Hello Max: If any of the subnets of a network have DHCP capabilities, the metadata port of this network namespace will have no IP assigned (exactly the OVN metadata code you are pointing [1]). That means we can't provide the metadata via the metadata IP. You need to use a config-drive in this case [2].
Regards. [1]https://github.com/openstack/neutron/blob/09207ba731bfc859c2f6d175588a8bfe09be01db/neutron/agent/ovn/metadata/agent.py#L431-L437 [2]https://docs.openstack.org/nova/latest/admin/config-drive.html ** Changed in: neutron Status: Confirmed => Invalid -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net/bugs/1976366 Title: OVN: Metadata is not provisioned for a network with DHCP turned off Status in neutron: Invalid Bug description: Can be related to #1918914 Openstack version: Ussuri I have a very simple deployment with a single flat provider network (not sure it matters) with a subnet with DHCP turned off (instances are created only with this network). In this case neutron-ovn-metadata-agent does not provision metadata service for this network: --- root@eq-os1:~# ovn-sbctl find Port_Binding type=localport _uuid : b6329cbe-e80f-48a3-921d-e1031afd85d8 chassis : [] datapath : 097732e0-85d1-4744-a9c6-bafa0d861700 encap : [] external_ids : {"neutron:cidrs"="", "neutron:device_id"=ovnmeta-81954d74-51e6-4598-b6b6-3da3832f20df, "neutron:device_owner"="network:dhcp", "neutron:network_name"=neutron-81954d74-51e6-4598-b6b6-3da3832f20df, "neutron:port_name"="", "neutron:project_id"=f11221fbfbb844209cd49c7ca3a12a00, "neutron:revision_number"="1", "neutron:security_group_ids"=""} gateway_chassis : [] ha_chassis_group : [] logical_port : "a557f47a-dae7-4150-96c2-71abbf48b84b" mac : ["fa:16:3e:06:ed:9b"] nat_addresses : [] options : {requested-chassis=""} parent_port : [] tag : [] tunnel_key : 2 type : localport virtual_parent : [] root@eq-os1:~# --- The reason is that external_ids:neutron:cidrs is empty so provision_datapath() ignores this network in this case: --- neutron/agent/ovn/metadata/agent.py --- # If there's no metadata port or it doesn't have a MAC or IP # addresses, then tear the namespace down if needed. This might happen # when there are no subnets yet created so metadata port doesn't have # an IP address. if not (port and port.mac and port.external_ids.get(ovn_const.OVN_CIDRS_EXT_ID_KEY, None)): LOG.debug("There is no metadata port for network %s or it has no " "MAC or IP addresses configured, tearing the namespace " "down if needed", net_name) self.teardown_datapath(datapath, net_name) return --- When DHCP is enabled neutron:cidrs gets not empty and metadata is properly provisioned. To manage notifications about this bug go to: https://bugs.launchpad.net/neutron/+bug/1976366/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : yahoo-eng-team@lists.launchpad.net Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp
