def test_config_network_parse(self):
xml = """<disk type="network" device="disk">
<driver name="qemu" type="qcow2"/>
<source name="foo.bar.com" protocol="iscsi"/>
<target bus="ide" dev="/dev/hda"/>
</disk>"""
xmldoc = etree.fromstring(xml)
obj = config.LibvirtConfigGuestDisk()
obj.parse_dom(xmldoc)
self.assertEqual(obj.source_type, 'network')
self.assertEqual(obj.source_protocol, 'iscsi')
self.assertEqual(obj.source_name, 'foo.bar.com')
self.assertEqual(obj.driver_name, 'qemu')
self.assertEqual(obj.driver_format, 'qcow2')
self.assertEqual(obj.target_dev, '/dev/hda')
self.assertEqual(obj.target_bus, 'ide')
def _fake_libvirt_info(self,
mock_disk,
disk_info,
cache_mode,
extra_specs,
hypervisor_version,
disk_unit=None):
# For tests in test_virt_drivers which expect libvirt_info to be
# functional
info = config.LibvirtConfigGuestDisk()
info.source_type = 'file'
info.source_device = disk_info['type']
info.target_bus = disk_info['bus']
info.target_dev = disk_info['dev']
info.driver_cache = cache_mode
info.driver_format = 'raw'
info.source_path = mock_disk.path
return info
def test_config_network(self):
obj = config.LibvirtConfigGuestDisk()
obj.source_type = "network"
obj.source_protocol = "iscsi"
obj.source_host = "foo.bar.com"
obj.driver_name = "qemu"
obj.driver_format = "qcow2"
obj.target_dev = "/dev/hda"
obj.target_bus = "ide"
xml = obj.to_xml()
self.assertXmlEqual(
xml, """
<disk type="network" device="disk">
<driver name="qemu" type="qcow2"/>
<source name="foo.bar.com" protocol="iscsi"/>
<target bus="ide" dev="/dev/hda"/>
</disk>""")
def libvirt_info(self, disk_bus, disk_dev, device_type, cache_mode,
extra_specs, hypervisor_version, boot_order=None,
disk_unit=None):
"""Get `LibvirtConfigGuestDisk` filled for this image.
:disk_dev: Disk bus device name
:disk_bus: Disk bus type
:device_type: Device type for this image.
:cache_mode: Caching mode for this image
:extra_specs: Instance type extra specs dict.
:hypervisor_version: the hypervisor version
:boot_order: Disk device boot order
"""
info = vconfig.LibvirtConfigGuestDisk()
hosts, ports = self.driver.get_mon_addrs()
info.source_device = device_type
info.driver_format = 'raw'
info.driver_cache = cache_mode
info.driver_discard = self.discard_mode
info.target_bus = disk_bus
info.target_dev = disk_dev
info.source_type = 'network'
info.source_protocol = 'rbd'
info.source_name = '%s/%s' % (self.pool, self.rbd_name)
info.source_hosts = hosts
info.source_ports = ports
info.boot_order = boot_order
auth_enabled = (CONF.libvirt.rbd_user is not None)
if CONF.libvirt.rbd_secret_uuid:
info.auth_secret_uuid = CONF.libvirt.rbd_secret_uuid
auth_enabled = True # Force authentication locally
if CONF.libvirt.rbd_user:
info.auth_username = CONF.libvirt.rbd_user
if auth_enabled:
info.auth_secret_type = 'ceph'
info.auth_secret_uuid = CONF.libvirt.rbd_secret_uuid
if disk_bus == 'scsi':
self.disk_scsi(info, disk_unit)
self.disk_qos(info, extra_specs)
return info
def test_config_xen_pv(self):
obj = config.LibvirtConfigGuest()
obj.virt_type = "xen"
obj.memory = 1024 * 1024 * 100
obj.vcpus = 2
obj.cpuset = "0-3,^2,4-5"
obj.name = "demo"
obj.uuid = "b38a3f43-4be2-4046-897f-b67c2f5e0147"
obj.os_type = "linux"
obj.os_kernel = "/tmp/vmlinuz"
obj.os_initrd = "/tmp/ramdisk"
obj.os_root = "root=xvda"
obj.os_cmdline = "console=xvc0"
disk = config.LibvirtConfigGuestDisk()
disk.source_type = "file"
disk.source_path = "/tmp/img"
disk.target_dev = "/dev/xvda"
disk.target_bus = "xen"
obj.add_device(disk)
xml = obj.to_xml()
self.assertXmlEqual(
xml, """
<domain type="xen">
<uuid>b38a3f43-4be2-4046-897f-b67c2f5e0147</uuid>
<name>demo</name>
<memory>104857600</memory>
<vcpu cpuset="0-3,^2,4-5">2</vcpu>
<os>
<type>linux</type>
<kernel>/tmp/vmlinuz</kernel>
<initrd>/tmp/ramdisk</initrd>
<cmdline>console=xvc0</cmdline>
<root>root=xvda</root>
</os>
<devices>
<disk type="file" device="disk">
<source file="/tmp/img"/>
<target bus="xen" dev="/dev/xvda"/>
</disk>
</devices>
</domain>""")
def libvirt_info(self, disk_bus, disk_dev, device_type, cache_mode):
"""Get `LibvirtConfigGuestDisk` filled for this image.
