<div dir="ltr"><div>Hello Rodolfo,</div><div><br></div>With some hacks in the functions/lines below, I can perform tests with the neutron-ovn-metadata-agent IPv6-only.<br>[1] <a href="https://opendev.org/openstack/neutron/src/branch/master/neutron/agent/ovn/metadata/agent.py#L432">https://opendev.org/openstack/neutron/src/branch/master/neutron/agent/ovn/metadata/agent.py#L432</a><br>[2] <a href="https://opendev.org/openstack/neutron/src/branch/master/neutron/agent/ovn/metadata/driver.py#L59">https://opendev.org/openstack/neutron/src/branch/master/neutron/agent/ovn/metadata/driver.py#L59</a><br>[3] <a href="https://opendev.org/openstack/neutron/src/branch/master/neutron/agent/ovn/metadata/server.py#L101">https://opendev.org/openstack/neutron/src/branch/master/neutron/agent/ovn/metadata/server.py#L101</a><br>[4] <a href="https://opendev.org/openstack/neutron/src/branch/master/neutron/plugins/ml2/drivers/ovn/mech_driver/ovsdb/impl_idl_ovn.py#L922">https://opendev.org/openstack/neutron/src/branch/master/neutron/plugins/ml2/drivers/ovn/mech_driver/ovsdb/impl_idl_ovn.py#L922</a><br><br>However, I think the LLC address that the VM autoconfigures (needed by [3]), needs to be learned from the port_Binding table of the OVN southbound - or something to make this work on neutron-metadata side.<br><div><br></div><div>Regards,</div><div>Roberto</div><div><br></div><div><font size="1">ov 18 20:56:21 compute2 neutron-ovn-metadata-agent[206406]: 2022-11-18 20:56:21.575 206406 DEBUG eventlet.wsgi.server [-] (206406) accepted '' server /usr/local/lib/python3.10/dist-packages/eventlet/wsgi.py:1004<br>Nov 18 20:56:21 compute2 neutron-ovn-metadata-agent[206406]: 2022-11-18 20:56:21.576 206406 DEBUG neutron.agent.ovn.metadata.server [-] Request: GET / HTTP/1.0<br> Accept: */*<br> Connection: close<br> Content-Type: text/plain<br> Host: [fe80::a9fe:a9fe]<br> User-Agent: curl/7.68.0<br> X-Forwarded-For: fe80::f816:3eff:fe22:d958<br> X-Ovn-Network-Id: 2af7badf-1958-4fc8-b13a-b2e8379e6531 __call__ /usr/lib/python3/dist-packages/neutron/agent/ovn/metadata/server.py:84<br>Nov 18 20:56:21 compute2 neutron-ovn-metadata-agent[206406]: 2022-11-18 20:56:21.587 206406 DEBUG neutron.agent.ovn.metadata.server [-] <Response [200]> _proxy_request /usr/lib/python3/dist-packages/neutron/agent/ovn/metadata/server.py:164<br>Nov 18 20:56:21 compute2 haproxy[206448]: fe80::f816:3eff:fe22:d958:37348 [18/Nov/2022:20:56:21.574] listener listener/metadata 0/0/0/13/13 200 218 - - ---- 1/1/0/0/0 0/0 "GET / HTTP/1.1"<br>Nov 18 20:56:21 compute2 neutron-ovn-metadata-agent[206406]: 2022-11-18 20:56:21.588 206406 INFO eventlet.wsgi.server [-] fe80::f816:3eff:fe22:d958,<local> "GET / HTTP/1.1" status: 200 len: 234 time: 0.0112894<br></font><br></div><div><font size="1"><br></font></div><div><font size="1">root@ubuntu:~# curl [fe80::a9fe:a9fe%ens3]<br>1.0<br>2007-01-19<br>2007-03-01<br>2007-08-29<br>2007-10-10<br>2007-12-15<br>2008-02-01<br>2008-09-01<br>2009-04-04<br></font></div><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">Em sex., 18 de nov. de 2022 às 15:04, Roberto Bartzen Acosta <<a href="mailto:roberto.acosta@luizalabs.com">roberto.acosta@luizalabs.com</a>> escreveu:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Hi Rodolfo,<div><br></div><div>Thanks for the feedback, we know it's supported by default in neutron metadata agent.</div><div><br></div><div>My question came because I couldn't make it work with the neutron-ovn-metadata-agent. Checking some logs I believe that the problem is because the Port_Binding external_ids should have the "<span style="color:rgb(29,28,29);font-family:Monaco,Menlo,Consolas,"Courier New",monospace;font-size:12px;font-variant-ligatures:none;white-space:pre-wrap">neutron:cidrs" [1],but</span> this is empty.<br>[1] - <a href="https://opendev.org/openstack/neutron/src/branch/master/neutron/agent/ovn/metadata/agent.py#L432" target="_blank">https://opendev.org/openstack/neutron/src/branch/master/neutron/agent/ovn/metadata/agent.py#L432</a></div><div><br>I still don't know how to solve this (:<br><br>Regards,</div><div><br></div><div>neutron-ovn-metadata-agent logs: <br><font size="1">Nov 18 17:38:52 compute2 neutron-ovn-metadata-agent[188802]: 2022-11-18 17:38:52.996 188802 DEBUG ovsdbapp.backend.ovs_idl.event [-] Matched UPDATE: PortBindingChassisCreatedEvent(events=('update',), table='Port_Binding', conditions=None, old_conditions=None), priority=20 to row=Port_Binding(parent_port=[], chassis=[<ovs.db.idl.Row object at 0x7f4e958ba770>], mac=['fa:16:3e:e8:92:d8 