How to: "warm up" an environment using PowerShell and TeamCity

#ci #cd #powershell #teamcity

Prior to running some tests on a .NET web application, we wanted to send a request to the environment to “warm it up” – so that the initial start of the application pool would be completed before the tests started running.

Solution

Select a URL that you can reasonably expect to hit as a smoke test
Create a TeamCity build configuration
Add a build step to the configuration of type “Powershell Script”
Select an in-line script
Add the following powershell:

Invoke-WebRequest -Uri http://theURLToHit -UseDefaultCredentials

Now the build step will hit the URI using the build agent’s credentials, and the command will return when the result does (with a 200 after the app pool has started up).

Happy deployments!

Hands-on debugging session: instrument, monitor, and fix

Join Lazar for a hands-on session where you’ll build it, break it, debug it, and fix it. You’ll set up Sentry, track errors, use Session Replay and Tracing, and leverage some good ol’ AI to find and fix issues fast.

RSVP here →