ansible - J2 template

[dudu.c...@gmail.com]

Ansible question 

I have a variable, let call it value1 and a J2 template.

The J2 template includes the following line :

LINE=” This string mut be included      this string is optional= {{ value1}}”

What I need to implement 

If value1 is defined with a string – let assume that the string is OK  (Value1: OK)

, the file should be 

LINE=” This string must be included        this string is optional= OK”

If value1 is not defined (empty Value1: ) –the file should be 

LINE=” This string must be included”

So how the J2 should be configured?

[Dick Visser]

LINE=” This string must be included{% if value1 is defined %}
this string is optional= {{ value1 }}{% endif %}”

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--
Dick Visser
Trust & Identity Service Operations Manager
GÉANT

[Vladimir Botka]

On Wed, 30 Jun 2021 23:17:21 -0700 (PDT)
"dudu.c...@gmail.com" <dudu.c...@gmail.com> wrote:

> If value1 is not defined (empty Value1: )

Test the variable is both defined and not empty,
e.g. (minimal version)

{% if value1 is defined and value1|d('')|length > 0 %}
{{ value1 }}
{% else %}

This string must be included

{% endif %}

--
Vladimir Botka