Guide to Kubernetes deployment strategies and rollout management for production apps: explains recreate, rolling update, blue-green, and canary with pros/cons; outlines best practices - monitoring/logging, automated rollbacks, gradual rollouts, rigorous testing, and team communication - and illustrates with an e-commerce blue-green example to achieve high availability, safe releases, and minimal downtime.
Kubernetes Persistent Volumes (PVs) decouple storage from pod lifecycles, using PVCs, PVs, and StorageClasses to provision reliable, scalable storage across local, network, SAN, and cloud backends. This guide explains how claims bind to volumes, highlights HA, scalability, and flexibility benefits, outlines best practices, and shows an e-commerce database use case resilient to restarts and failures.
Practical guide to Kubernetes configuration management: use ConfigMaps to externalize non-sensitive key-value settings and Secrets to securely store passwords, API keys, and certificates. Covers creation with kubectl, env/volume injection in Pods, RBAC-scoped access and regular rotation, plus a web app use case—enabling simpler deployments, easier scaling, and reduced security risk.
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