tomcat 9 default username and password

<?xml version='1.0' encoding='utf-8'?>
<tomcat-users xmlns="http://tomcat.apache.org/xml"
              xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
              xsi:schemaLocation="http://tomcat.apache.org/xml
                                  tomcat-users.xsd"
              version="1.0">

  <role rolename="manager-gui" />
  <user username="admin" password="admin" roles="manager-gui" />

</tomcat-users>