152 lines
4.0 KiB
Python
Executable File
152 lines
4.0 KiB
Python
Executable File
#!/usr/bin/env python
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# coding: utf-8
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import os,sys,datetime,argparse,threading,time,Queue
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from commands import getstatusoutput
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parser = argparse.ArgumentParser(description = 'Ping hosts from mdb')
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parser.add_argument('-t', '--type', default='all',\
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help="Which type of host to operate on")
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parser.add_argument('-d', '--debug', action='store_true',\
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help="Turn on debugging")
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parser.add_argument('--show-types', dest='show_types', action='store_true',\
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help='Show available host types')
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parser.add_argument('--num-threads', dest='num_threads', type=int, default=1,\
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help='Number of threads used for pinging hosts')
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parser.add_argument('--num-pings', dest='num_pings', type=int, default=5,\
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help='Number of ping requests to each host. More requests gives a more accurate average calculation.')
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parser.add_argument('--rrd-path', dest='rrd_path', required=True,\
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help='Specify the path to the rrd files')
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args = parser.parse_args()
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from django.core.management import setup_environ
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from django.core.mail import mail_admins
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from dns_mdb import settings
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setup_environ(settings)
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from mdb.models import *
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PING_CMD='ping -W 1 -c %d -n -q %s | grep rtt | cut -d " " -f4'
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queue = Queue.Queue()
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RRD_CREATE = "%s " \
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"DS:ttl:GAUGE:600:U:U "\
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"RRA:AVERAGE:0.5:1:576 "\
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"RRA:AVERAGE:0.5:6:336 "\
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"RRA:AVERAGE:0.5:72:124 "\
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"RRA:AVERAGE:0.5:288:365"
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RRD_UPDATE = "%s --template rtt N:%s"
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RRD_DIR = args.rrd_path
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RRDTOOL = "/usr/bin/rrdtool"
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class RrdService():
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def log(self, host, interface, avg_ping):
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rrd = self.get_rrd(host, interface)
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self.update_rrd(rrd, avg_ping)
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def get_rrd(self, host, interface):
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return "%s/%s_%s.rrd" % ( RRD_DIR, host.id,\
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interface.id)
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def update_rrd(self, rrd, avg_ping):
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self.create_rrd(rrd)
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self.rrd_exec("update", RRD_UPDATE % (rrd, avg_ping))
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def create_rrd(self, rrd):
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if os.path.isfile(rrd):
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return True
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if args.debug:
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print "Creating rrd: " + rrd
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if not self.rrd_exec("create", RRD_CREATE % rrd):
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if args.debug:
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print "Could not create RRD database."
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return False
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return True
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def rrd_exec(self, function, rrd_cmd):
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cmd = "%s %s %s" % (RRDTOOL, function, rrd_cmd)
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if args.debug:
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print "RRD_EXEC (%s)" % cmd
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if os.system(cmd) != 0:
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return False
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else:
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return True
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class PingThread(threading.Thread):
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""" Threaded ping """
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def __init__(self, host_queue, rrd_service):
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threading.Thread.__init__(self)
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self.queue = queue
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self.rrd_service = rrd_service
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def run(self):
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while True:
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host = self.queue.get()
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self.do_ping_host(host)
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self.queue.task_done()
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def do_ping_host(self, host):
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interfaces = host.interface_set.all()
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for interface in interfaces:
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self.do_ping_interface(interface, host)
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def do_ping_interface(self, interface, host):
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res = self.do_ping_ipaddr(interface.ip4address.address)
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if res == None:
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if args.debug:
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print "%s (%s/%s) : fail " % (host, \
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interface.name, interface.ip4address.address)
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return
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if args.debug:
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print "%s (%s/%s) : %s" % (host, interface.name, \
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interface.ip4address.address, res)
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self.rrd_service.log(host,interface, res[1])
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def do_ping_ipaddr(self, ipaddr):
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status, output = getstatusoutput(PING_CMD % (args.num_pings,ipaddr))
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if status == 0 and len(output) > 0:
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return output.split("/")
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else:
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return None
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def show_host_types():
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types = HostType.objects.all()
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for t in types:
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print "%s (%s)" % (t.host_type, t.description)
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if args.show_types:
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show_host_types()
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sys.exit(0)
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if args.type == "all":
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hosts = Host.objects.all()
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else:
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hosts = Host.objects.filter(host_type__host_type = args.type)
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rrd_service = RrdService()
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# start num_threads threads for pinging
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for i in xrange(args.num_threads):
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t = PingThread(queue, rrd_service)
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t.setDaemon(True)
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t.start()
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if args.debug:
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print "Pinging %d hosts using %d threads." % (len(hosts), args.num_threads)
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# Add all hosts to the queue. Ping threads
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# will pick hosts from this queue.
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for host in hosts:
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queue.put(host)
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# Wait for all threads to finish, eg. queue is empty.
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queue.join()
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sys.exit(0)
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