- name: Configure NAT
  hosts: servers
  gather_facts: false
  tasks:
    - name: Uninstall Hetzner Cloud Utils.
      ansible.builtin.apt:
        state: absent
        name: [hc-utils]

    - name: Check if default route exists.
      ansible.builtin.command: ip route
      changed_when: "'default' in route_output.stdout"
      register: route_output
      notify:
        - Disable default IP route.

    - name: Configure networking.
      ansible.builtin.blockinfile:
        path: /etc/network/interfaces
        marker: "# {mark} CONFIGURE NETWORKING"
        block: |
          auto enp7s0
          iface enp7s0 inet dhcp
              post-up ip route add default via 10.0.0.1
          dns-nameservers 8.8.8.8 1.1.1.1

    - name: Restart networking module.
      ansible.builtin.systemd:
        state: restarted
        name: networking

  handlers:
    - name: Disable default IP route.
      ansible.builtin.command:
        ip route del default
      changed_when: true