sample-app/services.xml

<?xml version="1.0" encoding="UTF-8"?>
<services version="1.0">

    <container id="query" version="1.0">
        <document-api/>
        <search />
        <nodes>
            <node hostalias="node1" />
        </nodes>
    </container>

    <content id="content" version="1.0">
        <redundancy>1</redundancy>
        <documents>
            <document mode="index" type="msmarco" />
        </documents>
        <nodes>
            <node hostalias="node1" distribution-key="0" />
        </nodes>
    </content>

</services>