Tag: #kubernetes
Writing on GPUs, LLMs, MLOps, Kubernetes — and mindset · 247 posts
Helm Plugins and Testing Strategies: Extensibility and Quality Assurance
Analyze Helm plugin system and chart testing strategies. Covers plugin.yaml structure, helm-diff/helm-secrets/helm-unittest plugins, helm test, ct (chart-testing) tool, helm lint, values.schema.json schema validation, an
2026-03-20 · 14 min read #helm#kubernetes#open-source-internals[Golden Kubestronaut] KCSA Extra 30 Practice Questions - Advanced Cloud Native Security
30 additional practice questions for the KCSA (Kubernetes and Cloud Native Security Associate) exam. Covers supply chain security (SLSA, Sigstore), runtime security (Falco, Tetragon), zero trust, SPIFFE/SPIRE, image sign
2026-03-20 · 14 min read #kubernetes#golden-kubestronaut#kcsa#certification#security[Golden Kubestronaut] CKS Extra 30 Practice Questions - Advanced Security Scenarios
30 additional advanced security scenario questions for CKS exam preparation. Covers Falco rules, Trivy/Grype image scanning, OPA/Gatekeeper advanced policies, AppArmor/Seccomp profiles, Pod Security Standards, RuntimeCla
2026-03-20 · 14 min read #kubernetes#golden-kubestronaut#cks#certification#security[Golden Kubestronaut] CGOA Practice Exam 80 Questions - Certified GitOps Associate
80 practice questions for CGOA toward Golden Kubestronaut. Covers all domains including GitOps principles, ArgoCD, Flux, and Git workflows.
2026-03-20 · 33 min read #kubernetes#golden-kubestronaut#gitops#cgoa#argocd[Golden Kubestronaut] PCA Practice Exam 80 Questions - Prometheus Certified Associate
80 practice questions for PCA (Prometheus Certified Associate) certification toward Golden Kubestronaut. Covers all domains including Prometheus architecture, PromQL, alerting, service discovery, and storage.
2026-03-20 · 33 min read #kubernetes#golden-kubestronaut#prometheus#pca#certification[Golden Kubestronaut] ICA Practice Exam 80 Questions - Istio Certified Associate
80 practice questions for the ICA exam toward Golden Kubestronaut. Covers Istio architecture, traffic management, security, and observability across all domains.
2026-03-20 · 30 min read #kubernetes#golden-kubestronaut#istio#service-mesh#ica[Golden Kubestronaut] CKA Extra 30 Practice Questions - Advanced Scenarios
30 additional advanced scenario questions for CKA exam preparation. Covers etcd backup/restore, kubeadm upgrade edge cases, complex RBAC scenarios, NetworkPolicy troubleshooting, CSI drivers, kubelet configuration, API s
2026-03-20 · 15 min read #kubernetes#golden-kubestronaut#cka#certificationHelm Template Engine Deep Dive: Go Templates, Sprig, Named Templates
Deep dive into Helm template engine internals. Covers Go template parsing and execution pipeline, Sprig library functions (string, math, date, crypto, list, dict), named templates with define/template/include, flow contr
2026-03-20 · 6 min read #helm#kubernetes#open-source-internalsHelm Chart Design Best Practices: Naming, Values Design, GitOps Integration
Comprehensive Helm chart design best practices. Covers naming conventions and label standards (app.kubernetes.io/), values design strategies, multi-environment management, subcharts vs umbrella charts, GitOps integration
2026-03-20 · 2 min read #helm#kubernetes#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#gpuHelm 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-internalsvirt-handler Deep Dive: What the VM Node Agent Next to kubelet Does
Analyzes why virt-handler is deployed as a per-node DaemonSet, how it bridges launcher Pods and libvirt domains, and how it handles networking, storage, and status reporting.
2026-03-20 · 6 min read #architecture#kubevirt#kubernetes#virt-handler#virtualizationLive Migration 1: From Migration CRD to Target Pod Creation
Explains from the control plane perspective how virt-controller orchestrates policy, capacity, timeouts, and target Pod creation after a VirtualMachineInstanceMigration object is created.
2026-03-20 · 6 min read #architecture#kubevirt#live-migration#controller#kubernetesThe Moment a User Request Becomes a VMI: virt-api and Admission Flow
Describes what validation, defaulting, subresource handling, and migration request creation virt-api performs as KubeVirt's API entry point, based on source code.
2026-03-20 · 5 min read #architecture#kubevirt#kubernetes#virtualization#apiKubeVirt Source Code Reading Map: Where to Start to Grasp the Entire Structure
Proposes a reading map for grasping the overall KubeVirt structure quickly by reading source code in the order of API types, controller, node agent, launcher, network, migration, and kernel integration.
2026-03-20 · 6 min read #architecture#kubevirt#source-code#reading-map#kubernetesHow KubeVirt Runs VMs on Pods
A source-code-level dissection of how KubeVirt runs VMs by reusing Pod scheduling, Pod networking, and Pod storage without modifying Kubernetes itself.
2026-03-20 · 6 min read #architecture#kubevirt#kubernetes#virtualization#qemuCPU, Memory, NUMA, HugePages: How KubeVirt Aligns the Resource Model
Explains how KubeVirt translates VMI CPU and memory requests into launcher Pod resource requests, memory overhead, CPU pinning, NUMA, and hugepages models.
2026-03-20 · 5 min read #architecture#kubevirt#kubernetes#numa#hugepagesvirt-controller Deep Dive: Creating VM Pods with Informers, Queues, and Reconcile
Dissects how virt-controller watches VMIs, Pods, PVCs, and migrations, creates launcher Pods, and propagates state through informers and reconcile loops.
2026-03-20 · 6 min read #architecture#kubevirt#kubernetes#controller#reconciliation