Configure Docker for local development

[uberswe]

I would like to make a local docker configuration so it's easier to get going with Beubo locally. I currently run it from my terminal behind caddy to get the local SSL certificate. Here are the requirements for docker:

• A Beubo instance configured with defaults and seeding. The following env variables should be set

ENVIRONMENT=local
SEED_DATABASE=true

• A MySQL instance with a database which Beubo is configured to work with
• Local SSL support, this could be done with Caddy but I am open to suggestions.