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The value of groups_tree_var = {{ groups_tree_var }}.
This comes from host, not the parents or grandparents.
The value of the grandparent variable grandparent_var is
not overridden and is = {{ grandparent_var }}
The value of the parent variable is not overridden and
is = {{ parent_var }}
The variable 'overridden_in_parent' is set in the parent
and grandparent, so the parent wins. It's value is = {{ overridden_in_parent }}.
The values of 'uno', 'dos', and 'tres' are set in group_vars/all but 'tres' is
set to the value of 'three' in group_vars/local, which should override it.
uno = {{ uno }}
dos = {{ dos }}
tres = {{ tres }}
The values of 'a', 'b', 'c', and 'd' are set in host_vars/local and should not
be clobbered by values that are also set in group_vars.
a = {{ a }}
b = {{ b }}
c = {{ c }}
d = {{ d }}
The value of 'badwolf' is set via the include_vars plugin.
badwolf = {{ badwolf }}
The value of 'winter' is set via the main.yml in the role.
winter = {{ winter }}
Here's an arbitrary variable set as vars_files in the playbook.
vars_file_var = {{ vars_file_var }}
And vars.
vars = {{ vars_var }}
Variables about other hosts can be looked up via hostvars. This includes
facts but here we'll just access a variable defined in the groups.
{{ hostvars['testhost2']['a'] }}
Ansible has pretty basic precedence rules for variable overriding. We already have
some tests above about group order. Here are a few more.
* -e variables always win
* then comes "most everything else"
* then comes variables defined in inventory
* then "role defaults", which are the most "defaulty" and lose in priority to everything.
Given the above rules, here's a test that a -e variable overrides inventory,
and also defaults, and role vars.
etest = {{ etest }}
Now a test to make sure role variables can override inventory variables.
role_var_beats_inventory = {{ role_var_beats_inventory }}
Role variables should also beat defaults.
role_var_beats_default = {{ role_var_beats_default }}
But defaults are lower priority than inventory, so inventory should win.
inventory_beats_default = {{ inventory_beats_default }}
That's the end of the precedence tests for now, but more are welcome.
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