title: Cannot start docker image of zabbix-server-mysql: Keep showing "MySQL server is not available. Waiting 5 seconds..."
body: <p>I cannot start docker image of zabbix-server-mysql.  It keeps showing &quot;MySQL server is not available. Waiting 5 seconds...&quot;</p>
  <p>Detail:</p>
  <pre><code>docker pull zabbix/zabbix-server-mysql:alpine-5.2-latest
  docker run --name zabbix-server -e DB_SERVER_HOST=&quot;xxxxx&quot; -e MYSQL_USER=&quot;xxxxx&quot; -e MYSQL_PASSWORD=&quot;xxxx&quot; -e MYSQL_DATABASE=&quot;zabbix&quot; -d zabbix/zabbix-server-mysql:alpine-5.2-latest
  docker logs -f zabbix-server
  </code></pre>
  <p>The logs keep showing</p>
  <pre><code>**** MySQL server is not available. Waiting 5 seconds...
  **** MySQL server is not available. Waiting 5 seconds...
  **** MySQL server is not available. Waiting 5 seconds...
  </code></pre>