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4 articles
Level: All Beginner Intermediate Advanced
Kubernetes

Kubernetes Pod Disruption Budgets: Preventing Downtime During Node Drains and Upgrades

How Pod Disruption Budgets really work: minAvailable vs maxUnavailable, percentage rounding, blocked AKS drains, eviction API behaviour, and monitoring.

Thorsteinn Halldorsson · August 10, 2026 · 17 min read Intermediate
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DevOps

Docker Multi-Stage Builds: Shrink Your Images and Speed Up CI

Docker multi-stage builds cut image sizes by 90% and accelerate CI pipelines. Master the pattern with real Dockerfile examples for Go, Node, and Python.

Thorsteinn Halldorsson · June 23, 2026 · 11 min read Intermediate
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Kubernetes

AKS Production Hardening: A 2026 Security and Reliability Checklist

AKS production hardening done right: 2026 checklist covering RBAC, network policy, node security, and reliability patterns to protect live clusters.

Thorsteinn Halldorsson · June 23, 2026 · 15 min read Intermediate
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Kubernetes

Kubernetes Ingress Controllers Compared: nginx vs Traefik vs Azure Application Gateway

Kubernetes ingress controller comparison of NGINX, Traefik and Azure Application Gateway: TLS, WAF, scaling, cost and when to pick each on AKS.

Thorsteinn Halldorsson · June 17, 2026 · 16 min read Intermediate
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