Creating a foreman role for Rubber

To create a new role in Rubber you need to add a rubber-#{role}.yml and deploy-#{role}.rb file.

In my case I needed to migrate my procfile to get Delayed Jobs executed by Foreman on EC2 (previously hosted on Heroku).

Checkout the code below:

deploy-foreman.rb

namespace :rubber do
    namespace :foreman do
        desc "Export the Procfile to Ubuntu's upstart scripts"
        task :export, roles: :foreman do
            run "cd #{current_path} && bundle exec foreman export upstart /etc/init -f ./Procfile -a foreman -u #{user} -l #{shared_path}/log"
        end

        desc "Start the application services"
        task :start, roles: :foreman do
            sudo "service foreman start"
        end

        desc "Stop the application services"
        task :stop, roles: :foreman do
            sudo "service foreman stop"
        end

        desc "Restart the application services"
        task :restart, roles: :foreman do
            run "service foreman start || service foreman restart"
        end
    end
end

# Export foreman scripts
after "deploy:update", "rubber:foreman:export"

# Restart application scripts
before "deploy:restart", "rubber:foreman:restart"

# Restart application scripts
after "deploy:stop", "rubber:foreman:stop"

Optionally you could pass a -c parameter to the bundle exec command to run a specific foreman process and the number of instances to start.

-c worker=1

rubber-foreman.yml

gems: [foreman]