title: Adding user permission denied in IBM MQ Docker
body: <p>As stated in <a href="https://github.com/ibm-messaging/mq-docker/blob/master/README.md" rel="nofollow noreferrer">https://github.com/ibm-messaging/mq-docker/blob/master/README.md</a> when I add a user I get permission denied [ useradd: Permission denied.
  useradd: cannot lock /etc/group; try again later.]</p>
  <p>It seems I can only add the user as root.
  I switched as root user [ by providing &quot;-u 0&quot; ] while executing the docker container and tried. It is also not possible in that way.</p>
  <p>Any idea to add an user inside mqm group of IBM MQ Docker container?</p>
  <pre><code>useradd user101 -G mqm &amp;&amp; \
  echo user101:passw0rd | chpasswd
  </code></pre>