How to get cron job working in heroku (production)

Question

So I have the following in my schedule.rb - I'm using the whenever gem

set :output, "#{path}/log/cron.log"
job_type :script, "'#{path}/script/:task' :output"

every :sunday, at: "3:00 AM" do
  runner "Event.clear_expired"
end

And I'd like to have this running in production on Heroku.

How might I set it up?

I've looked at a couple like scheduler etc.. but they seem really un-intuitive.. any guidance would be helpful!

Update :

task :weeklydelete do
  set :output, "#{path}/log/cron.log"
  job_type :script, "'#{path}/script/:task' :output"

  every :sunday, at: "3:00 AM" do
  runner "Event.clear_expired"
  end

end

Answer 1

You need the Heroku Scheduler addon, which is free, and then you can set your job up in there. You can't use whenever on Heroku.