0e26faeb69
Enabled H306 in tox.ini and corrected the import order. Change-Id: If77984e8c62b0ec0cfb3d068e9c1b0d4d7c3583d
134 lines
4.7 KiB
Python
134 lines
4.7 KiB
Python
# -*- encoding: utf-8 -*-
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#
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# Copyright © 2012 New Dream Network, LLC (DreamHost)
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#
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# Author: Julien Danjou <julien@danjou.info>
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""Common code for working with images
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"""
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from __future__ import absolute_import
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import itertools
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import glanceclient
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from oslo.config import cfg
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from ceilometer.openstack.common import timeutils
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from ceilometer import plugin
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from ceilometer import sample
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class _Base(plugin.PollsterBase):
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@staticmethod
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def get_glance_client(ksclient):
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endpoint = ksclient.service_catalog.url_for(
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service_type='image',
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endpoint_type=cfg.CONF.service_credentials.os_endpoint_type)
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# hard-code v1 glance API version selection while v2 API matures
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return glanceclient.Client('1', endpoint,
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token=ksclient.auth_token)
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def _get_images(self, ksclient):
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client = self.get_glance_client(ksclient)
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#TODO(eglynn): use pagination to protect against unbounded
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# memory usage
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rawImageList = list(itertools.chain(
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client.images.list(filters={"is_public": True}),
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#TODO(eglynn): extend glance API with all_tenants logic to
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# avoid second call to retrieve private images
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client.images.list(filters={"is_public": False})))
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# When retrieving images from glance, glance will check
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# whether the user is of 'admin_role' which is
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# configured in glance-api.conf. If the user is of
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# admin_role, and is querying public images(which means
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# that the 'is_public' param is set to be True),
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# glance will ignore 'is_public' parameter and returns
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# all the public images together with private images.
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# As a result, if the user/tenant has an admin role
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# for ceilometer to collect image list,
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# the _Base.iter_images method will return a image list
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# which contains duplicate images. Add the following
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# code to avoid recording down duplicate image events.
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imageIdSet = set(image.id for image in rawImageList)
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for image in rawImageList:
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if image.id in imageIdSet:
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imageIdSet -= set([image.id])
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yield image
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def _iter_images(self, ksclient, cache):
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"""Iterate over all images."""
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if 'images' not in cache:
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cache['images'] = list(self._get_images(ksclient))
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return iter(cache['images'])
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@staticmethod
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def extract_image_metadata(image):
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return dict((k, getattr(image, k))
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for k in
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[
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"status",
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"is_public",
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"name",
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"deleted",
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"container_format",
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"created_at",
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"disk_format",
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"updated_at",
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"properties",
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"min_disk",
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"protected",
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"checksum",
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"deleted_at",
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"min_ram",
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"size",
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])
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class ImagePollster(_Base):
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def get_samples(self, manager, cache):
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for image in self._iter_images(manager.keystone, cache):
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yield sample.Sample(
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name='image',
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type=sample.TYPE_GAUGE,
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unit='image',
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volume=1,
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user_id=None,
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project_id=image.owner,
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resource_id=image.id,
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timestamp=timeutils.isotime(),
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resource_metadata=self.extract_image_metadata(image),
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)
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class ImageSizePollster(_Base):
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def get_samples(self, manager, cache):
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for image in self._iter_images(manager.keystone, cache):
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yield sample.Sample(
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name='image.size',
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type=sample.TYPE_GAUGE,
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unit='B',
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volume=image.size,
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user_id=None,
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project_id=image.owner,
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resource_id=image.id,
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timestamp=timeutils.isotime(),
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resource_metadata=self.extract_image_metadata(image),
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)
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