List comprehension like in defaults/main.yml

[Ju Ju]

Hi,

I need to create a list of fqdn according to à list of subdomain and a domain:

app__domain: '{{ ansible_local.core.domain
if (ansible_local|d() and ansible_local.core|d() and
ansible_local.core.domain|d())
else (ansible_domain if ansible_domain else ansible_hostname) }}'

app_subdomains: [ '', 'api' , 'www' ]

app_fqdns: .... ?

app_fqdns must be ['mydomain.com', 'api.mydomain.com', 'www.mydomain.com ]

How could I do this ?

PS: I'm using debops.

Azzz

[Maciej Delmanowski]

Hello,

I would do it in a template, but it can be done in a variable as well. An example in a playbook:

---

- hosts: localhost

  gather_facts: False

  vars:

    app__domain: 'example.com'

    app__subdomains: [ '', 'api', 'www' ]

    app__fqdns: |

      {% set my_list = [] %}

      {% for subdomain in app__subdomains %}

      {% if subdomain %}

      {% set _ = my_list.append(subdomain + '.' + app__domain) %}

      {% else %}

      {% set _ = my_list.append(app__domain) %}

      {% endif %}

      {% endfor %}

      {{ my_list }}

  tasks:

    - debug: var=app__fqdns

An example output:

PLAY [localhost] ***************************************************************

TASK [debug] *******************************************************************

ok: [localhost] => {

    "app__fqdns": [

        "example.com", 

        "api.example.com", 

        "www.example.com"

    ]

}

How do you like DebOps?

Cheers,

Maciej