Variable precedence
As you learned in the previous section, there are a few major types of variables that can be defined in a myriad of locations. This leads to a very important question, what happens when the same variable name is used in multiple locations? Ansible has a precedence for loading variable data, and thus it has an order and a definition to decide which variable will "win". Variable value overriding is an advanced usage of Ansible, so it is important to fully understand the semantics before attempting such a scenario.
Precedence order
Ansible defines the precedence order as follows:
- Extra vars (from command line) always win
- Connection variables defined in inventory
- Most everything else
- Rest of the variables defined in inventory
- Facts discovered ...
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