<?xml version="1.0"?>
<instances>
        ...
        <instance id="example" ... >
                ...
                <users>
                        <user user="user1" password="password1"/>
                        <user user="user2" password="password2"/>
                        <user user="user2" password="password2"/>
                </users>
                ...
        </instance>
        ...
</instances>