title: problems with cron in nginx docker container
body: <p>From a base image of nginx, I installed certbot, successfully got the certs and website works fine over ssl, so now I want to put the renew script as a cron job, but it doesnt seem to be working, I just wanted to check it was working with echo Helloworld:</p>
  
  <pre><code>* * * * * echo "Hello world!" &gt;&gt; /root/cron2.log 2&gt;&amp;1
  </code></pre>
  
  <p>But nothing shows up in /root, also, there are no logs present in the usual dirs like /var/log/, and there is no file syslog except for /usr/include, and no rsyslog, </p>
  
  <p>What am I doing wrong with CRON? so that I can assess my dry-run renew script in a log so I know its working? </p>