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Can I Use Rails Whenever a Stone Without Capistrano?

I have a Rails application that I hosted on Amazon Elastic Beanstalk. I want to use "Whenever a Gem" to plan tasks, but as the documentation "Whenever a Gem", so this Railscast mentions integration with Capistrano. I do not use Capistrano to manage my server, so I'm not sure if this will ruin my server, if I install it only for use Whenever.

Perhaps another way to ask my question is: what does this command include in the Capistrano deploy.rb file, and is there a replacement for this if I don't use Capistrano:

set :whenever_command, "bundle exec whenever" require "whenever/capistrano"
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I read this thread in the Google Group Gem , and I realized that you can use Whenever without Capistrano, but that means you need to start Crontab manually to change the Capistrano. To do this, use this command on your server:

whenever -i

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Based on the documentation no, you do not need to use Capistrano.

Whenever Capistrano does the following, which registers a pair of hooks to run all sorts of tasks during deployment

 Capistrano::Configuration.instance(:must_exist).load do # Write the new cron jobs near the end. before "deploy:finalize_update", "whenever:update_crontab" # If anything goes wrong, undo. after "deploy:rollback", "whenever:update_crontab" end
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