Using Environment Variables in Azure DevOps Pipelines

Of course the dependency might not be so explicit. You could have a test that calls into code, that calls some other code, and the other code needs an environment variable. Or, maybe you have a script or tool that needs an environment variable. The question is - how do you setup environment variables in a DevOps pipeline? The answer is easy - when a pipeline executes, Azure will place all pipeline variables into environment variables, so any tools, scripts, tasks, or processes you run as part of the build can access parameters through the environment