def _generate_random_mac(self):
if self.conn and not self._random_mac:
found = False
for ignore in range(256):
self._random_mac = _util.randomMAC(self.conn.getType().lower())
ret = self.is_conflict_net(self.conn, self._random_mac)
if ret[1] is not None:
continue
found = True
break
if not found:
logging.debug("Failed to generate non-conflicting MAC")
return self._random_mac
def _generate_random_mac(self):
if self.conn and not self._random_mac:
found = False
for ignore in range(256):
self._random_mac = _util.randomMAC(self.conn.getType().lower())
ret = self.is_conflict_net(self.conn, self._random_mac)
if ret[1] is not None:
continue
found = True
break
if not found:
logging.debug("Failed to generate non-conflicting MAC")
return self._random_mac
def setup(self, conn=None):
"""
DEPRECATED: Please use setup_dev instead
"""
if not conn:
conn = self.conn
if self.macaddr is None:
while 1:
self.macaddr = _util.randomMAC(type=conn.getType().lower())
if self.is_conflict_net(conn)[1] is not None:
continue
else:
break
else:
ret, msg = self.is_conflict_net(conn)
if msg is not None:
if ret is False:
logging.warning(msg)
else:
raise RuntimeError(msg)
if not self.bridge and self.type == "bridge":
self.bridge = _util.default_bridge2(self.conn)
def setup(self, conn=None):
"""
DEPRECATED: Please use setup_dev instead
"""
if not conn:
conn = self.conn
if self.macaddr is None:
while 1:
self.macaddr = _util.randomMAC(type=conn.getType().lower())
if self.is_conflict_net(conn)[1] is not None:
continue
else:
break
else:
ret, msg = self.is_conflict_net(conn)
if msg is not None:
if ret is False:
logging.warning(msg)
else:
raise RuntimeError(msg)
if not self.bridge and self.type == "bridge":
self.bridge = _util.default_bridge2(self.conn)
def setup_clone(self):
"""
Validate and set up all parameters needed for the new (clone) VM
"""
logging.debug("Validating clone parameters.")
self._clone_xml = self.original_xml
# XXX: Make sure a clone name has been specified? or generate one?
logging.debug("Clone paths: %s" % (self._clone_devices))
# We simply edit the original VM xml in place
doc = libxml2.parseDoc(self._clone_xml)
ctx = doc.xpathNewContext()
# changing name
node = ctx.xpathEval("/domain/name")
node[0].setContent(self._clone_name)
# We always have a UUID since one is generated at init time
node = ctx.xpathEval("/domain/uuid")
node[0].setContent(self._clone_uuid)
# changing mac
count = ctx.xpathEval("count(/domain/devices/interface/mac)")
for i in range(1, int(count + 1)):
base_xpath = "/domain/devices/interface[%d]" % i
base_node = ctx.xpathEval(base_xpath)[0]
node = ctx.xpathEval(base_xpath + "/mac/@address")
node = node and node[0] or None
if not node:
node = base_node.newChild(None, "mac", None)
node.setProp("address", "tmp")
node = ctx.xpathEval(base_xpath + "/mac/@address")[0]
mac = None
try:
mac = self._clone_mac[i - 1]
except Exception:
while 1:
mac = _util.randomMAC(self.original_conn.getType().lower())
dummy, msg = self._check_mac(mac)
if msg is not None:
continue
else:
break
node.setContent(mac)
if len(self.clone_virtual_disks) < len(self.original_virtual_disks):
raise ValueError(
_("More disks to clone than new paths specified. "
"(%(passed)d specified, %(need)d needed") % {
"passed": len(self.clone_virtual_disks),
"need": len(self.original_virtual_disks)
})
# Changing storage XML
for i in range(0, len(self.original_virtual_disks)):
orig_disk = self._original_virtual_disks[i]
clone_disk = self._clone_virtual_disks[i]
self._change_storage_xml(ctx, orig_disk, clone_disk)
# Sync 'size' between the two
if orig_disk.size:
clone_disk.size = orig_disk.size
# Setup proper cloning inputs for the new virtual disks
if orig_disk.vol_object and clone_disk.vol_install:
# Source and dest are managed. If they share the same pool,
# replace vol_install with a CloneVolume instance, otherwise
# simply set input_vol on the dest vol_install
if (clone_disk.vol_install.pool.name() == orig_disk.vol_object.
storagePoolLookupByVolume().name()):
newname = clone_disk.vol_install.name
clone_disk.vol_install = Storage.CloneVolume(
newname, orig_disk.vol_object)
else:
clone_disk.vol_install.input_vol = orig_disk.vol_object
elif not self.preserve_dest_disks:
clone_disk.clone_path = orig_disk.path
# Save altered clone xml
self._clone_xml = str(doc)
ctx.xpathFreeContext()
doc.freeDoc()
def setup_clone(self):
"""
Validate and set up all parameters needed for the new (clone) VM
"""
logging.debug("Validating clone parameters.")
self._clone_xml = self.original_xml
if len(self.clone_virtual_disks) < len(self.original_virtual_disks):
raise ValueError(_("More disks to clone than new paths specified. "
"(%(passed)d specified, %(need)d needed") %
{"passed" : len(self.clone_virtual_disks),
"need" : len(self.original_virtual_disks) })
logging.debug("Clone paths: %s", self._clone_devices)
self._guest.name = self._clone_name
self._guest.uuid = self._clone_uuid
self._clone_mac.reverse()
for dev in self._guest.get_devices("graphics"):
if dev.port and dev.port != -1:
logging.warn(_("Setting the graphics device port to autoport, "
"in order to avoid conflicting."))
