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Writing on GPUs, LLMs, MLOps, Kubernetes — and mindset · 3517 posts
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etcd Watch and Lease Mechanism Analysis
Deep analysis of etcd Watch and Lease mechanisms. Covers watchable store internals, event history and generation, gRPC streaming, compacted revision handling, Lease grant/revoke/keepalive, TTL implementation, and Kuberne
2026-03-20 · 4 min read #etcd#distributed-systems#open-source-internalsetcd Cluster Operations: Disaster Recovery and Performance Tuning
Covers essential etcd cluster operations including member management (add, remove, learner promotion), snapshots and backup/restore, disaster recovery (quorum loss, data corruption), and performance tuning (disk latency,
2026-03-20 · 4 min read #etcd#distributed-systems#open-source-internalsetcd Storage Engine: BoltDB and MVCC
Deep analysis of etcd storage engine internals. Covers BoltDB B+ tree structure, page types, transaction model, MVCC revision, key index, generation concepts, compaction and defragmentation, and backend batch optimizatio
2026-03-20 · 5 min read #etcd#distributed-systems#open-source-internalsetcd Architecture Internals: Raft Consensus Algorithm
A deep dive into etcd core architecture. Covers the Raft consensus algorithm (leader election, log replication, safety guarantees), internal structures like EtcdServer, raftNode, and apply loop, BoltDB-backed MVCC key-va
2026-03-20 · 6 min read #etcd#distributed-systems#open-source-internalsetcd and Kubernetes: API Server Integration Analysis
Analyzes etcd and Kubernetes API Server integration. Covers how kube-apiserver uses etcd (storage backend, codec, transformer), key hierarchy (/registry/ prefix), API Server Watch Cache (cacher, watchCache, store), etcd
2026-03-20 · 3 min read #etcd#distributed-systems#open-source-internals[Virtualization] 09. Virtualization Platform Comparison: QEMU vs VirtualBox vs VMware vs KubeVirt
A comprehensive comparison of four major virtualization platforms across architecture, GPU support, performance, licensing, and use cases. A guide to choosing the optimal platform.
2026-03-20 · 8 min read #virtualization#kubernetes#gpu[Virtualization] 06. KubeVirt: Running VMs on Kubernetes
Learn how to run virtual machines natively on Kubernetes clusters with KubeVirt. A practical guide covering CRDs, architecture, CDI, networking, and live migration.
2026-03-20 · 8 min read #virtualization#kubernetes#gpu[Virtualization] 03. VirtualBox and VMware: From Desktop to Enterprise
VirtualBox architecture and limitations, VMware product lineup (ESXi, Workstation, Fusion), the vSphere ecosystem, and vGPU support compared.
2026-03-20 · 8 min read #virtualization#infrastructure#cloud[Prometheus] Service Discovery Mechanism: Complete Analysis
Complete analysis of Prometheus service discovery internals. Covers Discovery Manager architecture, Provider interface, kubernetessd watch mechanism, relabeling internals, filesd and HTTP SD, and the target lifecycle at
2026-03-20 · 9 min read #prometheus#observability#open-source-internals[Prometheus] Alerting Pipeline: From Rule Evaluation to Alertmanager Delivery
Deep dive into the Prometheus alerting pipeline internals. Covers Rule Manager evaluation mechanism, Alert state machine (inactive/pending/firing/resolved), for duration, Alertmanager internals (routing tree, inhibition,
2026-03-20 · 10 min read #prometheus#observability#open-source-internalsHelm Release Lifecycle: install, upgrade, rollback Internals
Analyze the complete Helm release lifecycle. Covers Secret-based release storage, install/upgrade/rollback flows, Hook system (pre-install, post-install, etc.), Three-way Strategic Merge Patch, atomic installs, and the -
2026-03-20 · 3 min read #helm#kubernetes#open-source-internalsHelm Architecture Internals: Design Philosophy and Structure of Helm 3
Deep dive into Helm 3 architecture internals. Covers the client-only architecture after Tiller removal, Secret/ConfigMap-based release storage, chart structure (Chart.yaml, values.yaml, templates/), Go template engine, a
2026-03-20 · 7 min read #helm#kubernetes#open-source-internals[containerd] Networking and Storage
Analyzes containerd networking and storage internals. Covers CNI integration, network namespaces, volume mounts, device access (GPU), SELinux/AppArmor at the source code level.
2026-03-20 · 19 min read #containerd#container-runtime#open-source-internals[containerd] Container Lifecycle Management
Analyzes containerd container lifecycle management. Covers container creation, OCI runtime spec, Task execution, shim lifecycle, checkpoint/restore, and runtime classes (runc, kata, gVisor, Wasm) at the source code level
2026-03-20 · 15 min read #containerd#container-runtime#open-source-internals[containerd] CRI Implementation: Kubernetes Runtime Integration
Analyzes containerd CRI implementation internals. Covers CRI gRPC service, Pod Sandbox, container spec translation, streaming (exec/attach/port-forward), RuntimeClass, and NRI (Node Resource Interface) at the source code
2026-03-20 · 18 min read #containerd#container-runtime#open-source-internalscontainerd Architecture Internals
Analyzes the architecture of containerd, the industry-standard container runtime. Covers gRPC API, plugin system (services, snapshotter, runtime), plugin registration/initialization/dependency resolution, CRI implementat
2026-03-20 · 3 min read #containerd#container-runtime#open-source-internalsCilium 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-internals