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From "Vincent Bernat (JIRA)" <>
Subject [jira] [Created] (CLOUDSTACK-7193) Rebooting a VM doesn't update iptables rules
Date Mon, 28 Jul 2014 15:53:39 GMT
Vincent Bernat created CLOUDSTACK-7193:

             Summary: Rebooting a VM doesn't update iptables rules
                 Key: CLOUDSTACK-7193
             Project: CloudStack
          Issue Type: Bug
      Security Level: Public (Anyone can view this level - this is the default.)
          Components: KVM
    Affects Versions: 4.3.0
         Environment: Ubuntu Lucid 12.04 and more recent
            Reporter: Vincent Bernat


Rebooting a VM doesn't update the iptables rules despite the change on the interface name.
To reproduce:

 1. Starts two VM
 2. Stop the first one.
 3. Reboot the second one. It will use the vnet device of the first one.
 4. Checks that the iptables rules for the second one are still referencing the old interface.

The defect seems to be in The periodic "get_rule_logs_for_vm" which also
handles rebooted VM fails because of the following traceback:

2014-07-28 15:15:19,035 - 'int' object has no attribute 'isdigit'
Traceback (most recent call last):
  File "/usr/share/cloudstack-common/scripts/vm/network/", line 705, in get_rule_logs_for_vms
  File "/usr/share/cloudstack-common/scripts/vm/network/", line 637, in network_rules_for_rebooted_vm
    [curr_domid, old_domid] = check_domid_changed(vm_name)
  File "/usr/share/cloudstack-common/scripts/vm/network/", line 619, in check_domid_changed
    if (curr_domid is None) or (not curr_domid.isdigit()):
AttributeError: 'int' object has no attribute 'isdigit'

This exception is catched by some try...except.

On Ubuntu Lucid 12.04, a domain ID is an integer. This is with libvirt 0.9.8. I also checked
that this is still the case with libvirt 1.2.4.

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