def get_all_devices(self, devtype=None, from_persistent_config=False):
"""Returns all devices for a guest
:param devtype: a LibvirtConfigGuestDevice subclass class
:param from_persistent_config: query the device from the persistent
domain (i.e. inactive XML configuration that'll be used on next
start of the domain) instead of the live domain configuration
:returns: a list of LibvirtConfigGuestDevice instances
"""
flags = 0
if from_persistent_config:
flags |= libvirt.VIR_DOMAIN_XML_INACTIVE
try:
config = vconfig.LibvirtConfigGuest()
config.parse_str(self._domain.XMLDesc(flags))
except Exception:
return []
devs = []
for dev in config.devices:
if (devtype is None or isinstance(dev, devtype)):
devs.append(dev)
return devs
def test_config_lxc(self):
obj = config.LibvirtConfigGuest()
obj.virt_type = "lxc"
obj.memory = 1024 * 1024 * 100
obj.vcpus = 2
obj.name = "demo"
obj.uuid = "b38a3f43-4be2-4046-897f-b67c2f5e0147"
obj.os_type = "exe"
obj.os_init_path = "/sbin/init"
fs = config.LibvirtConfigGuestFilesys()
fs.source_dir = "/root/lxc"
fs.target_dir = "/"
obj.add_device(fs)
xml = obj.to_xml()
self.assertXmlEqual(
xml, """
<domain type="lxc">
<uuid>b38a3f43-4be2-4046-897f-b67c2f5e0147</uuid>
<name>demo</name>
<memory>104857600</memory>
<vcpu>2</vcpu>
<os>
<type>exe</type>
<init>/sbin/init</init>
</os>
<devices>
<filesystem type="mount">
<source dir="/root/lxc"/>
<target dir="/"/>
</filesystem>
</devices>
</domain>""")
def get_config(self):
"""Returns the config instance for a guest
:returns: LibvirtConfigGuest instance
"""
config = vconfig.LibvirtConfigGuest()
config.parse_str(self._domain.XMLDesc(0))
return config
def _get_conf(self):
conf = vconfig.LibvirtConfigGuest()
conf.virt_type = "qemu"
conf.name = "fake-name"
conf.uuid = "fake-uuid"
conf.memory = 100 * 1024
conf.vcpus = 4
return conf
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.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>
<devices>
<disk type="file" device="disk">
<source file="/tmp/img"/>
<target bus="virtio" dev="/dev/vda"/>
</disk>
</devices>
</domain>""")
def _get_instance_xml(self, driver, net, mapping):
conf = vconfig.LibvirtConfigGuest()
conf.virt_type = "qemu"
conf.name = "fake-name"
conf.uuid = "fake-uuid"
conf.memory = 100 * 1024
conf.vcpus = 4
nic = driver.get_config(self.instance, net, mapping)
conf.add_device(nic)
return conf.to_xml()
def _get_instance_xml(self, driver, mapping=None):
conf = config.LibvirtConfigGuest()
conf.virt_type = "qemu"
conf.name = "fake-name"
conf.uuid = "fake-uuid"
conf.memory = 100 * 1024
conf.vcpus = 4
if mapping is None:
mapping = self.mapping
nic = driver.plug(self.instance, (self.net, mapping))
conf.add_device(nic)
return conf.to_xml()
def test_config_xen_hvm(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 = "hvm"
obj.os_loader = '/usr/lib/xen/boot/hvmloader'
obj.os_root = "root=xvda"
obj.os_cmdline = "console=xvc0"
obj.acpi = True
obj.apic = True
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>hvm</type>
<loader>/usr/lib/xen/boot/hvmloader</loader>
<cmdline>console=xvc0</cmdline>
<root>root=xvda</root>
</os>
<features>
<acpi/>
<apic/>
</features>
<devices>
<disk type="file" device="disk">
<source file="/tmp/img"/>
<target bus="xen" dev="/dev/xvda"/>
</disk>
</devices>
</domain>""")
def _get_instance_xml(self, driver, net, mapping, image_meta=None):
conf = vconfig.LibvirtConfigGuest()
conf.virt_type = "qemu"
conf.name = "fake-name"
conf.uuid = "fake-uuid"
conf.memory = 100 * 1024
conf.vcpus = 4
default_inst_type = flavors.get_default_flavor()
extra_specs = default_inst_type['extra_specs'].items()
quota_bandwith = self.bandwidth.items()
default_inst_type['extra_specs'] = dict(extra_specs + quota_bandwith)
nic = driver.get_config(self.instance, net, mapping, image_meta,
default_inst_type)
conf.add_device(nic)
return conf.to_xml()
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 get_all_devices(self, devtype=None):
"""Returns all devices for a guest
:param devtype: a LibvirtConfigGuestDevice subclass class
:returns: a list of LibvirtConfigGuestDevice instances
"""
try:
config = vconfig.LibvirtConfigGuest()
config.parse_str(self._domain.XMLDesc(0))
except Exception:
return []
devs = []
for dev in config.devices:
if (devtype is None or isinstance(dev, devtype)):
devs.append(dev)
return devs
def test_multiple_nics(self):
conf = vconfig.LibvirtConfigGuest()
conf.virt_type = "qemu"
conf.name = "fake-name"
conf.uuid = "fake-uuid"
conf.memory = 100 * 1024
conf.vcpus = 4
# Tests multiple nic configuration and that target_dev is
# set for each
nics = [{
'net_type': 'bridge',
'mac_addr': '00:00:00:00:00:0b',
'source_dev': 'b_source_dev',
'target_dev': 'b_target_dev'
}, {
'net_type': 'ethernet',
'mac_addr': '00:00:00:00:00:0e',
'source_dev': 'e_source_dev',
'target_dev': 'e_target_dev'
}, {
'net_type': 'direct',
'mac_addr': '00:00:00:00:00:0d',
'source_dev': 'd_source_dev',
'target_dev': 'd_target_dev'
}]
for nic in nics:
nic_conf = vconfig.LibvirtConfigGuestInterface()
nic_conf.net_type = nic['net_type']
nic_conf.target_dev = nic['target_dev']
nic_conf.mac_addr = nic['mac_addr']
nic_conf.source_dev = nic['source_dev']
conf.add_device(nic_conf)
xml = conf.to_xml()
doc = etree.fromstring(xml)
for nic in nics:
path = "./devices/interface/[@type='%s']" % nic['net_type']
node = doc.find(path)
self.assertEqual(nic['net_type'], node.get("type"))
self.assertEqual(nic['mac_addr'], node.find("mac").get("address"))
self.assertEqual(nic['target_dev'], node.find("target").get("dev"))
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 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 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
from nova.virt.libvirt import config as vconfig guest = vconfig.LibvirtConfigGuest() guest.vcpus = 4 print guest.to_xml()
