servers/roles/proxmox/templates/cluster.fw.j2

[OPTIONS]

enable: 1

[RULES]

IN Ping(ACCEPT) -log nolog # don’t be rude
IN SSH(ACCEPT) -i mgmt # for ansible etc.
IN HTTP(ACCEPT) # allow HTTP connections for renewing certificates with ACME

IN ACCEPT -source {{ nodes | map('device_address') | flatten | selectattr('family.value', '==', 4) | map(attribute='address') | join(',') }} # my cluster
IN ACCEPT -source {{ nodes | map('device_address') | flatten | selectattr('family.value', '==', 6) | map(attribute='address') | join(',') }} # my cluster

{% for service in cluster_services %}
{% set prefixes = service | allowed_prefixes %}
{% set ports = service.ports | compact_numlist(range_delimiter=':') %}
{% if prefixes %}
{% if prefixes | ipv4 %}
IN ACCEPT -source {{ prefixes | ipv4 | join(',') }} -p {{ service.protocol.value }} -dport {{ ports }} # {{ service.name }}
{% endif %}
{% if prefixes | ipv6 %}
IN ACCEPT -source {{ prefixes | ipv6 | join(',') }} -p {{ service.protocol.value }} -dport {{ ports }} # {{ service.name }}
{% endif %}
{% else %}
IN ACCEPT -p {{ service.protocol.value }} -dport {{ ports }} # {{ service.name }}
{% endif %}
{% endfor %}