Re: [ansible-project] item as part of a variable

[Matt Martz]

You will need to construct a key, and reference the value through hostvars
like:

when:
  - hostvars[inventory_hostname][item ~ "_version"] is defined

On Mon, Apr 16, 2018 at 8:46 AM, Michael Renner  wrote:

> Moin,
>
> I'm calling a playbook (ansible 2.4.2.0) with extra-vars for 3 system
> components, e.g. "foo_version=0.11.3 bar_version=0.10.2 baz_version=0.12.1
> env=dev".
>
> There is a statement In the playbook that takes care that this step is
> only executed if the corresponding variable is defined: "{{ item
> }}_version".
>
>   - name: copy war file
> copy:
>   src: "{{ tmpdir.path }}/{{ item }}.war"
>   dest: /opt/tomcat/webapps/
>   owner: tomcat
>   group: root
>   mode: 0440
> when:
>   - "{{ item }}_version" is defined
> with_items:
>   - foo
>   - bar
>   - baz
>
> But this fail:
>
> The offending line appears to be:
>
>   - "{{ item }}_version" is defined
>  ^ here
> We could be wrong, but this one looks like it might be an issue with
> missing quotes.
>
> How can I check if the variable is set?
>
> Thanks
>
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-- 
Matt Martz
@sivel
sivel.net

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Re: [ansible-project] item as part of a variable

[Brian Coca]

That won't work, try:

  - name: copy war file
copy:
  src: "{{ tmpdir.path }}/{{ item }}.war"
  dest: /opt/tomcat/webapps/
  owner: tomcat
  group: root
  mode: 0440
when: item + "_version" in hostvars[inventory_hostname]
with_items:
  - foo
  - bar
  - baz

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