docker-run.sh - run command in docker just based on Dockerfile (no need for naming image etc - script uses hash of generated image)

docker-run.sh

#!/bin/bash
# https://gist.github.com/gwpl/badde4515f383665da640a2c6f98ff7a
#
# In directory with Dockerfile , you just use :
# $ docker-run.sh command...
# to run command inside dockerfile. Image hash etc will be automatically identified.


if [ -z "$0" ]; then
cat <<E
Run command in docker just based on Dockerfile (no need for naming image etc - script uses hash of generated image)

This script runs provided command with bash shell in container build with Dockerfile in current directory.
This is convenient to just run commmand inside, e.g. ls, or any other, without tagging, naming container.
Script just gets resulting hash (last past of 'docker build .' output) of build and uses it to identify image.
E
exit 0
fi

#set -x
# get image hash (or tag it if you prefer)
image_hash="$(docker build .|tail -n 1|awk '{print $NF}')"
# and run lints:
docker run $image_hash bash -c "${*}"