global: disable etag validation in nginx

Signed-off-by: Parth Shandilya <parth.shandilya@cern.ch>

docker/nginxdev/default.conf

@@ -33,6 +33,17 @@ server {
   return 301 https://$host$request_uri;
 }
 
+# Map for headers to avoid caching
+map "$request_method:$uri" $none_match {
+  "~*^GET:/api/records"    "";
+  default                  "-";
+}
+
+map "$request_method:$uri" $modified_since {
+  "~*^GET:/api/records"    "";
+  default                  "-";
+}
+
 # HTTPS server
 server {
   listen 443 ssl; # IPv4
@@ -87,6 +98,23 @@ server {
 
     proxy_pass http://nodeweb;
   }
+
+  location /api/records {
+    # Gets the headers from the map for GET requests
+    proxy_set_header If-None-Match $none_match;
+    proxy_set_header If-Modified-Since $modified_since;
+
+    rewrite  ^/api/(.*) /$1 break;
+    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 $scheme;
+    proxy_pass  http://api_server;
+
+    # Max upload size (except for files) is set to 100mb as default.
+    client_max_body_size 100m;
+  }
+
   location /api {
     rewrite  ^/api/(.*) /$1 break ;
     proxy_set_header Host $http_host;