This node-js app has two processes, a web and a worker. These are defined in the Procfile.
The web process prints a message based on the path you give it:
curl <multi-process-app>/bananas
Hi, I love bananas!
The worker process calculates the Fibonacci sequence and logs it to stdout.
This repository includes a manifest.yml that will scale the web process to 1 instance
and the worker process to 2 instances.
In the logs for the app, you will see messages from both processes interleaved, i.e.:
... [APP/PROC/WORKER/0] OUT Calculating the Fibonacci sequence...
... [APP/PROC/WORKER/0] OUT 1
... [APP/PROC/WEB/0] OUT Server running at http://0.0.0.0:8080/
... [APP/PROC/WORKER/0] OUT 1
... [APP/PROC/WORKER/0] OUT 2
... [APP/PROC/WORKER/0] OUT 3