OpenStack 删除一个计算节点

思路
增加计算节点大概需要 4 个事情：

加入 package 源 OpenStack packages for Ubuntu
安装时间同步服务 chrony Other nodes reference the controller node for clock synchronization
安装 nova 计算服务 Install and configure a compute node for Ubuntu
安装 Networking service 网络服务 Install and configure compute node
删除（下线）一个计算节点的话，只需要删除 nova 计算服务 和 Networking service 网络服务

操作步骤
删除 nova service
root@controller:/home/dhbm# nova service-list

+--------------------------------------+----------------+------------+----------+---------+-------+----------------------------+-----------------+-------------+
| Id | Binary | Host | Zone | Status | State | Updated_at | Disabled Reason | Forced down |
+--------------------------------------+----------------+------------+----------+---------+-------+----------------------------+-----------------+-------------+
| 8108a83f-39a4-41cb-bf66-d13d36acff1b | nova-scheduler | controller | internal | enabled | up | 2022-11-21T06:14:46.000000 | - | False |
| 77aa7e35-b7df-41f8-a5af-657100b07ea6 | nova-conductor | controller | internal | enabled | up | 2022-11-21T06:14:46.000000 | - | False |
| 5385e0fd-f5f6-4045-ab31-1a057f7324aa | nova-compute | controller | nova | enabled | up | 2022-11-21T06:14:55.000000 | - | False |
| 5cb981b3-96b5-42f0-b978-3ed6eb51c586 | nova-conductor | compute1 | internal | enabled | down | - | - | False |
| 835a0ee6-b218-4c98-96f1-966d36e1e70a | nova-scheduler | compute1 | internal | enabled | down | - | - | False |
| 0eb6f0a6-42b6-4210-a858-34accd88cb20 | nova-compute | compute1 | nova | enabled | down | 2022-11-21T02:07:01.000000 | - | False |
+--------------------------------------+----------------+------------+----------+---------+-------+----------------------------+-----------------+-------------+

删除其中 compute1 相关的 service ID

root@controller:/home/dhbm# nova service-delete 5cb981b3-96b5-42f0-b978-3ed6eb51c586

root@controller:/home/dhbm# nova service-delete 835a0ee6-b218-4c98-96f1-966d36e1e70a

root@controller:/home/dhbm# nova service-delete 0eb6f0a6-42b6-4210-a858-34accd88cb20

最终结果
root@controller:/home/dhbm# openstack compute service list --service nova-compute

+----+--------------+------------+------+---------+-------+----------------------------+
| ID | Binary | Host | Zone | Status | State | Updated At |
+----+--------------+------------+------+---------+-------+----------------------------+
| 5 | nova-compute | controller | nova | enabled | up | 2022-11-21T06:18:25.000000 |
+----+--------------+------------+------+---------+-------+----------------------------+

删除 network agent

root@controller:/home/dhbm# openstack network agent list

+--------------------------------------+--------------------+------------+-------------------+-------+-------+---------------------------+
| ID | Agent Type | Host | Availability Zone | Alive | State | Binary |
+--------------------------------------+--------------------+------------+-------------------+-------+-------+---------------------------+
| 326c6f4c-370a-4f06-abfb-6e7fa1bc6c67 | Linux bridge agent | controller | None | 🙂 | UP | neutron-linuxbridge-agent |
| 4b594d85-cc54-45b1-8264-2c692827d7ca | Linux bridge agent | compute1 | None | XXX | UP | neutron-linuxbridge-agent |
| 633c6363-6a63-4ac9-a589-41d28a1508ae | Metadata agent | controller | None | 🙂 | UP | neutron-metadata-agent |
| 9a8ead8b-2173-44f2-a102-8c1d4b4098da | L3 agent | controller | nova | 🙂 | UP | neutron-l3-agent |
| fce10fb1-f9a7-4f5e-862b-51955d52b149 | DHCP agent | controller | nova | 🙂 | UP | neutron-dhcp-agent |
+--------------------------------------+--------------------+------------+-------------------+-------+-------+---------------------------+

删除 compute1 对应的 ID
root@controller:/home/dhbm# openstack network agent delete 4b594d85-cc54-45b1-8264-2c692827d7ca

最终结果
root@controller:/home/dhbm# openstack network agent list

+--------------------------------------+--------------------+------------+-------------------+-------+-------+---------------------------+
| ID | Agent Type | Host | Availability Zone | Alive | State | Binary |
+--------------------------------------+--------------------+------------+-------------------+-------+-------+---------------------------+
| 326c6f4c-370a-4f06-abfb-6e7fa1bc6c67 | Linux bridge agent | controller | None | 🙂 | UP | neutron-linuxbridge-agent |
| 633c6363-6a63-4ac9-a589-41d28a1508ae | Metadata agent | controller | None | 🙂 | UP | neutron-metadata-agent |
| 9a8ead8b-2173-44f2-a102-8c1d4b4098da | L3 agent | controller | nova | 🙂 | UP | neutron-l3-agent |
| fce10fb1-f9a7-4f5e-862b-51955d52b149 | DHCP agent | controller | nova | 🙂 | UP |
————————————————
版权声明：本文为CSDN博主「哈哈虎123」的原创文章，遵循CC 4.0 BY-SA版权协议，转载请附上原文出处链接及本声明。
原文链接：https://blog.csdn.net/u010953609/article/details/127977142

删除存储cinder:

作者：【吴业亮】

博客：https://wuyeliang.blog.csdn.net/

查看服务

$ openstack volume service list
+------------------+----------------------+------+---------+-------+----------------------------+
| Binary | Host | Zone | Status | State | Updated At |
+------------------+----------------------+------+---------+-------+----------------------------+
| cinder-scheduler | devstack | nova | enabled | up | 2016-10-24T13:53:35.000000 |
| cinder-volume | devstack@lvmdriver-1 | nova | enabled | up | 2016-10-24T13:53:35.000000 |
+------------------+----------------------+------+---------+-------+----------------------------+

禁用服务

$ openstack volume service set --disable HOST_NAME BINARY_NAME
从数据库中删除节点

$ cinder-manage service remove BINARY_NAME HOST_NAME
————————————————
版权声明：本文为CSDN博主「Yeliang Wu」的原创文章，遵循CC 4.0 BY-SA版权协议，转载请附上原文出处链接及本声明。
原文链接：https://blog.csdn.net/wylfengyujiancheng/article/details/80011212/