How can I clear rails cache after deploy to heroku?

Question

I applied cache to my heroku rails app and it works well. But everytime I deploy to heroku, I also want to clear cache automatically.

so I googled and I found this

Answer 1

You should be able to create a cache clearing rake task that looks something like this:

namespace :cache do
  desc "Clears Rails cache"
  task :clear => :environment do
    Rails.cache.clear
  end
end

and invoke it directly in one command that you can use in your post deploy hook - like so:

heroku run rake cache:clear