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Allow variables to be passed in to template lookup plugin (#18662)

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This allows a single template to be evaluated with different values in
the same task. For example, with a template like 'x:{{a}}', one could do
something like this:

    - foo:
        a: "{{ lookup('template', 'x.j2', template_vars=dict(a=foo[item])) }}"
        b: "{{ lookup('template', 'x.j2', template_vars=dict(a=bar[item])) }}"
      with_items:
        - x
        - y

…and "a" and "b" would expand to different strings based on what we
passed in to the template lookup.
This commit is contained in:
Abhijit Menon-Sen 2017-08-02 09:29:27 +05:30 • committed by GitHub
parent 517c91df18
commit 20b0716948
2 changed files with 12 additions and 4 deletions
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3
docs/docsite/rst/playbooks_lookups.rst
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@ -556,6 +556,9 @@ Here are some examples::
- debug: msg="{{ lookup('template', './some_template.j2') }} is a value from evaluation of this template"
# Since 2.4, you can pass in variables during evaluation
- debug: msg="{{ lookup('template', './some_template.j2', template_vars=dict(x=42)) }} is evaluated with x=42"
- name: loading a json file from a template as a string
debug: msg="{{ lookup('template', './some_json.json.j2', convert_data=False) }} is a value from evaluation of this template"