WIP: Setup external service for Redis

[btylerburton]

User Story

In order to properly manage our queue and make it testable, datagov team wants to setup a Redis service using a Docker container.

Acceptance Criteria

[ACs should be clearly demoable/verifiable whenever possible. Try specifying them using BDD.]

• GIVEN a Redis queue system has been defined (WIP: Define Redis Queue System #4314)
  WHEN I use the Redis syntax to interact with the Redis client
  THEN I expect all responses to mirror production

Background

[Any helpful contextual notes or links to artifacts/evidence, if needed]

Security Considerations (required)

[Any security concerns that might be implicated in the change. "None" is OK, just be explicit here!]

Sketch

• Review Docker docs for Redis https://hub.docker.com/_/redis
• Configure Docker Compose with Redis Service
  • Expose port for local testing
  • Implement persistent storage, if necessary

[btylerburton]

Completed in GSA/datagov-harvester#3