release/settings.xml

<?xml version="1.0"?>
<settings xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.1.0 http://maven.apache.org/xsd/settings-1.1.0.xsd"
          xmlns="http://maven.apache.org/SETTINGS/1.1.0"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">

    <servers>
        <!-- Required for uploads to Apache's Nexus instance. These are LDAP credentials - the same credentials you
           - would use to log in to Git and Jenkins (but not JIRA) -->
        <server>
            <id>apache.snapshots.https</id>
            <username>xxx</username>
            <password>xxx</password>
        </server>
        <server>
            <id>apache.releases.https</id>
            <username>xxx</username>
            <password>xxx</password>
        </server>
    </servers>

    <profiles>
        <profile>
            <id>gpg</id>
            <properties>
                <gpg.executable>gpg2</gpg.executable>
                <gpg.useAgent>true</gpg.useAgent>
                <useAgent>true</useAgent>
                <gpg.useagent>true</gpg.useagent>
            </properties>
        </profile>
    </profiles>
    <activeProfiles>
        <activeProfile>gpg</activeProfile>
    </activeProfiles>
</settings>