As quality engineers, we're ready to test applications in the staging environment. But what happens before code lands there? Understanding the development lifecycle—from commit to production—shapes our testing strategies. This understanding starts with unit testing in DevOps. Let's explore the tools and technologies—including AWS, Terraform, Docker, Ansible, Grafana, and Kibana—that drive this process. We'll also tackle the key question: what is the definition of a unit test from a DevOps perspective? Follow along to discover the behind-the-scenes magic of software development.