From cea5350a3c57c45ab6d1bf1ff4d6480705f28612 Mon Sep 17 00:00:00 2001
From: Sam <sam.saffron@gmail.com>
Date: Tue, 15 Jul 2014 10:30:27 +1000
Subject: [PATCH] FIX: cache avatars in NGINX

---
 config/nginx.sample.conf | 23 +++++++++++++++++++----
 1 file changed, 19 insertions(+), 4 deletions(-)

diff --git a/config/nginx.sample.conf b/config/nginx.sample.conf
index 4b56e39cec0..bda6022ca08 100644
--- a/config/nginx.sample.conf
+++ b/config/nginx.sample.conf
@@ -10,6 +10,8 @@ upstream discourse {
   server unix:/var/www/discourse/tmp/sockets/thin.3.sock;
 }
 
+proxy_cache_path /var/nginx/cache keys_zone=one:10m max_size=200m;
+
 # If you are going to use Puma, use these:
 #
 # upstream discourse {
@@ -112,10 +114,7 @@ server {
       break;
     }
 
-    # This big block is needed so we can selectively enable
-    # acceleration for backups and avatars
-    # see note about repetition above
-    location ~ ^/(backups|letter_avatar|user_avatar) {
+    location ~ ^/backups/ {
       proxy_set_header Host $http_host;
       proxy_set_header X-Real-IP $remote_addr;
       proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
@@ -126,6 +125,22 @@ server {
       break;
     }
 
+    # This big block is needed so we can selectively enable
+    # acceleration for backups and avatars
+    # see note about repetition above
+    location ~ ^/(letter_avatar|user_avatar) {
+      proxy_set_header Host $http_host;
+      proxy_set_header X-Real-IP $remote_addr;
+      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+      proxy_set_header X-Forwarded-Proto $thescheme;
+      # note x-accel-redirect can not be used with proxy_cache
+      proxy_cache one;
+      proxy_cache_valid any 1m;
+      proxy_cache_valid 200 301 302 7d;
+      proxy_pass http://discourse;
+      break;
+    }
+
     # this means every file in public is tried first
     try_files $uri @discourse;
   }