settings.xml
<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 http://maven.apache.org/xsd/settings-1.0.0.xsd">
<profiles>
<profile>
<id>ossrh</id>
<activation>
<activeByDefault>true</activeByDefault>
</activation>
<properties>
<gpg.executable>gpg</gpg.executable>
<gpg.keyname>${env.GPG_KEYNAME}</gpg.keyname>
</properties>
</profile>
</profiles>
<servers>
<server>
<id>ossrh</id>
<username>${env.OSSRH_USERNAME}</username>
<password>${env.OSSRH_PASSWORD}</password>
</server>
</servers>
</settings>