{# Generate port name-alias map for isc-dhcp-relay to parse. Each line contains one #}
{#  name-alias pair of the form "<name> <alias>" #}
{% for port, config in PORT.items() %}
    {{- port }} {% if "alias" in config %}{{ config["alias"] }}{% else %}{{ port }}{% endif %} {{- "\n" -}}
{% endfor -%}