Foreman is a process management gem for ruby applications. It is used in combination with a Procfile for configuration instructions.
A typical Procfile looks something like this
[name] : [script to execute]
Example Rack application Procfile
web: bundle exec rackup config.ru -p $PORT
If you're working with multiple Rack apps and they do not all live in the same directory the above won't work. Instead, you will have to use a new bash shell for each separate app.
# Procfile app1: sh -c 'cd path/to/app1 && bundle exec rackup config.ru -p $PORT' app2: sh -c 'cd path/to/app2 && bundle exec rackup config.ru -p $PORT' app3: sh -c 'cd path/to/app3 && bundle exec rackup config.ru -p $PORT'
Now all you have to do is run
foreman startfrom the directory where the Procfile is located.