Creating a Scalable Global WebRTC Service Using Elixir and Kubernetes

The blog post provides a comprehensive overview of establishing a globally distributed WebRTC service, focusing on improved performance, high availability, and enhanced privacy for users across various regions. It explains the key components, including the use of Elixir WebRTC as a media server, STUNner as a TURN server, and Cilium Cluster Mesh for networking. The article specifically outlines the architecture of a sample application called Broadcaster, deployed across multiple Kubernetes clusters in different geographical locations. It elaborates on how these technologies work together to ensure low latency and high-quality streaming experiences for users connected to different clusters. The implementation also describes setting up geo-distributed Kubernetes clusters and the advantages of using the WHIP and WHEP protocols for WebRTC media management. Detailed testing of the streaming setup verifies the system's performance and synchronization across locations, showcasing significant improvements over traditional streaming methods.