Thanks Kevin. Steve Baker pointed me at https://bugs.launchpad.net/heat/+bug/1299259 which looks related.
The only related field I see around floating ips is ‘router_id’ on FloatingIP, but it feels like that wouldn’t correct any dependencies on the RouterInterface. I understand the error I’m getting, but I’m not sure if I’m doing something wrong or if it’s a bug. From: Kevin Benton [mailto:[email protected]] Sent: Wednesday, August 13, 2014 10:44 PM To: OpenStack Development Mailing List (not for usage questions) Subject: Re: [openstack-dev] [Heat] Occasional stack-delete failure with RouterInterface 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 <[email protected]<mailto:[email protected]>> 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<http://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 [email protected]<mailto:[email protected]> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev -- Kevin Benton
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