import time
import os.path
try:
from libvirt import libvirtError, VIR_DOMAIN_XML_SECURE, VIR_MIGRATE_LIVE, VIR_MIGRATE_UNSAFE, VIR_DOMAIN_RUNNING, \
VIR_DOMAIN_AFFECT_LIVE, VIR_DOMAIN_AFFECT_CONFIG
except:
from libvirt import libvirtError, VIR_DOMAIN_XML_SECURE, VIR_MIGRATE_LIVE
from vrtManager import util
from xml.etree import ElementTree
from datetime import datetime
from vrtManager.connection import wvmConnect
from vrtManager.storage import wvmStorage
from webvirtcloud.settings import QEMU_CONSOLE_TYPES
from webvirtcloud.settings import INSTANCE_VOLUME_DEFAULT_OWNER as owner
class wvmInstances(wvmConnect):
def get_instance_status(self, name):
inst = self.get_instance(name)
return inst.info()[0]
def get_instance_memory(self, name):
inst = self.get_instance(name)
mem = util.get_xml_path(inst.XMLDesc(0), "/domain/currentMemory")
return int(mem) / 1024
def get_instance_vcpu(self, name):
inst = self.get_instance(name)
cur_vcpu = util.get_xml_path(inst.XMLDesc(0), "/domain/vcpu/@current")
if cur_vcpu:
vcpu = cur_vcpu
else:
vcpu = util.get_xml_path(inst.XMLDesc(0), "/domain/vcpu")
return vcpu
def get_instance_managed_save_image(self, name):
inst = self.get_instance(name)
return inst.hasManagedSaveImage(0)
def get_uuid(self, name):
inst = self.get_instance(name)
return inst.UUIDString()
def start(self, name):
dom = self.get_instance(name)
dom.create()
def shutdown(self, name):
dom = self.get_instance(name)
dom.shutdown()
def force_shutdown(self, name):
dom = self.get_instance(name)
dom.destroy()
def managedsave(self, name):
dom = self.get_instance(name)
dom.managedSave(0)
def managed_save_remove(self, name):
dom = self.get_instance(name)
dom.managedSaveRemove(0)
def suspend(self, name):
dom = self.get_instance(name)
dom.suspend()
def resume(self, name):
dom = self.get_instance(name)
dom.resume()
def moveto(self, conn, name, live, unsafe, undefine, offline):
flags = 0
if live and conn.get_status() == 1:
flags |= VIR_MIGRATE_LIVE
if unsafe and conn.get_status() == 1:
flags |= VIR_MIGRATE_UNSAFE
dom = conn.get_instance(name)
xml = dom.XMLDesc(VIR_DOMAIN_XML_SECURE)
if not offline:
dom.migrate(self.wvm, flags, None, None, 0)
if undefine:
dom.undefine()
self.wvm.defineXML(xml)
def graphics_type(self, name):
inst = self.get_instance(name)
console_type = util.get_xml_path(inst.XMLDesc(0), "/domain/devices/graphics/@type")
if console_type is None:
return "None"
return console_type
def graphics_listen(self, name):
inst = self.get_instance(name)
listen_addr = util.get_xml_path(inst.XMLDesc(0), "/domain/devices/graphics/@listen")
if listen_addr is None:
listen_addr = util.get_xml_path(inst.XMLDesc(0), "/domain/devices/graphics/listen/@address")
if listen_addr is None:
return "None"
return listen_addr
def graphics_port(self, name):
inst = self.get_instance(name)
console_port = util.get_xml_path(inst.XMLDesc(0), "/domain/devices/graphics/@port")
if console_port is None:
return "None"
return console_port
def domain_name(self, name):
inst = self.get_instance(name)
domname = util.get_xml_path(inst.XMLDesc(0), "/domain/name")
if domname is None:
return "NoName"
return domname
def graphics_passwd(self, name):
inst = self.get_instance(name)
password = util.get_xml_path(inst.XMLDesc(VIR_DOMAIN_XML_SECURE), "/domain/devices/graphics/@passwd")
