How can I set a default that includes information from a variable?

[David Reagan]

I've tried the following code:

- name: ensure users exist.
  when: item.value.state is defined
  user:
    state: "{{ item.value.state }}"
    name: "{{ item.value.username }}"
    comment: "{{ item.value.fullname }}"
    password: "{{ item.value.crypted_pass }}"
    createhome: "yes"
    home: "{{ item.value.home|default(/home/{{ item.value.username }}) }}"
    shell: "{{ item.value.shell }}"
    uid: "{{ item.value.uid }}"
  with_dict: "{{ aspects_local_users }}"
  tags:
    - aspects_local_users

Basically, if aspects_local_users.user.home is set, I want to use that value. Otherwise I want to use /home/<username>.

As I expected, you can't nest {{ }} to get the value out of item.value.username. I, obviously, can get the value if I just do this:

home: "{{ blah|default(item.value.username) }}"

But that leaves off the /home.

Note, I can just create a second task and run one when item.value.home is defined and the other when it isn't. But I would like to just use one task. :)

Thanks for any ideas or suggestions!

I'm on Ansible 2.3.2.0 installed from Pip. Ubuntu 16.04 64bit. Testing against vagrant vms.

[Adam Shantz]

David - 

I haven't tried doing exactly what you're trying to do, but I did something similar.  I've changed the variable names to protect the innocent):

- name: remember variables

  set_fact:

    myvar: "{{var1}}{{item.path|basename| regex_replace('^' + version_regex + '$', '\\1') }}" #regex parses version from jar file name

  with_items: "{{output.files}}"

Maybe that'll give you something to go off?

-Adam

[Adam]

I probably should have explained that "version_regex" is a variable defined in roles/role/vars/main.yml.

-Adam

[Kai Stian Olstad]

On 06.09.2017 23:00, David Reagan wrote:
> I've tried the following code:
>
> - name: ensure users exist.
> when: item.value.state is defined
> user:
> state: "{{ item.value.state }}"
> name: "{{ item.value.username }}"
> comment: "{{ item.value.fullname }}"
> password: "{{ item.value.crypted_pass }}"
> createhome: "yes"

> *home: "{{ item.value.home|default(/home/{{ item.value.username }})
> }}"*

> shell: "{{ item.value.shell }}"
> uid: "{{ item.value.uid }}"
> with_dict: "{{ aspects_local_users }}"
> tags:
> - aspects_local_users
>
> Basically, if aspects_local_users.user.home is set, I want to use that
> value. Otherwise I want to use /home/<username>.
>
> As I expected, you can't nest {{ }} to get the value out of
> item.value.username. I, obviously, can get the value if I just do this:

Correct syntax should be:

home: "{{ item.value.home | default('/home/' + item.value.username) }}"

--
Kai Stian Olstad

[David Reagan]

Thank you! That worked perfect. :)