1.4 KiB
NTP synchronization
The Network Time Protocol (NTP) is a networking protocol for clock synchronization between computer systems. Time synchronization is important to Kubernetes and Etcd.
Enable the NTP
To start the ntpd(or chrony) service and enable it at system boot. There are related specific variables:
ntp_enabled: true
The NTP service would be enabled and sync time automatically.
Customize the NTP configure file
In the Air-Gap environment, the node cannot access the NTP server by internet. So the node can use the customized ntp server by configuring ntp file.
ntp_enabled: true
ntp_manage_config: true
ntp_servers:
- "0.your-ntp-server.org iburst"
- "1.your-ntp-server.org iburst"
- "2.your-ntp-server.org iburst"
- "3.your-ntp-server.org iburst"
Setting the TimeZone
The timezone can also be set by the ntp_timezone , eg: "Etc/UTC","Asia/Shanghai". If not set, the timezone will not change.
ntp_enabled: true
ntp_timezone: Etc/UTC
Advanced Configure
Enable tinker panic is useful when running NTP in a VM environment to avoiding clock drift on VMs. It only takes effect when ntp_manage_config is true.
ntp_tinker_panic: true
Force sync time immediately by NTP after the ntp installed, which is useful in newly installed system.
ntp_force_sync_immediately: true