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README updated to mention vars

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Emmanuel BENOîT 2022-09-18 10:16:53 +02:00
parent 47a2704164
commit cf4462da91
1 changed files with 8 additions and 3 deletions
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README.md
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@ -51,9 +51,14 @@ them obey a single conditional. The instruction must include a `block` field,
containing the list of instructions which are part of the block. It may have
a `rescue` field, containing a list of instructions which will be executed on
error, and `always`, which may contain a list of instructions to execute in
all cases. If the `locals` field is defined, it must contain a table of local
variables to define. If these variables already exist, their state will be
saved and they will be restored after the block is done executing.
all cases.
If the `vars` field is defined on an instruction, it must contain a table of
local variables to define. Their values are computed after the loop variable
is evaluated, but before the condition is. If these variables already existed,
their state will be saved and they will be restored after the instruction is
done executing. This is different from the core Ansible behaviour, which does
not evaluate the `vars` unless they are used.
A somewhat silly example can be found in the `example` directory. Trying to
execute it using `ansible-inventory --graph` results in the following output.