With the WebRole element you define your web application. The only requirement is the ability to run the application on IIS 7 or higher.
Typical examples for this are applications based on ASP.NET (ASP.NET, ASP.NET MVC, and so on), PHP, Windows Communication Foundation, or FastCGI.
A template of a WebRole element looks as follows:
<ServiceDefinition ...> <WebRole name="<web-role-name>" vmsize="<web-role-size>" enableNativeCodeExecution="[true | false]"> <Certificates> <Certificate name="<certificate-name>" storeLocation=" <certificate-store>" storeName="<store-name>" /> </Certificates> <ConfigurationSettings> <Setting name="<setting-name>" /> </ConfigurationSettings> <Imports> <Import moduleName="<import-module>"/> </Imports> <Endpoints> ...
