https://shaikahmadnawaz.dev Shaik Ahmad Nawaz (shaikahmadnawaz) — Full Stack Engineer sharing insights on web development, DevOps, cloud infrastructure, and AI https://shaikahmadnawaz.dev/blog/kubernetes-config-secrets How configuration and secrets work in Kubernetes - ConfigMaps and Secrets, env vars vs file mounts and the live-update difference, why Secrets are encoded not encrypted, projected volumes and the downward API, and immutability. Fri, 03 Jul 2026 00:00:00 GMT https://shaikahmadnawaz.dev/blog/kubernetes-rollouts How to ship changes in Kubernetes without downtime - rolling updates with maxSurge/maxUnavailable, the readiness gate, rollbacks, PodDisruptionBudgets that protect availability during drains, and pod priority and preemption. Thu, 02 Jul 2026 00:00:00 GMT https://shaikahmadnawaz.dev/blog/kubernetes-storage How persistent storage works in Kubernetes - PersistentVolumes and Claims, StorageClasses and dynamic provisioning, CSI drivers, access modes (RWO/ROX/RWX), reclaim policies, zone-aware binding, and the gotchas that cause data loss and stuck pods. Wed, 01 Jul 2026 00:00:00 GMT https://shaikahmadnawaz.dev/blog/kubernetes-networking How traffic actually moves in a Kubernetes cluster - the flat pod network, why Services exist, the four Service types, endpoints, headless services, CoreDNS service discovery, and how Ingress routes the outside world in. Tue, 30 Jun 2026 00:00:00 GMT https://shaikahmadnawaz.dev/blog/kubernetes-workload-types Every Kubernetes workload controller encodes an assumption about your app - stateless and interchangeable, stable identity, one-per-node, or run-to-completion. A practical guide to Deployment, StatefulSet, DaemonSet, Job, and CronJob, and how to pick the right one. Mon, 29 Jun 2026 00:00:00 GMT https://shaikahmadnawaz.dev/blog/autoscaling-in-kubernetes The three things you can autoscale in Kubernetes - pod count (HPA), pod size (VPA), and node count (Cluster Autoscaler) - plus KEDA for event-driven scaling, why CPU is often the wrong signal, and how to stop autoscalers from fighting each other. Sun, 28 Jun 2026 00:00:00 GMT https://shaikahmadnawaz.dev/blog/controlling-where-pods-land How to control pod placement in Kubernetes - nodeSelector, node affinity, taints and tolerations, pod affinity, topology spread, and the node pool design (system, user, GPU, spot) that keeps workloads where they belong. Sat, 27 Jun 2026 00:00:00 GMT https://shaikahmadnawaz.dev/blog/why-pods-get-killed Why Kubernetes kills, restarts, and evicts pods - requests vs limits, QoS classes, OOMKill vs eviction, and how misconfigured probes quietly take down healthy apps. Fri, 26 Jun 2026 00:00:00 GMT https://shaikahmadnawaz.dev/blog/kubernetes-architecture A practical breakdown of how Kubernetes actually works under the hood - the API server, etcd, scheduler, controller manager, kubelet, kube-proxy, and how admission controllers intercept every request before it hits the cluster. Sun, 21 Jun 2026 00:00:00 GMT https://shaikahmadnawaz.dev/blog/kafka A practical guide to Kafka - how it works under the hood, why it exists, and the operational patterns I've learned from running event-driven systems. Sat, 02 May 2026 00:00:00 GMT https://shaikahmadnawaz.dev/blog/mlflow A practical introduction to MLflow - experiment tracking, model registry, and how it fits into your ML workflow. Tue, 28 Apr 2026 00:00:00 GMT https://shaikahmadnawaz.dev/blog/data-versioning Why versioning data matters as much as versioning code, and how tools like DVC make it practical for ML projects. Mon, 27 Apr 2026 00:00:00 GMT https://shaikahmadnawaz.dev/blog/secure-kubernetes-design A practical guide to designing a secure Kubernetes platform using layered controls across identity, networking, secrets, ingress, and