Unable to substitute variable inside variable

[Sanjay]

Any idea/comments why this doesn't work?

Installed aversion -  2.9.0

Playbook : test.yml

-

--
  - name: substitute vars
    hosts: localhost
    gather_facts: False

    vars_files:
      - "vars.yml"

    tasks:
      - name: print vars
        debug: msg="{{ vars.a }}"

vars.yml

a: "{{ lookup('env', 'HOME') }}"

Output :

TASK [print vars] *****************************************************************************************************************************************************************************
ok: [localhost] => {


    "msg": "{{ lookup('env', 'HOME') }}"


}

Why it doesn't print the HOME env value?

Thanks

[Vladimir Botka]

On Mon, 9 Mar 2020 06:06:39 -0700 (PDT)
Sanjay <sanjay...@gmail.com> wrote:

> Any idea/comments why this doesn't work?
> Installed aversion - 2.9.0
>
> Playbook : test.yml

> --
> - name: substitute vars
> hosts: localhost
> gather_facts: False
> vars_files:
> - "vars.yml"
> tasks:
> - name: print vars
> debug: msg="{{ vars.a }}"
>
> vars.yml
> a: "{{ lookup('env', 'HOME') }}"
>
> Output :
> TASK [print vars]

> ok: [localhost] => {
> "msg": "{{ lookup('env', 'HOME') }}"
> }
>
> Why it doesn't print the HOME env value?

There is no reason toreference "vars". Try

debug: msg="{{ a }}"

HTH,

-vlado

[Sanjay]

Thanks, that seems  to be working!