Ansible: How to fetch OS details and use them as tags

Question

I am trying to update my ec2 instance tags with OS details using Ansible.

I am able to achieve it by using the below code. Is there a better/efficient way to do this.

Expecting tag format ex:

platform = "Linux-Centos-7"

Inventory:-

---
[dev]
127.0.0.1
127.0.0.2

playbook:

- hosts: dev
  tasks:
  - name: Update OS tags for EC2 Instances
    block:
    - name: Fetch instance_id form ipaddress
      ec2_instance_info:
       filters:
        network-interface.addresses.private-ip-address: "{{ hostvars[inventory_hostname]['ansible_default_ipv4']['address'] }}"
      register: instance_ids
      delegate_to: localhost
    - name: Create OS tags on a EC2 for every instance_id
      ec2_tag:
        resource: "{{instance_ids.instances[0].instance_id}}"
        state: present
        tags:
          platform: "{{ hostvars[inventory_hostname].ansible_system}}-{{ hostvars[inventory_hostname].ansible_distribution }}-{{ hostvars[inventory_hostname].ansible_distribution_major_version }}"
      delegate_to: localhost

question from:https://stackoverflow.com/questions/65830548/ansible-how-to-fetch-os-details-and-use-them-as-tags

Answer 1

Waitting for answers