How do I run resque background tasks on my droplet using foreman, capistrano and nginx?

Question

I have not been able to find any documentation on how to run worker tasks in the background for something like Resque. There is an article for installing Redis on the droplet: https://www.digitalocean.com/community/tutorials/how-to-install-and-use-redis , and I have a Procfile using Foreman gem in which I have the background tasks, but I can’t figure how to run them on the droplet.

Andrew SB · Answer

The Resque wiki provide a sample cap task to manage Resque processes. namespace :foreman do desc "Start the application services" task :start, :roles => :app do sudo "start #{application}" end desc "Stop the application services" task :stop, :roles => :app do sudo "stop #{application}" end desc "Restart the application services" task :restart, :roles => :app do run "sudo start #{application} || sudo restart #{application}" end desc "Display logs for a certain process - arg example: PROCESS=web-1" task :logs, :roles => :app do run "cd #{current_path}/log && cat #{ENV["PROCESS"]}.log" end desc "Export the Procfile to upstart scripts" task :export, :roles => :app do # 5 resque workers, 1 resque scheduler run "cd #{release_path} && rvmsudo bundle exec foreman export upstart /etc/init -a #{application} -u #{user} -l #{shared_path}/log -f #{release_path}/Procfile.production -c worker=5,scheduler=1" end end It builds off this blog post on managing and monitoring a Ruby application with Foreman and Upstart. That should point you in the right direction.

admin754635 · Answer

Thanks for pointing me in the right direction. There were still a few issues that I faced in implementing this properly, so I thought I’d help others trying to implement this in their app. I assume that resque has already been implemented in the app locally. I followed these steps for implementing resque on my app hosted on digital ocean: Install Redis on the droplet using this helpful article :https://www.digitalocean.com/community/tutorials/how-to-install-and-use-redis Use foreman/upstart as suggested in the comment above to detail the tasks/servers that you want to run. The procfile is what will be used to run the processes. The following links are helpful for understanding:http://blog.daviddollar.org/2011/05/06/introducing-foreman.html http://railscasts.com/episodes/281-foreman This is what my Procfile looks like : worker: RAILS_ENV=production bundle exec rake resque:work QUEUE='*' scheduler: RAILS_ENV=production bundle exec rake resque:scheduler faye: bundle exec rackup private_pub.ru -s thin -E production Make changes in the resque configuration to run the resque server on the app’s production IP:in initializers/resque-web.rb Resque.redis = ENV['REDIS_URL'] Resque.after_fork = Proc.new { ActiveRecord::Base.establish_connection } The following capistrano tasks need to be created to run the servers/tasks mentioned in the Procfile :in config/deploy.rb task :export do on roles(:app) do execute [ "cd #{release_path} &&", 'export rvmsudo_secure_path=0 && ', "#{fetch(:rvm_path)}/bin/rvm #{fetch(:rvm_ruby_version)} do", 'rvmsudo', 'RAILS_ENV=production bundle exec foreman export --app appname --user username -l logfile-path -f ./Procfile upstart /etc/init -c worker=1,scheduler=1,faye=1' ].join(' ') end end task :restart do on roles(:app) do execute :sudo, "restart appname" end end after :publishing, :export after :publishing, :restart This should get the workers going.

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How do I run resque background tasks on my droplet using foreman, capistrano and nginx?

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How do I run resque background tasks on my droplet using foreman, capistrano and nginx?