# Copyright 2016 Canonical Ltd # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. import shutil import tempfile from mock import call, patch, MagicMock from test_utils import CharmTestCase, patch_open import lib.swift_storage_utils as swift_utils TO_PATCH = [ 'apt_update', 'apt_upgrade', 'log', 'config', 'configure_installation_source', 'mkdir', 'mount', 'check_call', 'call', 'ensure_block_device', 'clean_storage', 'is_block_device', 'is_device_mounted', 'get_os_codename_package', 'get_os_codename_install_source', 'unit_private_ip', 'service_restart', '_save_script_rc', 'lsb_release', 'is_paused', 'fstab_add', 'mount', 'is_mapped_loopback_device', ] PROC_PARTITIONS = """ major minor #blocks name 8 0 732574584 sda 8 1 102400 sda1 8 2 307097600 sda2 8 3 1 sda3 8 5 146483200 sda5 8 6 4881408 sda6 8 7 274004992 sda7 8 16 175825944 sdb 9 0 732574584 vda 10 0 732574584 vdb 10 0 732574584 vdb1 104 0 1003393784 cciss/c0d0 105 0 1003393784 cciss/c1d0 105 1 86123689 cciss/c1d0p1 252 0 20971520 dm-0 252 1 15728640 dm-1 """ SCRIPT_RC_ENV = { 'OPENSTACK_PORT_ACCOUNT': 6002, 'OPENSTACK_PORT_CONTAINER': 6001, 'OPENSTACK_PORT_OBJECT': 6000, 'OPENSTACK_SWIFT_SERVICE_ACCOUNT': 'account-server', 'OPENSTACK_SWIFT_SERVICE_CONTAINER': 'container-server', 'OPENSTACK_SWIFT_SERVICE_OBJECT': 'object-server', 'OPENSTACK_URL_ACCOUNT': 'http://10.0.0.1:6002/recon/diskusage|"mounted":true', 'OPENSTACK_URL_CONTAINER': 'http://10.0.0.1:6001/recon/diskusage|"mounted":true', 'OPENSTACK_URL_OBJECT': 'http://10.0.0.1:6000/recon/diskusage|"mounted":true' } REAL_WORLD_PARTITIONS = """ major minor #blocks name 8 0 117220824 sda 8 1 117219800 sdb 8 16 119454720 sdb1 """ FINDMNT_FOUND_TEMPLATE = """ TARGET SOURCE FSTYPE OPTIONS {} /dev/{} xfs rw,relatime,attr2,inode64,noquota """ class SwiftStorageUtilsTests(CharmTestCase): def setUp(self): super(SwiftStorageUtilsTests, self).setUp(swift_utils, TO_PATCH) self.config.side_effect = self.test_config.get def test_ensure_swift_directories(self): with patch('os.path.isdir') as isdir: isdir.return_value = False swift_utils.ensure_swift_directories() ex_dirs = [ call('/etc/swift', owner='swift', group='swift'), call('/var/cache/swift', owner='swift', group='swift'), call('/srv/node', owner='swift', group='swift') ] self.assertEqual(ex_dirs, self.mkdir.call_args_list) def test_swift_init_nonfatal(self): swift_utils.swift_init('all', 'start') self.call.assert_called_with(['swift-init', 'all', 'start']) def test_swift_init_fatal(self): swift_utils.swift_init('all', 'start', fatal=True) self.check_call.assert_called_with(['swift-init', 'all', 'start']) def test_fetch_swift_rings(self): url = 'http://someproxynode/rings' swift_utils.SWIFT_CONF_DIR = tempfile.mkdtemp() try: swift_utils.fetch_swift_rings(url) wgets = [] for s in ['account', 'object', 'container']: _c = call(['wget', '%s/%s.ring.gz' % (url, s), '--retry-connrefused', '-t', '10', '-O', '/etc/swift/%s.ring.gz' % s]) wgets.append(_c) self.assertEqual(wgets, self.check_call.call_args_list) except: shutil.rmtree(swift_utils.SWIFT_CONF_DIR) def test_determine_block_device_no_config(self): self.test_config.set('block-device', None) self.assertEqual(swift_utils.determine_block_devices(), None) def _fake_ensure(self, bdev): # /dev/vdz is a missing dev if '/dev/vdz' in bdev: return None else: return bdev.split('|').pop(0) @patch.object(swift_utils, 'ensure_block_device') def test_determine_block_device_single_dev(self, _ensure): _ensure.side_effect = self._fake_ensure bdevs = '/dev/vdb' self.test_config.set('block-device', bdevs) result = swift_utils.determine_block_devices() self.assertEqual(['/dev/vdb'], result) @patch.object(swift_utils, 'ensure_block_device') def test_determine_block_device_multi_dev(self, _ensure): _ensure.side_effect = self._fake_ensure bdevs = '/dev/vdb /dev/vdc /tmp/swift.img|1G' self.test_config.set('block-device', bdevs) result = swift_utils.determine_block_devices() ex = ['/dev/vdb', '/dev/vdc', '/tmp/swift.img'] ex = list(set(ex)) self.assertEqual(ex, result) @patch.object(swift_utils, 'ensure_block_device') def test_determine_block_device_duplicate_dev(self, _ensure): _ensure.side_effect = self._fake_ensure bdevs = '/dev/vdb /dev/vdc /dev/vdc /dev/vdb /tmp/swift.img|1G' self.test_config.set('block-device', bdevs) result = swift_utils.determine_block_devices() ex = ['/dev/vdb', '/dev/vdc', '/tmp/swift.img'] ex = list(set(ex)) self.assertEqual(ex, result) @patch.object(swift_utils, 'ensure_block_device') def test_determine_block_device_with_missing(self, _ensure): _ensure.side_effect = self._fake_ensure bdevs = '/dev/vdb /srv/swift.img|20G /dev/vdz' self.test_config.set('block-device', bdevs) result = swift_utils.determine_block_devices() ex = ['/dev/vdb', '/srv/swift.img'] self.assertEqual(ex, result) @patch.object(swift_utils, 'check_output') @patch.object(swift_utils, 'find_block_devices') @patch.object(swift_utils, 'ensure_block_device') def test_determine_block_device_guess_dev(self, _ensure, _find, _check_output): "Devices already mounted under /srv/node/ should be returned" def _findmnt(cmd): dev = cmd[1].split('/')[-1] mnt_point = '/srv/node/' + dev return FINDMNT_FOUND_TEMPLATE.format(mnt_point, dev) _check_output.side_effect = _findmnt _ensure.side_effect = self._fake_ensure self.test_config.set('block-device', 'guess') _find.return_value = ['/dev/vdb', '/dev/sdb'] result = swift_utils.determine_block_devices() self.assertTrue(_find.called) self.assertEqual(result, ['/dev/vdb', '/dev/sdb']) @patch.object(swift_utils, 'check_output') @patch.object(swift_utils, 'find_block_devices') @patch.object(swift_utils, 'ensure_block_device') def test_determine_block_device_guess_dev_not_eligable(self, _ensure, _find, _check_output): "Devices not mounted under /srv/node/ should not be returned" def _findmnt(cmd): dev = cmd[1].split('/')[-1] mnt_point = '/' return FINDMNT_FOUND_TEMPLATE.format(mnt_point, dev) _check_output.side_effect = _findmnt _ensure.side_effect = self._fake_ensure self.test_config.set('block-device', 'guess') _find.return_value = ['/dev/vdb'] result = swift_utils.determine_block_devices() self.assertTrue(_find.called) self.assertEqual(result, []) def test_mkfs_xfs(self): swift_utils.mkfs_xfs('/dev/sdb') self.check_call.assert_called_with( ['mkfs.xfs', '-i', 'size=1024', '/dev/sdb'] ) def test_mkfs_xfs_force(self): swift_utils.mkfs_xfs('/dev/sdb', force=True) self.check_call.assert_called_with( ['mkfs.xfs', '-f', '-i', 'size=1024', '/dev/sdb'] ) @patch.object(swift_utils, 'is_device_in_ring') @patch.object(swift_utils, 'clean_storage') @patch.object(swift_utils, 'mkfs_xfs') @patch.object(swift_utils, 'determine_block_devices') def test_setup_storage_no_overwrite(self, determine, mkfs, clean, mock_is_device_in_ring): mock_is_device_in_ring.return_value = False determine.return_value = ['/dev/vdb'] swift_utils.setup_storage() self.assertFalse(clean.called) calls = [call(['chown', '-R', 'swift:swift', '/srv/node/vdb']), call(['chmod', '-R', '0755', '/srv/node/vdb'])] self.check_call.assert_has_calls(calls) self.mkdir.assert_has_calls([ call('/srv/node', owner='swift', group='swift', perms=0o755), call('/srv/node/vdb', group='swift', owner='swift') ]) @patch.object(swift_utils, 