To get started, we will consider what tools and assets we need to commence building our first GAE example application.
For this section, we will be taking our source code and deploying it on GAE. As part of this process, we will explore the application structure and how this relates to the deployed system. While using the code, we will observe what information is available and displayed within Google's Cloud Console.
In addition to this, we will look at deploying the application (to discuss what is meant by the default version), how this relates to code, and deploying multiple versions. Finally, we will perform a rollback on the system code deployed to illustrate accomplishing this task and what it means in terms of available versions. But first, let's learn about the Qwiklabs environment that we will be using in this chapter.