if password is None:
return "None"
return password
class wvmInstance(wvmConnect):
def __init__(self, host, login, passwd, conn, vname):
wvmConnect.__init__(self, host, login, passwd, conn)
self.instance = self.get_instance(vname)
def start(self):
self.instance.create()
def shutdown(self):
self.instance.shutdown()
def force_shutdown(self):
self.instance.destroy()
def managedsave(self):
self.instance.managedSave(0)
def managed_save_remove(self):
self.instance.managedSaveRemove(0)
def suspend(self):
self.instance.suspend()
def resume(self):
self.instance.resume()
def delete(self):
self.instance.undefine()
def _XMLDesc(self, flag):
return self.instance.XMLDesc(flag)
def _defineXML(self, xml):
return self.wvm.defineXML(xml)
def get_status(self):
return self.instance.info()[0]
def get_autostart(self):
return self.instance.autostart()
def set_autostart(self, flag):
return self.instance.setAutostart(flag)
def get_uuid(self):
return self.instance.UUIDString()
def get_vcpu(self):
vcpu = util.get_xml_path(self._XMLDesc(0), "/domain/vcpu")
return int(vcpu)
def get_cur_vcpu(self):
cur_vcpu = util.get_xml_path(self._XMLDesc(0), "/domain/vcpu/@current")
if cur_vcpu:
return int(cur_vcpu)
def get_memory(self):
mem = util.get_xml_path(self._XMLDesc(0), "/domain/memory")
return int(mem) / 1024
def get_cur_memory(self):
mem = util.get_xml_path(self._XMLDesc(0), "/domain/currentMemory")
return int(mem) / 1024
def get_title(self):
title = util.get_xml_path(self._XMLDesc(0), "/domain/title")
return title if title else ''
def get_filterrefs(self):
def filterrefs(ctx):
result = []
for net in ctx.xpath('/domain/devices/interface'):
filterref = net.xpath('filterref/@filter')
if filterref:
result.append(filterref[0])
return result
return util.get_xml_path(self._XMLDesc(0), func=filterrefs)
def get_description(self):
description = util.get_xml_path(self._XMLDesc(0), "/domain/description")
return description if description else ''
def get_max_memory(self):
return self.wvm.getInfo()[1] * 1048576
def get_max_cpus(self):
"""Get number of physical CPUs."""
hostinfo = self.wvm.getInfo()
pcpus = hostinfo[4] * hostinfo[5] * hostinfo[6] * hostinfo[7]
range_pcpus = xrange(1, int(pcpus + 1))
return range_pcpus
def get_net_device(self):
def get_mac_ipaddr(net, mac_host):
def fixed(doc):
for net in doc.xpath('/network/ip/dhcp/host'):
mac = net.xpath('@mac')[0]
host = net.xpath('@ip')[0]
if mac == mac_host:
return host
return None
return util.get_xml_path(net.XMLDesc(0), func=fixed)
def networks(ctx):
result = []
for net in ctx.xpath('/domain/devices/interface'):
mac_host = net.xpath('mac/@address')[0]
network_host = net.xpath('source/@network|source/@bridge|source/@dev')[0]
target_host = '' if not net.xpath('target/@dev') else net.xpath('target/@dev')[0]
filterref_host = '' if not net.xpath('filterref/@filter') else net.xpath('filterref/@filter')[0]
try:
net = self.get_network(network_host)
ip = get_mac_ipaddr(net, mac_host)
except libvirtError as e:
ip = None
result.append({'mac': mac_host, 'nic': network_host, 'target': target_host,'ip': ip, 'filterref': filterref_host})
return result
return util.get_xml_path(self._XMLDesc(0), func=networks)
def get_disk_devices(self):
def disks(doc):
result = []
dev = volume = storage = src_file = None
