Add HCTL to BlockDevices
This patch is adding a "hctl" attribute to the BlockDevices. HCTL stands for: Host, Channel, Target and Lun, which is basically the SCSI address. The idea behind this patch is to allow root device hints to find the disk for deployment based on the SCSI address. Partial-Bug: #1648036 Change-Id: If8897c68609e0df0378ee919b803ca5e497def02
This commit is contained in:
Lucas Alvares Gomes
parent
92ced38bfe
commit
b272426562
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@ -114,7 +114,7 @@ fields:
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``disks``
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list of disk block devices with fields: ``name``, ``model``,
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``size`` (in bytes), ``rotational`` (boolean), ``wwn``, ``serial``,
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``vendor``, ``wwn_with_extension``, ``wwn_vendor_extension``.
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``vendor``, ``wwn_with_extension``, ``wwn_vendor_extension``, ``hctl``.
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``interfaces``
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list of network interfaces with fields: ``name``, ``mac_address``,
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@ -154,6 +154,16 @@ def list_all_block_devices(block_type='disk'):
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('wwn_with_extension', 'WWN_WITH_EXTENSION'),
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('wwn_vendor_extension', 'WWN_VENDOR_EXTENSION')]}
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# NOTE(lucasagomes): Newer versions of the lsblk tool supports
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# HCTL as a parameter but let's get it from sysfs to avoid breaking
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# old distros.
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try:
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extra['hctl'] = os.listdir(
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'/sys/block/%s/device/scsi_device' % device['KNAME'])[0]
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except (OSError, IndexError):
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LOG.warning('Could not find the SCSI address (HCTL) for '
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'device %s. Skipping', name)
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devices.append(BlockDevice(name=name,
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model=device['MODEL'],
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size=int(device['SIZE']),
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@ -188,11 +198,11 @@ class HardwareType(object):
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class BlockDevice(encoding.SerializableComparable):
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serializable_fields = ('name', 'model', 'size', 'rotational',
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'wwn', 'serial', 'vendor', 'wwn_with_extension',
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'wwn_vendor_extension')
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'wwn_vendor_extension', 'hctl')
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def __init__(self, name, model, size, rotational, wwn=None, serial=None,
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vendor=None, wwn_with_extension=None,
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wwn_vendor_extension=None):
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wwn_vendor_extension=None, hctl=None):
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self.name = name
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self.model = model
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self.size = size
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@ -202,6 +212,7 @@ class BlockDevice(encoding.SerializableComparable):
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self.vendor = vendor
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self.wwn_with_extension = wwn_with_extension
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self.wwn_vendor_extension = wwn_vendor_extension
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self.hctl = hctl
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class NetworkInterface(encoding.SerializableComparable):
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@ -734,11 +734,13 @@ class TestGenericHardwareManager(test_base.BaseTestCase):
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list_mock.assert_called_once_with()
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@mock.patch.object(os, 'listdir')
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@mock.patch.object(hardware, '_get_device_info')
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@mock.patch.object(pyudev.Device, 'from_device_file')
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@mock.patch.object(utils, 'execute')
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def test_list_all_block_device(self, mocked_execute, mocked_udev,
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mocked_dev_vendor):
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mocked_dev_vendor, mock_listdir):
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mock_listdir.return_value = ['1:0:0:0']
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mocked_execute.return_value = (BLK_DEVICE_TEMPLATE, '')
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mocked_udev.side_effect = pyudev.DeviceNotFoundError()
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mocked_dev_vendor.return_value = 'Super Vendor'
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@ -748,31 +750,38 @@ class TestGenericHardwareManager(test_base.BaseTestCase):
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model='TinyUSB Drive',
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size=3116853504,
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rotational=False,
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vendor='Super Vendor'),
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vendor='Super Vendor',
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hctl='1:0:0:0'),
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hardware.BlockDevice(name='/dev/sdb',
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model='Fastable SD131 7',
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size=10737418240,
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rotational=False,
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vendor='Super Vendor'),
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vendor='Super Vendor',
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hctl='1:0:0:0'),
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hardware.BlockDevice(name='/dev/sdc',
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model='NWD-BLP4-1600',
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size=1765517033472,
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rotational=False,
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vendor='Super Vendor'),
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vendor='Super Vendor',
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hctl='1:0:0:0'),
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hardware.BlockDevice(name='/dev/sdd',
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model='NWD-BLP4-1600',
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size=1765517033472,
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rotational=False,
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vendor='Super Vendor')
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vendor='Super Vendor',
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hctl='1:0:0:0'),
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]
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self.assertEqual(4, len(devices))
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for expected, device in zip(expected_devices, devices):
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# Compare all attrs of the objects
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for attr in ['name', 'model', 'size', 'rotational',
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'wwn', 'vendor', 'serial']:
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'wwn', 'vendor', 'serial', 'hctl']:
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self.assertEqual(getattr(expected, attr),
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getattr(device, attr))
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expected_calls = [mock.call('/sys/block/%s/device/scsi_device' % dev)
