Kubernetes
Kubernetes architecture: beginner’s guide
Trace a Deployment from the API server to a running container, and diagnose failures by the component responsible for each stage.
Read guideThe KubeDaily journal
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Practical explanations of containers, Kubernetes, and the decisions behind reliable systems. Pick a topic, take your time, and keep a useful guide close.
54 guides to explore
Kubernetes
StatefulSets: beginner’s guide
Understand stable identities and per-replica storage, then test persistence across Pod replacement without confusing it with backups or replication.
Read guideSecurity
NetworkPolicy: security guide
Test baseline connectivity, deny ingress and allow a labeled client while distinguishing policy admission from actual network enforcement.
Read guideCI/CD
Helm: production checklist
Review chart inputs and rendered resources, validate a release in isolation, and plan upgrades without mistaking rollback for data recovery.
Read guideSecurity
Image signing: security guide
Define digest, signer identity and issuer policy for cosign verification, and understand what signatures do not prove about image safety.
Read guideKubernetes
Pods and Deployments: A Production Checklist
A cluster-verifiable pre-production checklist for Deployments: image pinning, resources, probes, disruption budgets, and the drift checks that keep them true.
Read guideSecurity
Container Image Scanning: A Practical Security Guide
What image scanners actually check, how to fail builds on new criticals without drowning in findings, and how to keep accepted risk explicit and expiring.
Read guideCI/CD
GitHub Actions for Container Projects: A Beginner's Guide
A minimal container CI workflow on GitHub Actions: build on every commit, scan before publishing, least-privilege tokens, and cache-accelerated builds.
Read guideContainers
Build Smaller, Safer Docker Images
Build a multi-stage Docker image, run it as non-root, and learn practical caching, secret handling, and reproducible image maintenance.
Read guideKubernetes
Kubernetes Requests and Limits: A Practical Guide
What resource requests and limits actually control in Kubernetes, how QoS classes and OOMKills happen, and how to choose values from measurements instead of folklore.
Read guideKubernetes
Kubernetes Health Checks: Liveness, Readiness, and Startup Probes
Design liveness, readiness, and startup probes that route traffic correctly and restart only what is stuck — with a review checklist for avoiding restart storms.
Read guideCI/CD
Werf: A solution for implementing efficient and consistent software
Werf is an Open Source GitOps tool that helps to implement effective and consistent delivery pipelines with Kubernetes.
Read guideKubernetes
Okteto: Develop applications directly in your Kubernetes Cluster
Okteto accelerates Kubernetes development by allowing you to develop applications directly in your Kubernetes cluster with fast feedback loops.
Read guideKubernetes
K8sGPT: ChatGPT-based SRE for Kubernetes
K8sGPT is a tool for scanning your Kubernetes clusters, diagnosing and triaging issues in simple English using AI.
Read guideTools
Essential Kubernetes Tools for DevOps Engineers
A comprehensive guide to the most useful Kubernetes tools that every DevOps engineer should know about.
Read guideKubernetes
Cloud Native Learning Path for Beginners
A comprehensive guide to learning cloud native technologies from the ground up, covering containers, Kubernetes, DevOps practices, observability, service mesh, security, and more.
Read guideTips
10 kubectl Productivity Tips and Tricks
Boost your Kubernetes workflow with these essential kubectl productivity tips and tricks.
Read guideNetworking
Flannel: A Network Fabric for Containers
Flannel is a simple and easy way to configure a layer 3 network fabric designed for Kubernetes.
Read guideNetworking
Cloudflared Tunnel for Kubernetes
Learn how to set up and use Cloudflare Tunnels to secure and expose your Kubernetes services to the internet.
Read guideSecurity
Cert-Manager: Certificate Management for Kubernetes
Cert-Manager automates the management and issuance of TLS certificates from various issuing sources in Kubernetes clusters.
Read guideTools
Arkade: The Open Source Kubernetes Marketplace
Arkade provides a simple way to install Kubernetes apps and CLIs with a single command.
Read guideSecurity Tools
Trivy: Comprehensive Vulnerability, Secret & SBOM Security Scanner
Scan container images, file systems, Git repos, and live Kubernetes clusters for vulnerabilities, hardcoded secrets, misconfigurations, and generate CycloneDX/SPDX SBOMs.
