diff options
| -rw-r--r-- | nova/virt/libvirt/firewall.py | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/nova/virt/libvirt/firewall.py b/nova/virt/libvirt/firewall.py index 3323b8f1d..5b712cf42 100644 --- a/nova/virt/libvirt/firewall.py +++ b/nova/virt/libvirt/firewall.py @@ -29,11 +29,7 @@ LOG = logging.getLogger(__name__) CONF = cfg.CONF CONF.import_opt('use_ipv6', 'nova.netconf') -try: - import libvirt -except ImportError: - LOG.warn(_("Libvirt module could not be loaded. NWFilterFirewall will " - "not work correctly.")) +libvirt = None class NWFilterFirewall(base_firewall.FirewallDriver): @@ -47,6 +43,13 @@ class NWFilterFirewall(base_firewall.FirewallDriver): def __init__(self, virtapi, get_connection, **kwargs): super(NWFilterFirewall, self).__init__(virtapi) + global libvirt + if libvirt is None: + try: + libvirt = __import__('libvirt') + except ImportError: + LOG.warn(_("Libvirt module could not be loaded. " + "NWFilterFirewall will not work correctly.")) self._libvirt_get_connection = get_connection self.static_filters_configured = False self.handle_security_groups = False |