Add docker build files

[avantgardnerio]

Is your feature request related to a problem or challenge? Please describe what you are trying to do.

When I clone this project, I would expect to run

find . -name *.Dockerfile

And see the appropriate Dockerfiles. Currently if I try this, I see no results.

Describe the solution you'd like

Add Dockerfiles for building the scheduler and executor, add a docker-compose file so that users can build them with a single command. This file also serves as documentation on the necessary ports and things to expose in kubernetes or helm.

Describe alternatives you've considered

• Not having Dockerfiles
• Putting the same info in readmes and having the users transcribe it manually