def test_mdcreate_ok(self, mock_exec, mock_mddisplay,
                         mock_bdevs, mock_mdclean):
        # should check if md already exists
        # should check if md level is valid
        # should check if all necessary devices exist
        # should check if all devices are not parts of some md
        # should clean md metadata which possibly are on all devices
        # should run mdadm command to create new md

        mock_mddisplay.return_value = \
            [{'name': '/dev/md10', 'devices': ['/dev/fake10']},
             # should also accept devices with missing 'devices' entry
             {'name': '/dev/md11'}]
        mock_bdevs.return_value = [{'device': '/dev/fake1'},
                                   {'device': '/dev/fake2'}]

        mu.mdcreate('/dev/md0', 'mirror', ['/dev/fake1', '/dev/fake2'])
        mock_mdclean_expected_calls = [mock.call('/dev/fake1'),
                                       mock.call('/dev/fake2')]
        self.assertEqual(mock_mdclean_expected_calls,
                         mock_mdclean.call_args_list)
        mock_exec.assert_called_once_with(
            'mdadm', '--create', '--force', '/dev/md0', '-e', 'default',
            '--level=mirror',
            '--raid-devices=2', '/dev/fake1', '/dev/fake2',
            check_exit_code=[0])
 def test_mdcreate_device_clean(self, mock_mddisplay,
                                mock_bdevs, mock_mdclean, mock_exec):
     # should clean md metadata on all devices before building new md
     mock_mddisplay.return_value = []
     mock_bdevs.return_value = [{'device': '/dev/fake1'},
                                {'device': '/dev/fake2'}]
     mu.mdcreate('/dev/md0', 'mirror', ['/dev/fake1', '/dev/fake2'])
     expected_calls = [mock.call('/dev/fake1'), mock.call('/dev/fake2')]
     self.assertEqual(mock_mdclean.call_args_list, expected_calls)
 def test_mdcreate_device_clean(self, mock_mddisplay, mock_bdevs,
                                mock_mdclean, mock_exec):
     # should clean md metadata on all devices before building new md
     mock_mddisplay.return_value = []
     mock_bdevs.return_value = [{
         'device': '/dev/fake1'
     }, {
         'device': '/dev/fake2'
     }]
     mu.mdcreate('/dev/md0', 'mirror', ['/dev/fake1', '/dev/fake2'])
     expected_calls = [mock.call('/dev/fake1'), mock.call('/dev/fake2')]
     self.assertEqual(mock_mdclean.call_args_list, expected_calls)
    def test_mdcreate_ok(self, mock_exec, mock_mddisplay, mock_bdevs,
                         mock_mdclean):
        # should check if md already exists
        # should check if md level is valid
        # should check if all necessary devices exist
        # should check if all devices are not parts of some md
        # should clean md metadata which possibly are on all devices
        # should run mdadm command to create new md

        mock_mddisplay.return_value = \
            [{'name': '/dev/md10', 'devices': ['/dev/fake10']},
             # should also accept devices with missing 'devices' entry
             {'name': '/dev/md11'}]
        mock_bdevs.return_value = [{
            'device': '/dev/fake1'
        }, {
            'device': '/dev/fake2'
        }]

        mu.mdcreate('/dev/md0', 'mirror', ['/dev/fake1', '/dev/fake2'])
        mock_mdclean_expected_calls = [
            mock.call('/dev/fake1'),
            mock.call('/dev/fake2')
        ]
        self.assertEqual(mock_mdclean_expected_calls,
                         mock_mdclean.call_args_list)
        mock_exec.assert_called_once_with('mdadm',
                                          '--create',
                                          '--force',
                                          '/dev/md0',
                                          '-e',
                                          'default',
                                          '--level=mirror',
                                          '--raid-devices=2',
                                          '/dev/fake1',
                                          '/dev/fake2',
                                          check_exit_code=[0])
Exemple #5
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    def _do_partitioning(self):
        LOG.debug('--- Partitioning disks (do_partitioning) ---')

        # If disks are not wiped out at all, it is likely they contain lvm
        # and md metadata which will prevent re-creating a partition table
        # with 'device is busy' error.
        mu.mdclean_all(skip_containers=CONF.skip_md_containers)
        lu.lvremove_all()
        lu.vgremove_all()
        lu.pvremove_all()

        LOG.debug("Enabling udev's rules blacklisting")
        utils.blacklist_udev_rules(udev_rules_dir=CONF.udev_rules_dir,
                                   udev_rules_lib_dir=CONF.udev_rules_lib_dir,
                                   udev_rename_substr=CONF.udev_rename_substr,
                                   udev_empty_rule=CONF.udev_empty_rule)

        for parted in self.driver.partition_scheme.parteds:
            for prt in parted.partitions:
                # We wipe out the beginning of every new partition
                # right after creating it. It allows us to avoid possible
                # interactive dialog if some data (metadata or file system)
                # present on this new partition and it also allows udev not
                # hanging trying to parse this data.
                utils.execute('dd',
                              'if=/dev/zero',
                              'bs=1M',
                              'seek=%s' % max(prt.begin - 3, 0),
                              'count=5',
                              'of=%s' % prt.device,
                              check_exit_code=[0])
                # Also wipe out the ending of every new partition.
                # Different versions of md stores metadata in different places.
                # Adding exit code 1 to be accepted as for handling situation
                # when 'no space left on device' occurs.
                utils.execute('dd',
                              'if=/dev/zero',
                              'bs=1M',
                              'seek=%s' % max(prt.end - 3, 0),
                              'count=5',
                              'of=%s' % prt.device,
                              check_exit_code=[0, 1])

        for parted in self.driver.partition_scheme.parteds:
            pu.make_label(parted.name, parted.label)
            for prt in parted.partitions:
                pu.make_partition(prt.device, prt.begin, prt.end, prt.type)
                for flag in prt.flags:
                    pu.set_partition_flag(prt.device, prt.count, flag)
                if prt.guid:
                    pu.set_gpt_type(prt.device, prt.count, prt.guid)
                # If any partition to be created doesn't exist it's an error.
                # Probably it's again 'device or resource busy' issue.
                if not os.path.exists(prt.name):
                    raise errors.PartitionNotFoundError(
                        'Partition %s not found after creation' % prt.name)