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for dev in ('sda', 'sdb', 'sdc', 'sdd')]
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mock_listdir.assert_has_calls(expected_calls)
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@mock.patch.object(hardware, '_get_device_info')
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@mock.patch.object(pyudev.Device, 'from_device_file')
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@ -786,11 +795,29 @@ class TestGenericHardwareManager(test_base.BaseTestCase):
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devices = hardware.list_all_block_devices()
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self.assertEqual(4, len(devices))
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@mock.patch.object(os, 'listdir')
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@mock.patch.object(hardware, '_get_device_info')
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@mock.patch.object(pyudev.Device, 'from_device_file')
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@mock.patch.object(utils, 'execute')
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def test_list_all_block_device_hctl_fail(self, mocked_execute, mocked_udev,
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mocked_dev_vendor,
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mocked_listdir):
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mocked_listdir.side_effect = (OSError, IndexError)
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mocked_execute.return_value = (BLK_DEVICE_TEMPLATE_SMALL, '')
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mocked_dev_vendor.return_value = 'Super Vendor'
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devices = hardware.list_all_block_devices()
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self.assertEqual(2, len(devices))
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expected_calls = [mock.call('/sys/block/%s/device/scsi_device' % dev)
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for dev in ('sda', 'sdb')]
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mocked_listdir.assert_has_calls(expected_calls)
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@mock.patch.object(os, 'listdir')
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@mock.patch.object(hardware, '_get_device_info')
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@mock.patch.object(pyudev.Device, 'from_device_file')
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@mock.patch.object(utils, 'execute')
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def test_list_all_block_device_with_udev(self, mocked_execute, mocked_udev,
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mocked_dev_vendor):
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mocked_dev_vendor, mock_listdir):
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mock_listdir.return_value = ['1:0:0:0']
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mocked_execute.return_value = (BLK_DEVICE_TEMPLATE, '')
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mocked_udev.side_effect = iter([
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{'ID_WWN': 'wwn%d' % i, 'ID_SERIAL_SHORT': 'serial%d' % i,
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@ -809,7 +836,8 @@ class TestGenericHardwareManager(test_base.BaseTestCase):
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wwn='wwn0',
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wwn_with_extension='wwn-ext0',
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wwn_vendor_extension='wwn-vendor-ext0',
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serial='serial0'),
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serial='serial0',
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hctl='1:0:0:0'),
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hardware.BlockDevice(name='/dev/sdb',
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model='Fastable SD131 7',
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size=10737418240,
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@ -818,7 +846,8 @@ class TestGenericHardwareManager(test_base.BaseTestCase):
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wwn='wwn1',
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wwn_with_extension='wwn-ext1',
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wwn_vendor_extension='wwn-vendor-ext1',
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serial='serial1'),
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serial='serial1',
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hctl='1:0:0:0'),
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hardware.BlockDevice(name='/dev/sdc',
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model='NWD-BLP4-1600',
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size=1765517033472,
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@ -827,7 +856,8 @@ class TestGenericHardwareManager(test_base.BaseTestCase):
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wwn='wwn2',
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wwn_with_extension='wwn-ext2',
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wwn_vendor_extension='wwn-vendor-ext2',
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serial='serial2'),
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serial='serial2',
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hctl='1:0:0:0'),
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hardware.BlockDevice(name='/dev/sdd',
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model='NWD-BLP4-1600',
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size=1765517033472,
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@ -836,7 +866,8 @@ class TestGenericHardwareManager(test_base.BaseTestCase):
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wwn='wwn3',
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wwn_with_extension='wwn-ext3',
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wwn_vendor_extension='wwn-vendor-ext3',
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serial='serial3')
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serial='serial3',
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hctl='1:0:0:0')
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]
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self.assertEqual(4, len(expected_devices))
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@ -844,9 +875,12 @@ class TestGenericHardwareManager(test_base.BaseTestCase):
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# Compare all attrs of the objects
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for attr in ['name', 'model', 'size', 'rotational',
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'wwn', 'vendor', 'serial', 'wwn_with_extension',
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'wwn_vendor_extension']:
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'wwn_vendor_extension', 'hctl']:
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self.assertEqual(getattr(expected, attr),
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getattr(device, attr))
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expected_calls = [mock.call('/sys/block/%s/device/scsi_device' % dev)
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for dev in ('sda', 'sdb', 'sdc', 'sdd')]
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mock_listdir.assert_has_calls(expected_calls)
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@mock.patch.object(hardware, 'dispatch_to_managers')
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def test_erase_devices(self, mocked_dispatch):
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@ -1500,6 +1534,7 @@ class TestGenericHardwareManager(test_base.BaseTestCase):
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mocked_isdir.assert_called_once_with('/sys/firmware/efi')
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@mock.patch.object(os, 'listdir', lambda *_: [])
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@mock.patch.object(utils, 'execute', autospec=True)
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class TestModuleFunctions(test_base.BaseTestCase):
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@ -0,0 +1,4 @@
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---
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features:
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- Add HCTL (Host, Channel, Target and Lun) information to the block
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devices.
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