Whenever and Rbenv

rbenv_schedule.rb

# As cron runs with a restricted environment, we need to provide it with the correct path for our ruby
# Define the following jobs:

job_type :rbenv_rake, %Q{export PATH=/usr/local/rbenv/shims:/usr/local/rbenv/bin:$PATH; eval "$(rbenv init -)"; \
                         cd :path && RAILS_ENV=:environment bundle exec rake :task --silent :output }

job_type :rbenv_runner, %Q{export PATH=/usr/local/rbenv/shims:/usr/local/rbenv/bin:$PATH; eval "$(rbenv init -)"; \
                         cd :path && bundle exec rails runner -e :environment ':task' :output }

# And then use them in your schedule

every :day, at: '2am' do
  rbenv_rake 'report:generate'
end