:disk_dev: Disk bus device name
:disk_bus: Disk bus type
:device_type: Device type for this image.
:cache_mode: Caching mode for this image
"""
info = vconfig.LibvirtConfigGuestDisk()
info.source_type = self.source_type
info.source_device = device_type
info.target_bus = disk_bus
info.target_dev = disk_dev
info.driver_cache = cache_mode
info.driver_format = self.driver_format
driver_name = libvirt_utils.pick_disk_driver_name(self.is_block_dev)
info.driver_name = driver_name
info.source_path = self.path
return info
def test_config_kvm(self):
obj = config.LibvirtConfigGuest()
obj.virt_type = "kvm"
obj.memory = 1024 * 1024 * 100
obj.vcpus = 2
obj.name = "demo"
obj.uuid = "b38a3f43-4be2-4046-897f-b67c2f5e0147"
obj.os_type = "linux"
obj.os_boot_dev = "hd"
obj.acpi = True
obj.apic = True
disk = config.LibvirtConfigGuestDisk()
disk.source_type = "file"
disk.source_path = "/tmp/img"
disk.target_dev = "/dev/vda"
disk.target_bus = "virtio"
obj.add_device(disk)
xml = obj.to_xml()
self.assertXmlEqual(
xml, """
<domain type="kvm">
<uuid>b38a3f43-4be2-4046-897f-b67c2f5e0147</uuid>
<name>demo</name>
<memory>104857600</memory>
<vcpu>2</vcpu>
<os>
<type>linux</type>
<boot dev="hd"/>
</os>
<features>
<acpi/>
<apic/>
</features>
<devices>
<disk type="file" device="disk">
<source file="/tmp/img"/>
<target bus="virtio" dev="/dev/vda"/>
</disk>
</devices>
</domain>""")
def test_config_xen_hvm(self):
obj = config.LibvirtConfigGuest()
obj.virt_type = "xen"
obj.memory = 1024 * 1024 * 100
obj.vcpus = 2
obj.name = "demo"
obj.uuid = "b38a3f43-4be2-4046-897f-b67c2f5e0147"
obj.os_type = "hvm"
obj.os_loader = '/usr/lib/xen/boot/hvmloader'
obj.os_root = "root=xvda"
obj.os_cmdline = "console=xvc0"
disk = config.LibvirtConfigGuestDisk()
disk.source_type = "file"
disk.source_path = "/tmp/img"
disk.target_dev = "/dev/xvda"
disk.target_bus = "xen"
obj.add_device(disk)
xml = obj.to_xml()
self.assertXmlEqual(
xml, """
<domain type="xen">
<uuid>b38a3f43-4be2-4046-897f-b67c2f5e0147</uuid>
<name>demo</name>
<memory>104857600</memory>
<vcpu>2</vcpu>
<os>
<type>hvm</type>
<loader>/usr/lib/xen/boot/hvmloader</loader>
<cmdline>console=xvc0</cmdline>
<root>root=xvda</root>
</os>
<devices>
<disk type="file" device="disk">
<source file="/tmp/img"/>
<target bus="xen" dev="/dev/xvda"/>
</disk>
</devices>
</domain>""")
def _generate_cdrom_xml(instance):
meta = instance.get("metadata", {})
set_source = False
if meta.get("__loading_update_driver_image", "") == "enable":
set_source = True
source = None
if CONF.guest_os_driver_path and \
os.path.exists(CONF.guest_os_driver_path) and set_source:
source = CONF.guest_os_driver_path
cdrom = config_original.LibvirtConfigGuestDisk()
# source_path null
cdrom.source_device = "cdrom"
cdrom.driver_name = "qemu"
cdrom.driver_format = "raw"
cdrom.driver_cache = "none"
cdrom.target_dev = "hdb"
cdrom.target_bus = "ide"
cdrom.source_path = source or ""
# io use threads default
cdrom.readonly = True
return cdrom.format_dom()
def test_config_network_no_name(self):
obj = config.LibvirtConfigGuestDisk()
obj.source_type = 'network'
obj.source_protocol = 'nbd'
obj.source_hosts = ['foo.bar.com']
obj.source_ports = [None]
obj.driver_name = 'qemu'
obj.driver_format = 'raw'
obj.target_dev = '/dev/vda'
obj.target_bus = 'virtio'
xml = obj.to_xml()
self.assertXmlEqual(
xml, """
<disk type="network" device="disk">
<driver name="qemu" type="raw"/>
<source protocol="nbd">
<host name="foo.bar.com"/>
</source>
<target bus="virtio" dev="/dev/vda"/>
</disk>""")
def libvirt_info(self,
disk_bus,
disk_dev,
device_type,
cache_mode,
extra_specs,
hypervisor_version,
boot_order=None,
disk_unit=None):
"""Get `LibvirtConfigGuestDisk` filled for this image.
:disk_dev: Disk bus device name
:disk_bus: Disk bus type
:device_type: Device type for this image.
:cache_mode: Caching mode for this image
:extra_specs: Instance type extra specs dict.
