Explore how Ericsson enables end-to-end observability in 5G Telco Cloud Native Network Functions (CNFs) using open source technologies in this 24-minute conference talk. Discover the challenges of implementing monitoring, logging, tracing, and configuration management for cloud-native applications in Kubernetes environments. Learn about Ericsson's platform built using CNCF Landscape projects to address these challenges. Gain insights into the motivations, architecture, benefits, and obstacles of leveraging open source and cloud-native technologies for 5G networks. Understand the journey towards portability, complexity management, and performance optimization in multi-vendor telecom environments.