title: Shouldn't apache specific cron-jobs run in docker image?
body: <p>In the <a href="https://docs.docker.com/engine/userguide/eng-image/dockerfile_best-practices/#/run-only-one-process-per-container" rel="nofollow">Best practices for running Docker</a> guide it's stated, that there should only run one process per docker container. In Ubuntu there are some cron-jobs related to the apache-httpd which run daily (located in the<code>/etc/cron.daily/apache2</code>).</p>
  
  <p>When using the apache-docker-image from the official repository (look <a href="https://hub.docker.com/_/httpd/" rel="nofollow">here</a>) those cronjobs are not run, only the httpd process is started, cron is not running.</p>
  
  <p>Shouldn't the cron-jobs stated above be executed?
  I have a hard time to figure out, how one can execute this cron-jobs from another docker-image, as suggested in the "Best-practices-guide" since the "cron-docker-image" should have access to the apache-process in order to run the cron-jobs correctly.</p>