def testDisks(self):
"""Generate XML from a VM and verify the disk specifications"""
test_vm = vm.VM(
name='something',
memory=1000000000,
disks=['/home/ebroder/block-dev', '/home/ebroder/file.img'],
network='debmarshal-1',
mac='AA:BB:CC:DD:EE:FF',
arch='x86_64',
extra={})
self.mox.StubOutWithMock(utils, 'diskIsBlockDevice')
utils.diskIsBlockDevice('/home/ebroder/block-dev').AndReturn(True)
utils.diskIsBlockDevice('/home/ebroder/file.img').AndReturn(False)
self.mox.ReplayAll()
xml = base.Hypervisor.domainXML(test_vm)
self.assertEqual(len(xml.xpath('/domain/devices/disk')), 2)
disk = xml.xpath('/domain/devices/disk[target/@dev="hda"]')[0]
self.assertEqual(disk.xpath('string(@type)'), 'block')
self.assertEqual(len(disk.xpath('source')), 1)
self.assertEqual(disk.xpath('string(source/@dev)'), test_vm.disks[0])
disk = xml.xpath('/domain/devices/disk[target/@dev="hdb"]')[0]
self.assertEqual(len(disk.xpath('source')), 1)
self.assertEqual(disk.xpath('string(@type)'), 'file')
self.assertEqual(len(disk.xpath('source')), 1)
self.assertEqual(disk.xpath('string(source/@file)'), test_vm.disks[1])
def testDisks(self):
"""Generate XML from a VM and verify the disk specifications"""
test_vm = vm.VM(name='something',
memory=1000000000,
disks=['/home/ebroder/block-dev',
'/home/ebroder/file.img'],
network='debmarshal-1',
mac='AA:BB:CC:DD:EE:FF',
arch='x86_64',
extra={})
self.mox.StubOutWithMock(utils, 'diskIsBlockDevice')
utils.diskIsBlockDevice('/home/ebroder/block-dev').AndReturn(True)
utils.diskIsBlockDevice('/home/ebroder/file.img').AndReturn(False)
self.mox.ReplayAll()
xml = base.Hypervisor.domainXML(test_vm)
self.assertEqual(len(xml.xpath('/domain/devices/disk')), 2)
disk = xml.xpath('/domain/devices/disk[target/@dev="hda"]')[0]
self.assertEqual(disk.xpath('string(@type)'), 'block')
self.assertEqual(len(disk.xpath('source')), 1)
self.assertEqual(disk.xpath('string(source/@dev)'), test_vm.disks[0])
disk = xml.xpath('/domain/devices/disk[target/@dev="hdb"]')[0]
self.assertEqual(len(disk.xpath('source')), 1)
self.assertEqual(disk.xpath('string(@type)'), 'file')
self.assertEqual(len(disk.xpath('source')), 1)
self.assertEqual(disk.xpath('string(source/@file)'), test_vm.disks[1])
def testFile(self):
self.mox.StubOutWithMock(os, 'stat')
os.stat('/home/ebroder/root.img').AndReturn(posix.stat_result([
0100644, 0, 0, 0, 0, 0, 0, 0, 0, 0]))
self.mox.ReplayAll()
self.assertEqual(utils.diskIsBlockDevice('/home/ebroder/root.img'),
False)
def testFile(self):
self.mox.StubOutWithMock(os, 'stat')
os.stat('/home/ebroder/root.img').AndReturn(
posix.stat_result([0100644, 0, 0, 0, 0, 0, 0, 0, 0, 0]))
self.mox.ReplayAll()
self.assertEqual(utils.diskIsBlockDevice('/home/ebroder/root.img'),
False)
def testBlockDevice(self):
self.mox.StubOutWithMock(os, 'stat')
os.stat('/home/ebroder/root.img').AndReturn(posix.stat_result([
# st_mode is the first argument
060644, 0, 0, 0, 0, 0, 0, 0, 0, 0]))
self.mox.ReplayAll()
self.assertEqual(utils.diskIsBlockDevice('/home/ebroder/root.img'),
True)
def domainXML(cls, vm):
"""Generate the XML to pass to libvirt to create a new domain.