'is_device_in_ring') @patch.object(swift_utils, 'clean_storage') @patch.object(swift_utils, 'mkfs_xfs') @patch.object(swift_utils, 'determine_block_devices') def test_setup_storage_overwrite(self, determine, mkfs, clean, mock_is_device_in_ring): self.test_config.set('overwrite', True) mock_is_device_in_ring.return_value = False self.is_mapped_loopback_device.return_value = None determine.return_value = ['/dev/vdb'] swift_utils.setup_storage() clean.assert_called_with('/dev/vdb') self.mkdir.assert_called_with('/srv/node/vdb', owner='swift', group='swift') self.mount.assert_called_with('/dev/vdb', '/srv/node/vdb', filesystem='xfs') self.fstab_add.assert_called_with('/dev/vdb', '/srv/node/vdb', 'xfs', options=None) calls = [call(['chown', '-R', 'swift:swift', '/srv/node/vdb']), call(['chmod', '-R', '0755', '/srv/node/vdb'])] self.check_call.assert_has_calls(calls) self.mkdir.assert_has_calls([ call('/srv/node', owner='swift', group='swift', perms=0o755), call('/srv/node/vdb', group='swift', owner='swift') ]) @patch.object(swift_utils, 'is_device_in_ring') @patch.object(swift_utils, 'determine_block_devices') def test_setup_storage_no_chmod_existing_devs(self, determine_block_devs, mock_is_device_in_ring): """ Verifies that only newly added and formatted storage devices are chmodded and chowned and not the entire /srv/node directory. Doing this will cause unnecessary write updates and for a production cluster, there could potentially be a lot of files to process. """ determine_block_devs.return_values = ['/dev/vdb', '/dev/vdc'] mock_is_device_in_ring.return_value = True swift_utils.setup_storage() self.assertEqual(self.check_call.call_count, 0) def _fake_is_device_mounted(self, device): if device in ["/dev/sda", "/dev/vda", "/dev/cciss/c0d0"]: return True else: return False def test_find_block_devices(self): self.is_block_device.return_value = True self.is_device_mounted.side_effect = self._fake_is_device_mounted with patch_open() as (_open, _file): _file.read.return_value = PROC_PARTITIONS _file.readlines = MagicMock() _file.readlines.return_value = PROC_PARTITIONS.split('\n') result = swift_utils.find_block_devices() ex = ['/dev/sdb', '/dev/vdb', '/dev/cciss/c1d0'] self.assertEqual(ex, result) def test_find_block_devices_real_world(self): self.is_block_device.return_value = True side_effect = lambda x: x in ["/dev/sdb", "/dev/sdb1"] # flake8: noqa self.is_device_mounted.side_effect = side_effect with patch_open() as (_open, _file): _file.read.return_value = REAL_WORLD_PARTITIONS _file.readlines = MagicMock() _file.readlines.return_value = REAL_WORLD_PARTITIONS.split('\n') result = swift_utils.find_block_devices() expected = ["/dev/sda"] self.assertEqual(expected, result) def test_save_script_rc(self): self.unit_private_ip.return_value = '10.0.0.1' swift_utils.save_script_rc() self._save_script_rc.assert_called_with(**SCRIPT_RC_ENV) def test_assert_charm_not_supports_ipv6(self): self.lsb_release.return_value = {'DISTRIB_ID': 'Ubuntu', 'DISTRIB_RELEASE': '12.04', 'DISTRIB_CODENAME': 'precise', 'DISTRIB_DESCRIPTION': 'Ubuntu 12.04'} self.assertRaises(Exception, swift_utils.assert_charm_supports_ipv6) def test_assert_charm_supports_ipv6(self): self.lsb_release.return_value = {'DISTRIB_ID': 'Ubuntu', 'DISTRIB_RELEASE': '14.04', 'DISTRIB_CODENAME': 'trusty', 'DISTRIB_DESCRIPTION': 'Ubuntu 14.04'} swift_utils.assert_charm_supports_ipv6() @patch('charmhelpers.contrib.openstack.templating.OSConfigRenderer') def test_register_configs_pre_install(self, renderer): self.get_os_codename_package.return_value = None