disk_format = used_size = disk_size = disk_cache = None
for disk in doc.xpath('/domain/devices/disk'):
device = disk.xpath('@device')[0]
if device == 'disk':
try:
dev = disk.xpath('target/@dev')[0]
bus = disk.xpath('target/@bus')[0]
src_file = disk.xpath('source/@file|source/@dev|source/@name|source/@volume')[0]
try:
disk_format = disk.xpath('driver/@type')[0]
except:
pass
try:
disk_cache = disk.xpath('driver/@cache')[0]
except:
pass
try:
vol = self.get_volume_by_path(src_file)
volume = vol.name()
disk_size = vol.info()[1]
used_size = vol.info()[2]
stg = vol.storagePoolLookupByVolume()
storage = stg.name()
except libvirtError:
volume = src_file
except:
pass
finally:
result.append(
{'dev': dev, 'bus': bus, 'image': volume, 'storage': storage, 'path': src_file,
'format': disk_format, 'size': disk_size, 'used': used_size, 'cache': disk_cache})
return result
return util.get_xml_path(self._XMLDesc(0), func=disks)
def get_media_devices(self):
def disks(doc):
result = []
dev = volume = storage = None
src_file = None
for media in doc.xpath('/domain/devices/disk'):
device = media.xpath('@device')[0]
if device == 'cdrom':
try:
dev = media.xpath('target/@dev')[0]
bus = media.xpath('target/@bus')[0]
try:
src_file = media.xpath('source/@file')[0]
vol = self.get_volume_by_path(src_file)
volume = vol.name()
stg = vol.storagePoolLookupByVolume()
storage = stg.name()
except:
src_file = None
volume = src_file
except:
pass
finally:
result.append({'dev': dev, 'image': volume, 'storage': storage, 'path': src_file, 'bus': bus})
return result
return util.get_xml_path(self._XMLDesc(0), func=disks)
def get_bootmenu(self):
menu = util.get_xml_path(self._XMLDesc(0), "/domain/os/bootmenu/@enable")
return True if menu == 'yes' else False
def set_bootmenu(self, flag):
tree = ElementTree.fromstring(self._XMLDesc(0))
os = tree.find('os')
menu = os.find("bootmenu")
if menu == None:
bootmenu = ElementTree.fromstring("")
os.append(bootmenu)
menu = os.find("bootmenu")
if flag == 0: # Disable
menu.attrib['enable'] = 'no'
elif flag == 1: # Enable
menu.attrib['enable'] = 'yes'
elif flag == -1: # Remove
os.remove(menu)
else:
raise Exception('Unknown boot menu option, please choose one of 0:disable, 1:enable, -1:remove')
xmldom = ElementTree.tostring(tree)
self._defineXML(xmldom)
def get_bootorder(self):
boot_order = {}
tree = ElementTree.fromstring(self._XMLDesc(0))
os = tree.find('os')
boot = os.findall('boot')
for idx, b in enumerate(boot):
dev = b.get('dev')
if dev == 'hd':
target = "disk"
type = "file"
elif dev == 'fd':
target = "floppy"
type = "file"
elif dev == 'cdrom':
target = "cdrom"
type = "file"
elif dev == 'network':
target = "network"
type = "network"
boot_order[idx] = {"type": type, "dev": dev, "target": target}
devices = tree.find('devices')
for dev in devices:
dev_target = dev_type = dev_device = dev_alias = None
boot_dev = dev.find('boot')
if boot_dev != None:
idx = boot_dev.get('order')
dev_type = dev.get('type')
dev_device = dev.get('device')
if dev_type == 'file':
dev_target = dev.find('target').get('dev')
elif dev_type == 'network':
dev_mac = dev.find('mac').get('address')
dev_device = "network"
dev_target = "nic-{}".format(dev_mac[9:])
elif dev_type == 'usb':
pass