Read guideSecurity Tools
Kyverno: Kubernetes Native Policy Engine & Admission Controller
Enforce security guardrails using pure Kubernetes YAML: validate container settings, mutate resource requests, generate default network policies, and verify image signatures.
Read guideSecurity Tools
Falco: Cloud-Native eBPF Runtime Security & Threat Detection
Detect suspicious behaviors and anomalous system calls at the Linux kernel boundary in real time: terminal shells, privilege escalation, and unauthorized host file reads.
Read guideSecurity Tools
kube-bench: Automated CIS Kubernetes Benchmark Auditing
Audit Kubernetes control planes, etcd, and worker nodes against official CIS Security Benchmarks with automated checks and actionable remediation guidance.
Read guideSecurity Tools
Kubescape: NSA-CISA Compliance & Kubernetes Risk Analysis
Evaluate cluster posture against NSA-CISA, MITRE ATT&CK, and CIS frameworks, visualize complex RBAC attack paths, and filter reachable CVEs using VEX.
Read guideArtificial Intelligence
vLLM: High-Throughput LLM Inference on Kubernetes with PagedAttention
Serve large language models in production with near-zero memory waste using PagedAttention, continuous batching, and multi-GPU tensor parallelism.
Read guideArtificial Intelligence
Ollama: Running Open-Source LLMs on Kubernetes with GPU Passthrough
Run local, private open-source language models like Llama 3 and Mistral in Kubernetes with GPU acceleration and an OpenAI-compatible REST API.
Read guideArtificial Intelligence
kubectl-ai: AI-Powered Kubernetes Administration CLI Plugin
Translate natural language requests into valid kubectl commands, generate complex manifests on the fly, and safely preview diffs with interactive approval.
Read guideArtificial Intelligence
HolmesGPT: Autonomous SRE Alert Investigator for Prometheus
Automate 3 AM incident triage: HolmesGPT autonomously correlates Prometheus alerts, cluster logs, and pod events to deliver instant root-cause summaries to Slack.
Read guideCI/CD Tools
Argo CD: Declarative GitOps Continuous Delivery & Sync Wave Automation
Master GitOps continuous delivery: manage applications, automate out-of-band drift self-healing, sequence complex rollouts with sync waves, and scale across clusters.
Read guideCI/CD Tools
Flux CD: Modular GitOps Toolkit, Helm Releases & Image Automation
Build composable GitOps pipelines with the GitOps Toolkit: reconcile Kustomize overlays, manage declarative HelmReleases, decrypt SOPS secrets, and auto-commit image tags.
Read guideCI/CD Tools
Tekton: Cloud-Native Serverless CI/CD Pipelines for Kubernetes
Build and test containers natively inside Kubernetes: define reusable Tasks and Pipelines, build rootless images with Kaniko, and auto-scale build runners to zero.
Read guideMonitoring & Observability
Prometheus Operator: Cloud-Native Monitoring, ServiceMonitors & Alertmanager
Automate cluster monitoring using Kubernetes Custom Resources: dynamically configure scrape targets with ServiceMonitors, write PromQL rules, and manage Alertmanager.
Read guideMonitoring & Observability
OpenTelemetry on Kubernetes: Distributed Traces, Metrics & Auto-Instrumentation
Unify observability with vendor-neutral OpenTelemetry: deploy the OTel Collector DaemonSet, enrich spans with pod metadata, and inject auto-instrumentation agents.
Read guideMonitoring & Observability
Pixie: Zero-Instrumentation eBPF Application Observability & Live SQL Tracing
Gain instant application observability without touching code: intercept HTTP/gRPC/SQL payloads, trace CPU flamegraphs, and query live cluster performance via PxL.
Read guideMonitoring & Observability
Grafana for Kubernetes: Dashboards-as-Code & Golden Signals
Visualize cluster health through Google Golden Signals: load Dashboards-as-Code from ConfigMaps, monitor memory saturation and CPU throttling, and correlate logs with traces.
Read guideNetwork & Service Mesh
Cilium: Next-Gen eBPF CNI, Kube-Proxy Replacement & Hubble
Replace iptables with high-performance eBPF: achieve O(1) packet routing, enforce granular L7 HTTP/DNS policies, enable WireGuard encryption, and observe traffic with Hubble.
