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authorJason Robinson <jasonr@element.io>2022-04-26 17:31:52 +0300
committerGitHub <noreply@github.com>2022-04-26 15:31:52 +0100
commit706456de1f63a4b9796592fd452da7ce30735274 (patch)
treebc4d0ae18e95f5c0756945cc9e8b8f6d7e0c673c /docker
parentbuild debian package for jammy jellyfish (#12543) (diff)
downloadsynapse-706456de1f63a4b9796592fd452da7ce30735274.tar.xz
Mark Dockerfile as requiring BuildKit (#12541)
Co-authored-by: David Robertson <davidr@element.io>
Diffstat (limited to 'docker')
-rw-r--r--docker/Dockerfile1
1 files changed, 1 insertions, 0 deletions
diff --git a/docker/Dockerfile b/docker/Dockerfile
index 4523c60645..ccc6a9f778 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -1,3 +1,4 @@
+# syntax=docker/dockerfile:1
 # Dockerfile to build the matrixdotorg/synapse docker images.
 #
 # Note that it uses features which are only available in BuildKit - see