boot_order[int(idx)-1] = {"type": dev_type, "dev": dev_device, "target": dev_target}
return boot_order
def set_bootorder(self, devorder):
if not devorder:
return
def remove_bootorder():
tree = ElementTree.fromstring(self._XMLDesc(0))
os = tree.find('os')
boot = os.findall('boot')
# Remove old style boot order
for b in boot:
os.remove(b)
# Remove rest of them
for dev in tree.find('devices'):
boot_dev = dev.find('boot')
if boot_dev != None:
dev.remove(boot_dev)
return tree
tree = remove_bootorder()
for idx, dev in devorder.items():
order = ElementTree.fromstring("".format(idx + 1))
if dev['type'] == 'disk':
devices = tree.findall("./devices/disk[@device='disk']")
for d in devices:
device = d.find("./target[@dev='{}']".format(dev['dev']))
if device != None:
d.append(order)
elif dev['type'] == 'cdrom':
devices = tree.findall("./devices/disk[@device='cdrom']")
for d in devices:
device = d.find("./target[@dev='{}']".format(dev['dev']))
if device != None:
d.append(order)
elif dev['type'] == 'network':
devices = tree.findall("./devices/interface[@type='network']")
for d in devices:
device = d.find("mac[@address='{}']".format(dev['dev']))
if device != None:
d.append(order)
else:
raise Exception('Invalid Device Type for boot order')
self._defineXML(ElementTree.tostring(tree))
def mount_iso(self, dev, image):
def attach_iso(dev, disk, vol):
if disk.get('device') == 'cdrom':
for elm in disk:
if elm.tag == 'target':
if elm.get('dev') == dev:
src_media = ElementTree.Element('source')
src_media.set('file', vol.path())
disk.insert(2, src_media)
return True
storages = self.get_storages(only_actives=True)
for storage in storages:
stg = self.get_storage(storage)
if stg.info()[0] != 0:
for img in stg.listVolumes():
if image == img:
vol = stg.storageVolLookupByName(image)
tree = ElementTree.fromstring(self._XMLDesc(0))
for disk in tree.findall('devices/disk'):
if attach_iso(dev, disk, vol):
break
if self.get_status() == 1:
xml = ElementTree.tostring(disk)
self.instance.attachDevice(xml)
xmldom = self._XMLDesc(VIR_DOMAIN_XML_SECURE)
if self.get_status() == 5:
xmldom = ElementTree.tostring(tree)
self._defineXML(xmldom)
def umount_iso(self, dev, image):
tree = ElementTree.fromstring(self._XMLDesc(0))
for disk in tree.findall('devices/disk'):
if disk.get('device') == 'cdrom':
for elm in disk:
if elm.tag == 'source':
if elm.get('file') == image:
src_media = elm
if elm.tag == 'target':
if elm.get('dev') == dev:
disk.remove(src_media)
if self.get_status() == 1:
xml_disk = ElementTree.tostring(disk)
self.instance.attachDevice(xml_disk)
xmldom = self._XMLDesc(VIR_DOMAIN_XML_SECURE)
if self.get_status() == 5:
xmldom = ElementTree.tostring(tree)
self._defineXML(xmldom)
def attach_disk(self, source, target, sourcetype='file', device='disk', driver='qemu', subdriver='raw', cache='none', targetbus='ide'):
tree = ElementTree.fromstring(self._XMLDesc(0))
xml_disk = """
""" % (sourcetype, device, driver, subdriver, cache, source, target, targetbus)
if self.get_status() == 5:
devices = tree.find('devices')
elm_disk = ElementTree.fromstring(xml_disk)
devices.append(elm_disk)
xmldom = ElementTree.tostring(tree)
self._defineXML(xmldom)
def detach_disk(self, dev):
tree = ElementTree.fromstring(self._XMLDesc(0))
for disk in tree.findall("./devices/disk"):
target = disk.find("target")
