143 lines
3.9 KiB
Python
Executable File
143 lines
3.9 KiB
Python
Executable File
#!/usr/bin/env python
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#
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# Plugin to monitor used size of a tenant in glance
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#
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# To monitor the used size of a tenant in glance do:
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# E.g.
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# ln -s /usr/share/munin/plugins/glance_size_ /etc/munin/plugins/glance_size_<tenant_uuid>
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#
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# Needs following minimal configuration in plugin-conf.d/glance:
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# [glance_*]
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# user glance
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#
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# To show tenant name plugin must run as root
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#
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# Magic markers
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#%# capabilities=autoconf suggest
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#%# family=auto
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import sys
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import os
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try:
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from sqlalchemy.orm import joinedload
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import sqlalchemy.exc
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from glance.common.cfg import CommonConfigOpts
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from glance.registry.db import models
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from glance.registry.db.api import get_session, configure_db
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from keystone.common import utils
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from keystone import config
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from keystone import exception
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from keystone import identity
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except ImportError:
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successful_import = False
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else:
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successful_import = True
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def get_name_from_tenant(tenant):
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try:
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KEYSTONE_CONF = config.CONF(config_files=[utils.find_config('keystone.conf')])
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except:
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# keystone configuration can not be loaded, use id as name"
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return tenant
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identity_api = identity.Manager()
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try:
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tenant_info = identity_api.get_tenant(None, tenant)
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except sqlalchemy.exc.OperationalError:
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# keystone database can not be connected, use id as name"
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return tenant
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if not tenant_info:
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return tenant
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else:
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return tenant_info["name"]
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def load_conf():
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CONF = CommonConfigOpts(project="glance", prog="glance-registry")
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CONF()
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# Hide missing logger warning message
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sys.stderr = open(os.devnull, 'w')
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configure_db(CONF)
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sys.stderr = sys.__stderr__
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def print_config(tenant):
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if tenant == "Global":
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print 'graph_title Glance used size for all tenants'
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print 'graph_info This graph shows the used size in glance for all tenants'
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else:
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print 'graph_title Glance used size for tenant %s' % get_name_from_tenant(tenant)
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print 'graph_info This graph shows the used size in glance for tenant %s' % tenant
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print 'graph_vlabel Bytes'
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print 'graph_args --base 1024 --lower-limit 0'
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print 'graph_category glance'
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print '%s.label %s' % (tenant, get_name_from_tenant(tenant))
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print '%s.draw LINE2' % tenant
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print '%s.info %s MBytes' % (tenant, tenant)
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def request(**kwargs):
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session = get_session()
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try:
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query = session.query(models.Image).\
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options(joinedload(models.Image.properties)).\
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options(joinedload(models.Image.members))
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if kwargs:
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query = query.filter_by(**kwargs)
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images = query.all()
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except exc.NoResultFound:
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return []
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return images
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def print_suggest():
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print "Global"
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print "\n".join(set( image["owner"] for image in request(deleted=False) ))
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def print_values(tenant):
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if tenant != "Global" :
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images = request(deleted=False, owner=tenant)
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else:
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images = request(deleted=False)
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total_size = sum([ image["size"] for image in images ])
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print '%s.value %s' % (tenant, total_size)
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if __name__ == '__main__':
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argv = sys.argv[:]
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tenant = argv[0].split('glance_size_').pop() or 'Global'
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if len(argv) > 1:
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if argv[1] == 'config':
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print_config(tenant)
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elif argv[1] == 'suggest' and successful_import:
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load_conf()
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print_suggest()
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elif argv[1] == 'autoconf':
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if not successful_import:
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print 'no (failed import glance and/or sqlachemy module)'
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sys.exit(0)
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try:
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load_conf()
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get_session()
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except:
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print 'no (failed to connect glance backend, check user)'
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sys.exit(0)
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print 'yes'
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elif successful_import:
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load_conf()
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print_values(tenant)
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