Script for multiarch image.

build_multiarch.sh

@@ -0,0 +1,30 @@
+#!/usr/bin/env bash
+
+# This script builds arm64 toolbox image, pushes it to packages and create version manifest with
+# both amd64 and arm64 images.
+# This script is launched on my local machine (which is macbook with M2 Pro CPU) and uses
+# lima with arm64 version of Docker.
+
+IMAGE_NAME="code.pztrn.name/containers/go-toolbox"
+VERSION=$1
+
+if [ "${VERSION}" == "" ]; then
+    echo "! No version specified as first argument!"
+    exit 1
+fi
+
+echo "* Building multiarch image with amd64 and arm64 images for version '${VERSION}'..."
+echo "* Pulling ${IMAGE_NAME}:${VERSION} (amd64)..."
+docker pull "${IMAGE_NAME}:${VERSION}"
+echo "* Retagging pulled image as ${IMAGE_NAME}:${VERSION}-amd64..."
+docker image tag "${IMAGE_NAME}:${VERSION}" "${IMAGE_NAME}:${VERSION}-amd64"
+echo "* Pushing ${IMAGE_NAME}:${VERSION}-amd64..."
+docker push "${IMAGE_NAME}:${VERSION}-amd64"
+echo "* Building arm64 version..."
+docker build -t "${IMAGE_NAME}:${VERSION}-arm64" .
+echo "* Pushing arm64 image..."
+docker push "${IMAGE_NAME}:${VERSION}-arm64"
+echo "* Creating multiarch manifest..."
+docker manifest create "${IMAGE_NAME}:${VERSION}" "${IMAGE_NAME}:${VERSION}-amd64" "${IMAGE_NAME}:${VERSION}-arm64"
+echo "* Pushing multiarch manifest as ${IMAGE_NAME}:${VERSION}..."
+docker manifest push "${IMAGE_NAME}:${VERSION}"