if target.get("dev") == dev:
devices = tree.find('devices')
devices.remove(disk)
if self.get_status() == 1:
xml_disk = ElementTree.tostring(disk)
ret = self.instance.detachDevice(xml_disk)
xmldom = self._XMLDesc(VIR_DOMAIN_XML_SECURE)
if self.get_status() == 5:
xmldom = ElementTree.tostring(tree)
break
self._defineXML(xmldom)
def cpu_usage(self):
cpu_usage = {}
if self.get_status() == 1:
nbcore = self.wvm.getInfo()[2]
cpu_use_ago = self.instance.info()[4]
time.sleep(1)
cpu_use_now = self.instance.info()[4]
diff_usage = cpu_use_now - cpu_use_ago
cpu_usage['cpu'] = 100 * diff_usage / (1 * nbcore * 10 ** 9L)
else:
cpu_usage['cpu'] = 0
return cpu_usage
def disk_usage(self):
devices = []
dev_usage = []
tree = ElementTree.fromstring(self._XMLDesc(0))
for disk in tree.findall('devices/disk'):
if disk.get('device') == 'disk':
dev_file = None
dev_bus = None
network_disk = True
for elm in disk:
if elm.tag == 'source':
if elm.get('protocol'):
dev_file = elm.get('protocol')
network_disk = True
if elm.get('file'):
dev_file = elm.get('file')
if elm.get('dev'):
dev_file = elm.get('dev')
if elm.tag == 'target':
dev_bus = elm.get('dev')
if (dev_file and dev_bus) is not None:
if network_disk:
dev_file = dev_bus
devices.append([dev_file, dev_bus])
for dev in devices:
if self.get_status() == 1:
rd_use_ago = self.instance.blockStats(dev[0])[1]
wr_use_ago = self.instance.blockStats(dev[0])[3]
time.sleep(1)
rd_use_now = self.instance.blockStats(dev[0])[1]
wr_use_now = self.instance.blockStats(dev[0])[3]
rd_diff_usage = rd_use_now - rd_use_ago
wr_diff_usage = wr_use_now - wr_use_ago
else:
rd_diff_usage = 0
wr_diff_usage = 0
dev_usage.append({'dev': dev[1], 'rd': rd_diff_usage, 'wr': wr_diff_usage})
return dev_usage
def net_usage(self):
devices = []
dev_usage = []
if self.get_status() == 1:
tree = ElementTree.fromstring(self._XMLDesc(0))
for target in tree.findall("devices/interface/target"):
devices.append(target.get("dev"))
for i, dev in enumerate(devices):
rx_use_ago = self.instance.interfaceStats(dev)[0]
tx_use_ago = self.instance.interfaceStats(dev)[4]
time.sleep(1)
rx_use_now = self.instance.interfaceStats(dev)[0]
tx_use_now = self.instance.interfaceStats(dev)[4]
rx_diff_usage = (rx_use_now - rx_use_ago) * 8
tx_diff_usage = (tx_use_now - tx_use_ago) * 8
dev_usage.append({'dev': i, 'rx': rx_diff_usage, 'tx': tx_diff_usage})
else:
for i, dev in enumerate(self.get_net_device()):
dev_usage.append({'dev': i, 'rx': 0, 'tx': 0})
return dev_usage
def get_telnet_port(self):
telnet_port = None
service_port = None
tree = ElementTree.fromstring(self._XMLDesc(0))
for console in tree.findall('devices/console'):
if console.get('type') == 'tcp':
for elm in console:
if elm.tag == 'source':
if elm.get('service'):
service_port = elm.get('service')
if elm.tag == 'protocol':
if elm.get('type') == 'telnet':
if service_port is not None:
telnet_port = service_port
return telnet_port
def get_console_listen_addr(self):
listen_addr = util.get_xml_path(self._XMLDesc(0), "/domain/devices/graphics/@listen")
if listen_addr is None:
listen_addr = util.get_xml_path(self._XMLDesc(0), "/domain/devices/graphics/listen/@address")
if listen_addr is None:
return "127.0.0.1"
return listen_addr
def set_console_listen_addr(self, listen_addr):
