build: add syntax for local build

Due to the line `ARCH=${TARGETPLATFORM#linux/}`, we need to define the syntax to make docker build happy. Signed-off-by: Vicente Cheng <[email protected]> (cherry picked from commit 785f4dd) Conflicts: Dockerfile - keep the baseos on v1.3
harvester · Jun 19, 2024 · 699c872 · 699c872
1 parent 40108f6
commit 699c872
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/Dockerfile b/Dockerfile
@@ -1,3 +1,5 @@
+# syntax=docker/dockerfile:1.7.0
+
 FROM registry.opensuse.org/isv/rancher/harvester/os/v1.3/main/baseos:latest AS base
 
 ARG CACHEBUST