2001:db9:1234::35e'], options={'mcast_flood_reports': 'true', 'requested-chassis': 'compute2'}, ha_chassis_group=[], type=, tag=[], requested_chassis=[<ovs.db.idl.Row object at 0x7f4e958ba770>], tunnel_key=3, up=[False], logical_port=2beb4efd-23c1-4bf6-b57d-6c97a0277124, gateway_chassis=[], external_ids={'neutron:cidrs': '2001:db9:1234::35e/64', 'neutron:device_id': 'cfbbc54a-1772-495b-8fe4-864c717e22b4', 'neutron:device_owner': 'compute:nova', 'neutron:network_name': 'neutron-2af7badf-1958-4fc8-b13a-b2e8379e6531', 'neutron:port_name': '', 'neutron:project_id': 'd11daecfe9d847ddb7d9ce2932c2fe26', 'neutron:revision_number': '2', 'neutron:security_group_ids': 'cf2e7d53-0db7-4873-82ab-cf67eceda937'}, encap=[], virtual_parent=[], nat_addresses=[], datapath=02e203c7-714a-417c-bc02-c2877ec758a7) old=Port_Binding(chassis=[]) matches /usr/lib/python3/dist-packages/ovsdbapp/backend/ovs_idl/event.py:43<br>Nov 18 17:38:52 compute2 neutron-ovn-metadata-agent[188802]: 2022-11-18 17:38:52.996 188802 INFO neutron.agent.ovn.metadata.agent [-] Port 2beb4efd-23c1-4bf6-b57d-6c97a0277124 in datapath 2af7badf-1958-4fc8-b13a-b2e8379e6531 bound to our chassis<br>Nov 18 17:38:52 compute2 neutron-ovn-metadata-agent[188802]: 2022-11-18 17:38:52.996 188802 DEBUG neutron.agent.ovn.metadata.agent [-] Provisioning metadata for network 2af7badf-1958-4fc8-b13a-b2e8379e6531 provision_datapath /usr/lib/python3/dist-packages/neutron/agent/ovn/metadata/agent.py:434<br>Nov 18 17:38:52 compute2 neutron-ovn-metadata-agent[188802]: 2022-11-18 17:38:52.997 188802 DEBUG neutron.agent.ovn.metadata.agent [-] There is no metadata port for network 2af7badf-1958-4fc8-b13a-b2e8379e6531 or it has no MAC or IP addresses configured, tearing the namespace down if needed provision_datapath /usr/lib/python3/dist-packages/neutron/agent/ovn/metadata/agent.py:442<br>Nov 18 17:38:52 compute2 neutron-ovn-metadata-agent[188802]: 2022-11-18 17:38:52.997 188812 DEBUG oslo.privsep.daemon [-] privsep: reply[c6aff129-2417-45c3-bee1-7b01ff6298f9]: (4, False) _call_back /usr/local/lib/python3.10/dist-packages/oslo_privsep/daemon.py:501</font><br><br><br><br><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">Em sex., 18 de nov. de 2022 às 12:25, Rodolfo Alonso Hernandez <<a href="mailto:ralonsoh@redhat.com" target="_blank">ralonsoh@redhat.com</a>> escreveu:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div>Hi Roberto:</div><div><br></div><div>The documentation you are referring to must be updated. The LP#1460177 RFE implemented this feature. Actually there is a test class that is testing this functionality in the CI [1][2].</div><div><br></div><div>Regards.<br></div><div><br></div><div>[1]<a href="https://review.opendev.org/c/openstack/neutron-tempest-plugin/+/750355/" target="_blank">https://review.opendev.org/c/openstack/neutron-tempest-plugin/+/750355/</a></div><div>[2]<a href="https://github.com/openstack/neutron-tempest-plugin/blob/f10618eac3a12d35a35044443b63d144b71e0c6b/neutron_tempest_plugin/scenario/test_metadata.py#L36-L44" target="_blank">https://github.com/openstack/neutron-tempest-plugin/blob/f10618eac3a12d35a35044443b63d144b71e0c6b/neutron_tempest_plugin/scenario/test_metadata.py#L36-L44</a></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Nov 18, 2022 at 2:45 PM Roberto Bartzen Acosta <<a href="mailto:roberto.acosta@luizalabs.com" target="_blank">roberto.acosta@luizalabs.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Hey folks,<br><div><br></div><div>Can you confirm if the metadata should work in an ipv6-only environment?<br><br>As I understand from this discussion on <a href="https://bugs.launchpad.net/neutron/+bug/1460177" target="_blank">LP:1460177</a> and the fork of the discussion in many opendev reviews <a href="https://review.opendev.org/c/openstack/neutron-specs/+/315604" target="_blank">#315604</a>, <a href="https://review.opendev.org/c/openstack/neutron-lib/+/738205" target="_blank">#738205</a> <a href="https://review.opendev.org/c/openstack/neutron/+/745705" target="_blank">#745705</a>, ..., it seems like it should work.<br></div><div><br></div><div>However, this comment in the openstack doc [1] has me questioning if it really works.