Suggestions to improve bootstrapping for Docker ecosystem

[rhnvrm]

• [ ] Switch to Entrypoint instead of CMD in Dockerfile

Having an Entrypoint allows one to not need to rewrite the name of the binary and directly provide the flags and get started.

• [ ] Add a docker-compose.yml

A docker-compose file can help users get started much faster.

• [ ] Ability to override config file via environment variables

This will allow us to use a .env file with docker-compose and also make it straightforward to store the password.