<?xml version="1.0"?>
<instances>
...
<instance id="example" ... >
...
<auths>
<auth module="userlist">
<user user="user1" password="password1"/>
<user user="user2" password="password2"/>
<user user="user3" password="password3"/>
</auth>
<auth module="sqlrelay" socket="/tmp/auth.socket" user="auth" password="auth"/>
<auth module="userlist">
<user user="user4" password="password4"/>
<user user="user5" password="password5"/>
</auth>
</auths>
...
</instance>
...
</instances>