This chapter focuses on achieving performance observability within Kubernetes environments. We explore the essential tools that help you maintain visibility in a Kubernetes environment. Whether monitoring with Prometheus, managing logs with Fluentd, or tracing microservices with Jaeger, each tool plays a crucial role in ensuring your applications run smoothly and efficiently. We'll walk you through the problems these tools solve, how to integrate them into your setup, and their benefits to your day-to-day operations. If you're working with Kubernetes, understanding these tools is key to staying on top of your infrastructure, ensuring that you can catch issues before they become problems, and keeping everything running at peak performance.