Check IPv6 connections with ansible

ipv6-check.yml

---
- hosts: all
  gather_facts: false
  tasks:
    - name: Get information from ds.testmyipv6.com
      raw: curl http://ds.testmyipv6.com/
      changed_when: false
      register: connection_test

    - debug:
        msg: IPv6 supported
      when: "'You are successfully using IPv6 to connect to this server' in connection_test.stdout"

    - debug:
        msg: IPv6 not supported
      when: "'You are connecting to this server via IPv4' in connection_test.stdout"