When we launched the Checkly CLI and Test Sessions last May, I wrote about the three pillars of monitoring as code. Code — write your monitoring checks as code and store them in version control. Test — test your checks against our global infrastructure and record test sessions. Deploy — deploy your checks from your local machine or CI to run them as monitors.

With Infrastructure as Code and service-oriented development, a modern web app can consist of countless moving parts developed by multiple development and DevOps teams. When establishing a high-velocity development environment, the main question is, "How can you guarantee a stellar end-user experience when lots of engineers are constantly pushing and deploying code?" Solid, easy-to-write, and clearly defined monitoring practices are the only answer to this question.