servers/roles/alpine/templates/local.nft.j2
Timotej Lazar fe6c35edf1 alpine: set up firewall
Get services from NetBox and enable SSH unconditionally for now.
2024-06-05 15:37:45 +02:00

25 lines
750 B
Django/Jinja

table inet filter {
chain input {
tcp dport ssh accept
{% for service in services %}
{% set prefixes = service | allowed_prefixes %}
{% set prefixes4 = prefixes | selectattr('family.value', '==', 4) | map('string') %}
{% set prefixes6 = prefixes | selectattr('family.value', '==', 6) | map('string') %}
{% set ports = service.ports | compact_numlist %}
# service {{ service.name }}
{% if prefixes4 or prefixes6 %}
{% if prefixes4 %}
ip saddr { {{ prefixes4 | join(', ') }} } tcp dport { {{ ports }} } accept
{% endif %}
{% if prefixes6 %}
ip6 saddr { {{ prefixes6 | join(', ') }} } tcp dport { {{ ports }} } accept
{% endif %}
{% else %}
tcp dport { {{ ports }} } accept
{% endif %}
{% endfor %}
}
}