:hypervisor_version: the hypervisor version
:boot_order: Disk device boot order
"""
info = vconfig.LibvirtConfigGuestDisk()
info.source_type = self.source_type
info.source_device = device_type
info.target_bus = disk_bus
info.target_dev = disk_dev
info.driver_cache = cache_mode
info.driver_discard = self.discard_mode
info.driver_io = self.driver_io
info.driver_format = self.driver_format
driver_name = libvirt_utils.pick_disk_driver_name(
hypervisor_version, self.is_block_dev)
info.driver_name = driver_name
info.source_path = self.path
info.boot_order = boot_order
if disk_bus == 'scsi':
self.disk_scsi(info, disk_unit)
self.disk_qos(info, extra_specs)
return info
def connect_volume(self, connection_info, disk_info):
"""Connect the volume. Returns xml for libvirt."""
conf = vconfig.LibvirtConfigGuestDisk()
conf.driver_name = virtutils.pick_disk_driver_name(
self.connection.get_hypervisor_version(), self.is_block_dev)
conf.source_device = disk_info['type']
conf.driver_format = "raw"
conf.driver_cache = "none"
conf.target_dev = disk_info['dev']
conf.target_bus = disk_info['bus']
conf.serial = connection_info.get('serial')
# Support for block size tuning
data = {}
if 'data' in connection_info:
data = connection_info['data']
if 'logical_block_size' in data:
conf.logical_block_size = data['logical_block_size']
if 'physical_block_size' in data:
conf.physical_block_size = data['physical_block_size']
# Extract rate_limit control parameters
if 'qos_specs' in data and data['qos_specs']:
tune_opts = [
'total_bytes_sec', 'read_bytes_sec', 'write_bytes_sec',
'total_iops_sec', 'read_iops_sec', 'write_iops_sec'
]
specs = data['qos_specs']
if isinstance(specs, dict):
for k, v in specs.iteritems():
if k in tune_opts:
new_key = 'disk_' + k
setattr(conf, new_key, v)
else:
LOG.warn(
_('Unknown content in connection_info/'
'qos_specs: %s') % specs)
return conf
def connect_volume(self, connection_info, disk_info):
"""Connect the volume. Returns xml for libvirt."""
conf = vconfig.LibvirtConfigGuestDisk()
conf.driver_name = virtutils.pick_disk_driver_name(
self.connection.get_hypervisor_version(), self.is_block_dev)
conf.device_type = disk_info['type']
conf.driver_format = "raw"
conf.driver_cache = "none"
conf.target_dev = disk_info['dev']
conf.target_bus = disk_info['bus']
conf.serial = connection_info.get('serial')
# Support for block size tuning
data = {}
if 'data' in connection_info:
data = connection_info['data']
if 'logical_block_size' in data:
conf.logical_block_size = data['logical_block_size']
if 'physical_block_size' in data:
conf.physical_block_size = data['physical_block_size']
return conf
def get_disk(self, device):
"""Returns the disk mounted at device
:returns LivirtConfigGuestDisk: mounted at device or None
"""
try:
doc = etree.fromstring(self._domain.XMLDesc(0))
except Exception:
return None
# FIXME(lyarwood): Workaround for the device being either a target dev
# when called via swap_volume or source file when called via
# live_snapshot. This should be removed once both are refactored to use
# only the target dev of the device.
node = doc.find("./devices/disk/target[@dev='%s'].." % device)
if node is None:
node = doc.find("./devices/disk/source[@file='%s'].." % device)
if node is not None:
conf = vconfig.LibvirtConfigGuestDisk()
conf.parse_dom(node)
return conf
def libvirt_info(self, disk_bus, disk_dev, device_type, cache_mode,
extra_specs, hypervisor_version):
"""Get `LibvirtConfigGuestDisk` filled for this image.
:disk_dev: Disk bus device name
:disk_bus: Disk bus type
:device_type: Device type for this image.
:cache_mode: Caching mode for this image
:extra_specs: Instance type extra specs dict.
"""
info = vconfig.LibvirtConfigGuestDisk()
info.source_type = self.source_type
info.source_device = device_type
info.target_bus = disk_bus
info.target_dev = disk_dev
info.driver_cache = cache_mode
info.driver_format = self.driver_format
driver_name = libvirt_utils.pick_disk_driver_name(
hypervisor_version, self.is_block_dev)
info.driver_name = driver_name
info.source_path = self.path
tune_items = [
'disk_read_bytes_sec', 'disk_read_iops_sec',
'disk_write_bytes_sec', 'disk_write_iops_sec',
'disk_total_bytes_sec', 'disk_total_iops_sec'
]
