update: nginx configure

nginx/kms.conf

@@ -1,7 +1,15 @@
 server {
     listen 1689;
     listen [::]:1689 ipv6only=on;
-    root /kms-server;
+    set $kms_dir '/kms-server';
+
+    location /assets {
+        root $kms_dir;
+    }
+
+    location = /json {
+        alias $kms_dir/assets/kms-keys.json;
+    }
 
     location / {
         set $query_param $query_string;
@@ -11,8 +19,6 @@ server {
         include fastcgi_params;
         fastcgi_pass 127.0.0.1:9000;
         fastcgi_param QUERY_STRING $query_param;
-        fastcgi_param SCRIPT_FILENAME /kms-server/src/Route.php;
+        fastcgi_param SCRIPT_FILENAME $kms_dir/src/Route.php;
     }
-
-    location /assets {}
 }