Hi, thanks for this tutorial. It's really clear and helpful.
I encountered an error when I tried to run the docker image
Node\docker_nodejs_app>docker run -it docker_nodejs_app
npm ERR! missing script: start
I googled and found that the package.json needs to add this to "scripts" section:
"start": "node app.js"
then rebuilding the docker image file and running it solves the error.