- name: Test the multi-node-known-hosts role
  hosts: all
  roles:
    - multi-node-known-hosts
  post_tasks:
    - name: lookup known_hosts file
      command: cat ~/.ssh/known_hosts
      register: known_hosts

    - name: Set up host addresses
      set_fact:
        host_addresses: >
          {% set hosts = [] -%}
          {% for host, vars in hostvars.items() -%}
          {% if vars['nodepool']['private_ipv4'] | length > 0 -%}
            {% set _ = hosts.append(vars['nodepool']['private_ipv4']) -%}
          {% endif -%}
          {% if vars['nodepool']['public_ipv4'] | length > 0 -%}
            {% set _ = hosts.append(vars['nodepool']['public_ipv4']) -%}
          {% endif -%}
          {% if vars['nodepool']['public_ipv6'] | length > 0 -%}
            {% set _ = hosts.append(vars['nodepool']['public_ipv6']) -%}
          {% endif -%}
          {% endfor -%}
          {{- hosts | sort | unique -}}

    - name: assert that hosts are in known_hosts
      assert:
        that:
          - "item in known_hosts.stdout"
      with_items: "{{ host_addresses }}"