workload hardening - with Azure as the implementation. Sun, 19 Apr 2026 00:00:00 GMT https://shaikahmadnawaz.dev/blog/cloud-and-azure A practical guide to cloud computing and Azure - covering identity, networking, AKS, databases, cost management, and the real-world scenarios I've encountered in production. Sun, 12 Apr 2026 00:00:00 GMT https://shaikahmadnawaz.dev/blog/kubernetes-troubleshooting A practical Kubernetes troubleshooting workflow with real incident patterns, commands, and recovery techniques I use during production outages. Thu, 09 Apr 2026 00:00:00 GMT https://shaikahmadnawaz.dev/blog/containerize-app A FastAPI application containerized with Docker, using multi-stage builds, security hardening, CI/CD with GitHub Actions, and Trivy image scanning. Sat, 04 Apr 2026 00:00:00 GMT https://shaikahmadnawaz.dev/blog/social-content-extractor A CLI tool that turns public Instagram posts, reels, and YouTube Shorts into reusable text for notes, docs, and LLM workflows. Sun, 22 Mar 2026 00:00:00 GMT https://shaikahmadnawaz.dev/blog/lessons-from-ramadan-for-developers Fasting trains the same muscles needed for deep work - discipline, focus, and delayed gratification. Here's what Ramadan taught me about building software. Sat, 21 Mar 2026 00:00:00 GMT https://shaikahmadnawaz.dev/blog/networking-concepts A practical guide to DNS, TCP/UDP, TLS, load balancing, and a troubleshooting workflow for diagnosing network issues in production. Sun, 08 Mar 2026 00:00:00 GMT https://shaikahmadnawaz.dev/blog/linux-troubleshooting A practical incident workflow for diagnosing and fixing production issues on Linux servers - from health checks to root cause analysis. Tue, 03 Mar 2026 00:00:00 GMT https://shaikahmadnawaz.dev/blog/how-internet-works A practical breakdown of what happens when you type a URL - from physical cables and IP addresses to DNS, TCP, HTTP, and why understanding the full request lifecycle matters for debugging production. Sat, 28 Feb 2026 00:00:00 GMT https://shaikahmadnawaz.dev/blog/yaad Voice first medicine reminders for India. Just speak in your language - Hindi, Telugu, Tamil, or any Indian language - and never miss a dose again. Thu, 12 Feb 2026 00:00:00 GMT https://shaikahmadnawaz.dev/blog/transformer Understanding the Transformer architecture - the foundation of modern LLMs like ChatGPT and GPT-4. Fri, 30 Jan 2026 00:00:00 GMT https://shaikahmadnawaz.dev/blog/linear-combinations-span-basis Understanding how vectors combine, what they can reach, and the special vectors that define coordinate systems. Sun, 25 Jan 2026 00:00:00 GMT https://shaikahmadnawaz.dev/blog/linear-transformations-matrices How matrices describe transformations of space, from rotations to shears, explained visually. Sun, 25 Jan 2026 00:00:00 GMT https://shaikahmadnawaz.dev/blog/vectors Understanding vectors - the building blocks of linear algebra. Arrows, coordinates, and operations explained simply. Sat, 24 Jan 2026 00:00:00 GMT https://shaikahmadnawaz.dev/blog/ml-lifecycle A complete walkthrough of every stage in the ML lifecycle - from defining the problem to monitoring in production - and what actually happens at each step. Fri, 09 Jan 2026 00:00:00 GMT https://shaikahmadnawaz.dev/blog/what-is-mlops MLOps is DevOps for machine learning - the practices that take a model from a notebook to production and keep it running reliably. Thu, 08 Jan 2026 00:00:00 GMT https://shaikahmadnawaz.dev/blog/how-to-build-ml-model A step-by-step guide to building your first machine learning model, from raw data to making predictions. Wed, 07 Jan 2026 00:00:00 GMT https://shaikahmadnawaz.dev/blog/what-is-ml-and-models A beginner-friendly guide to what Machine Learning is and what we mean by a 'model'. Tue, 06 Jan 2026 00:00:00 GMT