How can I take a list of server names and append a resource URI and port to ] each be

Question

i have this list of ansible inventory

servers:
  - server01
  - server02
  - server03
  - server04

i want to do like this example I want: https://server01:8000;https://server02:8000],https://server03:8000;https://server04:8000

but using set_fact

what is the use case? perhaps using a template is better. – Kevin C Oct 21 '22 at 13:08 — Kevin C, Oct 21 '22 at 13:08
i want to use in variable inside ansible .j2 – ahmed Oct 22 '22 at 14:30 — ahmed, Oct 22 '22 at 14:30

larsks · Answer 1 · 2022-10-22T15:29:30.937

2

You can use use a Jinja template to generate your desired output:

- hosts: localhost
  gather_facts: false
  vars:
    servers:
      - server01
      - server02
      - server03
      - server04
  tasks:
    - set_fact:
        urls: |-
          {% for server in servers -%}
          https://{{ server }}:8000{% if loop.index % 2 == 0 %}]{% endif %}{% if not loop.last %};{% endif %}
          {% endfor %}

    - debug:
        var: urls

The above playbook will output:

TASK [debug] *******************************************************************
ok: [localhost] => {
    "urls": "https://server01:8000;https://server02:8000];https://server03:8000;https://server04:8000]"
}

edited Oct 22 '22 at 15:29

answered Oct 21 '22 at 14:21

larsks

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i want the url to be like this "https://server01:8000;https://server02:8000],https://server03:8000;https://server04:8000" between two"" and ; after 2 url ], the last one without – ahmed Oct 22 '22 at 14:25
Then pipe the `urls` variable to `join(';')`. – larsks Oct 22 '22 at 14:56
and after 2 servers server01:8000;https://server02:8000], end with this ], – ahmed Oct 22 '22 at 15:09
See my update which I believe produces the output you want. – larsks Oct 22 '22 at 15:29
i can remove the ] from the last server ? – ahmed Oct 22 '22 at 15:45
i mean the last one of my list dont use ] – ahmed Oct 22 '22 at 15:47
See the conditional that checks `loop.last` before adding a `;`? You can apply the same check to the `]`. – larsks Oct 22 '22 at 16:45
look i mean like this "urls": "https://server01:8000;https://server02:8000],https://server03:8000;https://server04:8000" – ahmed Oct 22 '22 at 18:27
I understand. I have explained how to do that. I think I've invested enough time in this answer; I hope it helped you make forward progress. – larsks Oct 22 '22 at 19:11

How can I take a list of server names and append a resource URI and port to ] each be

1 Answers1