--- /dev/null
+#!/usr/bin/env python
+
+#
+# This script is a nagios plugin that allows to check for a host
+#
+
+import sys
+import getopt
+
+import nagios
+import comon_query
+import comon_sensor
+
+command=sys.argv[0]
+revision="$Revision: 1.3 $"
+
+#nagios_plugins_dir="/usr/lib/nagios/plugins"
+
+
+options = 'vhnk:t:'
+long_opts = [ 'version' , 'help', 'no-comon' , 'key=', 'time-out=' ]
+
+
+usage_string="""Usage : %s [-n] [-k private_key] nodename
+Revision %s
+This nagios plugin checks for a given (planetlab) host
+The regular approach is to
+* First try to reach the comon query interface.
+ default host is %s
+ this can be overridden with the --host option (NIY)
+TODO : prevent this stage if a 'none' host is provided
+* If we cannot conclude from this, we then try and reach
+ the comon sensor on the node itself on port %d,
+TODO : skip on -n option
+* Then, if an ssh private key is provided with the -k option,
+ we try to enter the node as root and check that
+ the pl_conf slice is up and running on the node
+TODO : do this only of the -k option is provided
+* if none of this is conclusive we just check for the ssh server on the node
+ with the standard ssh plugin
+TODO : probably this should be left to the nagios config
+"""%(command,revision,comon_query.SERVER,comon_sensor.PORT)
+
+def usage ():
+ print usage_string
+ sys.exit(1)
+
+####################
+def main ():
+
+ try:
+ opts,args = getopt.getopt(sys.argv[1:], options, long_opts)
+ except getopt.GetoptError:
+ print "Unknown option"
+ usage()
+
+ opt_comon = True
+ opt_key = None
+ opt_timeout = 10
+
+ for o,a in opts:
+ if o in ['-v','--version']:
+ print command,'--',revision
+ sys.exit(3)
+ elif o in ['-h','--help']:
+ usage()
+ elif o in ['-n','--no-comon']:
+ opt_comon = False
+ elif o in ['-k','--key']:
+ opt_key=a
+ elif o in ['-t','--time-out']:
+ opt_timeout=int(a)
+ else:
+ print "Unknown option",o
+ usage()
+
+ if not len(args) == 1:
+ usage()
+ nodename = args[0]
+
+ status = nagios.UNKNOWN
+
+ status = comon_query.check(nodename)
+ if status != nagios.UNKNOWN:
+ return status
+
+ if opt_comon:
+ status = comon_sensor.check(nodename,opt_timeout)
+
+# print "status",status
+ return status
+
+
+if __name__=='__main__':
+ sys.exit(main())
+
+