# Note(yaguang): Currently, the only tuning available is Block I/O
# throttling for qemu.
if self.source_type in ['file', 'block']:
for key, value in extra_specs.iteritems():
scope = key.split(':')
if len(scope) > 1 and scope[0] == 'quota':
if scope[1] in tune_items:
setattr(info, scope[1], value)
return info
def test_config_network_multihost(self):
obj = config.LibvirtConfigGuestDisk()
obj.source_type = 'network'
obj.source_protocol = 'rbd'
obj.source_name = 'pool/image'
obj.source_hosts = ['foo.bar.com', '::1', '1.2.3.4']
obj.source_ports = [None, '123', '456']
obj.driver_name = 'qemu'
obj.driver_format = 'raw'
obj.target_dev = '/dev/vda'
obj.target_bus = 'virtio'
xml = obj.to_xml()
self.assertXmlEqual(
xml, """
<disk type="network" device="disk">
<driver name="qemu" type="raw"/>
<source name="pool/image" protocol="rbd">
<host name="foo.bar.com"/>
<host name="::1" port="123"/>
<host name="1.2.3.4" port="456"/>
</source>
<target bus="virtio" dev="/dev/vda"/>
</disk>""")
def test_config_network_auth(self):
obj = config.LibvirtConfigGuestDisk()
obj.source_type = "network"
obj.source_protocol = "rbd"
obj.source_host = "pool/image"
obj.driver_name = "qemu"
obj.driver_format = "raw"
obj.target_dev = "/dev/vda"
obj.target_bus = "virtio"
obj.auth_username = "******"
obj.auth_secret_type = "ceph"
obj.auth_secret_uuid = "b38a3f43-4be2-4046-897f-b67c2f5e0147"
xml = obj.to_xml()
self.assertXmlEqual(xml, """
<disk type="network" device="disk">
<driver name="qemu" type="raw"/>
<source protocol="rbd" name="pool/image"/>
<auth username="******">
<secret type="ceph"
uuid="b38a3f43-4be2-4046-897f-b67c2f5e0147"/>
</auth>
<target bus="virtio" dev="/dev/vda"/>
</disk>""")
def test_config_kvm(self):
obj = config.LibvirtConfigGuest()
obj.virt_type = "kvm"
obj.memory = 1024 * 1024 * 100
obj.vcpus = 2
obj.cpu_shares = 100
obj.cpu_quota = 50000
obj.cpu_period = 25000
obj.name = "demo"
obj.uuid = "b38a3f43-4be2-4046-897f-b67c2f5e0147"
obj.os_type = "linux"
obj.os_boot_dev = "hd"
obj.os_smbios = config.LibvirtConfigGuestSMBIOS()
obj.acpi = True
obj.apic = True
obj.sysinfo = config.LibvirtConfigGuestSysinfo()
obj.sysinfo.bios_vendor = "Acme"
obj.sysinfo.system_version = "1.0.0"
disk = config.LibvirtConfigGuestDisk()
disk.source_type = "file"
disk.source_path = "/tmp/img"
disk.target_dev = "/dev/vda"
disk.target_bus = "virtio"
obj.add_device(disk)
xml = obj.to_xml()
self.assertXmlEqual(
xml, """
<domain type="kvm">
<uuid>b38a3f43-4be2-4046-897f-b67c2f5e0147</uuid>
<name>demo</name>
<memory>104857600</memory>
<vcpu>2</vcpu>
<sysinfo type='smbios'>
<bios>
<entry name="vendor">Acme</entry>
</bios>
<system>
<entry name="version">1.0.0</entry>
</system>
</sysinfo>
<os>
<type>linux</type>
<boot dev="hd"/>
<smbios mode="sysinfo"/>
</os>
<features>
<acpi/>
<apic/>
</features>
<cputune>
<shares>100</shares>
<quota>50000</quota>
<period>25000</period>
</cputune>
<devices>
<disk type="file" device="disk">
<source file="/tmp/img"/>
<target bus="virtio" dev="/dev/vda"/>
</disk>
</devices>
</domain>""")
def fake_kvm_guest():
obj = config.LibvirtConfigGuest()
obj.virt_type = "kvm"
obj.memory = 100 * units.Mi
obj.vcpus = 2
obj.cpuset = set([0, 1, 3, 4, 5])
obj.cputune = config.LibvirtConfigGuestCPUTune()
obj.cputune.shares = 100
obj.cputune.quota = 50000
obj.cputune.period = 25000
obj.membacking = config.LibvirtConfigGuestMemoryBacking()
page1 = config.LibvirtConfigGuestMemoryBackingPage()
page1.size_kb = 2048
page1.nodeset = [0, 1, 2, 3, 5]
page2 = config.LibvirtConfigGuestMemoryBackingPage()
page2.size_kb = 1048576
page2.nodeset = [4]
obj.membacking.hugepages.append(page1)
obj.membacking.hugepages.append(page2)
obj.memtune = config.LibvirtConfigGuestMemoryTune()
obj.memtune.hard_limit = 496
obj.memtune.soft_limit = 672
obj.memtune.swap_hard_limit = 1638
obj.memtune.min_guarantee = 2970
obj.numatune = config.LibvirtConfigGuestNUMATune()
numamemory = config.LibvirtConfigGuestNUMATuneMemory()
numamemory.mode = "preferred"
numamemory.nodeset = [0, 1, 2, 3, 8]
obj.numatune.memory = numamemory
numamemnode0 = config.LibvirtConfigGuestNUMATuneMemNode()
numamemnode0.cellid = 0
numamemnode0.mode = "preferred"
numamemnode0.nodeset = [0, 1]
numamemnode1 = config.LibvirtConfigGuestNUMATuneMemNode()
numamemnode1.cellid = 1
numamemnode1.mode = "preferred"
numamemnode1.nodeset = [2, 3]
numamemnode2 = config.LibvirtConfigGuestNUMATuneMemNode()
numamemnode2.cellid = 2
numamemnode2.mode = "preferred"
numamemnode2.nodeset = [8]
obj.numatune.memnodes.extend([numamemnode0, numamemnode1, numamemnode2])
obj.name = "demo"
obj.uuid = "b38a3f43-4be2-4046-897f-b67c2f5e0147"
obj.os_type = "linux"
obj.os_boot_dev = ["hd", "cdrom", "fd"]
obj.os_smbios = config.LibvirtConfigGuestSMBIOS()
