This is strictly practice and may be deprecated immediately.
https://medium.com/rubyinside/action-cable-hello-world-with-rails-5-1-efc475b0208b
Running
Cloud9 workspaces come with redis pre-installed.
Start the server:
sudo service redis-server start
Connect with the client:
redis-cli
You can then connect to the database with following parameters:
Option Value Comment
Hostname $IP The same local IP as the application you run on Cloud9
Port 6379 The default Redis port number
Password `` No password since you can only access the DB from within the workspace