auto lo
iface lo inet loopback

{% for iface in system_cfg.network.interfaces %}
{% set ifname = iface.name if (iface.name | default('') | string | length) else (configuration_eni_detected[loop.index0] | default('eth' ~ loop.index0)) %}
auto {{ ifname }}
{% if iface.ip | default('') | string | length %}
iface {{ ifname }} inet static
    address {{ iface.ip }}/{{ iface.prefix }}
{% if iface.gateway | default('') | string | length %}
    gateway {{ iface.gateway }}
{% endif %}
{% if loop.index0 == 0 and configuration_dns_list %}
    dns-nameservers {{ configuration_dns_list | join(' ') }}
{% endif %}
{% if loop.index0 == 0 and configuration_dns_search %}
    dns-search {{ configuration_dns_search | join(' ') }}
{% endif %}
{% else %}
iface {{ ifname }} inet dhcp
{% endif %}

{% endfor %}