Run a docker command with environment variables populated via .env.
npm install env-docker.env FILE VIA docker-compose.yml WITH env_file. YOU THEN TYPE docker-compose up TO START YOUR APPLICATION.   
> Prepare a docker command with environment variables populated via .env.
$ npm install env-docker --save-dev
###### run
$ env-docker run -- --rm -ti $(basename $PWD)
This can be conveniently used via npm run-scripts as depicted below:
"scripts": {
"docker:build": "docker build -t $npm_package_name .",
"docker:run": "eval $(env-docker run -- -p 3000:3000 --rm -ti $npm_package_name) || true",
"predocker:run": "npm run docker:build",
},
To re-build and run, just type the following:
$ npm run docker:run