👀 Views: 556 💬 Answers: 1 📅 Created: 2025-06-09

ruby rails action-cable redis Ruby

I'm collaborating on a project where I'm trying to configure I'm having a difficult time getting Action Cable to work with Redis for real-time features in my Rails 7 application. I've followed the setup guide but keep working with the behavior `Redis::CannotConnectError: Unable to connect to Redis on localhost:6379` when trying to establish a subscription. My `cable.yml` file is configured as follows: ```yaml development: adapter: redis url: redis://localhost:6379/1 channel_prefix: my_app_development ``` I've confirmed that my Redis server is running on my local machine, and I can connect to it via the Redis CLI. I've also tried using `redis://127.0.0.1:6379/1` in the `cable.yml` file, but the question continues. To troubleshoot, I added some logging to my initializer: ```ruby # config/initializers/cable.rb Rails.application.config.action_cable.url = 'ws://localhost:3000/cable' Rails.application.config.action_cable.allowed_request_origins = ['http://localhost:3000'] ``` I also verified that the Redis gem is included in my Gemfile: ```ruby gem 'redis', '~> 4.0' ``` After running `bundle install`, the gem is available, but I'm still working with the same connection behavior. Is there something I'm missing or a specific configuration that I need to check for using Action Cable with Redis in Rails 7? Any help would be greatly appreciated! I'm working with Ruby in a Docker container on CentOS. What would be the recommended way to handle this?