xml = self._XMLDesc(VIR_DOMAIN_XML_SECURE)
root = ElementTree.fromstring(xml)
console_type = self.get_console_type()
try:
graphic = root.find("devices/graphics[@type='%s']" % console_type)
except SyntaxError:
# Little fix for old version ElementTree
graphic = root.find("devices/graphics")
if graphic is None:
return False
listen = graphic.find("listen[@type='address']")
if listen is None:
return False
if listen_addr:
graphic.set("listen", listen_addr)
listen.set("address", listen_addr)
else:
try:
graphic.attrib.pop("listen")
listen.attrib.pop("address")
except:
pass
newxml = ElementTree.tostring(root)
return self._defineXML(newxml)
def get_console_socket(self):
socket = util.get_xml_path(self._XMLDesc(0), "/domain/devices/graphics/@socket")
return socket
def get_console_type(self):
console_type = util.get_xml_path(self._XMLDesc(0),"/domain/devices/graphics/@type")
return console_type
def set_console_type(self, console_type):
current_type = self.get_console_type()
if current_type == console_type:
return True
if console_type == '' or console_type not in QEMU_CONSOLE_TYPES:
return False
xml = self._XMLDesc(VIR_DOMAIN_XML_SECURE)
root = ElementTree.fromstring(xml)
try:
graphic = root.find("devices/graphics[@type='%s']" % current_type)
except SyntaxError:
# Little fix for old version ElementTree
graphic = root.find("devices/graphics")
graphic.set('type', console_type)
newxml = ElementTree.tostring(root)
self._defineXML(newxml)
def get_console_port(self, console_type=None):
if console_type is None:
console_type = self.get_console_type()
port = util.get_xml_path(self._XMLDesc(0),
"/domain/devices/graphics[@type='%s']/@port" % console_type)
return port
def get_console_websocket_port(self):
console_type = self.get_console_type()
websocket_port = util.get_xml_path(self._XMLDesc(0),
"/domain/devices/graphics[@type='%s']/@websocket" % console_type)
return websocket_port
def get_console_passwd(self):
return util.get_xml_path(self._XMLDesc(VIR_DOMAIN_XML_SECURE),
"/domain/devices/graphics/@passwd")
def set_console_passwd(self, passwd):
xml = self._XMLDesc(VIR_DOMAIN_XML_SECURE)
root = ElementTree.fromstring(xml)
console_type = self.get_console_type()
try:
graphic = root.find("devices/graphics[@type='%s']" % console_type)
except SyntaxError:
# Little fix for old version ElementTree
graphic = root.find("devices/graphics")
if graphic is None:
return False
if passwd:
graphic.set('passwd', passwd)
else:
try:
graphic.attrib.pop('passwd')
except:
pass
newxml = ElementTree.tostring(root)
return self._defineXML(newxml)
def set_console_keymap(self, keymap):
xml = self._XMLDesc(VIR_DOMAIN_XML_SECURE)
root = ElementTree.fromstring(xml)
console_type = self.get_console_type()
try:
graphic = root.find("devices/graphics[@type='%s']" % console_type)
except SyntaxError:
# Little fix for old version ElementTree
graphic = root.find("devices/graphics")
if keymap:
graphic.set('keymap', keymap)
else:
try:
graphic.attrib.pop('keymap')
except:
pass
newxml = ElementTree.tostring(root)
self._defineXML(newxml)
def get_console_keymap(self):
return util.get_xml_path(self._XMLDesc(VIR_DOMAIN_XML_SECURE),
"/domain/devices/graphics/@keymap") or ''
def resize(self, cur_memory, memory, cur_vcpu, vcpu, disks=[]):
"""
Function change ram and cpu on vds.