Read guideNetwork & Service Mesh
Istio Service Mesh: Strict mTLS, Traffic Shifting & Circuit Breaking
Connect, secure, and observe microservices with Istio: enforce strict zero-trust mutual TLS, implement weighted Canary traffic splitting, and protect systems with circuit breaking.
Read guideNetworking
CoreDNS: Architecture, Plugin Pipelines & ndots Optimization
Master Kubernetes service discovery: customize the Corefile plugin pipeline, eliminate ndots:5 latency overhead, deploy NodeLocal DNSCache, and tune caching for high throughput.
Read guideNetworking
Traefik: Cloud-Native Ingress Controller, Middlewares & Gateway API
Route external traffic with zero-reload dynamic configuration: compose modular auth and rate limiting middlewares, auto-provision TLS certificates, and leverage the Gateway API.
Read guideAuto Scaling
Karpenter: High-Speed Just-in-Time Node Autoscaling on Kubernetes
Ditch rigid Auto Scaling Groups: Karpenter evaluates un-schedulable pods directly, launches right-sized cloud instances in under 45 seconds, and consolidates waste automatically.
Read guideAuto Scaling
KEDA: Event-Driven Autoscaling & Scale-to-Zero for Kubernetes
Scale workloads beyond CPU metrics: trigger auto-scaling from Kafka lag, RabbitMQ, SQS, and PostgreSQL queries, and eliminate idle compute costs with true scale-to-zero.
Read guideCost Optimization
OpenCost: Real-Time Kubernetes Cost Allocation & FinOps Monitoring
Pinpoint cloud spend down to the pod and namespace: allocate CPU, RAM, and GPU costs in real time, identify idle capacity waste, and automate FinOps showback reporting.
Read guideStorage
Longhorn: Cloud-Native Distributed Block Storage for Kubernetes
Turn local node NVMe/SSDs into resilient, replicated block storage: configure synchronous cross-node replication, execute live volume expansion, and schedule incremental S3 backups.
Read guideStorage
Rook-Ceph: Enterprise Block, File & Object Storage Orchestration
Orchestrate enterprise Ceph storage natively in Kubernetes: provision high-IOPS Block storage (RBD), shared multi-attach filesystems (CephFS), and S3 object stores (RGW).
Read guideBackup Tools
Velero: Enterprise Kubernetes Backup, CSI Snapshots & Disaster Recovery
Master cluster disaster recovery: back up Kubernetes manifests, capture point-in-time CSI volume snapshots to S3, and restore full namespaces seamlessly across clusters.
Read guideCluster Management
K9s: Terminal UI for Navigating and Operating Kubernetes Clusters
Supercharge your daily Kubernetes workflow: navigate resources with keyboard shortcuts, view decoded secrets instantly, stream logs, and customize workflows with plugins.
Read guideCluster Management
Kind: Running Multi-Node Kubernetes Clusters Locally in Docker
Spin up lightweight multi-node and HA control plane clusters on your laptop in seconds: sideload local images, map ingress host ports, and automate CI test pipelines.
Read guideDebugging & Troubleshooting
Stern: Multi-Pod and Multi-Container Log Streaming with Regex
Triage distributed issues effortlessly: tail multiple pods simultaneously using regular expressions, stream logs from newly scaled replicas, and filter out sidecar noise.
Read guideDebugging & Troubleshooting
Inspektor Gadget: eBPF Debugging & Kernel Tracing Toolkit for Kubernetes
Debug elusive production failures from the Kubernetes API: trace executed processes, pinpoint TCP drops, monitor filesystem access, and auto-generate NetworkPolicies using eBPF.
Read guideDevelopment Tools
Skaffold: Fast Inner-Loop Kubernetes Development & Hot File Sync
Accelerate your inner-loop development: automatically sync code edits directly into running containers in under 2 seconds, automate port-forwarding, and stream logs.
Read guideDevelopment Tools
Tilt: Multi-Service Kubernetes Development Environments as Code
Tame multi-service microservice development: define live-updating build pipelines in Python Tiltfiles, monitor health via an interactive web dashboard, and hot-reload containers.
Read guidePlatform Engineering
Crossplane: Building Internal Developer Cloud Platforms on Kubernetes
Replace external Terraform ticket queues: compose custom infrastructure APIs using CompositeResourceDefinitions, provision cloud databases in YAML, and self-heal drift 24/7.
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