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[Launchpad Bug Tracker <1407893@xxxxxxxxxxxxxxxxxx>]

[Expired for OpenStack Compute (nova) because there has been no activity
for 60 days.]

** Changed in: nova
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1407893

Title:
  nova-network does not use interface for floating ip-SNAT-rule

Status in OpenStack Compute (Nova):
  Expired

Bug description:
  I created a pool of floating IPs with

  nova-manage floating create --ip_range=10.10.251.8/29  --pool testnetz
  --interface vlan251

  But nova-network does use the default public_interface when creating
  the SNAT-Rule:

  Chain nova-network-float-snat (1 references)
   pkts bytes target     prot opt in     out     source               destination
      0     0 SNAT       all  --  *      *       192.168.90.3         192.168.90.3         to:10.10.251.10
      2   168 SNAT       all  --  *      eth0  192.168.90.3         0.0.0.0/0            to:10.10.251.10

  instead of using the given one.

  Applying this patch
  -----------------------
  *** nova/network/floating_ips.py.orig        Tue Jan  6 10:06:19 2015
  --- nova/network/floating_ips.py     Tue Jan  6 10:06:43 2015
  ***************
  *** 90,96 ****
                        msg = _('Fixed ip %s not found') % floating_ip.fixed_ip_id
                        LOG.debug(msg)
                        continue
  !                 interface = CONF.public_interface or floating_ip.interface
                    try:
                        self.l3driver.add_floating_ip(floating_ip.address,
                                                      fixed_ip.address,
  --- 90,96 ----
                        msg = _('Fixed ip %s not found') % floating_ip.fixed_ip_id
                        LOG.debug(msg)
                        continue
  !                 interface = floating_ip.interface or CONF.public_interface
                    try:
                        self.l3driver.add_floating_ip(floating_ip.address,
                                                      fixed_ip.address,
  ***************
  *** 354,360 ****
        def _associate_floating_ip(self, context, floating_address, fixed_address,
                                   interface, instance_uuid):
            """Performs db and driver calls to associate floating ip & fixed ip."""
  !         interface = CONF.public_interface or interface
    
            @utils.synchronized(unicode(floating_address))
            def do_associate():
  --- 354,360 ----
        def _associate_floating_ip(self, context, floating_address, fixed_address,
                                   interface, instance_uuid):
            """Performs db and driver calls to associate floating ip & fixed ip."""
  !         interface = interface or CONF.public_interface
    
            @utils.synchronized(unicode(floating_address))
            def do_associate():
  ***************
  *** 602,608 ****
                floating_ip.host = dest
                floating_ip.save()
    
  !             interface = CONF.public_interface or floating_ip.interface
                fixed_ip = floating_ip.fixed_ip
                self.l3driver.add_floating_ip(floating_ip.address,
                                              fixed_ip.address,
  --- 602,608 ----
                floating_ip.host = dest
                floating_ip.save()
    
  !             interface = floating_ip.interface or CONF.public_interface
                fixed_ip = floating_ip.fixed_ip
                self.l3driver.add_floating_ip(floating_ip.address,
                                              fixed_ip.address,
  ------------

  changes this to the expectet behavior: Use default only if none is
  give on creation of the floating ip pool.

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