https://anishbista.org/tags/cilium/Recent content in Cilium on Anish BistaHugoen-usWed, 22 Jan 2025 00:00:00 +0000https://anishbista.org/blog/ebpf-based-network-observability-using-cilium-hubble/Wed, 22 Jan 2025 00:00:00 +0000https://anishbista.org/blog/ebpf-based-network-observability-using-cilium-hubble/<p><a href="https://ebpf.io/">eBPF (Extended Berkeley Packet Filter)</a> is a revolutionary Linux kernel technology that allows safe, efficient, and dynamic execution of custom programs directly within the kernel. By leveraging eBPF, modern observability tools can monitor and analyze system behavior without the overhead or risks associated with traditional instrumentation methods.</p> <h2 id="why-ebpf">Why eBPF?<a class="heading-anchor" href="#why-ebpf" aria-label="Link to this section">#</a></h2> <ul> <li><strong>Low Overhead</strong>: eBPF runs directly in the kernel, minimizing the performance impact on the system while providing high-fidelity insights.</li> <li><strong>Dynamic Instrumentation</strong>: Modify monitoring and tracing logic without rebooting or recompiling the kernel.</li> <li><strong>Deep Visibility</strong>: Monitor system calls, network traffic, and process behavior in real time.</li> </ul> <p>This technology has become the cornerstone of cloud-native observability and security, offering unparalleled insights into workloads and infrastructure. <strong>Cilium Hubble</strong> builds upon eBPF to deliver an exceptional observability solution tailored for Kubernetes environments.</p>