# Bundling multiple WAR files for Tomcat environments

If your web app comprises multiple web application components, you can simplify deployments and reduce operating costs by running components in a single environment, instead of running a separate environment for each component. This strategy is effective for lightweight applications that don't require a lot of resources, and for development and test environments.
To deploy multiple web applications to your environment, combine each component's web application archive (WAR) files into a single [source bundle](applications-sourcebundle.md).
To create an application source bundle that contains multiple WAR files, organize the WAR files using the following structure.
```
MyApplication.zip
├── .ebextensions
├── .platform
├── foo.war
├── bar.war
└── ROOT.war
```
When you deploy a source bundle containing multiple WAR files to an AWS Elastic Beanstalk environment, each application is accessible from a different path off of the root domain name. The preceding example includes three applications: `foo`, `bar`, and `ROOT`. `ROOT.war` is a special file name that tells Elastic Beanstalk to run that application at the root domain, so that the three applications are available at `http://MyApplication.elasticbeanstalk.com/foo`, `http://MyApplication.elasticbeanstalk.com/bar`, and `http://MyApplication.elasticbeanstalk.com`.
The source bundle can include WAR files, an optional `.ebextensions` folder, and an optional `.platform` folder. For details about these optional configuration folders, see [Extending Elastic Beanstalk Linux platforms](platforms-linux-extend.md).
**To launch an environment (console)**
1. Open the Elastic Beanstalk console with this preconfigured link: [console.aws.amazon.com/elasticbeanstalk/home\#/newApplication?applicationName=tutorials&environmentType=LoadBalanced](https://console.aws.amazon.com/elasticbeanstalk/home#/newApplication?applicationName=tutorials&environmentType=LoadBalanced)
1. For **Platform**, select the platform and platform branch that match the language used by your application, or the Docker platform for container-based applications.
1. For **Application code**, choose **Upload your code**.
1. Choose **Local file**, choose **Choose file**, and then open the source bundle.
1. Choose **Review and launch**.
1. Review the available settings, and then choose **Create app**.
For information about creating source bundles, see [Create an Elastic Beanstalk application source bundle](applications-sourcebundle.md).</div><div class="naked_ctrl">
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