The BeeGFS HA role has a set of variables to perform BeeGFS HA install, uninstall, performance tuning, and NTP settings.
There are different locations where the variables and their defaults are defined. Any variables can be overridden by the user by specifying the variables in one of the user's inventory files.
The variables in BeeGFS HA Defaults are for OS-agnostic settings. Review the file for the list of variables and their details.
The variables in beegfs_ha_common/vars/* are OS-specific variables. Review the applicable OS files for the list of
variables and their details.
The OS files have inheritance setup so there will be multiple files that need to be viewed. As such, not only the OS distribution file (i.e., centos_8.yml) will be applied but also the distribution's OS family file (redhat.yml) will be used.
Note that the variables in the OS distribution files have the prefix default_. The prefix is specially used by the
role, so when those variables are to be overridden in the user's inventory file(s), the prefix should be removed.
For example, use beegfs_ha_management_tool instead of default_beegfs_ha_management_tool.
Variables in the different files have order of precedence. Below is the order of precedence which the variables have during a play (from highest to lowest):
1. Variables in user's inventory
2. Vars/OS distribution version
3. Vars/OS family
4. Defaults/main