DevOps Articles — CodersSecret

Learn Kubernetes, Docker, CI/CD, cron jobs, and infrastructure automation for production systems.

• Envoy Proxy and xDS: The Dynamic Control Plane for Modern Infrastructure — Understand Envoy proxy from the ground up — listeners, clusters, routes — then build a dynamic control plane with xDS. Learn why every service mesh (Istio, Linkerd, Consul) is built on Envoy.
• GreptimeDB + Grafana: Build a Modern Observability Stack from Scratch — Set up GreptimeDB as your time-series database and connect it to Grafana for real-time dashboards. A practical tutorial covering installation, data ingestion, PromQL queries, and production dashboards.
• Cloud IAM Demystified: AWS, GCP, and Azure Identity Management Compared — A practical guide to Cloud IAM across AWS, GCP, and Azure. Learn the terminology mapping, see real policy examples, and understand the right approach for production — no matter which cloud you use.
• Kubernetes Networking Made Simple: Services, Ingress, and Load Balancers Explained — Confused by ClusterIP, NodePort, LoadBalancer, Ingress, and ALB Controller? This beginner-friendly guide explains when to use each Kubernetes networking option — with real analogies, diagrams, and practical examples.
• Karpenter: Intelligent Kubernetes Autoscaling That Actually Works — A hands-on tutorial on Karpenter — the next-generation Kubernetes node autoscaler. Learn how it replaces Cluster Autoscaler, provisions the right nodes in seconds, and cuts your cloud bill by 60%.
• Kubernetes Operators: Build Your Own Operator Using Golang — Learn what Kubernetes Operators are, why they matter, and how to build your own custom operator from scratch using Golang and the Operator SDK.
• Cron Jobs Explained: The Complete Guide with Real-World Examples — Everything you need to know about cron jobs — from basic syntax to advanced scheduling patterns. Packed with practical examples anyone can follow.