build-multiarch.sh

#!/bin/bash
set -e
set -x

for arch in $ARCHS; do
    docker pull $NAME:$VERSION-${arch}

    if [[ $TAG_LATEST != 'true' ]]; then 
        docker manifest create --amend $NAME:$VERSION $NAME:$VERSION-${arch}
        docker manifest annotate $NAME:$VERSION $NAME:$VERSION-${arch} --arch ${arch}
    else
        docker manifest create --amend $NAME:latest $NAME:$VERSION-${arch}
        docker manifest annotate $NAME:latest $NAME:$VERSION-${arch} --arch ${arch}
    fi
done

echo "Push manifests"
if [[ $TAG_LATEST != 'true' ]]; then 
    docker manifest push $NAME:$VERSION
else
    docker manifest push $NAME:latest
fi