docker-push-with-multi-arch.sh

#!/bin/bash
image_name=$1
arch_list=("amd64" "arm64")

for arch in ${arch_list[@]}
do
    echo "# build manifest for ${arch}"
    img_of_cur_arch=${image_name}-${arch}

    # check image
    set +e
    docker inspect ${img_of_cur_arch} 2>&1 > /dev/null
    if [ $? -ne 0 ]; then
        echo "[Warning] No ${arch} image found on local , image name is ${img_of_cur_arch}. aborting  image manifest merge"
        exit 2
    fi 
    set -e
    
    # push image
    echo "[1/3] push image ${img_of_cur_arch}  to hub.."
    docker push ${img_of_cur_arch}; 
    
    # creste manifest
    echo "[2/3] add local newly build ${arch} image into manifest .."
    docker manifest create --insecure --amend ${image_name}  ${img_of_cur_arch} ;

    # annotate manifest
    echo "[3/3] add annotation image into manifest .."
    docker manifest annotate ${image_name} ${img_of_cur_arch} --os linux --arch ${arch}
done

# push manifest
echo "[Info] pushing manifests .."
docker manifest push --insecure --purge   ${image_name} ;
echo "done"