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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
#
# To show tenant name plugin must run as root
#
# Magic markers
#%# capabilities=autoconf suggest
#%# family=auto
import sys
import os
try:
from sqlalchemy.orm import joinedload
import sqlalchemy.exc
from glance.common.cfg import CommonConfigOpts
from glance.registry.db import models
from glance.registry.db.api import get_session, configure_db
from keystone.common import utils
from keystone import config
from keystone import exception
from keystone import identity
except ImportError:
succesful_import = False
else:
succesful_import = True
def get_name_from_tenant(tenant):
try:
KEYSTONE_CONF = config.CONF(config_files=[utils.find_config('keystone.conf')])
except:
# keystone configuration can not be loaded, use id as name"
return tenant
identity_api = identity.Manager()
try:
tenant_info = identity_api.get_tenant(None, tenant)
except sqlalchemy.exc.OperationalError:
# keystone database can not be connected, use id as name"
return tenant
if not tenant_info:
return tenant
else:
return tenant_info["name"]
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__
def print_config(tenant):
if tenant == "Global":
print 'graph_title Glance used size for all tenants'
print 'graph_info This graph shows the used size in glance for all tenants'
else:
print 'graph_title Glance used size for tenant %s' % get_name_from_tenant(tenant)
print 'graph_info This graph shows the used size in glance for tenant %s' % tenant
print 'graph_vlabel Bytes'
print 'graph_args --base 1024 --lower-limit 0'
print 'graph_category glance'
print '%s.label %s' % (tenant, get_name_from_tenant(tenant))
print '%s.draw LINE2' % tenant
print '%s.info %s MBytes' % (tenant, tenant)
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_suggest():
print "Global"
print "\n".join(set( image["owner"] for image in request(deleted=False) ))
def print_values(tenant):
if tenant != "Global" :
images = request(deleted=False, owner=tenant)
else:
images = request(deleted=False)
total_size = sum([ image["size"] for image in images ])
print '%s.value %s' % (tenant, total_size)
if __name__ == '__main__':
argv = sys.argv[:]
tenant = argv[0].split('glance_size_').pop() or 'Global'
if len(argv) > 1:
if argv[1] == 'config':
print_config(tenant)
elif argv[1] == 'suggest' and succesful_import:
load_conf()
print_suggest()
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(tenant)
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