90 articles
GitHub-hosted runners are slow and expensive at scale. Here's how to set up self-hosted GitHub Actions runners on Kubernetes with auto-scaling using Actions Runner Controller.
Which DevOps certifications actually get you hired and how much salary bump should you expect? An honest breakdown of every major cert in 2026.
Pods suddenly showing 'Evicted' status in Kubernetes? Here's every reason nodes evict pods and exactly how to prevent it from happening again.
Nginx Ingress and Traefik are the two most popular Kubernetes ingress controllers. Here's a real-world comparison to help you choose.
Step-by-step guide to building a real multi-node Kubernetes cluster using kubeadm — no managed services, no shortcuts.
Getting 502 Bad Gateway from your Nginx Ingress Controller? Here's every cause and the exact fix for each one.
Helm solves one of the most painful parts of Kubernetes — managing all those YAML files. Here's what it is, how it works, and why you need it.
Step-by-step project walkthrough: add security scanning, code quality gates, and policy enforcement to a GitHub Actions pipeline. Real configs, production-ready.
Comparing the top three secrets management solutions for Kubernetes and cloud environments in 2026. Pricing, features, complexity, and when to pick each.
Honest comparison of EKS, GKE, and AKS in 2026: pricing, developer experience, networking, autoscaling, and which one to pick for your use case.
Full project walkthrough: provision a production-grade AWS VPC, EKS cluster, RDS, S3, and IAM with Terraform. Real code, real architecture, ready to use.
Job descriptions ask for everything. Here's what actually matters to hiring managers in 2026 — the skills that get you shortlisted, the ones that get you hired, and the ones that get you promoted.
Your helm upgrade ran successfully but nothing changed in the cluster. Here's every reason this happens and how to fix each one.
GitOps explained in plain English — what it is, how it's different from traditional CI/CD, and how tools like ArgoCD and Flux work. No jargon.
Step-by-step project walkthrough: set up Prometheus, Grafana, Loki, and AlertManager on Kubernetes using Helm. Real configs, real dashboards, production-ready.
Getting 'permission denied' when running kubectl exec? Here are all the real reasons it happens and exactly how to fix each one.
Static alerts miss 40% of real incidents. Learn how AI and ML-based anomaly detection — using tools like Prometheus + ML, Dynatrace, and custom LLM runbooks — catches what thresholds can't.
A full project walkthrough — from a simple app to a production-grade GitOps pipeline with automated builds, image scanning, and deployments to AWS EKS using ArgoCD.
Not just another list of project ideas. These are the specific projects that hiring managers at top companies are looking for — with exactly what to build and how to present them.
Getting 'Error: UPGRADE FAILED: another operation (install/upgrade/rollback) is in progress' in Helm? Here's exactly why it happens and how to fix it in under 2 minutes.
Step-by-step guide to installing FluxCD, bootstrapping it with GitHub, setting up Kustomizations and HelmReleases, and managing multi-environment deployments with GitOps.
Karpenter replaces Cluster Autoscaler with faster, more cost-efficient node provisioning. Learn architecture, NodePools, disruption budgets, Spot integration, and production best practices.
Kubernetes HPA not scaling your pods? Walk through every root cause — missing metrics, wrong resource requests, cooldown periods — and fix each one systematically.
A real comparison of the three most popular monitoring tools — what they're actually good at, where they fall short, and which one fits your team's situation.
VMs had a 30-year run. But serverless containers — Fargate, Cloud Run, Container Apps — are making infrastructure management optional. Here's why this shift is unstoppable.
Service mesh sounds complicated but the concept is simple. Here's what it actually does, why teams use it, and whether you need one — explained without the buzzwords.
Why Kubernetes is moving from centralized cloud clusters to distributed edge deployments. Covers KubeEdge, k3s, Akri, and the architectural shift toward edge-native infrastructure.
Step-by-step guide to setting up Prometheus Alertmanager for Kubernetes monitoring. Covers installation, alert rules, routing, Slack/PagerDuty integration, silencing, and production best practices.
Everything you need to know about Kubernetes VPA. Covers installation, recommendation modes, right-sizing strategies, VPA vs HPA, and production best practices for resource optimization.
How to use AI and machine learning for Kubernetes capacity planning. Covers predictive autoscaling, cost optimization, tools like StormForge and Kubecost, and building custom ML models for resource forecasting.
Step-by-step guide to installing and configuring Istio service mesh on Kubernetes. Covers traffic management, mTLS, observability, canary deployments, and production best practices.
Why WebAssembly (Wasm) is poised to disrupt Docker containers in cloud-native computing. Covers SpinKube, WASI, Fermyon, wasmCloud, and the practical timeline for adoption.
AI agents are the next-gen microservices, but with unpredictable communication patterns. Learn how Kubernetes networking, Gateway API, Cilium, and eBPF are adapting for agentic traffic in 2026.
