Hello Maor: This is the goal of the "dns_domain_port" extension. From [1]: """ * The name given to the instance by the user, my_vm, is sanitized by the Compute service and becomes my-vm as the port’s dns_name.
* The port’s dns_assignment attribute shows that its FQDN is my- vm.example.org. in the Networking service internal DNS, which is the result of concatenating the port’s dns_name with the value configured in the dns_domain parameter in neutron.conf, as explained previously. * The dns_assignment attribute also shows that the port’s hostname in the Networking service internal DNS is my-vm. * Instead of having the Compute service create the port for the instance, the user might have created it and assigned a value to its dns_name attribute. In this case, the value assigned to the dns_name attribute must be equal to the value that Compute service will assign to the instance’s hostname, in this example my-vm. Otherwise, the instance boot will fail. """ Thus the behaviour you are describing is correct. Regards. [1]https://docs.openstack.org/neutron/latest/admin/config-dns-int.html ** Changed in: neutron Status: New => 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/1952249 Title: [OVN] Created VM name overrides predefined port dns-name Status in neutron: Invalid Bug description: Hi, I think I've encountered a bug in internal DNS feature. Generic Description: ==================== Hostname of port created with '--dns-name' option is being overridden by the name of the created server (VM) which uses predefined port. * This is the default behavior and I haven't seen any options to change that in server creation phase. * It seems to be acknowledged at the last bullets in internal DNS doc [1], but IMO it does not make sense to be that way, since it makes this option useless or it is not the intended behavior, and is a bug. Maybe I'm missing some point there. [1] https://docs.openstack.org/neutron/latest/admin/config-dns- int.html Setup: ====== - Openstack 16.2. - OVN. - Deployed with TripleO (Director). - 3 controllers, 2 computes. - Host images RHEL 8.4, guest images RHEL 8.4/cirrOS 0.3.4, all x86_64. Steps to reproduce: =================== 1) Creating resources: network, subnet, etc. 2) Creating a port with '--dns-name' option: openstack port create ... --dns-name test-hostname-1234 dns_port \ -c dns_name -c dns_assignment -c id 3) Creating a VM using the same predefined port with hostname (outputs changed hostname): openstack server create ... --nic port-id=${port_id} vm1 \ -c OS-EXT-SRV-ATTR:hostname 4) Check the predefined port with changed hostname details openstack port show dns_port \ -c dns_name -c dns_assignment -c id Result: ======= The VM/port predefined hostname from the port creation phase is replaced with the VM given name in VM creation phase. To manage notifications about this bug go to: https://bugs.launchpad.net/neutron/+bug/1952249/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : [email protected] Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp
