be8c4e00a9
Adds multi-backend support to Glance. Currently supported backends are local, Swift and RBD. The order of preference for default backend is RBD --> Swift --> Local. Backend can be selected explicitly by the operator when creating an image. Change-Id: I78ecad0e8e12fc1ff7d716b7e43d84ca4d5b0ee1
374 lines
15 KiB
Python
374 lines
15 KiB
Python
# Copyright 2016 Canonical Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from mock import patch, MagicMock
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import glance_contexts as contexts
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from test_utils import (
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CharmTestCase
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)
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TO_PATCH = [
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"config",
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'relation_ids',
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'is_relation_made',
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'service_name',
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'determine_apache_port',
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'determine_api_port',
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'os_release',
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]
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class TestGlanceContexts(CharmTestCase):
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def setUp(self):
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super(TestGlanceContexts, self).setUp(contexts, TO_PATCH)
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from charmhelpers.core.hookenv import cache
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self.cache = cache
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cache.clear()
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def test_glance_context(self):
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config = {
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'disk-formats': 'dfmt1',
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'container-formats': '',
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'filesystem-store-datadir': "/var/lib/glance/images/",
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'image-size-cap': ''}
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self.config.side_effect = lambda x: config[x]
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self.assertEqual(contexts.GlanceContext()(), {
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'disk_formats': 'dfmt1',
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'filesystem_store_datadir': "/var/lib/glance/images/"})
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def test_glance_context_container_fmt(self):
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config = {
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'disk-formats': 'dfmt1',
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'container-formats': 'cmft1',
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'filesystem-store-datadir': "/var/lib/glance/images/",
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'image-size-cap': ''}
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self.config.side_effect = lambda x: config[x]
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self.assertEqual(contexts.GlanceContext()(),
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{'disk_formats': 'dfmt1',
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'filesystem_store_datadir':
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"/var/lib/glance/images/",
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'container_formats': 'cmft1'})
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def test_glance_context_image_size_cap(self):
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config = {
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'disk-formats': 'dfmt1',
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'container-formats': 'cmft1',
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'filesystem-store-datadir': "/var/lib/glance/images/",
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'image-size-cap': '1TB'}
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self.config.side_effect = lambda x: config[x]
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self.assertEqual(contexts.GlanceContext()(),
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{'disk_formats': 'dfmt1',
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'container_formats': 'cmft1',
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'filesystem_store_datadir':
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"/var/lib/glance/images/",
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'image_size_cap': 1099511627776})
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def test_swift_not_related(self):
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self.relation_ids.return_value = []
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self.assertEqual(contexts.ObjectStoreContext()(), {})
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def test_swift_related(self):
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self.relation_ids.return_value = ['object-store:0']
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self.assertEqual(contexts.ObjectStoreContext()(),
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{'swift_store': True})
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def test_cinder_not_related(self):
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self.relation_ids.return_value = []
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self.assertEqual(contexts.CinderStoreContext()(), {})
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def test_cinder_related(self):
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self.relation_ids.return_value = ['cinder-volume-service:0']
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self.assertEqual(contexts.CinderStoreContext()(),
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{'cinder_store': True})
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def test_cinder_related_via_subordinate(self):
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self.relation_ids.return_value = ['cinder-backend:0']
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self.assertEqual(contexts.CinderStoreContext()(),
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{'cinder_store': True})
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def test_ceph_not_related(self):
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self.is_relation_made.return_value = False
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self.assertEqual(contexts.CephGlanceContext()(), {})
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def test_ceph_related(self):
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self.is_relation_made.return_value = True
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service = 'glance'
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self.service_name.return_value = service
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conf_dict = {
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'rbd-pool-name': None,
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'expose-image-locations': True,
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'pool-type': 'replicated',
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}
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self.config.side_effect = lambda x: conf_dict.get(x)
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self.assertEqual(
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contexts.CephGlanceContext()(),
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{'rbd_pool': service,
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'rbd_user': service,
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'expose_image_locations': True})
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self.config.assert_called_with('expose-image-locations')
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# Check user supplied pool name:
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conf_dict = {
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'rbd-pool-name': 'mypoolname',
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'expose-image-locations': True,
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'pool-type': 'replicated',
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}
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self.assertEqual(
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contexts.CephGlanceContext()(),
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{'rbd_pool': 'mypoolname',
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'rbd_user': service,
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'expose_image_locations': True})
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# Check erasure-coded pool type
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conf_dict = {
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'rbd-pool-name': None,
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'expose-image-locations': True,
