5.3. 在计算服务上执行快速升级

流程

1. 等待 Compute 服务数据平面服务版本为所有单元更新：

   $ for CELL in $(echo $RENAMED_CELLS); do
   > oc exec openstack-$CELL-galera-0 -c galera -- mysql -rs -uroot -p"${PODIFIED_DB_ROOT_PASSWORD[$CELL]}" \
   >   -e "select a.version from nova_${CELL}.services a join nova_${CELL}.services b where a.version!=b.version and a.binary='nova-compute' and a.deleted=0;"
   > done

   注意

   更新完成后，查询会返回空结果。对于虚拟机工作负载，预计不会停机。

   查看 data plane 上的 nova Compute 代理日志中的任何错误，以及 control plane 上的 nova-conductor 日志记录。

2. 对 OpenStackControlPlane CR 进行补丁，以删除 Compute control plane 服务中的前向升级临时解决方案：

   $ rm -f celltemplates
   $ for CELL in $(echo $RENAMED_CELLS); do
   $ cat >> celltemplates << EOF
           ${CELL}:
             metadataServiceTemplate:
               customServiceConfig: |
                 [workarounds]
                 disable_compute_service_check_for_ffu=false
             conductorServiceTemplate:
               customServiceConfig: |
                 [workarounds]
                 disable_compute_service_check_for_ffu=false
   EOF
   done
   
   $ cat > oscp-patch.yaml << EOF
   spec:
     nova:
       template:
         apiServiceTemplate:
           customServiceConfig: |
             [workarounds]
             disable_compute_service_check_for_ffu=false
         metadataServiceTemplate:
           customServiceConfig: |
             [workarounds]
             disable_compute_service_check_for_ffu=false
         schedulerServiceTemplate:
           customServiceConfig: |
             [workarounds]
             disable_compute_service_check_for_ffu=false
         cellTemplates:
           cell0:
             conductorServiceTemplate:
               customServiceConfig: |
                 [workarounds]
                 disable_compute_service_check_for_ffu=false
   EOF
   $ cat celltemplates >> oscp-patch.yaml

   • 如果您使用 Compute 服务与裸机置备服务(ironic)，请在 Compute 服务 CR 补丁的 cell<X&gt; 部分中追加以下 novaComputeTemplates ：

             cell<X>:
               novaComputeTemplates:
                 <hostname>: 

     1

     
                   customServiceConfig: |
                     [DEFAULT]
                     host = <hostname>
                     [workarounds]
                     disable_compute_service_check_for_ffu=true
                   computeDriver: ironic.IronicDriver
             ...

     1

     将 < hostname> 替换为在 cell<X> 源云中运行 ironic Compute 驱动程序的节点主机名。

3. 应用补丁文件：

   $ oc patch openstackcontrolplane openstack --type=merge --patch-file=oscp-patch.yaml

4. 等待 Compute control plane 服务 CR 就绪：

   $ oc wait --for condition=Ready --timeout=300s Nova/nova

5. 从 Compute data plane 服务中删除预先转发的升级临时解决方案：

   $ oc patch cm nova-cells-global-config --type=json -p='[{"op": "replace", "path": "/data/99-nova-compute-cells-workarounds.conf", "value": "[workarounds]\n"}]'
   $ for CELL in $(echo $RENAMED_CELLS); do
   $ oc get Openstackdataplanenodeset openstack-${CELL} || continue
   $ oc apply -f - <<EOF
   ---
   apiVersion: dataplane.openstack.org/v1beta1
   kind: OpenStackDataPlaneDeployment
   metadata:
     name: openstack-nova-compute-ffu-$CELL
   spec:
     nodeSets:
       - openstack-${CELL}
     servicesOverride:
       - nova-${CELL}
   backoffLimit: 3
   EOF
   done

6. 等待 Compute data plane 服务准备所有单元：

   $ oc wait --for condition=Ready openstackdataplanedeployments --all --timeout=5m

7. 运行 Compute 数据库在线迁移来完成升级：

   $ oc exec -it nova-cell0-conductor-0 -- nova-manage db online_data_migrations
   $ for CELL in $(echo $RENAMED_CELLS); do
   $ oc exec -it nova-${CELL}-conductor-0 -- nova-manage db online_data_migrations
   done

8. 在单元格中发现 Compute 主机：

   $ oc rsh nova-cell0-conductor-0 nova-manage cell_v2 discover_hosts --verbose

9. 验证现有测试虚拟机实例是否正在运行：

   ${BASH_ALIASES[openstack]} server --os-compute-api-version 2.48 show --diagnostics test 2>&1 || echo FAIL

10. 验证 Compute 服务是否可以停止现有的测试虚拟机实例：

    ${BASH_ALIASES[openstack]} server list -c Name -c Status -f value | grep -qF "test ACTIVE" && ${BASH_ALIASES[openstack]} server stop test || echo PASS
    ${BASH_ALIASES[openstack]} server list -c Name -c Status -f value | grep -qF "test SHUTOFF" || echo FAIL
    ${BASH_ALIASES[openstack]} server --os-compute-api-version 2.48 show --diagnostics test 2>&1 || echo PASS

11. 验证 Compute 服务是否可以启动现有的测试虚拟机实例：

    ${BASH_ALIASES[openstack]} server list -c Name -c Status -f value | grep -qF "test SHUTOFF" && ${BASH_ALIASES[openstack]} server start test || echo PASS
    ${BASH_ALIASES[openstack]} server list -c Name -c Status -f value | grep -qF "test ACTIVE" && \
      ${BASH_ALIASES[openstack]} server --os-compute-api-version 2.48 show --diagnostics test --fit-width -f json | jq -r '.state' | grep running || echo FAIL