pid != None:
- 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)
- return
+ try:
+ other_pid = tools.pid_file()
+ if other_pid != None:
+ 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)
+ return
+ except OSError, err:
+ print "Warning while writing PID file:", err
+
+ try:
+ import sm
+ start_and_register_callback(sm)
+ import conf_files
+ start_and_register_callback(conf_files)
+ except ImportError, err:
+ print "Warning while registering callbacks:", err
+
+ # Load /etc/planetlab/plc_config
+ config = Config(options.config)
+
+ # Load /etc/planetlab/session
+ if os.path.exists(options.session):
+ session = file(options.session).read().strip()
+ else:
+ session = options.session
+
+ # Initialize XML-RPC client
+ plc = PLCAPI(config.plc_api_uri, session)
- start_and_register_callback(sm)
- start_and_register_callback(conf_files)
while True:
- try: GetSlivers()
+ try: GetSlivers(plc)
except: logger.log_exc()
time.sleep(10)
except: logger.log_exc()