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CLOUDSTACK-8765: fix vm migration failure due to different dev name on KVM

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This commit is contained in:
Wei Zhou 2015-08-24 14:28:13 +02:00
parent 82df5b156b
commit bb8f7c652e
1 changed files with 12 additions and 3 deletions
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15
agent/bindir/libvirtqemuhook.in
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@ -16,6 +16,7 @@
# specific language governing permissions and limitations
# under the License.
import sys
import re
from xml.dom.minidom import parse
from cloudutils.configFileOps import configFileOps
from cloudutils.networkConfig import networkConfig
@ -24,21 +25,29 @@ def isOldStyleBridge(brName):
return True
else:
return False
def isNewStyleBridge(brName):
if re.match(r"br(\w+)-(\d+)", brName) == None:
return False
else:
return True
def getGuestNetworkDevice():
netlib = networkConfig()
cfo = configFileOps("/etc/cloudstack/agent/agent.properties")
guestDev = cfo.getEntry("guest.network.device")
enslavedDev = netlib.getEnslavedDev(guestDev, 1)
return enslavedDev
return enslavedDev.split(".")[0]
def handleMigrateBegin():
try:
domain = parse(sys.stdin)
for interface in domain.getElementsByTagName("interface"):
source = interface.getElementsByTagName("source")[0]
bridge = source.getAttribute("bridge")
if not isOldStyleBridge(bridge):
if isOldStyleBridge(bridge):
vlanId = bridge.replace("cloudVirBr","")
elif isNewStyleBridge(bridge):
vlanId = re.sub(r"br(\w+)-","",bridge)
else:
continue
vlanId = bridge.replace("cloudVirBr","")
phyDev = getGuestNetworkDevice()
newBrName="br" + phyDev + "-" + vlanId
source.setAttribute("bridge", newBrName)