ARCH=linux/arm/v6
#ARCH=linux/amd64
TAG=develop
HELP="USAGE: sh build_docker.sh \n
[ -a | --architecture ] Select a architecture. Default is auto\n
[ -t | --tag ] Set a docker tag. Default is develop \n
[ -h | --help ] Get this dialog"

docker_build(){
  docker build --build-arg TARGETPLATFORM=$ARCH --platform $ARCH --tag dasmoorhuhn/atc-mithermometer-gateway:$TAG .
}

while [ "$1" != "" ]; do
  case $1 in
    -a | --architecture )
      shift
      ARCH=$1
      shift
      ;;
    -t | --tag )
      shift
      TAG=$1
      shift
      ;;
    -h | --help )
      echo $HELP
      exit
      ;;
    * )
      echo $HELP
      exit 1
  esac
done

docker_build