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#!/usr/bin/env python
#
# Plugin to monitor status of Floating IPs in Nova
#
# To monitor the total number of VMs launched since installing openstack
# E.g.
# ln -s /usr/share/munin/plugins/nova_vms_launched /etc/munin/plugins/nova_floating_ips
#
# Needs following minimal configuration in plugin-conf.d/nova:
# [nova_*]
# user nova
#
# Magic markers
#%# capabilities=autoconf
#%# family=nova
from nova import context
from nova import db
from nova import flags
from nova import utils
from nova.db.sqlalchemy.session import get_session
import sys
def print_config():
global states
print 'graph_title Nova VMs Launched'
print 'graph_vlabel VMs'
print 'graph_args --base 1000 --lower-limit 0'
print 'graph_category nova'
print 'graph_scale no'
print 'graph_info This graph shows the number of VMs launched since the beginning of time'
print 'vms.label servers'
print 'vms.draw LINE2'
def get_status():
connection = get_session().connection()
row = connection.execute("select count(*) from instances").fetchall()[0]
return row[0]
def print_values():
qty = get_status()
print "vms.value %s" % qty
if __name__ == '__main__':
if len(sys.argv) > 1:
if sys.argv[1] == "config":
print_config()
elif sys.argv[1]=="autoconf" :
print "yes"
else:
utils.default_flagfile()
flags.FLAGS(sys.argv)
print_values()