How to build war file in spring boot application using maven

we specify following activity

<packaging>war</packaging>

<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>



<build>

<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
                        <!-- this will get rid of version info from war file name -->
                    <finalName>masterservice</finalName>
                </configuration>
</plugin>
</plugins>
</build>




And we add in spring boot main class

 extends SpringBootServletInitializer


protected SpringApplicationBuilder configure (SpringApplicationBuilder builder) {
return builder.sources(MasterServiceApplication.class);
}