DevOps Blog Archive

Kubernetes upgrades are a leading cause of self-inflicted incidents: deprecated APIs break workloads, node evictions drop in-flight requests, and version skew causes silent failures. This guide covers zero-downtime node pool strategies, disruption budgets, and rollback planning.

Over-provisioning burns cloud budget. Under-provisioning causes production incidents. Kubernetes has multiple built-in and add-on autoscaling mechanisms, and picking the right combination for your workload is the difference between a stable, cost-efficient cluster and a constant firefight. This guide covers HPA, VPA, KEDA, and the cluster autoscaler with practical examples.

PodSecurityPolicy was removed in Kubernetes 1.25, but many teams still run without a replacement. Pod Security Admission is built into the API server and requires no extra controllers. Here is a practical step-by-step migration plan covering audit, warn, and enforce modes, plus how to handle privileged workloads.

Losing etcd means losing every workload, secret, and configuration in your Kubernetes cluster. This guide covers Backup for GKE, snapshot-based strategies, automated scheduling, disaster recovery procedures, and how to test your restore plan before you need it.

CI/CD pipelines are now the primary attack surface for modern infrastructure teams. Here is a practical approach to securing pipeline credentials, integrating SAST and SCA scanning, signing build artifacts, and enforcing automated security gates before production deployment.