Web application
development/production parity
can be improved by defining process types in a manifest named
Procfile
such as this one for a Rails app:
web: bundle exec puma -p $PORT -C ./config/puma.rb
worker: bundle exec rake jobs:work
In production, Heroku’s Cedar stack reads process types from that file.
In development, Foreman manages output streams, responds to crashed processes, and handles user-initiated restarts and shutdowns.
Configure Foreman to always use the same port:
cd /path/to/myapp
echo 'port: 7000" > .foreman
Start Foreman processes:
foreman start
It will manage the Puma and
Delayed Job processes,
with the web process running on port 7000.
