Generalize to providers other than DO

[mjuric]

Current implementation only has support for Digital Ocean. Extend it to support (at least):

• AWS
• Native Kubernetes (e.g., to easily run on minikube)

Also separate DNS from k8s provider (i.e., there's no reason those two must be managed by the same organization, as long as there's a CLI way to tweak the DNS entries when they need changing).

[stevenstetzler]

AWS integration is largely completed and seems to work (for me) in branch aws-dev at commit e7bf582 with the exception of removing extraneous echo statements. It would be a good test to have someone else launch a JupyterHub with their AWS credentials, @mjuric or @bsipocz.

[stevenstetzler]

A complete set of commands to run is:

./configure --provider=aws --username=Steven_Stetzler --hub-fqdn=test.dirac.institute [email protected]
cd test.dirac.institute
make all

where username is your AWS username.

[mjuric]

Awesome!! Let's set up @bsipocz's AWS creds at the DEng meeting today and try it out.

[mjuric]

@stevenstetzler Can you create a PR of your branch to master (so it's easier to see & comment on changes).