Tag: #ebpf
Writing on GPUs, LLMs, MLOps, Kubernetes — and mindset · 33 posts
eBPF Complete Guide 2025: Kernel Programming Revolution for Observability, Networking, Security
Everything about eBPF! Safe Linux kernel programming, BCC vs libbpf vs bpftrace, Cilium (networking), Falco (security), Pixie (observability), Tetragon, CO-RE, real-world tracing, performance optimization, production cas
2026-04-14 · 11 min read #ebpf#kernel#observability#networking#security[Golden Kubestronaut] CCA Practice Exam 80 Questions - Cilium Certified Associate
80 practice questions for achieving Golden Kubestronaut via CCA. Covers all domains: eBPF, Cilium networking, security, service mesh, and Hubble observability.
2026-03-20 · 27 min read #kubernetes#golden-kubestronaut#cilium#ebpf#ccaCilium Network Policy Engine: L3/L4/L7 Filtering Implementation
Analysis of the Cilium network policy engine covering policy repository, Identity-based enforcement, L3/L4 eBPF enforcement, L7 Envoy proxy, FQDN policies, audit mode, and endpoint regeneration.
2026-03-20 · 9 min read #cilium#ebpf#networking#open-source-internalsCilium Hubble Observability Platform Internal Analysis
Internal analysis of the Cilium Hubble observability platform covering architecture, Relay, UI, L3/L4/L7 flows, Prometheus metrics, CLI, gRPC API, and performance tuning.
2026-03-20 · 9 min read #cilium#ebpf#networking#open-source-internalsCilium ClusterMesh: Multi-Cluster Networking Internal Implementation
Analysis of Cilium ClusterMesh internals covering etcd architecture, global services, cross-cluster policies, Identity synchronization, KVStoreMesh, and external workloads.
2026-03-20 · 7 min read #cilium#ebpf#networking#open-source-internalsCilium Architecture Internals: The Core of eBPF-Based Networking
Deep analysis of Cilium internals including the Cilium Agent, Operator, eBPF datapath, BPF maps, Identity allocation, and endpoint lifecycle.
2026-03-20 · 10 min read #cilium#ebpf#networking#open-source-internalsCilium eBPF Datapath Deep Dive: Packet Processing Pipeline
Deep analysis of the Cilium eBPF datapath covering packet flow, BPF program chaining, connection tracking, NAT engine, DSR mode, and socket-level load balancing.
2026-03-20 · 11 min read #cilium#ebpf#networking#open-source-internalsObservability 2026: eBPF and OpenTelemetry Revolutionizing Monitoring
The convergence of eBPF technology and OpenTelemetry standardization is fundamentally transforming observability in 2026. Zero-instrumentation tracing, AI-powered root cause analysis, and cost-optimized stacks have becom
2026-03-16 · 7 min read #ebpf#observability#opentelemetry#cilium#distributed-systemsCilium Service Mesh: Building and Operating Sidecarless Service Mesh with eBPF
A comprehensive guide covering Cilium Service Mesh sidecarless architecture based on eBPF, Envoy integration, mTLS configuration, L4/L7 traffic management, performance comparison with Istio, and production troubleshootin
2026-03-07 · 15 min read #kubernetes#cilium#service-mesh#ebpf#sidecarlesseBPF-Based Zero Instrumentation Kubernetes Observability: Cilium Hubble and Grafana Beyla Practical Guide
A practical operations guide for zero-code-change Kubernetes monitoring architecture using eBPF-based Cilium Hubble network observability and Grafana Beyla auto-instrumentation.
2026-03-06 · 21 min read #observability#ebpf#cilium#hubble#grafana-beylaeBPF-Based Kubernetes Observability Guide: From Cilium Hubble to Tetragon
Hands-on guide to eBPF-based Kubernetes observability tools. Covers network flow observation with Cilium Hubble, security event detection with Tetragon, and writing custom eBPF programs.
2026-03-03 · 7 min read #observability#ebpf#cilium#hubble#tetragonKubernetes Network Security with Cilium and eBPF: From L3/L4/L7 Policies to Encryption
Hands-on practice with Cilium CNI eBPF-based network policies. Going beyond the limitations of standard NetworkPolicy, we cover L7 HTTP/gRPC filtering, DNS-based policies, WireGuard encryption, and Hubble monitoring.
2026-03-03 · 9 min read #kubernetes#cilium#ebpf#network-policy#securityThe Great Shift in Kubernetes Networking: 5 Critical Changes Even Experts Easily Overlook
From IPVS deprecation and the nftables transition in Kubernetes v1.35, to Istio Ambient Mesh eliminating sidecars, Gateway API replacing Ingress, and Cilium eBPF-based CNI unifying observability — we analyze 5 critical c
2026-03-01 · 20 min read #kubernetes#networking#nftables#ipvs#istio