Send HipChat message if there are multiple Sidekiq processes running

gistfile1.rb

namespace :sidekiq do
  detect_duplicate_processes = ->(context, server) do
    number_of_sidekiq_processes = context.capture('ps aux | grep "[s]idekiq" | wc -l').to_i

    rails_env = context.fetch(:rails_env, nil)

    hipchat_token = context.fetch(:hipchat_token, nil)
    hipchat_room_name = context.fetch(:hipchat_room_name, nil)
    client = HipChat::Client.new(hipchat_token, {})

    is = number_of_sidekiq_processes == 1 ? 'is' : 'are'
    process = number_of_sidekiq_processes == 1 ? 'process' : 'processes'

    client[hipchat_room_name].send(
      'Deploy',
      "#{rails_env}-#{server}: there #{is} #{number_of_sidekiq_processes} Sidekiq #{process} running.",
      notify: true
    )
  end

  task :detect_duplicate_processes_1, roles: :app_1 do
    detect_duplicate_processes.(self, 'app01')
  end

  task :detect_duplicate_processes_2, roles: :app_2 do
    detect_duplicate_processes.(self, 'app02')
  end

  task :detect_duplicate_processes do; end
end

after  'deploy:update',                      'sidekiq:detect_duplicate_processes'
after  'sidekiq:detect_duplicate_processes', 'sidekiq:detect_duplicate_processes_1'
after  'sidekiq:detect_duplicate_processes', 'sidekiq:detect_duplicate_processes_2'