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
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