In my Maven Spring Boot web app project, with a React front-end. This results in the following source directory structure:

The react app is in the client folder.
Up until now I was deploying this as a self-executing jar file (embedded Tomcat) inside a Docker container, and working fine. Now I want to package a deployable war file.

I changed

<packaging>jar</packaging>

to

<packaging>war</packaging>

I have the following Build Plugins:

<plugins>
        <plugin>
            <artifactId>maven-compiler-plugin</artifactId>
                   <version>3.10.1</version>
        </plugin>
        <plugin>
            <artifactId>maven-war-plugin</artifactId>
            <version>3.3.2</version>
        </plugin>

    </plugins>

But apparently this isn’t all that’s needed to get a packaged war that can be deployed into Tomcat’s webapps dir.

The resulting war has no files (html, css, js) at the root level – they are all
in WEB-INF/classes/static and WEB-INF/classes/templates

The folder /WEB-INF/classes/static/client contains my React project – including all the source files.

What other steps are needed to create a deployable war?