3 The Network Time Protocol (NTP) is a networking protocol for clock synchronization between computer systems. Time synchronization is important to Kubernetes and Etcd.
7 To start the ntpd(or chrony) service and enable it at system boot. There are related specific variables:
13 The NTP service would be enabled and sync time automatically.
15 ## Custimize the NTP configure file
17 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.
21 ntp_manage_config: true
23 - "0.your-ntp-server.org iburst"
24 - "1.your-ntp-server.org iburst"
25 - "2.your-ntp-server.org iburst"
26 - "3.your-ntp-server.org iburst"
31 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.
34 ntp_tinker_panic: true
37 Force sync time immediately by NTP after the ntp installed, which is useful in newly installed system.
40 ntp_force_sync_immediately: true