From 64a9903f80c272e494fe11be513ef10ed4aa49c8 Mon Sep 17 00:00:00 2001
From: Ken Bingham <kenneth.bingham@netfoundry.io>
Date: Mon, 6 Feb 2023 09:58:53 -0500
Subject: [PATCH] use BuildKit to provide TARGETARCH at image build time

---
 docker-images/cross-build/README.md | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/docker-images/cross-build/README.md b/docker-images/cross-build/README.md
index 0a228bdb3..d8251d9f4 100644
--- a/docker-images/cross-build/README.md
+++ b/docker-images/cross-build/README.md
@@ -13,11 +13,12 @@ You only need to build the container image once unless you change the Dockerfile
 
 ```bash
 # build a container image named "zitibuilder" with the same version of Go that's declared in go.mod
-docker build \
+docker buildx build \
     --tag=zitibuilder \
     --build-arg uid=$UID \
     --build-arg gid=$GID \
     --build-arg golang_version=$(grep -Po '^go\s+\K\d+\.\d+(\.\d+)?$' go.mod) \
+    --load \
     ./docker-images/cross-build/
 ```