#!/bin/bash

TMP=$(mktemp -d)

cd $TMP
echo "#!/bin/sh">helloworld
echo "echo 'hello world'">>helloworld
chmod +x helloworld
echo "FROM alpine">Dockerfile
echo "COPY . /assets">>Dockerfile
echo 'CMD ["/bin/sh", "/assets/helloworld"]' >>Dockerfile
docker build -t helloworld .
docker run -t helloworld