While working on https://issues.redhat.com/browse/THREESCALE-11061 I realized porta doesn't support the scenario described in the title.

It can be solved through a new environment variable.

Edit: I finally solved it by manually extracting the DB from the URL and sending it to Sidekiq. This way we don't need to update the operator.

How to test:

Configure the Redis server Sidekiq uses like this:

REDIS_URL=redis://redis-master/1
REDIS_SENTINEL_NAME=redis-master
REDIS_SENTINEL_HOSTS=redis://localhost:26379,redis://localhost:26380,redis://localhost:26381 

It should create the Sidekiq queues in the DB 1 instead of 0