From 7d0ec023263d6fded1d6b7932fddcdb32aab830f Mon Sep 17 00:00:00 2001
From: Jason Robinson <jasonr@matrix.org>
Date: Wed, 20 Apr 2022 16:44:05 +0300
Subject: Set # syntax=docker/dockerfile:experimental

For buildkit in some environments.

Signed-off-by: Jason Robinson <jasonr@matrix.org>
---
 docker/Dockerfile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/docker/Dockerfile b/docker/Dockerfile
index 6f87702cc8..575f9be861 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -1,3 +1,4 @@
+# syntax=docker/dockerfile:experimental
 # Dockerfile to build the matrixdotorg/synapse docker images.
 #
 # Note that it uses features which are only available in BuildKit - see
-- 
cgit 1.4.1