title: Install mysql client in docker image
body: <p>I am trying to build a docker image for php, which can handle database dumping in my mysql container. The problem is that it seems to install the mariadb version instead of the mysql version of the client. This gives me an error <code>mysqldump: unknown variable 'set-gtid-purged=OFF'</code></p>
  <p>The script that does the dumping is not one I can change, as it is part of the laravel core. It detects the server sql version to see if it should add that command or not. So I really need to have the right client version on my php image/container.</p>
  <p>This is my Dockerfile</p>
  <pre><code>FROM library/php:7.4-fpm
  
  RUN apt-get update \
      &amp;&amp; apt-get install -y default-mysql-client
  </code></pre>