Open Stack

It looks like there may be a missing dependency. The floating IP
association needs to depend on the router interface that attaches the
router to the subnet where the floating IP maps to. You can't remove a
router interface to a subnet if there is a port on that subnet with a
floating IP associated to it because it would prevent the floating IP from
functioning.


On Wed, Aug 13, 2014 at 8:30 PM, McLellan, Steven <steve.mclellan at hp.com>
wrote:

>  Hello,
>
>
>
> We’re occasionally (as in occasionally repeatable but not consistent)
> seeing failures deleting stacks containing a neutron RouterInterface. I’m
> not sure if it’s a bug or the template is to blame. The error we get is:
>
>
>
> Conflict: Router interface for subnet <id> on router <id> cannot be
> deleted, as it is required by one or more floating IPs.
>
>
>
> The router id is provided to the heat template as an id; the subnet is a
> resource within the template.  An abridged example (minus server) is below
> (router interface towards the end). The logs (at INFO) for a SUCCESSFUL
> delete show the router interface being deleted first (straight after the
> server resource). I don’t have a lot of neutron expertise, but it seems
> like there’s an implicit dependency that’s not being expressed properly –
> or perhaps the template is flawed? The failure doesn’t happen all the time,
> which makes me wonder if there’s a race going on.
>
>
>
> Any ideas?
>
>
>
> Thanks,
>
> Steve
>
>
>
> 2014-08-14 02:55:50.374 INFO heat.engine.resource [-] deleting
> RouterInterface "router-interface"
> [685971ab-4c80-41a7-b64b-715a78b61267:subnet_id=4de89638-0e8b-4353-a847-0a3fceefe1f9]
> Stack "t1"
> [ba13d445-d43d-45c1-bc76-e2c5898ae5ad]
>
>
> 2014-08-14 02:55:50.491 INFO heat.engine.resource [-] deleting
> FloatingIPAssociation "floating-ip-assoc"
> [92f10394-b524-4f8b-9383-e1f111d70d68:23540c60-9b05-47ad-b93b-b3b24f86ab37]
> Stack "t1" [ba13d445-d43d-45c1-bc76-e2c5898ae5ad]
>
> 2014-08-14 02:55:51.124 INFO heat.engine.resource [-] deleting Port
> "port-on-subnet" [23540c60-9b05-47ad-b93b-b3b24f86ab37] Stack "t1"
> [ba13d445-d43d-45c1-bc76-e2c5898ae5ad]
>
>
> 2014-08-14 02:55:51.163 INFO heat.engine.resource [-] deleting FloatingIP
> "floating-ip" [92f10394-b524-4f8b-9383-e1f111d70d68] Stack "t1"
> [ba13d445-d43d-45c1-bc76-e2c5898ae5ad]
>
>
> 2014-08-14 02:55:52.278 INFO heat.engine.resource [-] deleting Subnet
> "subnet" [4de89638-0e8b-4353-a847-0a3fceefe1f9] Stack "t1"
> [ba13d445-d43d-45c1-bc76-e2c5898ae5ad]
>
>
> 2014-08-14 02:55:52.428 INFO heat.engine.resource [-] deleting
> SecurityGroup "secgroup" [e7ec7fbb-6134-41dc-a98e-c0d4104b270f] Stack "t1"
> [ba13d445-d43d-45c1-bc76-e2c5898ae5ad]
>
>
>
>
>
>   floating-ip:
>
>     properties: {floating_network_id: a60900f8-bdc9-40ef-b0ab-a41d20e0c660}
>
>     type: OS::Neutron::FloatingIP
>
>   floating-ip-assoc:
>
>     properties:
>
>       floatingip_id: {get_resource: floating-ip}
>
>       port_id: {get_resource: port-on-subnet}
>
>     type: OS::Neutron::FloatingIPAssociation
>
>   port-on-subnet:
>
>     properties:
>
>       fixed_ips:
>
>       - subnet_id: {get_resource: subnet}
>
>       network_id: {get_resource: net}
>
>       security_groups:
>
>       - default
>
>     type: OS::Neutron::Port
>
>   net:
>
>     properties: {name: mynet}
>
>     type: OS::Neutron::Net
>
>   router-interface:
>
>     properties:
>
>       router_id: 108eea7b-b846-40df-9f0d-c53c926b7608
>
>       subnet_id: {get_resource: subnet}
>
>     type: OS::Neutron::RouterInterface
>
>   subnet:
>
>     properties:
>
>       cidr: 10.0.29.0/24
>
>       dns_nameservers: [8.8.8.8]
>
>       ip_version: 4
>
>       network_id: {get_resource: net}
>
>     type: OS::Neutron::Subnet
>
> _______________________________________________
> OpenStack-dev mailing list
> OpenStack-dev at lists.openstack.org
> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
>
>


-- 
Kevin Benton
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20140813/695f0545/attachment.html>