kafka-ui/settings.xml

<settings>
  <servers>
    <server>
     <id>ossrh</id>
     <username>${server.username}</username>
     <password>${server.password}</password>
    </server>
  </servers>
  <profiles>
    <profile>
      <id>ossrh</id>
      <activation>
        <activeByDefault>true</activeByDefault>
      </activation>
    </profile>
  </profiles>
</settings>