Explore the critical role of observability in 5G networks through this conference talk. Gain insights into implementing telco-grade availability for complex microservices in 5G core virtual network functions (VNFs) using Kubernetes. Learn about the experiences of building a telco observability platform utilizing CNCF projects, including end-to-end 5G call tracing with Jaeger, network performance monitoring with Prometheus, and fault detection using AlertManager, Fluentd, and Kibana. Discover how these tools bring clarity to high-reliability applications in the 5G world, covering topics such as network architecture, network slicing, centralized logging, and debugging techniques.