build.sh

#!/bin/bash

set -e

if [ $1 == "--push" ]; then
    WILL_PUSH=1
else
    WILL_PUSH=0
fi

docker buildx build \
      --platform linux/amd64,linux/arm64 \
      -t docker/getting-started:latest \
      $( (( $WILL_PUSH == 1 )) && printf %s '--push' ) .