Issue #5: Add 'nginx_proxy_cache_path' configuration option.

README.md

@@ -36,6 +36,10 @@ This value determines the largest file upload possible, as uploads are passed th
 
 The keepalive timeout. Should be set higher (10s+) if you have more polling-style traffic (AJAX-powered sites especially), or lower (<10s) if you have a site where most users visit a few pages and don't send any further requests.
 
+    nginx_proxy_cache_path: ""
+
+Set as the `proxy_cache_path` directive in the `nginx.conf` file. By default, this will not be configured (if left as an empty string), but if you wish to use Nginx as a reverse proxy, you can set this to a valid value (e.g. `"/var/cache/nginx keys_zone=cache:32m"`) to use Nginx's cache (further proxy configuration can be done in individual server configurations).
+
 ## Dependencies
 
 None.

defaults/main.yml

@@ -6,3 +6,4 @@ nginx_client_max_body_size: "64m"
 nginx_keepalive_timeout: "65"
 nginx_remove_default_vhost: false
 nginx_default_vhost_path: /etc/nginx/sites-enabled/default
+nginx_proxy_cache_path: ""

templates/nginx.conf.j2

@@ -30,5 +30,9 @@ http {
 
     #gzip  on;
 
+{% if nginx_proxy_cache_path %}
+    proxy_cache_path {{ nginx_proxy_cache_path }};
+{% endif %}
+
     include /etc/nginx/conf.d/*.conf;
 }