swift_utils.register_configs() renderer.assert_called_with(templates_dir=swift_utils.TEMPLATES, openstack_release='essex') @patch('charmhelpers.contrib.openstack.context.WorkerConfigContext') @patch('charmhelpers.contrib.openstack.context.BindHostContext') @patch.object(swift_utils, 'SwiftStorageContext') @patch.object(swift_utils, 'RsyncContext') @patch.object(swift_utils, 'SwiftStorageServerContext') @patch('charmhelpers.contrib.openstack.templating.OSConfigRenderer') def test_register_configs_post_install(self, renderer, swift, rsync, server, bind_context, worker_context): swift.return_value = 'swift_context' rsync.return_value = 'rsync_context' server.return_value = 'swift_server_context' bind_context.return_value = 'bind_host_context' worker_context.return_value = 'worker_context' self.get_os_codename_package.return_value = 'grizzly' configs = MagicMock() configs.register = MagicMock() renderer.return_value = configs swift_utils.register_configs() renderer.assert_called_with(templates_dir=swift_utils.TEMPLATES, openstack_release='grizzly') ex = [ call('/etc/swift/swift.conf', ['swift_server_context']), call('/etc/rsync-juju.d/050-swift-storage.conf', ['rsync_context', 'swift_context']), call('/etc/swift/account-server.conf', ['swift_context', 'bind_host_context', 'worker_context']), call('/etc/swift/object-server.conf', ['swift_context', 'bind_host_context', 'worker_context']), call('/etc/swift/container-server.conf', ['swift_context', 'bind_host_context', 'worker_context']) ] self.assertEqual(ex, configs.register.call_args_list) def test_do_upgrade(self): self.is_paused.return_value = False self.test_config.set('openstack-origin', 'cloud:precise-grizzly') self.get_os_codename_install_source.return_value = 'grizzly' swift_utils.do_openstack_upgrade(MagicMock()) self.configure_installation_source.assert_called_with( 'cloud:precise-grizzly' ) dpkg_opts = [ '--option', 'Dpkg::Options::=--force-confnew', '--option', 'Dpkg::Options::=--force-confdef', ] self.assertTrue(self.apt_update.called) self.apt_upgrade.assert_called_with( options=dpkg_opts, fatal=True, dist=True ) services = (swift_utils.ACCOUNT_SVCS + swift_utils.CONTAINER_SVCS + swift_utils.OBJECT_SVCS) for service in services: self.assertIn(call(service), self.service_restart.call_args_list) @patch.object(swift_utils, "is_device_in_ring") @patch.object(swift_utils, "mkfs_xfs") @patch.object(swift_utils, "determine_block_devices") def test_setup_storage_img(self, determine, mkfs, mock_is_device_in_ring): mock_is_device_in_ring.return_value = False determine.return_value = ["/srv/test.img", ] self.is_mapped_loopback_device.return_value = "/srv/test.img" swift_utils.setup_storage() self.mount.assert_called_with( "/srv/test.img", "/srv/node/test.img", filesystem="xfs", ) self.fstab_add.assert_called_with( '/srv/test.img', '/srv/node/test.img', 'xfs', options='loop, defaults' ) self.mkdir.assert_has_calls([ call('/srv/node', owner='swift', group='swift', perms=0o755), call('/srv/node/test.img', group='swift', owner='swift') ]) @patch.object(swift_utils.subprocess, "check_output") def test_get_device_blkid(self, mock_check_output): dev = '/dev/vdb' cmd = ['blkid', '-s', 'UUID', dev] ret = '/dev/vdb: UUID="808bc298-0609-4619-aaef-ed7a5ab0ebb7" \n' mock_check_output.return_value = ret uuid = swift_utils.get_device_blkid(dev) self.assertEqual(uuid, "808bc298-0609-4619-aaef-ed7a5ab0ebb7") mock_check_output.assert_called_with(cmd) def fake_check_output(*args, **kwargs): raise swift_utils.CalledProcessError('a', 'b', 'c') mock_check_output.side_effect = fake_check_output self.assertIsNone(swift_utils.get_device_blkid(dev))