        LOG.debug("Disabling udev's rules blacklisting")
        utils.unblacklist_udev_rules(
            udev_rules_dir=CONF.udev_rules_dir,
            udev_rename_substr=CONF.udev_rename_substr)

        # If one creates partitions with the same boundaries as last time,
        # there might be md and lvm metadata on those partitions. To prevent
        # failing of creating md and lvm devices we need to make sure
        # unused metadata are wiped out.
        mu.mdclean_all(skip_containers=CONF.skip_md_containers)
        lu.lvremove_all()
        lu.vgremove_all()
        lu.pvremove_all()

        # creating meta disks
        for md in self.driver.partition_scheme.mds:
            mu.mdcreate(md.name, md.level, md.devices, md.metadata)

        # creating physical volumes
        for pv in self.driver.partition_scheme.pvs:
            lu.pvcreate(pv.name,
                        metadatasize=pv.metadatasize,
                        metadatacopies=pv.metadatacopies)

        # creating volume groups
        for vg in self.driver.partition_scheme.vgs:
            lu.vgcreate(vg.name, *vg.pvnames)

        # creating logical volumes
        for lv in self.driver.partition_scheme.lvs:
            lu.lvcreate(lv.vgname, lv.name, lv.size)

        # making file systems
        for fs in self.driver.partition_scheme.fss:
            found_images = [
                img for img in self.driver.image_scheme.images
                if img.target_device == fs.device
            ]
            if not found_images:
                fu.make_fs(fs.type, fs.options, fs.label, fs.device)
Exemple #6
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    def _do_partitioning(self):
        LOG.debug('--- Partitioning disks (do_partitioning) ---')

        # If disks are not wiped out at all, it is likely they contain lvm
        # and md metadata which will prevent re-creating a partition table
        # with 'device is busy' error.
        mu.mdclean_all(skip_containers=CONF.skip_md_containers)
        lu.lvremove_all()
        lu.vgremove_all()
        lu.pvremove_all()

        for parted in self.driver.partition_scheme.parteds:
            for prt in parted.partitions:
                # We wipe out the beginning of every new partition
                # right after creating it. It allows us to avoid possible
                # interactive dialog if some data (metadata or file system)
                # present on this new partition and it also allows udev not
                # hanging trying to parse this data.
                utils.execute('dd', 'if=/dev/zero', 'bs=1M',
                              'seek=%s' % max(prt.begin - 3, 0), 'count=5',
                              'of=%s' % prt.device, check_exit_code=[0])
                # Also wipe out the ending of every new partition.
                # Different versions of md stores metadata in different places.
                # Adding exit code 1 to be accepted as for handling situation
                # when 'no space left on device' occurs.
                utils.execute('dd', 'if=/dev/zero', 'bs=1M',
                              'seek=%s' % max(prt.end - 3, 0), 'count=5',
                              'of=%s' % prt.device, check_exit_code=[0, 1])

        parteds = []
        parteds_with_rules = []
        for parted in self.driver.partition_scheme.parteds:
            if hu.is_multipath_device(parted.name):
                parteds_with_rules.append(parted)
            else:
                parteds.append(parted)

        utils.blacklist_udev_rules(udev_rules_dir=CONF.udev_rules_dir,
                                   udev_rules_lib_dir=CONF.udev_rules_lib_dir,
                                   udev_rename_substr=CONF.udev_rename_substr,
                                   udev_empty_rule=CONF.udev_empty_rule)

        self._make_partitions(parteds)

        utils.unblacklist_udev_rules(
            udev_rules_dir=CONF.udev_rules_dir,
            udev_rename_substr=CONF.udev_rename_substr)

        self._make_partitions(parteds_with_rules)

        # If one creates partitions with the same boundaries as last time,
        # there might be md and lvm metadata on those partitions. To prevent
        # failing of creating md and lvm devices we need to make sure
        # unused metadata are wiped out.
        mu.mdclean_all(skip_containers=CONF.skip_md_containers)
        lu.lvremove_all()
        lu.vgremove_all()
        lu.pvremove_all()

        if parteds_with_rules:
            utils.refresh_multipath()

        # creating meta disks
        for md in self.driver.partition_scheme.mds:
            mu.mdcreate(md.name, md.level, md.devices, md.metadata)

        # creating physical volumes
        for pv in self.driver.partition_scheme.pvs:
            lu.pvcreate(pv.name, metadatasize=pv.metadatasize,
                        metadatacopies=pv.metadatacopies)

        # creating volume groups
        for vg in self.driver.partition_scheme.vgs:
            lu.vgcreate(vg.name, *vg.pvnames)

        # creating logical volumes
        for lv in self.driver.partition_scheme.lvs:
            lu.lvcreate(lv.vgname, lv.name, lv.size)

        # making file systems
        for fs in self.driver.partition_scheme.fss:
            found_images = [img for img in self.driver.image_scheme.images
                            if img.target_device == fs.device]
            if not found_images:
                fu.make_fs(fs.type, fs.options, fs.label, fs.device)