Observability and CI/CD are must-haves in cloud native environments. At their core, both are about enabling humans and machines to understand their code and workloads more deeply. Reliability testing should be part of CI/CD feeding into your observability stack, but until recently, there were mainly paid download or SaaS solutions on the market.The Grafana k6 reliability testing tool allows you to load test your applications, validate your API contracts, and perform end-to-end browser tests. With k6-operator, you can now run distributed tests within your Kubernetes cluster.We will walk through how to set up a k6-operator, configure your tests using JavaScript, and visualize the results in Grafana alongside your real-world production data.