deploy_keepalived/molecule/with_custom_conf/prepare.yml

---
- name: Prepare
  hosts: all
  become: true
  tasks:
    - name: "Generate custom keepalived.conf template" # noqa: run-once[task]
      delegate_to: localhost
      run_once: true
      block:
        - name: "Generate custom keepalived.conf template"
          ansible.builtin.copy:
            content: |
              {% raw -%}
              # {{ ansible_managed }}
              # THIS IS A CUSTOM CONF
              global_defs {
                script_user keepalived_script
                enable_script_security
              }

              vrrp_instance {{ deploy_keepalived_vrrp_instance_name }} {
                interface {{ deploy_keepalived_interface }}

                state {{ deploy_keepalived_state }}
                virtual_router_id {{ deploy_keepalived_router_id }}
                priority {{ deploy_keepalived_priority }}
                advert_int {{ deploy_keepalived_advert_interval }}

                nopreempt

              {% if deploy_keepalived_unicast_peers %}
                unicast_src_ip {{ deploy_keepalived_unicast_source }}
                unicast_peer {
              {% for peer in deploy_keepalived_unicast_peers %}
                  {{ peer }}
              {% endfor %}
                }
              {% endif %}

                authentication {
                  auth_type PASS
                  auth_pass {{ deploy_keepalived_auth_passwd }}
                }

                virtual_ipaddress {
              {% for vip in deploy_keepalived_virtual_ips %}
                  {{ vip }}
              {% endfor %}
                }

                notify {{ deploy_keepalived_scripts_dir }}/{{ deploy_keepalived_notify_script }}
              }
              {%- endraw %}              
            dest: /tmp/keepalived.conf.j2
            mode: '0644'