Use docker-compose

[lvh]

While desdemona is backed by Onyx, it necessarily has other requirements, including e.g. Kafka for ingestion. This is unlikely to be the last requirement. Once #2 is resolved, it would also be great to have e.g. a [mimic][mimic] running mimicking Rackspace Cloud Files. Finally, with Carina, it would be great if we can set up realistic demo/CI environments on some pretty big iron.

docker-compose gives us docker-quality repeatable environments that are easy to set up, and hopefully still enables production-grade setups.

As a side-effect of resolving this, we should consider having exactly 1 way to run things in development, mimicking the new features in onyx-template where possible. This means that docker-compose up should be the way you set up a development cluster, and setting up a production cluster should look as similar to that as possible.

[lvh]

This is being done by @sirsean's work in #21.

[sirsean]

This is done in: #21