config/deploy.rb

old Deploy.rb

set :whenever_command, "bundle exec whenever"

set :assets_role, [:web, :shadow, :asset_syncer, :sidekiqer]

begin
  require 'capistrano_colors'
rescue LoadError
  puts "`gem install capistrano_colors` to get output more userfriendly."
end

 
set :rvm_type, :system
require "rvm/capistrano"


require 'capistrano/ext/multistage'
set :stages,        %w(production staging)
set :default_stage, "staging"

require 'bundler/capistrano'

require "whenever/capistrano"

set :application, "cool application name"
set :repository,  "your@git.location"
set :ssh_options, { :forward_agent => true }
set :scm, :git

set :deploy_via, :copy
set :git_shallow_clone, 1

set :scm_verbose, true
set :use_sudo, false
set :symlink_paths, ['config/database.yml', 'config/application.yml']


# from https://github.com/AF83/capistrano-af83/blob/master/lib/capistrano/af83/deploy/assets.rb
set :assets_dependencies, %w(app/assets lib/assets vendor/assets Gemfile.lock config/routes.rb)


namespace :deploy do

  desc "Restart passenger process"
  task :restart, :roles => [:web], :except => { :no_release => true } do

    run "touch #{current_path}/tmp/restart.txt"

  end

  task :symlink_files do
    symlink_paths.each do |path|
      run "ln -sf #{shared_path}/#{path} #{release_path}/#{path}"
    end
  end

  namespace :assets do
    task :sync, :roles => [:asset_syncer] do # you must set "shadow" server role
      run "cd #{latest_release} && #{rake} RAILS_ENV=#{rails_env} #{asset_env} assets:sync"
    end
  end

end

namespace :remote_rake do
  desc "Run a task on remote servers, ex: cap staging remote_rake:invoke task=cache:clear"
  task :invoke do
    run "cd #{deploy_to}/current; RAILS_ENV=#{rails_env} bundle exec rake #{ENV['task']}"
  end
end

# cap staging tail_log
task :tail_log, :roles => :app do
  run "tail -f -n 100 #{shared_path}/log/#{rails_env}.log"
end


after "deploy:finalize_update", "deploy:symlink_files"
after "deploy", "deploy:cleanup"
after "deploy:assets:precompile", "deploy:assets:sync"

set :sidekiq_cmd, "bundle exec sidekiq"
set :sidekiqctl_cmd, "bundle exec sidekiqctl"
set :sidekiq_role, :sidekiqer

require 'sidekiq/capistrano'