obj.features = [
config.LibvirtConfigGuestFeatureACPI(),
config.LibvirtConfigGuestFeatureAPIC(),
config.LibvirtConfigGuestFeaturePAE(),
config.LibvirtConfigGuestFeatureKvmHidden()
]
obj.sysinfo = config.LibvirtConfigGuestSysinfo()
obj.sysinfo.bios_vendor = "Acme"
obj.sysinfo.system_version = "1.0.0"
disk = config.LibvirtConfigGuestDisk()
disk.source_type = "file"
disk.source_path = "/tmp/img"
disk.target_dev = "/dev/vda"
disk.target_bus = "virtio"
obj.add_device(disk)
return obj
def test_update_volume_xml_update_encryption(self):
connection_info = {
'driver_volume_type': 'rbd',
'serial': 'd299a078-f0db-4993-bf03-f10fe44fd192',
'data': {
'access_mode': 'rw',
'secret_type': 'ceph',
'name': 'cinder-volumes/volume-d299a078',
'encrypted': False,
'discard': True,
'cluster_name': 'ceph',
'secret_uuid': '1a790a26-dd49-4825-8d16-3dd627cf05a9',
'qos_specs': None,
'auth_enabled': True,
'volume_id': 'd299a078-f0db-4993-bf03-f10fe44fd192',
'hosts': ['172.16.128.101', '172.16.128.121'],
'auth_username': '******',
'ports': ['6789', '6789', '6789']
}
}
bdm = objects.LibvirtLiveMigrateBDMInfo(
serial='d299a078-f0db-4993-bf03-f10fe44fd192',
bus='scsi',
type='disk',
dev='sdb',
connection_info=connection_info,
encryption_secret_uuid=uuids.encryption_secret_uuid_new)
data = objects.LibvirtLiveMigrateData(target_connect_addr=None,
bdms=[bdm],
block_migration=False)
xml = """<domain>
<devices>
<disk type='network' device='disk'>
<driver name='qemu' type='raw' cache='writeback' discard='unmap'/>
<auth username='******'>
<secret type='ceph' uuid='1a790a26-dd49-4825-8d16-3dd627cf05a9'/>
</auth>
<source protocol='rbd' name='cinder-volumes/volume-d299a078'>
<host name='172.16.128.101' port='6789'/>
<host name='172.16.128.121' port='6789'/>
</source>
<backingStore/>
<target dev='sdb' bus='scsi'/>
<serial>d299a078-f0db-4993-bf03-f10fe44fd192</serial>
<alias name='scsi0-0-0-1'/>
<encryption format='luks'>
<secret type='passphrase' uuid='%(encryption_secret_uuid)s'/>
</encryption>
<address type='drive' controller='0' bus='0' target='0' unit='1'/>
</disk>
</devices>
</domain>""" % {
'encryption_secret_uuid': uuids.encryption_secret_uuid_old
}
conf = vconfig.LibvirtConfigGuestDisk()
conf.source_device = bdm.type
conf.driver_name = "qemu"
conf.driver_format = "raw"
conf.driver_cache = "writeback"
conf.target_dev = bdm.dev
conf.target_bus = bdm.bus
conf.serial = bdm.connection_info.get('serial')
conf.source_type = "network"
conf.driver_discard = 'unmap'
conf.device_addr = vconfig.LibvirtConfigGuestDeviceAddressDrive()
conf.device_addr.controller = 0
get_volume_config = mock.MagicMock(return_value=conf)
doc = etree.fromstring(xml)
res = etree.tostring(migration._update_volume_xml(
doc, data, get_volume_config),
encoding='unicode')
new_xml = xml.replace(uuids.encryption_secret_uuid_old,
uuids.encryption_secret_uuid_new)
self.assertThat(res, matchers.XMLMatches(new_xml))
def get_config(self, connection_info, disk_info):
"""Returns xml for libvirt."""
conf = vconfig.LibvirtConfigGuestDisk()
conf.source_device = disk_info['type']
conf.driver_format = "raw"
conf.driver_cache = "none"
conf.target_dev = disk_info['dev']
conf.target_bus = disk_info['bus']
conf.serial = connection_info.get('serial')
if CONF.libvirt.virt_type in ('qemu', 'kvm'):
# the QEMU backend supports multiple backends, so tell libvirt
# which one to use
conf.driver_name = 'qemu'
# Support for block size tuning
data = {}
if 'data' in connection_info:
data = connection_info['data']
if 'logical_block_size' in data:
conf.logical_block_size = data['logical_block_size']
if 'physical_block_size' in data:
conf.physical_block_size = data['physical_block_size']
# Extract rate_limit control parameters
if 'qos_specs' in data and data['qos_specs']:
tune_opts = [
'total_bytes_sec', 'read_bytes_sec', 'write_bytes_sec',
'total_iops_sec', 'read_iops_sec', 'write_iops_sec',
'read_bytes_sec_max', 'read_iops_sec_max',
'write_bytes_sec_max', 'write_iops_sec_max',
'total_bytes_sec_max', 'total_iops_sec_max', 'size_iops_sec'
]
specs = data['qos_specs']
if isinstance(specs, dict):
for k, v in specs.items():
if k in tune_opts:
new_key = 'disk_' + k
setattr(conf, new_key, v)
else:
LOG.warning(
'Unknown content in connection_info/'
'qos_specs: %s', specs)
# Extract access_mode control parameters
if 'access_mode' in data and data['access_mode']:
access_mode = data['access_mode']
if access_mode in ('ro', 'rw'):
conf.readonly = access_mode == 'ro'
else:
LOG.error(
'Unknown content in '
'connection_info/access_mode: %s', access_mode)
raise exception.InvalidVolumeAccessMode(
access_mode=access_mode)
# Configure usage of discard
if data.get('discard', False) is True:
conf.driver_discard = 'unmap'
