Best practices suggestions

Hey, I just read the article on medium. Thanks!

Based on the best practices guide, I have a few suggestions:

I am not sure if azure has a way to pass flags to the docker command. So it would be better to integrate the lightweight init system tini into the Dockerfile itself. Relevant docs section - Handling kernel signals
The base image used is mhart/alpine-node which does not immediately convey the exact node version being used. Additionally, why not use node official image? There's one for alpine as well.
By default, docker is run with a privileged root user. This isn't recommended as it is a security concern. The official node docker images provide a non-root user that you can use to run the actual process.
The express recommendations for performance, among other things, recommends setting the NODE_ENV environment variable to 'production'. This is mentioned in the best practices guide as well.

I am by no means an expert on the subject but I collated some notes while I was trying to setup Docker for something at my workplace. Maybe you will find it useful - https://github.com/sudo-suhas/docker_notes/blob/master/11-docker-for-node-js.md#dockerfile.

burkeholland / express-react-starter