This will generate the portions of the XML that are common to all
hypervisors; subclasses of Hypervisor will add on elements and
properties to the XML tree returned from their superclass.
Args:
vm: an instance of debmarshal.vm.VM with the parameters for the
VM
Returns:
The XML specification for the domain specified by vm as an
lxml.etree.Element object
"""
xml = etree.Element('domain')
etree.SubElement(xml, 'name').text = vm.name
etree.SubElement(xml, 'memory').text = str(vm.memory)
xml_os = etree.SubElement(xml, 'os')
if 'kernel' in vm.extra:
etree.SubElement(xml_os, 'kernel').text = vm.extra['kernel']
etree.SubElement(xml_os, 'initrd').text = vm.extra['initrd']
if vm.extra.get('cmdline'):
etree.SubElement(xml_os, 'cmdline').text = vm.extra['cmdline']
if 'on_poweroff' in vm.extra:
etree.SubElement(xml, 'on_poweroff').text = vm.extra['on_poweroff']
if 'on_reboot' in vm.extra:
etree.SubElement(xml, 'on_reboot').text = vm.extra['on_reboot']
devices = etree.SubElement(xml, 'devices')
for disk_num, disk in enumerate(vm.disks):
xml_disk = etree.SubElement(devices, 'disk')
if utils.diskIsBlockDevice(disk):
xml_disk.set('type', 'block')
etree.SubElement(xml_disk, 'source', dev=disk)
else:
xml_disk.set('type', 'file')
etree.SubElement(xml_disk, 'source', file=disk)
disk_letter = chr(disk_num + ord('a'))
etree.SubElement(xml_disk, 'target', dev='hd%s' % disk_letter)
xml_net = etree.SubElement(devices, 'interface', type='network')
etree.SubElement(xml_net, 'source', network=vm.network)
etree.SubElement(xml_net, 'mac', address=vm.mac)
return xml
def domainXML(cls, vm):
"""Generate the XML to pass to libvirt to create a new domain.
This will generate the portions of the XML that are common to all
hypervisors; subclasses of Hypervisor will add on elements and
properties to the XML tree returned from their superclass.
Args:
vm: an instance of debmarshal.vm.VM with the parameters for the
VM
Returns:
The XML specification for the domain specified by vm as an
lxml.etree.Element object
"""
xml = etree.Element('domain')
etree.SubElement(xml, 'name').text = vm.name
etree.SubElement(xml, 'memory').text = str(vm.memory)
xml_os = etree.SubElement(xml, 'os')
if 'kernel' in vm.extra:
etree.SubElement(xml_os, 'kernel').text = vm.extra['kernel']
etree.SubElement(xml_os, 'initrd').text = vm.extra['initrd']
if vm.extra.get('cmdline'):
etree.SubElement(xml_os, 'cmdline').text = vm.extra['cmdline']
if 'on_poweroff' in vm.extra:
etree.SubElement(xml, 'on_poweroff').text = vm.extra['on_poweroff']
if 'on_reboot' in vm.extra:
etree.SubElement(xml, 'on_reboot').text = vm.extra['on_reboot']
devices = etree.SubElement(xml, 'devices')
for disk_num, disk in enumerate(vm.disks):
xml_disk = etree.SubElement(devices, 'disk')
if utils.diskIsBlockDevice(disk):
xml_disk.set('type', 'block')
etree.SubElement(xml_disk, 'source', dev=disk)
else:
xml_disk.set('type', 'file')
etree.SubElement(xml_disk, 'source', file=disk)
disk_letter = chr(disk_num + ord('a'))
etree.SubElement(xml_disk, 'target', dev='hd%s' % disk_letter)
xml_net = etree.SubElement(devices, 'interface', type='network')
etree.SubElement(xml_net, 'source', network=vm.network)
etree.SubElement(xml_net, 'mac', address=vm.mac)
return xml
def testBlockDevice(self):
self.mox.StubOutWithMock(os, 'stat')
os.stat('/home/ebroder/root.img').AndReturn(
posix.stat_result([
# st_mode is the first argument
060644,
0,
0,
0,
0,
0,
0,
0,
0,
0
]))
self.mox.ReplayAll()
self.assertEqual(utils.diskIsBlockDevice('/home/ebroder/root.img'),
True)