Rails 7.1: guide with ActionCable connection when using Redis and Rails.application.credentials
Hey everyone, I'm running into an issue that's driving me crazy. I'm experiencing an scenario with ActionCable where the connection is failing intermittently due to what seems like a question with Redis configuration, especially when I'm trying to access credentials stored in `Rails.application.credentials`. I'm using Rails 7.1 and Redis for my ActionCable setup. The behavior I see in the logs is: `Redis::ConnectionError: Connection timed out`. I've confirmed that my Redis server is running and accessible from other parts of my application. Here’s the relevant part of my `cable.yml`: ```yaml development: adapter: redis url: redis://localhost:6379/1 channel_prefix: my_app_development ``` I'm also using ActionCable with Devise for authentication, and I have the following in my `ApplicationCable::Connection` class: ```ruby class ApplicationCable::Connection < ActionCable::Connection::Base identified_by :current_user def connect self.current_user = find_verified_user end private def find_verified_user if (user_id = cookies.signed[:user_id]) && (current_user = User.find_by(id: user_id)) current_user else reject_unauthorized_connection end end end ``` I have tried ensuring that my Redis server is properly configured and even increased the timeout settings in the Redis configuration. Additionally, I've looked into the credentials, but when I try to run any commands that require accessing credentials, I get `Missing credentials: redis` from Rails. I updated my `config/credentials.yml.enc` to include Redis information like this: ```yaml redis: url: redis://localhost:6379/1 password: mysecretpassword ``` And in my `cable.yml`, I’ve attempted to access the Redis URL like so: ```yaml development: adapter: redis url: <%= Rails.application.credentials.dig(:redis, :url) %> password: <%= Rails.application.credentials.dig(:redis, :password) %> channel_prefix: my_app_development ``` However, this leads to the connection behavior mentioned earlier. I’ve also ensured that I have the `redis` gem included in my Gemfile: ```ruby gem 'redis', '~> 4.0' ``` What am I missing here? Any suggestions on how to resolve the connection scenario with ActionCable and Redis?