# NOTE(melwitt): We set the device address unit number manually in the
# case of the virtio-scsi controller, in order to allow attachment of
# up to 256 devices. So, we should only be setting the address tag
# if we intend to set the unit number. Otherwise, we will let libvirt
# handle autogeneration of the address tag.
# See https://bugs.launchpad.net/nova/+bug/1792077 for details.
if disk_info['bus'] == 'scsi' and 'unit' in disk_info:
# The driver is responsible to create the SCSI controller
# at index 0.
conf.device_addr = vconfig.LibvirtConfigGuestDeviceAddressDrive()
conf.device_addr.controller = 0
# In order to allow up to 256 disks handled by one
# virtio-scsi controller, the device addr should be
# specified.
conf.device_addr.unit = disk_info['unit']
if connection_info.get('multiattach', False):
# Note that driver_cache should be disabled (none) when using
# a shareable disk.
conf.shareable = True
volume_id = driver_block_device.get_volume_id(connection_info)
volume_secret = None
if volume_id:
volume_secret = self.host.find_secret('volume', volume_id)
if volume_secret:
conf.encryption = vconfig.LibvirtConfigGuestDiskEncryption()
secret = vconfig.LibvirtConfigGuestDiskEncryptionSecret()
secret.type = 'passphrase'
secret.uuid = volume_secret.UUIDString()
conf.encryption.format = 'luks'
conf.encryption.secret = secret
return conf
def setUp(self):
super(_LibvirtEvacuateTest, self).setUp()
self.useFixture(nova_fixtures.CinderFixture(self))
self.useFixture(nova_fixtures.NeutronFixture(self))
self.useFixture(nova_fixtures.GlanceFixture(self))
self.useFixture(func_fixtures.PlacementFixture())
fake_network.set_stub_network_methods(self)
api_fixture = self.useFixture(
nova_fixtures.OSAPIFixture(api_version='v2.1'))
self.api = api_fixture.admin_api
# force_down and evacuate without onSharedStorage
self.api.microversion = '2.14'
fake_notifier.stub_notifier(self)
self.addCleanup(fake_notifier.reset)
self.useFixture(fakelibvirt.FakeLibvirtFixture())
# Fake out all the details of volume connection
self.useFixture(
fixtures.MockPatch(
'nova.virt.libvirt.driver.LibvirtDriver.get_volume_connector'))
self.useFixture(
fixtures.MockPatch(
'nova.virt.libvirt.driver.LibvirtDriver._connect_volume'))
# For cleanup
self.useFixture(
fixtures.MockPatch(
'nova.virt.libvirt.driver.LibvirtDriver._disconnect_volume'))
volume_config = libvirt_config.LibvirtConfigGuestDisk()
volume_config.driver_name = 'fake-volume-driver'
volume_config.source_path = 'fake-source-path'
volume_config.target_dev = 'fake-target-dev'
volume_config.target_bus = 'fake-target-bus'
get_volume_config = self.useFixture(
fixtures.MockPatch(
'nova.virt.libvirt.driver.LibvirtDriver._get_volume_config')
).mock
get_volume_config.return_value = volume_config
# Ensure our computes report lots of available disk, vcpu, and ram
lots = 10000000
get_local_gb_info = self.useFixture(
fixtures.MockPatch(
'nova.virt.libvirt.driver.LibvirtDriver._get_local_gb_info')
).mock
get_local_gb_info.return_value = {
'total': lots,
'free': lots,
'used': 1
}
get_vcpu_available = self.useFixture(
fixtures.MockPatch(
'nova.virt.libvirt.driver.LibvirtDriver._get_vcpu_available')
).mock
get_vcpu_available.return_value = set(cpu for cpu in range(24))
get_memory_mb_total = self.useFixture(
fixtures.MockPatch(
'nova.virt.libvirt.host.Host.get_memory_mb_total')).mock
get_memory_mb_total.return_value = lots
# Mock out adding rng devices
self.useFixture(
fixtures.MockPatch(
'nova.virt.libvirt.driver.LibvirtDriver._add_rng_device')).mock
self.start_service('conductor')
self.start_service('scheduler')
self.flags(compute_driver='libvirt.LibvirtDriver')
ctxt = context.get_admin_context()
for flavor in FLAVOR_FIXTURES:
objects.Flavor(context=ctxt, **flavor).create()
def get_config(self, connection_info, disk_info):
"""Returns xml for libvirt."""
