Public bug reported: When resizing cross-cell we found that the metadata key keys is missing after a resize. For VMs that are rebuilt after a cross cell resize, cloud-init might not be able to find the SSH key in the metadata anymore and don't install the key.
Steps to reproduce ================== 1. Create VM with keypair openstack server create --flavor flavor_src_cell --image "RHEL9 - x86_64" --key-name mysshkey test-vm 2. Resize/Migrate the VM to a different cell openstack server resize --flavor flavor_dst_cell test-vm openstack server resize confirm test-vm 3. (optional) Rebuild the VM => loose access openstack server rebuild test-vm Expected result =============== SSH key still being present in the metadata Actual result ============= The keypair is no longer in the metadata/instance_extra. You can verify after during step 2 before confirming the resize: select keypairs from src_cell.instance_extra where instance_uuid = "..."; nova-KeypairList-json select keypairs from dst_cell.instance_extra where instance_uuid = "..."; NULL In the first query the src_cell still has the keypair in the DB, while the dst_cell does not have the value. Note the other fields seem to be properly filled in instance_extra, only keypairs will be NULL. Corresponding endpoint that looses the keys: curl -q 169.254.169.254/openstack/latest/meta_data.json | jq .keys Meanwhile the key-name and pub-key are still in instances table, so the metadata endpoint will continue to work: curl http://169.254.169.254/latest/meta-data/public-keys/0/openssh-key However cloud-init does not install this key in the ssh step. Environment =========== 1. Exact version of OpenStack you are running. See the following Yoga: 25.1.1 2. Which hypervisor did you use? Libvirt+KVM 3. Which networking type did you use? Neutron + LinuxBridge/OVN ** Affects: nova Importance: Undecided Status: New -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to OpenStack Compute (nova). https://bugs.launchpad.net/bugs/2108974 Title: Keypairs lost during cross-cell resize in instance_extra Status in OpenStack Compute (nova): New Bug description: When resizing cross-cell we found that the metadata key keys is missing after a resize. For VMs that are rebuilt after a cross cell resize, cloud-init might not be able to find the SSH key in the metadata anymore and don't install the key. Steps to reproduce ================== 1. Create VM with keypair openstack server create --flavor flavor_src_cell --image "RHEL9 - x86_64" --key-name mysshkey test-vm 2. Resize/Migrate the VM to a different cell openstack server resize --flavor flavor_dst_cell test-vm openstack server resize confirm test-vm 3. (optional) Rebuild the VM => loose access openstack server rebuild test-vm Expected result =============== SSH key still being present in the metadata Actual result ============= The keypair is no longer in the metadata/instance_extra. You can verify after during step 2 before confirming the resize: select keypairs from src_cell.instance_extra where instance_uuid = "..."; nova-KeypairList-json select keypairs from dst_cell.instance_extra where instance_uuid = "..."; NULL In the first query the src_cell still has the keypair in the DB, while the dst_cell does not have the value. Note the other fields seem to be properly filled in instance_extra, only keypairs will be NULL. Corresponding endpoint that looses the keys: curl -q 169.254.169.254/openstack/latest/meta_data.json | jq .keys Meanwhile the key-name and pub-key are still in instances table, so the metadata endpoint will continue to work: curl http://169.254.169.254/latest/meta-data/public-keys/0/openssh-key However cloud-init does not install this key in the ssh step. Environment =========== 1. Exact version of OpenStack you are running. See the following Yoga: 25.1.1 2. Which hypervisor did you use? Libvirt+KVM 3. Which networking type did you use? Neutron + LinuxBridge/OVN To manage notifications about this bug go to: https://bugs.launchpad.net/nova/+bug/2108974/+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
