webserver: add additional parameter options

webserver/templates/sites/mediawiki.conf

@@ -9,7 +9,9 @@ server {
 
     server_name {{server.server_names|default([server.server_name])|join(" ")}};
     root {{server.root}};
+    {% if server.indices is defined %}
     index {{server.indices|join(" ")}};
+    {% endif %}
 
     {% if server.include_acme is defined and server.include_acme %}
     include /etc/nginx/snippets/acmetool.conf;

webserver/templates/sites/tlsproxy.conf

@@ -23,6 +23,12 @@ server {
     set $sso_group "{{server.sso_group}}";
     {% endif %}
 
+    {% if server.params is defined %}
+    {% for param in server.params %}
+            {{param.key}} {{param.value}};
+    {% endfor %}
+    {% endif %}
+
     {% for location in server.public_locations %}
         {% set server = server %}
         {% include "locations/%s.conf"|format(location.type) %}

webserver/templates/sites/webapp.conf

@@ -7,7 +7,15 @@ server {
 
     server_name {{server.server_names|default([server.server_name])|join(" ")}};
     root {{server.root}};
+    {% if server.indices is defined %}
     index {{server.indices|join(" ")}};
+    {% endif %}
+
+    {% if server.params is defined %}
+    {% for param in server.params %}
+            {{param.key}} {{param.value}};
+    {% endfor %}
+    {% endif %}
 
     {% if server.include_acme is defined and server.include_acme %}
     include /etc/nginx/snippets/acmetool.conf;