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contrib-munin/plugins/glance/glance_size_
2018-03-27 04:30:53 +02:00

142 lines
3.8 KiB
Python
Executable File

#!/usr/bin/env python
#
# 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, exception, identity
except ImportError:
successful_import = False
else:
successful_import = True
def get_name_from_tenant(tenant):
try:
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():
loaded_config = CommonConfigOpts(project="glance", prog="glance-registry")
loaded_config()
# Hide missing logger warning message
sys.stderr = open(os.devnull, 'w')
configure_db(loaded_config)
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 cloud')
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 exception.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 successful_import:
load_conf()
print_suggest()
elif argv[1] == 'autoconf':
if not successful_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 successful_import:
load_conf()
print_values(tenant)