network:
  version: 2
  ethernets:
{% set dns_list = system_cfg.network.dns.servers | default([]) %}
{% set search_list = system_cfg.network.dns.search | default([]) %}
{% for iface in system_cfg.network.interfaces %}
{% set iface_mac = '52:54:00' | community.general.random_mac(seed=hostname if loop.index0 == 0 else hostname ~ '-nic' ~ loop.index0) %}
{% set has_static = (iface.ip | default('') | string | length) > 0 %}
    id{{ loop.index0 }}:
      match:
        macaddress: "{{ iface_mac }}"
{% if has_static %}
      addresses:
        - "{{ iface.ip }}/{{ iface.prefix }}"
{% if iface.gateway | default('') | string | length %}
      routes:
        - to: default
          via: "{{ iface.gateway }}"
{% endif %}
{% else %}
      dhcp4: true
{% if loop.index0 == 0 and (dns_list | length or search_list | length) %}
      dhcp4-overrides:
{% if dns_list | length %}
        use-dns: false
{% endif %}
{% if search_list | length %}
        use-domains: false
{% endif %}
{% endif %}
{% endif %}
{% if loop.index0 == 0 and (dns_list or search_list) %}
      nameservers:
{% if dns_list %}
        addresses:
{% for dns in dns_list %}
          - "{{ dns }}"
{% endfor %}
{% endif %}
{% if search_list %}
        search:
{% for search in search_list %}
          - "{{ search }}"
{% endfor %}
{% endif %}
{% endif %}
{% endfor %}