Use nginx to delivery icon image

nginx.conf

@@ -24,6 +24,12 @@ server {
                 add_header Cache-Control public;
          }
 
+        location /icons/ {
+                root /home/isucon/isubata/webapp/ruby;
+                expires 24h;
+                add_header Cache-Control public;
+        }
+
         location / {
                 proxy_set_header Host $http_host;
                 proxy_pass http://app:5000;

webapp/ruby/app.rb

@@ -272,9 +272,7 @@ def user
     end
 
     if !avatar_name.nil? && !avatar_data.nil?
-      statement = db.prepare('INSERT INTO image (name, data) VALUES (?, ?)')
-      statement.execute(avatar_name, avatar_data)
-      statement.close
+      File.write("icons/#{avatar_name}", avatar_data)
       statement = db.prepare('UPDATE user SET avatar_icon = ? WHERE id = ?')
       statement.execute(avatar_name, user['id'])
       statement.close
@@ -289,19 +287,19 @@ def user
     redirect '/', 303
   end
 
-  get '/icons/:file_name' do
-    file_name = params[:file_name]
-    statement = db.prepare('SELECT * FROM image WHERE name = ?')
-    row = statement.execute(file_name).first
-    statement.close
-    ext = file_name.include?('.') ? File.extname(file_name) : ''
-    mime = ext2mime(ext)
-    if !row.nil? && !mime.empty?
-      content_type mime
-      return row['data']
-    end
-    404
-  end
+  # get '/icons/:file_name' do
+  #   file_name = params[:file_name]
+  #   statement = db.prepare('SELECT * FROM image WHERE name = ?')
+  #   row = statement.execute(file_name).first
+  #   statement.close
+  #   ext = file_name.include?('.') ? File.extname(file_name) : ''
+  #   mime = ext2mime(ext)
+  #   if !row.nil? && !mime.empty?
+  #     content_type mime
+  #     return row['data']
+  #   end
+  #   404
+  # end
 
   private