conf = vconfig.LibvirtConfigGuestDisk()
conf.driver_name = libvirt_utils.pick_disk_driver_name(
self.connection._host.get_version(), self.is_block_dev)
conf.source_device = disk_info['type']
conf.driver_format = "raw"
conf.driver_cache = "none"
conf.target_dev = disk_info['dev']
conf.target_bus = disk_info['bus']
conf.serial = connection_info.get('serial')
# Support for block size tuning
data = {}
if 'data' in connection_info:
data = connection_info['data']
if 'logical_block_size' in data:
conf.logical_block_size = data['logical_block_size']
if 'physical_block_size' in data:
conf.physical_block_size = data['physical_block_size']
# Extract rate_limit control parameters
if 'qos_specs' in data and data['qos_specs']:
tune_opts = [
'total_bytes_sec', 'read_bytes_sec', 'write_bytes_sec',
'total_iops_sec', 'read_iops_sec', 'write_iops_sec'
]
specs = data['qos_specs']
if isinstance(specs, dict):
for k, v in six.iteritems(specs):
if k in tune_opts:
new_key = 'disk_' + k
setattr(conf, new_key, v)
else:
LOG.warning(
_LW('Unknown content in connection_info/'
'qos_specs: %s'), specs)
# Extract access_mode control parameters
if 'access_mode' in data and data['access_mode']:
access_mode = data['access_mode']
if access_mode in ('ro', 'rw'):
conf.readonly = access_mode == 'ro'
else:
LOG.error(
_LE('Unknown content in '
'connection_info/access_mode: %s'), access_mode)
raise exception.InvalidVolumeAccessMode(
access_mode=access_mode)
# Configure usage of discard
if data.get('discard', False) is True:
min_qemu = nova.virt.libvirt.driver.MIN_QEMU_DISCARD_VERSION
min_libvirt = nova.virt.libvirt.driver.MIN_LIBVIRT_DISCARD_VERSION
if self.connection._host.has_min_version(min_libvirt, min_qemu,
host.HV_DRIVER_QEMU):
conf.driver_discard = 'unmap'
else:
global SHOULD_LOG_DISCARD_WARNING
if SHOULD_LOG_DISCARD_WARNING:
SHOULD_LOG_DISCARD_WARNING = False
LOG.warning(
_LW('Unable to attach %(type)s volume '
'%(serial)s with discard enabled: qemu '
'%(qemu)s and libvirt %(libvirt)s or '
'later are required.'), {
'qemu': min_qemu,
'libvirt': min_libvirt,
'serial': conf.serial,
'type': connection_info['driver_volume_type']
})
return conf
def fake_kvm_guest():
obj = config.LibvirtConfigGuest()
obj.virt_type = "kvm"
obj.memory = 100 * units.Mi
obj.vcpus = 2
obj.cpuset = set([0, 1, 3, 4, 5])
obj.cputune = config.LibvirtConfigGuestCPUTune()
obj.cputune.shares = 100
obj.cputune.quota = 50000
obj.cputune.period = 25000
obj.membacking = config.LibvirtConfigGuestMemoryBacking()
page1 = config.LibvirtConfigGuestMemoryBackingPage()
page1.size_kb = 2048
page1.nodeset = [0, 1, 2, 3, 5]
page2 = config.LibvirtConfigGuestMemoryBackingPage()
page2.size_kb = 1048576
page2.nodeset = [4]
obj.membacking.hugepages.append(page1)
obj.membacking.hugepages.append(page2)
obj.memtune = config.LibvirtConfigGuestMemoryTune()
obj.memtune.hard_limit = 496
obj.memtune.soft_limit = 672
obj.memtune.swap_hard_limit = 1638
obj.memtune.min_guarantee = 2970
obj.numatune = config.LibvirtConfigGuestNUMATune()
numamemory = config.LibvirtConfigGuestNUMATuneMemory()
numamemory.mode = "preferred"
numamemory.nodeset = [0, 1, 2, 3, 8]
obj.numatune.memory = numamemory
numamemnode0 = config.LibvirtConfigGuestNUMATuneMemNode()
numamemnode0.cellid = 0
numamemnode0.mode = "preferred"
numamemnode0.nodeset = [0, 1]
numamemnode1 = config.LibvirtConfigGuestNUMATuneMemNode()
numamemnode1.cellid = 1
numamemnode1.mode = "preferred"
numamemnode1.nodeset = [2, 3]
numamemnode2 = config.LibvirtConfigGuestNUMATuneMemNode()
numamemnode2.cellid = 2
numamemnode2.mode = "preferred"
numamemnode2.nodeset = [8]
obj.numatune.memnodes.extend([numamemnode0, numamemnode1, numamemnode2])
obj.name = "demo"
obj.uuid = "b38a3f43-4be2-4046-897f-b67c2f5e0147"
obj.os_type = "linux"
obj.os_boot_dev = ["hd", "cdrom", "fd"]
obj.os_smbios = config.LibvirtConfigGuestSMBIOS()
obj.features = [
config.LibvirtConfigGuestFeatureACPI(),
config.LibvirtConfigGuestFeatureAPIC(),
config.LibvirtConfigGuestFeaturePAE(),
config.LibvirtConfigGuestFeatureKvmHidden()
]
obj.sysinfo = config.LibvirtConfigGuestSysinfo()
obj.sysinfo.bios_vendor = "Acme"
obj.sysinfo.system_version = "1.0.0"
# obj.devices[0]
disk = config.LibvirtConfigGuestDisk()
disk.source_type = "file"
disk.source_path = "/tmp/disk-img"
