Logging must be set to false to be disabled

templates/etc/nginx/sites-available/_base.j2

@@ -102,16 +102,20 @@ server {
 {% endfor %}	# <-- Custom locations
 {% endif %}
 
-{% if item.use_access_log is defined and item.use_access_log %}
+{% if item.use_access_log is defined %}
+{% if item.use_access_log %}
 	access_log {{ nginx_log_dir }}/{{ __main_name }}_access.log combined;
 {% else %}
 	access_log off;
 {% endif %}
-{% if item.use_error_log is defined and item.use_error_log %}
+{% endif %}
+{% if item.use_error_log is defined %}
+{% if item.use_error_log %}
 	error_log {{ nginx_log_dir }}/{{ __main_name }}_error.log {{ nginx_error_log_level }};
 {% else %}
 	error_log off;
 {% endif %}
+{% endif %}
 }
 
 {% if item.redirect_from is defined and item.redirect_from is iterable %}

tests/test.yml

@@ -122,6 +122,7 @@
         filename : 'first-test'
         override_try_files: '$uri $uri index.htm index.html'
         manage_local_content: false
+        use_error_log: false
         more:
           - 'autoindex off;'
           - 'add_header X-ansible-default 1;'