Bug 737014

Found this to be the case when attempting to add a floating ip to a Fedora jeos image, the error returned:

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2012-06-12 12:42:26 ERROR nova.rpc.amqp [req-621680cb-6ed6-4f7b-96ac-986b3b305faa 69ac541e44d143309b1135d5fac3c033 3438608ade1a4bd0809e16ba8ed5ba44] Returning exception Interface eth0 not found. to caller
2012-06-12 12:42:26 ERROR nova.rpc.amqp [req-621680cb-6ed6-4f7b-96ac-986b3b305faa 69ac541e44d143309b1135d5fac3c033 3438608ade1a4bd0809e16ba8ed5ba44] ['Traceback (most recent call last):\n', '  File "/usr/lib/python2.7/site-packages/nova/rpc/amqp.py", line 253, in _process_data\n    rval = node_func(context=ctxt, **node_args)\n', '  File "/usr/lib/python2.7/site-packages/nova/network/manager.py", line 257, in wrapped\n    return func(self, context, *args, **kwargs)\n', '  File "/usr/lib/python2.7/site-packages/nova/network/manager.py", line 469, in associate_floating_ip\n    fixed_address, interface)\n', '  File "/usr/lib/python2.7/site-packages/nova/network/manager.py", line 497, in _associate_floating_ip\n    raise exception.NoFloatingIpInterface(interface=interface)\n', 'NoFloatingIpInterface: Interface eth0 not found.\n']
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With this being the case, if the public_interface is changed in the nova.conf, wouldn't this remove the ability to spin both rhel 5/6 and fedora images?

Also note, whilst the cli succeeds the dashboard returns a http 500 error.

Ignore my comment on running rhel 5/6 and Fedora, was working on the assumption the error was related to the interface missing on the guest, where as this is the interface on the host, in which case if mixing hosts, in theory the configuration of nova.conf on each host should be sufficent.

However an interface can be specified against a floating ip (in essex at least), as such this could lead to issues when mixing network node host os; such if this is the case in a deploy would be worth noting that all network nodes should therfor use a common public interface naming convention where possible; or seperate pools maintained for this purpose?

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