Print Hostvar For All Host Under Group

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Jitender J

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Dec 3, 2021, 3:02:19 AM12/3/21
to Ansible Development
Hi Team,

Need your help got stuck 

I want to use host vars from inventory for all host under a specific group

I tried with the below example but only getting IP when I am passing hostname not getting anything when trying to get ansbile_host variable value for all host under that group with the group name 

 ip: "{{hostvars['test']['ansible_host']}}"   ------Not working 
 ip: "{{hostvars['test1']['ansible_host']}}" -------- Working 


[test]
test1 ansible_host=1.1.1.1
test2 ansible_host=2.2.2.2

james livulpi

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Dec 4, 2021, 6:55:52 PM12/4/21
to Ansible Development
Hello,

This doesn't look like its a supported way, you can use index of one and access but not full group:


- Jamer

Jitender J

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Dec 5, 2021, 10:51:32 PM12/5/21
to james livulpi, Ansible Development
Thanks .....any other way to use hosname wildcard 

 "{{hostvars['*test*']['ansible_host']}}"


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Todd Lewis

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Dec 6, 2021, 11:24:09 AM12/6/21
to Ansible Development
Is this what you're looking for?
$ cat groupvars-inventory.ini
[test]
test1 ansible_host=1.1.1.1
test2 ansible_host=2.2.2.2

[dev]
dev1 ansible_host=3.3.3.3
dev2 ansible_host=4.4.4.4

$ cat groupvars.yml
---
- name: Demo for accessing inventory group variables
  # ansible-playbook groupvars.yml -i ./groupvars-inventory.ini -v
  hosts: localhost
  tasks:
    - name: Gather the ansible_host values from hosts in the test group
      set_fact:
        test_ips: |
          {%- set ip=[] -%}
          {%- for h in groups['test'] -%}
          {%-   set _ = ip.append(hostvars[h]['ansible_host']) -%}
          {%- endfor %}{{ ip }}

    # TASK [Gather the ansible_host values from hosts in the test group] ****
    # ok: [localhost] => changed=false
    #   ansible_facts:
    #     test_ips:
    #     - 1.1.1.1
    #     - 2.2.2.2



    - name: Same thing but with legit filters in the dev group
      set_fact:
        dev_ips: "{{ groups['dev']|map('extract',hostvars,'ansible_host') }}"

    # TASK [Same thing but with legit filters in the dev group] ****
    # ok: [localhost] => changed=false
    #   ansible_facts:
    #     dev_ips:
    #     - 3.3.3.3
    #     - 4.4.4.4


On Friday, December 3, 2021 at 3:02:19 AM UTC-5 jiten...@zscaler.com wrote:

Jitender J

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Dec 7, 2021, 3:41:05 AM12/7/21
to Todd Lewis, Ansible Development
Thanks @Todd, First solution is working for me.... thank you very much 

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Regards,
Jitender
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