Chapter 21. Time Parameters

ChronyAclRules

Access Control List of NTP clients. By default no clients are permitted. The default value is ['deny all'].

ChronyGlobalPoolOptions

Default pool options for the configured NTP pools in chrony.conf. If this is specified, NtpIburstEnable, MaxPoll, and MinPoll are ignored.

ChronyGlobalServerOptions

Default server options for the configured NTP servers in chrony.conf. If this is specified, NtpIburstEnable, MaxPoll, and MinPoll are ignored.

EnablePackageInstall

Set to true to enable package installation at deploy time. The default value is false.

MaxPoll

Specify maximum poll interval of upstream servers for NTP messages, in seconds to the power of two. Allowed values are 4 to 17. The default value is 10.

MinPoll

Specify minimum poll interval of upstream servers for NTP messages, in seconds to the power of two. The minimum poll interval defaults to 6 (64 s). Allowed values are 4 to 17. The default value is 6.

NtpIburstEnable

Specifies whether to enable the iburst option for every NTP peer. If iburst is enabled, when the NTP server is unreachable NTP will send a burst of eight packages instead of one. This is designed to speed up the initial syncrhonization. The default value is True.

NtpPool

NTP pool list. Defaults to [], so only NtpServer is used by default.

NtpServer

NTP servers list. The default value is ['0.pool.ntp.org', '1.pool.ntp.org', '2.pool.ntp.org', '3.pool.ntp.org'].

TimeZone

The timezone to be set on the overcloud. The default value is UTC.