greeting-rules/src/main/resources/META-INF/kmodule.xml

<?xml version="1.0" encoding="UTF-8"?>
<kmodule xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
            xmlns="http://jboss.org/kie/6.0.0/kmodule">

    <kbase name="foo" packages="com.redhat.training" default="true">
        <ksession name="bar" default="true"/>
    </kbase>
</kmodule>