<div dir="ltr">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. </div>
<div class="gmail_extra"><br><br><div class="gmail_quote">On Wed, Aug 13, 2014 at 8:30 PM, McLellan, Steven <span dir="ltr"><<a href="mailto:steve.mclellan@hp.com" target="_blank">steve.mclellan@hp.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div lang="EN-US" link="#0563C1" vlink="#954F72">
<div>
<p class="MsoNormal">Hello,<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">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:<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal" style="text-indent:.5in"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black;background:white">Conflict: Router interface for subnet <id> on router <id> cannot be deleted, as it is required by one or more floating
IPs.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black;background:white"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black;background:white">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.
<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black;background:white"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black;background:white">Any ideas?<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black;background:white"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black;background:white">Thanks,<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black;background:white">Steve<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black;background:white"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black;background:white">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]
<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black;background:white">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]<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black;background:white">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]
<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black;background:white">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]
<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black;background:white">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]
<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black;background:white">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]
<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black;background:white"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black;background:white"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black;background:white"> floating-ip:<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black;background:white"> properties: {floating_network_id: a60900f8-bdc9-40ef-b0ab-a41d20e0c660}<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black;background:white"> type: OS::Neutron::FloatingIP<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black;background:white"> floating-ip-assoc:<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black;background:white"> properties:<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black;background:white"> floatingip_id: {get_resource: floating-ip}<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black;background:white"> port_id: {get_resource: port-on-subnet}<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black;background:white"> type: OS::Neutron::FloatingIPAssociation<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black;background:white"> port-on-subnet:<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black;background:white"> properties:<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black;background:white"> fixed_ips:<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black;background:white"> - subnet_id: {get_resource: subnet}<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black;background:white"> network_id: {get_resource: net}<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black;background:white"> security_groups:<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black;background:white"> - default<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black;background:white"> type: OS::Neutron::Port<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black;background:white"> net:<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black;background:white"> properties: {name: mynet}<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black;background:white"> type: OS::Neutron::Net<u></u><u></u></span></p>
<p class="MsoNormal"> router-interface:<u></u><u></u></p>
<p class="MsoNormal"> properties:<u></u><u></u></p>
<p class="MsoNormal"> router_id: 108eea7b-b846-40df-9f0d-c53c926b7608<u></u><u></u></p>
<p class="MsoNormal"> subnet_id: {get_resource: subnet}<u></u><u></u></p>
<p class="MsoNormal"> type: OS::Neutron::RouterInterface<u></u><u></u></p>
<p class="MsoNormal"> subnet:<u></u><u></u></p>
<p class="MsoNormal"> properties:<u></u><u></u></p>
<p class="MsoNormal"> cidr: <a href="http://10.0.29.0/24" target="_blank">10.0.29.0/24</a><u></u><u></u></p>
<p class="MsoNormal"> dns_nameservers: [8.8.8.8]<u></u><u></u></p>
<p class="MsoNormal"> ip_version: 4<u></u><u></u></p>
<p class="MsoNormal"> network_id: {get_resource: net}<u></u><u></u></p>
<p class="MsoNormal"> type: OS::Neutron::Subnet<u></u><u></u></p>
</div>
</div>
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br><div>Kevin Benton</div>
</div>