When you build Headwind MDM from the source code by the command
mvn install
The Swagger UI WAR file will appear in the directory swagger/ui/target/mdm-swagger-ui-0.1.0.war
To deploy this application, copy this file to the Tomcat webapps directory
cp swagger/ui/target/mdm-swagger-ui-0.1.0.war /var/lib/tomcat9/webapps/swagger-ui.war