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'pool-type': 'erasure-coded',
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'ec-rbd-metadata-pool': None,
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}
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self.assertEqual(
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contexts.CephGlanceContext()(),
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{'rbd_pool': "{}-metadata".format(service),
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'rbd_user': service,
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'expose_image_locations': True})
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# Ensure rbd-pool-name used for metadata pool name
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conf_dict = {
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'rbd-pool-name': 'foobar',
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'expose-image-locations': True,
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'pool-type': 'erasure-coded',
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'ec-rbd-metadata-pool': None,
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}
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self.assertEqual(
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contexts.CephGlanceContext()(),
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{'rbd_pool': "foobar-metadata",
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'rbd_user': service,
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'expose_image_locations': True})
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# Ensure ec-rbd-metadata-pool overrides everything
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conf_dict = {
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'rbd-pool-name': 'foobar',
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'expose-image-locations': True,
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'pool-type': 'erasure-coded',
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'ec-rbd-metadata-pool': 'another-metadata',
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}
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self.assertEqual(
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contexts.CephGlanceContext()(),
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{'rbd_pool': "another-metadata",
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'rbd_user': service,
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'expose_image_locations': True})
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def test_multistore_below_mitaka(self):
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self.os_release.return_value = 'liberty'
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self.relation_ids.return_value = ['random_rid']
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self.assertEqual(contexts.MultiStoreContext()(),
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{'known_stores': "glance.store.filesystem.Store,"
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"glance.store.http.Store,"
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"glance.store.rbd.Store,"
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"glance.store.swift.Store"})
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def test_multistore_for_mitaka_and_upper(self):
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self.os_release.return_value = 'mitaka'
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self.relation_ids.return_value = ['random_rid']
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self.assertEqual(contexts.MultiStoreContext()(),
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{'known_stores': "glance.store.cinder.Store,"
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"glance.store.filesystem.Store,"
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"glance.store.http.Store,"
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"glance.store.rbd.Store,"
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"glance.store.swift.Store"})
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def test_multistore_defaults(self):
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self.relation_ids.return_value = []
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self.assertEqual(contexts.MultiStoreContext()(),
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{'known_stores': "glance.store.filesystem.Store,"
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"glance.store.http.Store"})
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def test_multi_backend_no_relations_no_data_dir(self):
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self.relation_ids.return_value = []
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self.is_relation_made.return_value = False
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data_dir = ''
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conf_dict = {
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'filesystem-store-datadir': data_dir,
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}
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self.config.side_effect = lambda x: conf_dict.get(x)
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self.assertEqual(
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contexts.MultiBackendContext()(),
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{
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'enabled_backend_configs': {},
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'enabled_backends': None,
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'default_store_backend': None,
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})
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def test_multi_backend_no_relations(self):
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self.relation_ids.return_value = []
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self.is_relation_made.return_value = False
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data_dir = '/some/data/dir'
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conf_dict = {
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'filesystem-store-datadir': data_dir,
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}
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self.config.side_effect = lambda x: conf_dict.get(x)
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self.assertEqual(
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contexts.MultiBackendContext()(),
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{
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'enabled_backend_configs': {
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'local': {
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'filesystem_store_datadir': data_dir,
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'store_description': 'Local filesystem store',
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}
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},
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'enabled_backends': 'local:file',
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'default_store_backend': 'local',
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})
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def test_multi_backend_with_swift(self):
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self.maxDiff = None
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self.relation_ids.return_value = ["object-store:0"]
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self.is_relation_made.return_value = False
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data_dir = '/some/data/dir'
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conf_dict = {
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'filesystem-store-datadir': data_dir,
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}
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swift_conf = "/etc/glance/glance-swift.conf"
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self.config.side_effect = lambda x: conf_dict.get(x)
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self.assertEqual(
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contexts.MultiBackendContext()(),
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{
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'enabled_backend_configs': {
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'local': {
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'filesystem_store_datadir': data_dir,
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'store_description': 'Local filesystem store',
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},
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'swift': {
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"default_swift_reference": "swift",
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"swift_store_config_file": swift_conf,
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"swift_store_create_container_on_put": "true",
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}
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},
