perf(): assets cache and php perf improvement

rootfs/etc/nginx/nginx.conf

@@ -56,6 +56,7 @@ http {
     root /rainloop;
     index index.php;
     charset utf-8;
+
     client_max_body_size <UPLOAD_MAX_SIZE>;
 
     location ^~ /data {
@@ -66,11 +67,38 @@ http {
       try_files $uri $uri/ index.php;
     }
 
+    # Assets cache control
+    # --------------------------------------
+    location ~* \.(?:html|xml|json)$ {
+      expires -1;
+    }
+
+    location ~* \.(?:css|js)$ {
+      expires 7d;
+      add_header Pragma public;
+      add_header Cache-Control "public";
+    }
+
+    location ~* \.(?:gif|jpe?g|png|ico|otf|eot|svg|ttf|woff|woff2)$ {
+      expires 30d;
+      add_header Pragma public;
+      add_header Cache-Control "public";
+    }
+
+    # PHP Backend
+    # --------------------------------------
     location ~* \.php$ {
+      try_files $uri =404;
+      include fastcgi_params;
+      fastcgi_split_path_info ^(.+\.php)(/.*)$;
+      fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
+      fastcgi_param PATH_INFO $fastcgi_path_info;
+      fastcgi_param HTTP_PROXY "";
       fastcgi_index index.php;
       fastcgi_pass unix:/tmp/php-fpm.sock;
-      fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
-      include /etc/nginx/fastcgi_params;
+      fastcgi_intercept_errors on;
+      fastcgi_request_buffering off;
+      fastcgi_param REMOTE_ADDR $http_x_real_ip;
     }
 
   }

rootfs/etc/php7/php-fpm.conf

@@ -1,13 +1,13 @@
 [global]
 daemonize = no
+error_log = /tmp/php_error.log
 
 [www]
 listen = /tmp/php-fpm.sock
-pm = dynamic
-pm.max_children = 5
-pm.start_servers = 2
-pm.min_spare_servers = 1
-pm.max_spare_servers = 3
+pm = ondemand
+pm.max_children = 30
+pm.process_idle_timeout = 10s
+pm.max_requests = 500
 chdir = /
 php_admin_value[expose_php] = Off
 php_admin_value[post_max_size] = <UPLOAD_MAX_SIZE>