AWS environment put into Docker image

[ChristinaB]

@keckje Let's put the conversation here and get a DOI for the Docker image. The code from Notebooks and scripts can live here for now.

Here is an example of how we have referenced the software environment file in the past:
Castronova, Anthony M. 2018. Dockerfile for the HydroShare-JupyterHub base image.
Retrieved October 29, 2018, from https://hub.docker.com/r/castrona/hydroshare-
jupyterhub/.

Example for where the HydroShare environment lives operationally:
https://hub.docker.com/r/cuahsi/jupyterhub

docker pull cuahsi/jupyterhub