Step-by-step guide to migrating from Ingress-NGINX to Kubernetes Gateway API. Includes YAML examples, implementation choices, testing strategy, and cutover plan.
Fix PodDisruptionBudget misconfigurations that block kubectl drain during cluster upgrades, node maintenance, and autoscaler operations. Real scenarios and step-by-step solutions.
Everything you need to know about Cilium, the eBPF-powered CNI for Kubernetes. Covers architecture, installation, network policies, observability with Hubble, and replacing kube-proxy.
Step-by-step guide to setting up Argo Workflows for Kubernetes-native CI/CD. Covers installation, workflow templates, artifact management, CI pipeline examples, and integration with ArgoCD.
Fix Kubernetes DNS resolution failures caused by CoreDNS misconfigurations, ndots issues, and pod DNS policies. Real troubleshooting scenarios with step-by-step solutions.
Step-by-step guide to installing Tekton on Kubernetes and building your first CI/CD pipeline — Tasks, Pipelines, Triggers, and Dashboard with practical examples.
Complete guide to Kubernetes NetworkPolicies: default deny, ingress/egress rules, namespace isolation, CIDR blocks, and production patterns for zero-trust pod networking.
Why the era of hand-writing thousands of YAML lines is ending. CUE, KCL, Pkl, CDK8s, and general-purpose languages are replacing raw YAML for infrastructure configuration.
Fix the common Helm error 'has no deployed releases' that blocks upgrades. Step-by-step diagnosis and 4 proven solutions including history cleanup and force replacement.
Step-by-step guide to installing and configuring Istio service mesh on Kubernetes — traffic management, mTLS, observability, and canary routing with practical examples.
How teams are building Kubernetes operators powered by LLMs to auto-remediate incidents, optimize resources, and manage complex deployments — with architecture patterns and real examples.
Step-by-step guide to installing Argo Workflows, creating your first workflow, building CI/CD pipelines, and running DAG-based tasks on Kubernetes.
Pods won't delete and stuck in Terminating? Here's how to diagnose finalizers, graceful shutdown issues, and force-delete stuck pods step by step.
Learn how to use Kyverno to enforce security policies, validate resources, mutate configurations, and generate defaults in your Kubernetes clusters.
AWS Fargate, Google Cloud Run, and Azure Container Apps are making raw Kubernetes management obsolete. The future is serverless containers — and it's closer than you think.
NVIDIA has dominated GPU computing in Kubernetes for years. But AMD, Intel, and custom accelerators are breaking that monopoly. Here's why GPU diversification is inevitable.
VPA restarting your pods every time it adjusts resources? Here's how to stop the evictions using Kubernetes 1.35's In-Place Pod Resize feature.
Step-by-step guide to setting up Kubernetes VPA with In-Place Pod Resize. Auto-scale CPU and memory without pod restarts. Full tutorial with YAML examples.
Ingress-NGINX is officially being retired. Your ingress rules will stop working. Here's the step-by-step migration plan to Kubernetes Gateway API before it's too late.
In-Place Pod Resize is now GA in Kubernetes 1.35. Change CPU and memory on running pods without restarts. Here's everything you need to know.
Step-by-step guide to running GitHub Actions self-hosted runners on Kubernetes with auto-scaling. Save money, get more control, and speed up your CI/CD pipelines.
Master vCluster — create lightweight virtual Kubernetes clusters inside your existing cluster. Covers setup, use cases, CI/CD ephemeral environments, and production patterns.
Wasm is coming for your containers. With WASI Preview 2, SpinKube, and wasmCloud gaining traction, WebAssembly might replace sidecars and lightweight microservices. Here's why.
Master Cilium — the eBPF-based CNI that's become the default for Kubernetes networking. Covers installation, network policies, Hubble observability, and service mesh mode.
Step-by-step guide to setting up Tailscale for secure access to Kubernetes clusters, databases, and internal tools without traditional VPNs.
Pods can't resolve hostnames? Getting NXDOMAIN or 'no such host' errors? Here's how to diagnose and fix CoreDNS issues in Kubernetes step by step.
A step-by-step tutorial on setting up Crossplane to provision and manage cloud infrastructure directly from Kubernetes. Build a self-service platform where developers can request AWS, GCP, or Azure resources through kubectl.
ImagePullBackOff is one of the most common Kubernetes errors. This guide covers every root cause — wrong image names, missing auth, network issues, rate limits — with step-by-step debugging and fixes.
cert-manager Certificate stuck in a non-Ready state is a common Kubernetes TLS issue. This guide covers every root cause — DNS challenges, RBAC, rate limits, and issuer problems — with step-by-step fixes.