"""
memory = int(memory) * 1024
cur_memory = int(cur_memory) * 1024
# if dom is running change only ram
if self.get_status() == VIR_DOMAIN_RUNNING:
self.set_memory(cur_memory, VIR_DOMAIN_AFFECT_LIVE)
self.set_memory(cur_memory, VIR_DOMAIN_AFFECT_CONFIG)
return
xml = self._XMLDesc(VIR_DOMAIN_XML_SECURE)
tree = ElementTree.fromstring(xml)
set_mem = tree.find('memory')
set_mem.text = str(memory)
set_cur_mem = tree.find('currentMemory')
set_cur_mem.text = str(cur_memory)
set_vcpu = tree.find('vcpu')
set_vcpu.text = vcpu
set_vcpu.set('current', cur_vcpu)
for disk in disks:
source_dev = disk['path']
vol = self.get_volume_by_path(source_dev)
vol.resize(disk['size_new'])
new_xml = ElementTree.tostring(tree)
self._defineXML(new_xml)
def get_iso_media(self):
iso = []
storages = self.get_storages(only_actives=True)
for storage in storages:
stg = self.get_storage(storage)
if stg.info()[0] != 0:
try:
stg.refresh(0)
except:
pass
for img in stg.listVolumes():
if img.endswith('.iso'):
iso.append(img)
return iso
def delete_all_disks(self):
disks = self.get_disk_devices()
for disk in disks:
vol = self.get_volume_by_path(disk.get('path'))
vol.delete(0)
def _snapshotCreateXML(self, xml, flag):
self.instance.snapshotCreateXML(xml, flag)
def create_snapshot(self, name):
xml = """
%s
shutoff
%d""" % (name, time.time())
xml += self._XMLDesc(VIR_DOMAIN_XML_SECURE)
xml += """0
"""
self._snapshotCreateXML(xml, 0)
def get_snapshot(self):
snapshots = []
snapshot_list = self.instance.snapshotListNames(0)
for snapshot in snapshot_list:
snap = self.instance.snapshotLookupByName(snapshot, 0)
snap_time_create = util.get_xml_path(snap.getXMLDesc(0), "/domainsnapshot/creationTime")
snapshots.append({'date': datetime.fromtimestamp(int(snap_time_create)), 'name': snapshot})
return snapshots
def snapshot_delete(self, snapshot):
snap = self.instance.snapshotLookupByName(snapshot, 0)
snap.delete(0)
def snapshot_revert(self, snapshot):
snap = self.instance.snapshotLookupByName(snapshot, 0)
self.instance.revertToSnapshot(snap, 0)
def get_managed_save_image(self):
return self.instance.hasManagedSaveImage(0)
def get_wvmStorage(self, pool):
storage = wvmStorage(self.host,
self.login,
self.passwd,
self.conn,
pool)
return storage
def fix_mac(self, mac):
if ":" in mac:
return mac
# if mac does not contain ":", try to split into tuples and join with ":"
n = 2
mac_tuples = [mac[i:i+n] for i in range(0, len(mac), n)]
return ':'.join(mac_tuples)
def clone_instance(self, clone_data):
clone_dev_path = []
xml = self._XMLDesc(VIR_DOMAIN_XML_SECURE)
tree = ElementTree.fromstring(xml)
name = tree.find('name')
name.text = clone_data['name']
uuid = tree.find('uuid')
tree.remove(uuid)
for num, net in enumerate(tree.findall('devices/interface')):
elm = net.find('mac')
mac_address = self.fix_mac(clone_data['clone-net-mac-' + str(num)])
elm.set('address', mac_address)
for disk in tree.findall('devices/disk'):
if disk.get('device') == 'disk':
elm = disk.find('target')
device_name = elm.get('dev')
if device_name:
target_file = clone_data['disk-' + device_name]
try:
meta_prealloc = clone_data['meta-' + device_name]
except:
meta_prealloc = False
elm.set('dev', device_name)
elm = disk.find('source')
source_file = elm.get('file')
if source_file:
clone_dev_path.append(source_file)
clone_path = os.path.join(os.path.dirname(source_file), target_file)
elm.set('file', clone_path)
vol = self.get_volume_by_path(source_file)
vol_format = util.get_xml_path(vol.XMLDesc(0), "/volume/target/format/@type")
if vol_format == 'qcow2' and meta_prealloc:
meta_prealloc = True
vol_clone_xml = """
%s
0
0
%s
%s
0644
1.1
""" % (target_file, vol_format, owner['uid'], owner['guid'])
stg = vol.storagePoolLookupByVolume()
stg.createXMLFrom(vol_clone_xml, vol, meta_prealloc)
source_protocol = elm.get('protocol')
if source_protocol == 'rbd':
source_name = elm.get('name')
clone_name = "%s/%s" % (os.path.dirname(source_name), target_file)
elm.set('name', clone_name)
vol = self.get_volume_by_path(source_name)
vol_format = util.get_xml_path(vol.XMLDesc(0), "/volume/target/format/@type")
