[EPIC] Use Redis to add caching abilities to Pulp
Ticket moved to GitHub: "pulp/pulpcore/2002":https://github.com/pulp/pulpcore/issues/2002
Redis is already used by Pulp for its tasking system and can also be used to create a cache for Pulp. The cache would be used to store the responses for API and content requests to reduce the amount of database requests Pulp has to serve. The cache should be optionable and have easily tunable parameters for the user.