add Docker file

[dwhieb]

Add the Docker file to this repo. Start with the file from the Korp repo and edit as needed.

The Docker file should not edit the files inside of the Docker containers, just rebuild them.

[dwhieb]

#!/bin/bash

# This script is run by the deploy.altlab.dev webhook to update the deployed
# app.

set -eu
DIR="$(dirname -- "${0}")"

cd "${DIR}"

# Some day we might want to automatically pull the git repo that contains this
# deploy script, but for now changing the deploy process will require that
# to be done manually.
# git pull ...

make rebuild-frontend update-frontend-container

[dwhieb]

https://snyk.io/blog/10-best-practices-to-containerize-nodejs-web-applications-with-docker/