Update ghost nginx config to include assets and images caching

Author: robincher

nginx/conf/ghost.conf

@@ -22,4 +22,22 @@ server {
 
     proxy_pass http://ghost:2368;
   }
+
+  # Cache Ghost Images
+  location ~ "/assets/images/(.*)-([a-z0-9]{10})\.(?:png|jpe?g|tiff)(.*)$" {
+    expires           max;
+    add_header        Cache-Control public;
+    add_header        Vary Accept;
+    proxy_pass        http://ghost:2368/$uri$webp_suffix;
+    access_log        off;
+  }
+
+  # Cache Ghost css and js 
+  location ~* \.(?:css|js) {
+    expires           max;
+    add_header        Cache-Control public;
+    proxy_pass        http://ghost:2368/$uri;
+    access_log        off;
+  }
+
 }