vol_clone_xml = """
%s
0
0
""" % (target_file, vol_format)
stg = vol.storagePoolLookupByVolume()
stg.createXMLFrom(vol_clone_xml, vol, meta_prealloc)
source_dev = elm.get('dev')
if source_dev:
clone_path = os.path.join(os.path.dirname(source_dev), target_file)
elm.set('dev', clone_path)
vol = self.get_volume_by_path(source_dev)
stg = vol.storagePoolLookupByVolume()
vol_name = util.get_xml_path(vol.XMLDesc(0), "/volume/name")
pool_name = util.get_xml_path(stg.XMLDesc(0), "/pool/name")
storage = self.get_wvmStorage(pool_name)
storage.clone_volume(vol_name, target_file)
options = {
'title': clone_data.get('clone-title', ''),
'description': clone_data.get('clone-description', ''),
}
self._set_options(tree, options)
self._defineXML(ElementTree.tostring(tree))
return self.get_instance(clone_data['name']).UUIDString()
def get_bridge_name(self, source, source_type='net'):
if source_type == 'iface':
iface = self.get_iface(source)
bridge_name = iface.name()
else:
net = self.get_network(source)
bridge_name = net.bridgeName()
return bridge_name
def add_network(self, mac_address, source, source_type='net', interface_type='bridge', model='virtio', nwfilter=None):
tree = ElementTree.fromstring(self._XMLDesc(0))
bridge_name = self.get_bridge_name(source, source_type)
xml_interface = """
""" % (interface_type, mac_address, bridge_name, model)
if nwfilter:
xml_interface += """
""" % nwfilter
xml_interface += """"""
if self.get_status() == 5:
devices = tree.find('devices')
elm_interface = ElementTree.fromstring(xml_interface)
devices.append(elm_interface)
xmldom = ElementTree.tostring(tree)
self._defineXML(xmldom)
def delete_network(self, mac_address):
tree = ElementTree.fromstring(self._XMLDesc(0))
devices = tree.find('devices')
for interface in tree.findall('devices/interface'):
source = interface.find('mac')
if source.get('address', '') == mac_address:
source = None
devices.remove(interface)
new_xml = ElementTree.tostring(tree)
self._defineXML(new_xml)
def change_network(self, network_data):
xml = self._XMLDesc(VIR_DOMAIN_XML_SECURE)
tree = ElementTree.fromstring(xml)
for num, interface in enumerate(tree.findall('devices/interface')):
net_source = network_data['net-source-' + str(num)]
net_source_type = network_data['net-source-' + str(num) + '-type']
net_mac = network_data['net-mac-' + str(num)]
net_filter = network_data['net-nwfilter-' + str(num)]
bridge_name = self.get_bridge_name(net_source, net_source_type)
if interface.get('type') == 'bridge':
source = interface.find('mac')
source.set('address', net_mac)
source = interface.find('source')
source.set('bridge', bridge_name)
source = interface.find('filterref')
if net_filter:
if source is not None: source.set('filter', net_filter)
else:
element = ElementTree.Element("filterref")
element.attrib['filter'] = net_filter
interface.append(element)
else:
if source is not None: interface.remove(source)
elif interface.get('type') == 'network':
source = interface.find('mac')
source.set('address', net_mac)
source = interface.find('source')
source.set('network', net_source)
source = interface.find('filterref')
if net_filter:
if source is not None: source.set('filter', net_filter)
else:
element = ElementTree.Element("filterref")
element.attrib['filter'] = net_filter
interface.append(element)
else:
if source is not None: interface.remove(source)
new_xml = ElementTree.tostring(tree)
self._defineXML(new_xml)
def _set_options(self, tree, options):
for o in ['title', 'description']:
option = tree.find(o)
option_value = options.get(o, '').strip()
if not option_value:
if not option is None:
tree.remove(option)
else:
if option is None:
option = ElementTree.SubElement(tree, o)
option.text = option_value
def set_options(self, options):
"""
Function change description, title
"""
xml = self._XMLDesc(VIR_DOMAIN_XML_SECURE)
tree = ElementTree.fromstring(xml)
self._set_options(tree, options)
new_xml = ElementTree.tostring(tree)
self._defineXML(new_xml)
def set_memory(self, size, flags=0):
self.instance.setMemoryFlags(size, flags)