cilium
Cilium is an open source project providing robust eBPF-based network, observability, and security features. It enables native routing, overlay networking, and efficient load balancing through a flat Layer 3 network. The tool further enhances bandwidth management and secures L3-L7 protocols with an identity-based security model, suitable for service-to-service communications. Leveraging Prometheus metrics and the Hubble observability platform, Cilium offers comprehensive monitoring capabilities. Built on the latest Linux kernel technologies, it's ideal for scalable and agile distributed applications.