[jira] [Commented] (CLOUDSTACK-9500) VR configuration not clean properly after Public IP release

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CLOUDSTACK-9500?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15624715#comment-15624715 ] 

ASF GitHub Bot commented on CLOUDSTACK-9500:
--------------------------------------------

Github user ustcweizhou commented on the issue:

    https://github.com/apache/cloudstack/pull/1706
  
    this is our change for similar issue
    ```
    diff --git a/systemvm/patches/debian/config/opt/cloud/bin/cs/CsAddress.py b/systemvm/patches/debian/config/opt/cloud/bin/cs/CsAddress.py
    index 9f9513d..fc2b639 100755
    --- a/systemvm/patches/debian/config/opt/cloud/bin/cs/CsAddress.py
    +++ b/systemvm/patches/debian/config/opt/cloud/bin/cs/CsAddress.py
    @@ -118,6 +118,16 @@ class CsAddress(CsDataBag):
                         if CsDevice(dev, self.config).waitfordevice():
                             ip.configure(address)
    
    +    def delete(self, addr):
    +        for dev in self.dbag:
    +            if dev == "id":
    +                continue
    +            for address in self.dbag[dev]:
    +                if address['public_ip'] == addr:
    +                    self.dbag[dev].remove(address)
    +                    self.save()
    +                    break
    +
    
     class CsInterface:
    
    @@ -537,6 +547,8 @@ class CsIP:
                     route.copy_routes_from_main(devs, [self.dev])
    
             elif method == "delete":
    +            logging.info("delete %s from /etc/cloudstack/ips.json" % self.address['public_ip'])
    +            self.config.address().delete(self.address['public_ip'])
                 logging.warn("delete route not implemented")
    
             self.fw_router()
    ```


> VR configuration not clean properly after Public IP release
> -----------------------------------------------------------
>
>                 Key: CLOUDSTACK-9500
>                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-9500
>             Project: CloudStack
>          Issue Type: Bug
>      Security Level: Public(Anyone can view this level - this is the default.) 
>          Components: Virtual Router
>    Affects Versions: 4.7.0, 4.9.0
>            Reporter: Pierre-Luc Dion
>
> On a VPC, releasing a public IP that had Port Forwarding does not remove configuration of the public IP on the VR configs ({{/etc/cloudstack/forwardingrules.json}}, {{/etc/cloudstack/ips.json}})
> So, when this IP is reassign to another VPC, it cause arp table issues on switches, because 2 MAC try to own this IP from 2 different VRs. the IP on the old VR is not pignable but the switches arp table get updated every time the previous VR have configuration changes.



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