<br></div><div><b style="font-size:x-small">"<span style="color:rgb(51,51,51);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Oxygen-Sans,Ubuntu,Cantarell,"Helvetica Neue",sans-serif">There are no provisions for an IPv6-based metadata service similar to what is provided for IPv4. In the case of dual-stacked guests though it is always possible to use the IPv4 metadata service instead. IPv6-only guests will have to use another method for metadata injection such as using a configuration drive, which is described in the Nova documentation on </span><a href="https://docs.openstack.org/nova/latest/user/config-drive.html" style="box-sizing:border-box;color:rgb(48,115,156);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Oxygen-Sans,Ubuntu,Cantarell,"Helvetica Neue",sans-serif" target="_blank">config-drive</a><span style="color:rgb(51,51,51);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Oxygen-Sans,Ubuntu,Cantarell,"Helvetica Neue",sans-serif">."</span></b><br></div><div><font size="1"><span style="color:rgb(51,51,51);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Oxygen-Sans,Ubuntu,Cantarell,"Helvetica Neue",sans-serif"><br></span></font></div><div>Is anyone using metadata in an ipv6-only Openstack setup?<font size="1"><span style="color:rgb(51,51,51);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Oxygen-Sans,Ubuntu,Cantarell,"Helvetica Neue",sans-serif"><br></span></font></div><div><br></div><div>Regards,<br></div><div>Roberto</div><div><div><br></div><div>[1] <a href="https://docs.openstack.org/neutron/latest/admin/config-ipv6.html#configuring-interfaces-of-the-guest" target="_blank">https://docs.openstack.org/neutron/latest/admin/config-ipv6.html#configuring-interfaces-of-the-guest</a><br></div><br></div><div><br></div><div><br></div></div>
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<div style="font-family:Arial,Helvetica,sans-serif;font-size:1.3em"><div style="color:rgb(97,97,97);font-family:"Open Sans";font-size:14px;line-height:21px;background-color:rgb(255,255,255)"><div style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;line-height:normal"><div style="font-family:Arial,Helvetica,sans-serif;font-size:1.3em"><div style="color:rgb(97,97,97);font-family:"Open Sans";font-size:14px;line-height:21px"><div style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;line-height:normal"><br></div></div></div><div style="font-family:Arial,Helvetica,sans-serif;font-size:1.3em"><i style="font-family:arial,sans-serif;font-size:x-small">‘Esta mensagem é direcionada apenas para os endereços constantes no cabeçalho inicial. Se você não está listado nos endereços constantes no cabeçalho, pedimos-lhe que desconsidere completamente o conteúdo dessa mensagem e cuja cópia, encaminhamento e/ou execução das ações citadas estão imediatamente anuladas e proibidas’.</i></div><div style="font-family:Arial,Helvetica,sans-serif;font-size:1.3em"><p style="font-family:arial,sans-serif;text-align:justify"><i><font size="1"> </font></i><i><font size="1">‘Apesar do Magazine Luiza tomar todas as precauções razoáveis para assegurar que nenhum vírus esteja presente nesse e-mail, a empresa não poderá aceitar a responsabilidade por quaisquer perdas ou danos causados por esse e-mail ou por seus anexos’.</font></i></p></div></div></div></div></blockquote></div>
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<div style="font-family:Arial,Helvetica,sans-serif;font-size:1.3em"><div style="color:rgb(97,97,97);font-family:'Open Sans';font-size:14px;line-height:21px;background-color:rgb(255,255,255)"><div style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8000001907349px;line-height:normal"><div style="font-family:Arial,Helvetica,sans-serif;font-size:1.3em"><div style="color:rgb(97,97,97);font-family:'Open Sans';font-size:14px;line-height:21px"><div style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8000001907349px;line-height:normal"><br></div></div></div><div style="font-family:Arial,Helvetica,sans-serif;font-size:1.3em"><i style="font-family:arial,sans-serif;font-size:x-small">‘Esta mensagem é direcionada apenas para os endereços constantes no cabeçalho inicial. Se você não está listado nos endereços constantes no cabeçalho, pedimos-lhe que desconsidere completamente o conteúdo dessa mensagem e cuja cópia, encaminhamento e/ou execução das ações citadas estão imediatamente anuladas e proibidas’.</i></div><div style="font-family:Arial,Helvetica,sans-serif;font-size:1.3em"><p style="font-family:arial,sans-serif;text-align:justify"><i><font size="1"> </font></i><i><font size="1">‘Apesar do Magazine Luiza tomar todas as precauções razoáveis para assegurar que nenhum vírus esteja presente nesse e-mail, a empresa não poderá aceitar a responsabilidade por quaisquer perdas ou danos causados por esse e-mail ou por seus anexos’.</font></i></p></div></div></div></div>