Flagger automates canary deployments on Kubernetes — progressively shifting traffic to new versions and rolling back automatically if metrics degrade. This step-by-step guide shows you how to set it up with Nginx Ingress.
Pods stuck in Pending on EKS are caused by a handful of known issues — insufficient node capacity, taint mismatches, PVC problems, and more. Here's how to diagnose and fix each one.
KEDA lets Kubernetes scale workloads based on any external event source — Kafka, RabbitMQ, SQS, Redis, HTTP, and 60+ more. This guide covers architecture, installation, and real-world ScaledObject examples.
Grafana Loki is the Prometheus-inspired log aggregation system built for Kubernetes. This guide covers architecture, installation, LogQL queries, and production best practices.
HashiCorp Vault is the industry standard for secrets management. This step-by-step guide shows you how to install Vault, configure it, and integrate it with Kubernetes.
Istio and Linkerd are powerful but heavy. eBPF-based networking is changing the game. Here's why I think the sidecar proxy era is ending.
The Kubernetes Ingress API is being replaced by the Gateway API. Here's a complete step-by-step guide to setting it up with Nginx Gateway Fabric and migrating from Ingress.
OOMKilled crashes killing your pods? Here's the real cause, how to diagnose it fast, and the exact steps to fix it without breaking production.
CrashLoopBackOff, OOMKilled, exit code 1, exit code 137 — Docker containers restart for specific, diagnosable reasons. Here is how to identify the exact cause and fix it in minutes.
eBPF is quietly replacing iptables, sidecars, and monitoring agents in Kubernetes. Here's what it is, why it matters, and what it means for your career in 2026.
KEDA lets you scale Kubernetes workloads based on Kafka lag, SQS queue depth, Redis lists, HTTP traffic, and 60+ other event sources. This guide covers everything from installation to production patterns.
Your pod says Pending and nothing is happening. Here's how to diagnose every possible reason — insufficient resources, taints, PVC issues, node selectors — and fix them fast.
The engineers who built Kubernetes never wanted you to think about it. A new generation of abstractions is quietly removing Kubernetes from the developer's line of sight — and the companies doing it best are winning the talent war.
OpenTelemetry is becoming the default observability standard, replacing vendor-specific agents. This guide covers what it is, how traces/metrics/logs work, and how to instrument a Node.js app end-to-end.
A complete guide to rolling updates, PodDisruptionBudgets, readiness probes, preStop hooks, and graceful shutdown — everything you need to deploy without dropping a single request.
Cloud costs are out of control at most companies. FinOps is the discipline that fixes it — and DevOps engineers are the most important people in any FinOps implementation. Here is everything you need to know.
Helm upgrade failing silently? Release stuck in pending state? This guide covers the 10 most common Helm errors DevOps engineers hit in production — with exact commands and fixes.
Backstage is the open-source Internal Developer Portal (IDP) from Spotify, now used by Netflix, LinkedIn, and thousands of engineering teams. This step-by-step guide shows you how to deploy it, add your services, and integrate it with GitHub and Kubernetes.
Your CI/CD pipeline failed and you don't know why. This complete debugging guide covers GitHub Actions, Jenkins, and ArgoCD failures with real error messages and step-by-step fixes.
A step-by-step guide to building a complete DevSecOps pipeline. Learn how to embed security scanning, SAST, secrets detection, and container vulnerability scanning into your CI/CD workflow using GitHub Actions.
Platform engineering is not a buzzword — it is fundamentally changing how software is delivered. Here is why DevOps as we knew it is evolving, what platform engineering actually means, and what to do about it.
MLOps explained from the ground up. Learn what MLOps is, how it differs from DevOps, the tools in the MLOps stack, and how DevOps engineers can transition into AI infrastructure roles in 2026.
The most complete Kubernetes troubleshooting guide for 2026. Learn how to diagnose and fix Pod crashes, ImagePullBackOff, OOMKilled, CrashLoopBackOff, networking issues, PVC problems, node NotReady, and more — with exact kubectl commands.
Learn how to set up Prometheus and Grafana from scratch in 2026. Covers metrics collection, PromQL queries, alerting rules, Alertmanager, Grafana dashboards, and Kubernetes monitoring with kube-prometheus-stack.
A deep-dive comparison of the three most popular GitOps and CI/CD tools — ArgoCD, Flux CD, and Jenkins. Learn which one fits your team, use case, and Kubernetes setup.
A comprehensive guide to the essential DevOps tools for containers, CI/CD, infrastructure, monitoring, and security — curated for practicing engineers.
Running Kubernetes in production can get expensive fast. Here are 10 battle-tested strategies to cut your K8s cloud bill by 40–70% without sacrificing reliability.
Understand every component of Kubernetes — Control Plane, Worker Nodes, Pods, Services, and Deployments — with clear diagrams and practical examples.