plugin.xml

<build> 
  <plugins>
    <plugin>
      <groupId>org.wildfly.plugins</groupId>
      <artifactId>wildfly-maven-plugin</artifactId>
      <version>1.2.0.Final</version>
      <configuration>
        <domain>
          <server-groups>
            <server-group>${wildfly.domain.serverGroup}</server-group>
          </server-groups>
        </domain>
      </configuration>
    </plugin>
  </plugins>
</build>