A task to configure DNS resolvers to look at IPA master before deploying replicas and clients

set-dns-resolvers.yml

- name: "Set DNS to IPA master"
  hosts:
    - ipareplicas
    - ipaclients
  tasks:
    - name: determine resolvers
      set_fact:
        resolvers: "{{ resolvers|default([]) + [hostvars[item].ansible_default_ipv4.address] }}"
      with_items: "{{ groups.ipaserver }}"
    - debug:
        var: resolvers
    - name: "Configure resolv.conf"
      include_role:
        name: "ahuffman.resolv"
      vars:
        resolv_nameservers: "{{ resolvers  }}"
        resolv_domain: "{{ ipaserver_domain }} "
        resolv_search:
          - "{{ ipaserver_domain }}"

This snippet relies on https://github.com/ahuffman/ansible-resolv to configure resolv.conf