8.3. Ensuring the presence of A and AAAA DNS records in IdM using Ansible


Follow this procedure to use an Ansible playbook to ensure that A and AAAA records for a particular IdM host are present. In the example used in the procedure below, an IdM administrator ensures the presence of A and AAAA records for host1 in the idm.example.com DNS zone.

Prerequisites

  • You have configured your Ansible control node to meet the following requirements:

    • You are using Ansible version 2.15 or later.
    • You have installed the ansible-freeipa package.
    • The example assumes that in the ~/MyPlaybooks/ directory, you have created an Ansible inventory file with the fully-qualified domain name (FQDN) of the IdM server.
    • The example assumes that the secret.yml Ansible vault stores your ipaadmin_password and that you have access to a file that stores the password protecting the secret.yml file.
  • The target node, that is the node on which the freeipa.ansible_freeipa module is executed, is part of the IdM domain as an IdM client, server or replica.
  • The idm.example.com zone exists and is managed by IdM DNS. For more information about adding a primary DNS zone in IdM DNS, see Using Ansible playbooks to manage IdM DNS zones.

Procedure

  1. Navigate to the /usr/share/ansible/collections/ansible_collections/freeipa/ansible_freeipa/playbooks/dnsrecord directory:

    $ cd /usr/share/ansible/collections/ansible_collections/freeipa/ansible_freeipa/playbooks/dnsrecord
  2. Make a copy of the ensure-A-and-AAAA-records-are-present.yml Ansible playbook file. For example:

    $ cp ensure-A-and-AAAA-records-are-present.yml ensure-A-and-AAAA-records-are-present-copy.yml
  3. Open the ensure-A-and-AAAA-records-are-present-copy.yml file for editing.
  4. Adapt the file by setting the following variables in the freeipa.ansible_freeipa.ipadnsrecord task section:

    • Indicate that the value of the ipaadmin_password variable is defined in the secret.yml Ansible vault file.
    • Set the zone_name variable to idm.example.com.
    • In the records variable, set the name variable to host1, and the a_ip_address variable to 192.168.122.123.
    • In the records variable, set the name variable to host1, and the aaaa_ip_address variable to ::1.

      This is the modified Ansible playbook file for the current example:

    ---
    - name: Ensure A and AAAA records are present
      hosts: ipaserver
      become: true
      gather_facts: false
    
      tasks:
      # Ensure A and AAAA records are present
      - name: Ensure that 'host1' has A and AAAA records.
        freeipa.ansible_freeipa.ipadnsrecord:
          ipaadmin_password: "{{ ipaadmin_password }}"
          zone_name: idm.example.com
          records:
          - name: host1
            a_ip_address: 192.168.122.123
          - name: host1
            aaaa_ip_address: ::1
  5. Save the file.

    For details about variables and example playbooks in the FreeIPA Ansible collection, see the /usr/share/ansible/collections/ansible_collections/freeipa/ansible_freeipa/README-dnsrecord.md file and the /usr/share/ansible/collections/ansible_collections/freeipa/ansible_freeipa/playbooks/dnsrecord directory on the control node.

  6. Run the playbook:

    $ ansible-playbook --vault-password-file=password_file -v -i inventory.file ensure-A-and-AAAA-records-are-present-copy.yml
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