REVENG-149 Clear Redis variables set for running Sidekiq cron jobs

reveng-149-clear-sidekiq-vars.rb

# JIRA: REVENG-149
# Remove Sidekiq enterprise schedules so late payment notices do not get sent
#
# When Sidekiq enterprise creates a cron job, it sets the keys loop-UNIQUE-ID, loops-UNIQUE-ID
# This keys are not getting cleaned up from Redis when we remove the cron jobs from codebase
# and restart sidekiq and app servers.

require 'sidekiq/api'

begin
  # Get sidekiq loop keys from redis
  sidekiq_loop_keys = Sidekiq.redis { |conn| conn.keys }.select{ |key| key[/loop-|loops-/] }
  Rails.logger.info sidekiq_loop_keys

  # Pass the keys for deletion to sidekiq. del will return how many keys got deleted.
  result = Sidekiq.redis { |conn| conn.del(*sidekiq_loop_keys) }

  # We are expecting to delete 1 or more keys
  raise "No Redis keys got deleted" if result < 1
end

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