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12 articles on DevOps, Cloud & Infrastructure

kuberneteskarpentercost-optimization

Karpenter Node Autoprovisioning: Cut Kubernetes Costs 40%+

Replace Cluster Autoscaler with Karpenter for faster scaling, spot instance optimization, and real cost savings. Complete setup guide with benchmarks.

GeekOnCloud·May 10, 2026·6 min read
prometheusmonitoringalerting

Prometheus Alerting Rules That Actually Matter in Production

Cut through alert noise with battle-tested Prometheus rules. Real thresholds, actual configs, and the alerts that wake you up for good reason.

GeekOnCloud·May 9, 2026·5 min read
terraforminfrastructure-as-codedevops

Writing Reusable Terraform Modules with Semantic Versioning

Build production-grade Terraform modules with proper versioning, input validation, and registry publishing. Includes real module structure and CI/CD pipeline.

GeekOnCloud·May 1, 2026·6 min read
microsoft-defenderendpoint-securitywindows-security

Microsoft Defender for Endpoint Setup Guide for IT Admins

Deploy Microsoft Defender for Endpoint across your org. Complete IT admin guide covering onboarding, policies, ASR rules, and EDR configuration.

GeekOnCloud·Apr 30, 2026·7 min read
observabilitygrafana-tempodistributed-tracing

Distributed Tracing with Grafana Tempo: Production Setup Guide

Deploy Grafana Tempo for distributed tracing. Complete setup with OpenTelemetry, trace correlation, and real query examples for debugging microservices.

GeekOnCloud·Apr 30, 2026·6 min read
incident-responseon-callsre

On-Call Runbooks That Actually Work at 3AM

Stop writing useless runbooks. Build incident docs with decision trees, copy-paste commands, and real escalation paths that save you at 3AM.

GeekOnCloud·Apr 29, 2026·7 min read
microsoft-defenderendpoint-securityintune

Microsoft Defender for Endpoint Setup Guide for IT Admins

Deploy Microsoft Defender for Endpoint across your org. Step-by-step onboarding, GPO configs, Intune policies, and alert tuning for production environments.

GeekOnCloud·Apr 29, 2026·7 min read
intuneautopilotwindows-deployment

Intune AutoPilot Setup Guide: Zero-Touch Windows Deployment

Deploy Windows devices at scale with Intune AutoPilot. From hardware hash collection to dynamic groups and ESP configs. Complete walkthrough.

GeekOnCloud·Apr 29, 2026·6 min read
gitlab-cigithub-actionsci-cd

GitLab CI vs GitHub Actions: Real Performance & Cost Comparison

Battle-tested comparison of GitLab CI and GitHub Actions. Runner performance, YAML syntax, caching, and costs from 2 years running both in production.

GeekOnCloud·Apr 29, 2026·6 min read
chaos-engineeringkuberneteslitmus

LitmusChaos on Kubernetes: Practical Chaos Engineering Guide

Deploy LitmusChaos on K8s, run pod-kill and network chaos experiments, and build resilient systems. Real configs and YAML examples included.

GeekOnCloud·Apr 29, 2026·6 min read
KubernetesGitOpsCI/CD

Zero-downtime Kubernetes deployments with Argo Rollouts

Stop using RollingUpdate and start using progressive delivery. A practical guide to canary and blue/green deployments with Argo Rollouts on any Kubernetes cluster.

GeekOnCloud·Apr 20, 2025·3 min read
TerraformPlatform EngineeringCloud Cost

Terraform at scale — structuring modules for 50+ environments

Monolithic Terraform state files are a footgun. Here's the module structure and workspace strategy we use to manage 50+ environments without losing our minds.

GeekOnCloud·Apr 10, 2025·3 min read