一、controller节点安装ntp
1 安装ntp服务
2 Edit the chrony.conf file and add, change, or remove the following keys as necessary for your environment.
edit the /etc/chrony.conf, 服务选择阿里云的ntp服务器。
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server ntp1.aliyun.com iburst
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3 To enable other nodes to connect to the chrony daemon on the controller node, add this key to the same chrony.conf file mentioned above:
4 Restart the NTP service:
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# systemctl enable chronyd.service
# systemctl restart chronyd.service
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二、其他节点安装ntp
1 安装ntp服务
2 Configure the chrony.conf file and comment out or remove all but one server key. Change it to reference the controller node.
edit the /etc/chrony.conf file:
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server controller1 iburst
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3 Restart the NTP service.
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# systemctl enable chronyd.service
# systemctl restart chronyd.service
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三、Verify operation
1 Run this command on the controller node:
2 Run the same command on all other nodes:
openstack Rocky 社区版部署1.2 安装ntp service
原文：https://www.cnblogs.com/cloud-datacenter/p/12252675.html
