split redis for sidekiq and and caching

config/environments/development.rb

@@ -20,7 +20,7 @@ Rails.application.configure do
     config.action_controller.perform_caching = true
     config.action_controller.enable_fragment_cache_logging = true
 
-    config.cache_store = :memory_store
+    config.cache_store = :redis_cache_store, { url: ENV['REDIS_URL'] }
     config.public_file_server.headers = {
       'Cache-Control' => "public, max-age=#{2.days.to_i}"
     }

config/environments/production.rb

@@ -56,7 +56,7 @@ Rails.application.configure do
   config.log_tags = [ :request_id ]
 
   # Use a different cache store in production.
-  config.cache_store = :redis_cache_store, { url: ENV['REDIS_URL'] }
+  config.cache_store = :redis_cache_store, { url: ENV['HEROKU_REDIS_PURPLE_TLS_URL'] }
 
   # Use a real queuing backend for Active Job (and separate queues per environment).
   # config.active_job.queue_adapter     = :resque