dev.port = -1
for iface in self._guest.get_devices("interface"):
iface.target_dev = None
if self._clone_mac:
mac = self._clone_mac.pop()
else:
while 1:
mac = _util.randomMAC(self.original_conn.getType().lower(),
conn=self.original_conn)
dummy, msg = self._check_mac(mac)
if msg is not None:
continue
else:
break
iface.macaddr = mac
# Changing storage XML
for i in range(len(self._original_virtual_disks)):
orig_disk = self._original_virtual_disks[i]
clone_disk = self._clone_virtual_disks[i]
for disk in self._guest.get_devices("disk"):
if disk.target == orig_disk.target:
xmldisk = disk
if clone_disk.vol_object:
# XXX We could always do this with vol upload?
# Special case: non remote cloning of a guest using
# managed block devices: fall back to local cloning if
# we have permissions to do so. This validation check
# caused a few bug reports in a short period of time,
# so must be a common case.
if (clone_disk.is_remote() or
clone_disk.type != clone_disk.TYPE_BLOCK or
not orig_disk.path or
not os.access(orig_disk.path, os.R_OK) or
not clone_disk.path or
not os.access(clone_disk.path, os.W_OK)):
raise RuntimeError(
_("Clone onto existing storage volume is not "
"currently supported: '%s'") % clone_disk.path)
# Sync 'size' between the two
if orig_disk.size:
clone_disk.size = orig_disk.size
# Setup proper cloning inputs for the new virtual disks
if orig_disk.vol_object and clone_disk.vol_install:
# Source and dest are managed. If they share the same pool,
# replace vol_install with a CloneVolume instance, otherwise
# simply set input_vol on the dest vol_install
if (clone_disk.vol_install.pool.name() ==
orig_disk.vol_object.storagePoolLookupByVolume().name()):
newname = clone_disk.vol_install.name
clone_disk.vol_install = Storage.CloneVolume(newname,
orig_disk.vol_object)
else:
clone_disk.vol_install.input_vol = orig_disk.vol_object
elif not self.preserve_dest_disks:
clone_disk.clone_path = orig_disk.path
# Change the XML
xmldisk.path = None
xmldisk.type = clone_disk.type
xmldisk.path = clone_disk.path
xmldisk.driver_type = orig_disk.driver_type
# Save altered clone xml
self._clone_xml = self._guest.get_xml_config()
logging.debug("Clone guest xml is\n%s", self._clone_xml)
def setup_clone(self):
"""
Validate and set up all parameters needed for the new (clone) VM
"""
logging.debug("Validating clone parameters.")
self._clone_xml = self.original_xml
# XXX: Make sure a clone name has been specified? or generate one?
logging.debug("Clone paths: %s", self._clone_devices)
# We simply edit the original VM xml in place
doc = libxml2.parseDoc(self._clone_xml)
ctx = doc.xpathNewContext()
# changing name
node = ctx.xpathEval("/domain/name")
node[0].setContent(self._clone_name)
# We always have a UUID since one is generated at init time
node = ctx.xpathEval("/domain/uuid")
node[0].setContent(self._clone_uuid)
# changing mac
count = ctx.xpathEval("count(/domain/devices/interface/mac)")
for i in range(1, int(count + 1)):
base_xpath = "/domain/devices/interface[%d]" % i
base_node = ctx.xpathEval(base_xpath)[0]
node = ctx.xpathEval(base_xpath + "/mac/@address")
node = node and node[0] or None
if not node:
node = base_node.newChild(None, "mac", None)
node.setProp("address", "tmp")
node = ctx.xpathEval(base_xpath + "/mac/@address")[0]
mac = None
try:
mac = self._clone_mac[i - 1]
except Exception:
while 1:
mac = _util.randomMAC(self.original_conn.getType().lower())
dummy, msg = self._check_mac(mac)
if msg is not None:
continue
else:
break
node.setContent(mac)
if len(self.clone_virtual_disks) < len(self.original_virtual_disks):
raise ValueError(_("More disks to clone than new paths specified. "
"(%(passed)d specified, %(need)d needed") %
{"passed" : len(self.clone_virtual_disks),
"need" : len(self.original_virtual_disks) })
# Changing storage XML
for i in range(0, len(self.original_virtual_disks)):
orig_disk = self._original_virtual_disks[i]
clone_disk = self._clone_virtual_disks[i]
self._change_storage_xml(ctx, orig_disk, clone_disk)
# Sync 'size' between the two
if orig_disk.size:
clone_disk.size = orig_disk.size
# Setup proper cloning inputs for the new virtual disks
if orig_disk.vol_object and clone_disk.vol_install:
# Source and dest are managed. If they share the same pool,
# replace vol_install with a CloneVolume instance, otherwise
# simply set input_vol on the dest vol_install
if (clone_disk.vol_install.pool.name() ==
orig_disk.vol_object.storagePoolLookupByVolume().name()):
newname = clone_disk.vol_install.name
clone_disk.vol_install = Storage.CloneVolume(newname,
orig_disk.vol_object)
else:
clone_disk.vol_install.input_vol = orig_disk.vol_object
elif not self.preserve_dest_disks:
clone_disk.clone_path = orig_disk.path
# Save altered clone xml
self._clone_xml = str(doc)
ctx.xpathFreeContext()
doc.freeDoc()
