Resque in distroless docker container

resque.rb

# config/initializers/resque.rb
module Resque
  class Worker
    # Monkey patch linux_worker_pids because the original function tries to shell out.
    # Since we run distroless in production, there is no shell.
    # https://github.com/resque/resque/blob/7f6b88404dd18698f6f4023e18fdc1ae8318e5e5/lib/resque/worker.rb#L839
    def linux_worker_pids
      [Process.pid]
    end
  end
end