settings.xml

<?xml version="1.0" encoding="UTF-8" ?>
<settings xsi:schemaLocation='http://maven.apache.org/SETTINGS/1.0.0 http://maven.apache.org/xsd/settings-1.0.0.xsd'
          xmlns='http://maven.apache.org/SETTINGS/1.0.0' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance'>

    <servers>
        <server>
            <id>ossrh</id>
            <username>${env.USERNAME}</username>
            <password>${env.OSS_PASSWORD}</password>
        </server>
    </servers>

    <profiles>
        <profile>
            <id>ossrh</id>
            <activation>
                <activeByDefault>true</activeByDefault>
            </activation>
            <properties>
                <gpg.executable>gpg2</gpg.executable>
                <gpg.passphrase>${env.PASSPHRASE}</gpg.passphrase>
            </properties>
        </profile>
    </profiles>
</settings>