local: &local
  url: redis://localhost:6379/1

development: *local
test: *local

production:
  url: <%= ENV['REDIS_CABLE_URL'] %>
  channel_prefix: docker_rails_production

local:
  url: redis://localhost:6379/1

test:
  url: <%= ENV['REDIS_CABLE_URL'] %>
  channel_prefix: docker_rails_test

production:
  url: <%= ENV['REDIS_CABLE_URL'] %>
  channel_prefix: docker_rails_production

Use Redis host from ENV
Tests: Use Redis host from ENV
