Ansible Get Host Name and IP for Inventory Host groups

Question

I am trying to get host name and IP address of hosts and save them to a file.

I have this solution working;

- name: Create File with hosts and IP address.
  when: inventory_hostname in groups['local']
  lineinfile:
    dest: "{{store_files_path}}/{{ansible_date_time.date}}/{{ansible_date_time.time}}/hosts.txt"
    create: yes
    line: "{{hostvars[inventory_hostname].ansible_hostname}}:{{hostvars[inventory_hostname].ansible_default_ipv4.address}}"

But the issue is in my hosts file, I have two groups, local and Servers. I want to get the Servers only and not the local group which is the localhost only.

I have tried the below line but it doesn't work, it gives me an error.

line: "{{ hostvars[ groups['Servers'][0] ].ansible_hostname }} :{{ hostvars[ groups['Servers'][0] ].ansible_default_ipv4.address }}"

I have searched around and that's what I found, how should I do this?

Answer 1

I would use a jinja template for this :

# hosts_file.j2
{% for server in groups['Servers'] %}
{{hostvars[server]['ansible_facts']['hostname']}}:{{hostvars[server]['ansible_facts']['default_ipv4']['address']}}
{% endfor %}

- hosts: localhost
  tasks:
    - name: create hosts file from template
      template: 
        src: hosts_file.j2
        dest: {{store_files_path}}/{{ansible_date_time.date}}/{{ansible_date_time.time}}/hosts.txt