Update Dockerfile syntax to 1.5 (#1259)

Prajyot-Parab · web-flow · commit 669ef4746873 · 2023-06-07T01:06:13.000-07:00
Signed-off-by: Prajyot-Parab &lt;prajyot.parab2@ibm.com&gt;
diff --git a/Dockerfile b/Dockerfile
@@ -1,4 +1,4 @@
-# syntax=docker/dockerfile:1.1-experimental
+# syntax=docker/dockerfile:1.5
 
 # Copyright 2021 The Kubernetes Authors.
 #
diff --git a/Makefile b/Makefile
@@ -402,7 +402,7 @@ docker-build: docker-pull-prerequisites ensure-buildx ## Build the docker image
 
 .PHONY: docker-pull-prerequisites
 docker-pull-prerequisites:
-	docker pull docker.io/docker/dockerfile:1.1-experimental
+	docker pull docker.io/docker/dockerfile:1.5
 	docker pull gcr.io/distroless/static:latest
 
 .PHONY: e2e-image
diff --git a/hack/boilerplate/boilerplate.Dockerfile.txt b/hack/boilerplate/boilerplate.Dockerfile.txt
@@ -1,4 +1,4 @@
-# syntax=docker/dockerfile:1.1-experimental
+# syntax=docker/dockerfile:1.5
 
 # Copyright YEAR The Kubernetes Authors.
 #
diff --git a/hack/ccm/Dockerfile b/hack/ccm/Dockerfile
@@ -1,4 +1,4 @@
-# syntax=docker/dockerfile:1.1-experimental
+# syntax=docker/dockerfile:1.5
 
 # Copyright 2022 The Kubernetes Authors.
 #

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-# syntax=docker/dockerfile:1.1-experimental`
	`1`	`+# syntax=docker/dockerfile:1.5`
`2`	`2`
`3`	`3`	`# Copyright 2021 The Kubernetes Authors.`
`4`	`4`	`#`