Ruby on Rails - Puma on_worker_boot connect with redis -

i'm trying connect redis on heroku using puma keep running error

read error: #<redis::cannotconnecterror: error connecting redis on 127.0.0.1:6379 (errno::econnrefused)>

i've searched stackoverflow none of answers seem fix issue.

my puma.rb config

workers integer(env['web_concurrency'] || 2) threads_count = integer(env['max_threads'] || 5) threads threads_count, threads_count  preload_app!  rackup      defaultrackup port        env['port']     || 3000 environment env['rack_env'] || 'development'  on_worker_boot   activerecord::base.establish_connection    redis.current.client.reconnect   $redis = redis.current end 

my redis.rb initializer

$redis = redis.new(:url => env["rediscloud_url"]) 

i checked env["rediscloud_url"] redis://rediscloud:blank@blank.eu-west-1-1.1.ec2.garantiadata.com:port

i can't figure out doing wrong, seems correct me

i had set config var heroku config:set redis_provider=rediscloud_url

puma.rb

workers integer(env['web_concurrency'] || 2) threads_count = integer(env['max_threads'] || 5) threads threads_count, threads_count  preload_app!  rackup      defaultrackup port        env['port']     || 3000 environment env['rack_env'] || 'development'  on_worker_boot   activerecord::base.establish_connection    if env["rediscloud_url"]     uri = uri.parse(env["rediscloud_url"])     redis.current = redis.new(host: uri.host, port: uri.port, password: uri.password)     $redis = redis.current   else     redis.current.quit   end end 

redis.rb

if env["rediscloud_url"]   uri = uri.parse(env["rediscloud_url"])   $redis = redis.new(host: uri.host, port: uri.port, password: uri.password) end