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#!/usr/bin/env python
#
# Copyright (C) 2012 eNovance <licensing@enovance>
#
# Authors: Mehdi Abaakouk <sileht@sileht.net>
# Gael Lambert <gael.lambert@enovance.com>
# Jesse Andrews <anotherjesse@rackspace.com>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
#
# Plugin to monitor used size of a tenant in glance
#
# To monitor the used size of a tenant in glance do:
# E.g.
# ln -s /usr/share/munin/plugins/glance_size_ /etc/munin/plugins/glance_size_<tenant_uuid>
#
# Needs following minimal configuration in plugin-conf.d/glance:
# [glance_*]
# user glance
#
# Magic markers
#%# capabilities=autoconf
#%# family=auto
import sys
import os
try:
from sqlalchemy.orm import exc, joinedload
from glance.common.cfg import CommonConfigOpts
from glance.registry.db import models
from glance.registry.db.api import get_session, configure_db
except ImportError:
succesful_import = False
else:
succesful_import = True
def load_conf():
CONF = CommonConfigOpts(project="glance", prog="glance-registry")
CONF()
# Hide missing logger warning message
sys.stderr = open(os.devnull, 'w')
configure_db(CONF)
sys.stderr = sys.__stderr__
possible_status = [ 'queued', 'saving', 'active', 'killed', 'deleted', 'pending_delete' ]
def print_config():
print 'graph_title Glance images status'
print 'graph_vlabel images'
print 'graph_args --lower-limit 0'
print 'graph_category glance'
print 'graph_scale no'
print 'graph_info This graph show number of images by status'
for status in possible_status:
print '%s.label %s' % (status, status)
print '%s.draw LINE2' % status
print '%s.info %s image(s)' % (status, status)
def request(**kwargs):
session = get_session()
try:
query = session.query(models.Image).\
options(joinedload(models.Image.properties)).\
options(joinedload(models.Image.members))
if kwargs:
query = query.filter_by(**kwargs)
images = query.all()
except exc.NoResultFound:
return []
return images
def print_values():
images = request()
n_image_by_status = {}
for image in images:
n_image_by_status[image["status"]] = n_image_by_status.get(image["status"], 0) + 1
for status in possible_status:
print '%s.value %s' % (status, n_image_by_status.get(status, 0))
if __name__ == '__main__':
argv = sys.argv[:]
if len(argv) > 1:
if argv[1] == 'config':
print_config()
elif argv[1] == 'autoconf':
if not succesful_import:
print 'no (failed import glance and/or sqlachemy module)'
sys.exit(0)
try:
load_conf()
get_session()
except:
print 'no (failed to connect glance backend, check user)'
sys.exit(0)
print 'yes'
elif succesful_import:
load_conf()
print_values()
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