Forgot to adapt some IF statements. All config is normalized now for front.

So true/false now matches the boolean value True/False.
Instead if {% IF X == 'true' %} we should now use {% IF X %}

core/nginx/conf/nginx.conf

@@ -91,7 +91,7 @@ http {
       client_max_body_size {{ MESSAGE_SIZE_LIMIT|int + 8388608 }};
 
       # Listen on HTTP only in kubernetes or behind reverse proxy
-      {% if KUBERNETES_INGRESS == 'true' or TLS_FLAVOR in [ 'mail-letsencrypt', 'notls', 'mail' ] %}
+      {% if KUBERNETES_INGRESS or TLS_FLAVOR in [ 'mail-letsencrypt', 'notls', 'mail' ] %}
       listen 80;
 {% if SUBNET6 %}
       listen [::]:80;
@@ -166,7 +166,7 @@ http {
       include /overrides/*.conf;
 
       # Actual logic
-      {% if ADMIN == 'true' or WEBMAIL != 'none' %}
+      {% if ADMIN or WEBMAIL != 'none' %}
       location ~ ^/(sso|static)/ {
         include /etc/nginx/proxy.conf;
         proxy_pass http://$admin;
@@ -219,7 +219,7 @@ http {
         return 302 /sso/login;
       }
       {% endif %}
-      {% if ADMIN == 'true' %}
+      {% if ADMIN %}
        location {{ WEB_ADMIN }} {
          include /etc/nginx/proxy.conf;
          proxy_pass http://$admin;