disk.target_dev = "vda"
disk.target_bus = "virtio"
obj.add_device(disk)
# obj.devices[1]
disk = config.LibvirtConfigGuestDisk()
disk.source_device = "cdrom"
disk.source_type = "file"
disk.source_path = "/tmp/cdrom-img"
disk.target_dev = "sda"
disk.target_bus = "sata"
obj.add_device(disk)
# obj.devices[2]
intf = config.LibvirtConfigGuestInterface()
intf.net_type = "network"
intf.mac_addr = "52:54:00:f6:35:8f"
intf.model = "virtio"
intf.source_dev = "virbr0"
obj.add_device(intf)
# obj.devices[3]
balloon = config.LibvirtConfigMemoryBalloon()
balloon.model = 'virtio'
balloon.period = 11
obj.add_device(balloon)
# obj.devices[4]
mouse = config.LibvirtConfigGuestInput()
mouse.type = "mouse"
mouse.bus = "virtio"
obj.add_device(mouse)
# obj.devices[5]
gfx = config.LibvirtConfigGuestGraphics()
gfx.type = "vnc"
gfx.autoport = True
gfx.keymap = "en_US"
gfx.listen = "127.0.0.1"
obj.add_device(gfx)
# obj.devices[6]
video = config.LibvirtConfigGuestVideo()
video.type = 'virtio'
obj.add_device(video)
# obj.devices[7]
serial = config.LibvirtConfigGuestSerial()
serial.type = "file"
serial.source_path = "/tmp/vm.log"
obj.add_device(serial)
# obj.devices[8]
rng = config.LibvirtConfigGuestRng()
rng.backend = '/dev/urandom'
rng.rate_period = '12'
rng.rate_bytes = '34'
obj.add_device(rng)
# obj.devices[9]
controller = config.LibvirtConfigGuestController()
controller.type = 'scsi'
controller.model = 'virtio-scsi' # usually set from image meta
controller.index = 0
obj.add_device(controller)
return obj
def get_config(self, connection_info, disk_info):
"""Returns xml for libvirt."""
conf = vconfig.LibvirtConfigGuestDisk()
conf.driver_name = libvirt_utils.pick_disk_driver_name(
self.host.get_version(), self.is_block_dev)
conf.source_device = disk_info['type']
conf.driver_format = "raw"
conf.driver_cache = "none"
conf.target_dev = disk_info['dev']
conf.target_bus = disk_info['bus']
conf.serial = connection_info.get('serial')
# Support for block size tuning
data = {}
if 'data' in connection_info:
data = connection_info['data']
if 'logical_block_size' in data:
conf.logical_block_size = data['logical_block_size']
if 'physical_block_size' in data:
conf.physical_block_size = data['physical_block_size']
# Extract rate_limit control parameters
if 'qos_specs' in data and data['qos_specs']:
tune_opts = [
'total_bytes_sec', 'read_bytes_sec', 'write_bytes_sec',
'total_iops_sec', 'read_iops_sec', 'write_iops_sec'
]
specs = data['qos_specs']
if isinstance(specs, dict):
for k, v in specs.items():
if k in tune_opts:
new_key = 'disk_' + k
setattr(conf, new_key, v)
else:
LOG.warning(
'Unknown content in connection_info/'
'qos_specs: %s', specs)
# Extract access_mode control parameters
if 'access_mode' in data and data['access_mode']:
access_mode = data['access_mode']
if access_mode in ('ro', 'rw'):
conf.readonly = access_mode == 'ro'
else:
LOG.error(
'Unknown content in '
'connection_info/access_mode: %s', access_mode)
raise exception.InvalidVolumeAccessMode(
access_mode=access_mode)
# Configure usage of discard
if data.get('discard', False) is True:
conf.driver_discard = 'unmap'
if disk_info['bus'] == 'scsi':
# The driver is responsible to create the SCSI controller
# at index 0.
conf.device_addr = vconfig.LibvirtConfigGuestDeviceAddressDrive()
conf.device_addr.controller = 0
if 'unit' in disk_info:
# In order to allow up to 256 disks handled by one
# virtio-scsi controller, the device addr should be
# specified.
conf.device_addr.unit = disk_info['unit']
if connection_info.get('multiattach', False):
# Note that driver_cache should be disabled (none) when using
# a shareable disk.
conf.shareable = True
volume_id = connection_info.get('data', {}).get('volume_id')
volume_secret = None
if volume_id:
volume_secret = self.host.find_secret('volume', volume_id)
if volume_secret:
conf.encryption = vconfig.LibvirtConfigGuestDiskEncryption()
secret = vconfig.LibvirtConfigGuestDiskEncryptionSecret()
secret.type = 'passphrase'
secret.uuid = volume_secret.UUIDString()
conf.encryption.format = 'luks'
conf.encryption.secret = secret
return conf
def fake_disk(disk):
libvirt_disk = libvirt_config.LibvirtConfigGuestDisk()
libvirt_disk.source_type = disk[0]
libvirt_disk.source_path = os.path.join(*disk[1])
return libvirt_disk
