Add nft_custom_includes option for optional includes in the main filter table.

defaults/main.yml

@@ -102,6 +102,11 @@ nft_global_host_rules: {}
 # Custom content (tables, include,…) to add in Nftables configuration.
 nft__custom_content: ''
                                                                    # ]]]
+# .. envvar:: nft_custom_includes [[[
+#
+# Custom includes to add into the main Nftables filter configuration.
+nft_custom_includes: ''
+                                                                   # ]]]
 # .. envvar:: nft_conf_dir_path [[[
 #
 # Path to the sub directory for Nftables configuration files.

templates/etc/nftables.conf.j2

@@ -29,6 +29,15 @@ table inet filter {
 	include "{{ nft_set_conf_path }}"
 	include "{{ nft_input_conf_path }}"
 	include "{{ nft_output_conf_path }}"
+{% if nft_custom_includes | default() %}
+  {% if nft_custom_includes is string %}
+	include "{{ nft_custom_includes }}"
+  {% elif nft_custom_includes is iterable and (nft_custom_includes is not string and nft_custom_includes is not mapping) %}
+    {% for include in nft_custom_includes %}
+	include "{{ include }}"
+    {% endfor %}
+  {% endif %}
+{% endif %}
 }
 
 {% if nft__nat_table_manage %}