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'enabled_backends': 'local:file, swift:swift',
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'default_store_backend': 'swift',
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})
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def test_multi_backend_with_ceph_no_swift(self):
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self.maxDiff = None
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self.relation_ids.return_value = []
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self.is_relation_made.return_value = True
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service = 'glance'
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self.service_name.return_value = service
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data_dir = '/some/data/dir'
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conf_dict = {
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'filesystem-store-datadir': data_dir,
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'rbd-pool-name': 'mypool',
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}
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self.config.side_effect = lambda x: conf_dict.get(x)
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self.assertEqual(
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contexts.MultiBackendContext()(),
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{
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'enabled_backend_configs': {
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'local': {
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'filesystem_store_datadir': data_dir,
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'store_description': 'Local filesystem store',
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},
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'ceph': {
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"rbd_store_chunk_size": 8,
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"rbd_store_pool": 'mypool',
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"rbd_store_user": service,
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"rados_connect_timeout": 0,
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"rbd_store_ceph_conf": "/etc/ceph/ceph.conf",
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}
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},
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'enabled_backends': 'local:file, ceph:rbd',
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'default_store_backend': 'ceph',
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})
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def test_multi_backend_with_ceph_and_swift(self):
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self.maxDiff = None
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self.relation_ids.return_value = ["object-store:0"]
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self.is_relation_made.return_value = True
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service = 'glance'
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self.service_name.return_value = service
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data_dir = '/some/data/dir'
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swift_conf = "/etc/glance/glance-swift.conf"
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conf_dict = {
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'filesystem-store-datadir': data_dir,
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'rbd-pool-name': 'mypool',
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}
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self.config.side_effect = lambda x: conf_dict.get(x)
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self.assertEqual(
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contexts.MultiBackendContext()(),
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{
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'enabled_backend_configs': {
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'local': {
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'filesystem_store_datadir': data_dir,
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'store_description': 'Local filesystem store',
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},
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'ceph': {
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"rbd_store_chunk_size": 8,
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"rbd_store_pool": 'mypool',
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"rbd_store_user": service,
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"rados_connect_timeout": 0,
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"rbd_store_ceph_conf": "/etc/ceph/ceph.conf",
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},
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'swift': {
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"default_swift_reference": "swift",
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"swift_store_config_file": swift_conf,
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"swift_store_create_container_on_put": "true",
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}
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},
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'enabled_backends': 'local:file, ceph:rbd, swift:swift',
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'default_store_backend': 'ceph',
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})
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@patch('charmhelpers.contrib.openstack.context.relation_ids')
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@patch('charmhelpers.contrib.hahelpers.cluster.config_get')
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@patch('charmhelpers.contrib.openstack.context.https')
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def test_apache_ssl_context_service_enabled(self, mock_https,
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mock_config,
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mock_relation_ids):
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mock_relation_ids.return_value = []
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mock_config.return_value = 'true'
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mock_https.return_value = True
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ctxt = contexts.ApacheSSLContext()
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ctxt.enable_modules = MagicMock()
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ctxt.configure_cert = MagicMock()
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ctxt.configure_ca = MagicMock()
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ctxt.canonical_names = MagicMock()
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ctxt.get_network_addresses = MagicMock()
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ctxt.get_network_addresses.return_value = [('1.2.3.4', '1.2.3.4')]
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self.assertEqual(ctxt(), {'endpoints': [('1.2.3.4', '1.2.3.4',
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9282, 9272)],
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'ext_ports': [9282],
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'namespace': 'glance'})
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@patch('charmhelpers.contrib.openstack.context.config')
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@patch("subprocess.check_output")
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def test_glance_ipv6_context_service_enabled(self, mock_subprocess,
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mock_config):
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self.config.return_value = True
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mock_config.return_value = True
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mock_subprocess.return_value = 'true'
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ctxt = contexts.GlanceIPv6Context()
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self.assertEqual(ctxt(), {'bind_host': '::',
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'registry_host': '[::]'})
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@patch('charmhelpers.contrib.openstack.context.config')
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@patch("subprocess.check_output")
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def test_glance_ipv6_context_service_disabled(self, mock_subprocess,
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mock_config):
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self.config.return_value = False
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mock_config.return_value = False
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mock_subprocess.return_value = 'false'
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ctxt = contexts.GlanceIPv6Context()
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self.assertEqual(ctxt(), {'bind_host': '0.0.0.0',
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'registry_host': '0.0.0.0'})
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