mirror of https://github.com/apache/cloudstack.git
64 lines
2.5 KiB
Python
64 lines
2.5 KiB
Python
#!/usr/bin/python3
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# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations
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# under the License.
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from cloudutils.networkConfig import networkConfig
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from cloudutils.utilities import bash
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import logging
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import re
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def isOldStyleBridge(brName):
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if brName.find("cloudVirBr") == 0:
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return True
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else:
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return False
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def upgradeBridgeName(brName, enslavedDev):
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print("upgrade bridge: %s, %s"%(brName, enslavedDev))
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vlanId = brName.replace("cloudVirBr", "")
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print("find vlan Id: %s"%vlanId)
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phyDev = enslavedDev.split(".")[0]
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print("find physical device %s"%phyDev)
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newBrName = "br" + phyDev + "-" + vlanId
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print("new bridge name %s"%newBrName)
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bash("ip link set %s down"%brName)
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bash("ip link set %s name %s"%(brName, newBrName))
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bash("ip link set %s up" %newBrName)
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cmd = "iptables-save | grep FORWARD | grep -w " + brName
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rules = bash(cmd).stdout.split('\n')
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rules.pop()
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for rule in rules:
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try:
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delrule = re.sub("-A", "-D", rule)
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newrule = re.sub(" " + brName + " ", " " + newBrName + " ", rule)
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bash("iptables " + delrule)
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bash("iptables " + newrule)
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except:
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logging.exception("Ignoring failure to update rules for rule " + rule + " on bridge " + brName)
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if __name__ == '__main__':
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netlib = networkConfig()
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bridges = netlib.listNetworks()
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bridges = list(filter(isOldStyleBridge, bridges))
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for br in bridges:
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enslavedDev = netlib.getEnslavedDev(br, 1)
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if enslavedDev is not None:
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upgradeBridgeName(br, enslavedDev)
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bridges = netlib.listNetworks()
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bridges = list(filter(isOldStyleBridge, bridges))
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if len(bridges) > 0:
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print("Warning: upgrade is not finished, still some bridges have the old style name:" + str(bridges))
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else:
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print("Upgrade succeed")
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