Cloud Computing and Cloud Architecture

Cloud computing has fundamentally transformed how modern applications are designed, deployed, and operated. This collection examines the practical aspects of building and running systems in cloud environments, including major platforms like Microsoft Azure, Amazon Web Services, and hybrid cloud scenarios that combine on-premises and cloud infrastructure.

The articles cover cloud-native architecture patterns, infrastructure as code, containerization, serverless computing, and the operational challenges teams face when migrating to or optimizing cloud workloads. Topics include cost management, security considerations, resilience patterns, and the trade-offs inherent in different cloud service models from IaaS to PaaS and SaaS.

Rather than focusing on vendor-specific features in isolation, the content explores how cloud technologies integrate into real-world development workflows, DevOps practices, and the broader software delivery pipeline. The emphasis remains on practical decision-making that considers both technical capabilities and organizational constraints.

AKS at Scale: Hard-Won Lessons from 1000+ Node Clusters

Running AKS at 1,000+ nodes exposes hard limits in etcd, networking, observability, and cost that never appear in vendor documentation. This article shares operational lessons from mega-cluster deployments: where the scaling cliffs are and how to plan around them before production outages force your hand.

Why Your Azure Portal Clicks Will Fail the Next Audit

Manual portal configuration creates audit nightmares. When auditors ask “Show me your change control process,” clicking through Azure Activity Logs won’t save you. Here’s how Bicep turns infrastructure into auditable code—where Git history becomes your compliance evidence and pull requests become your approval workflow.

Hybrid AKS: Bridging Cloud and On-Prem with Azure Arc

Most organizations run Kubernetes across cloud and on-prem simultaneously. This article covers practical patterns for hybrid AKS: ExpressRoute and VPN connectivity, Azure Arc for unified management, consistent policy enforcement, DNS resolution, and identity federation without duplicating systems.

Your Azure SQL Backups Won't Save You (Here's Why)

“We have backups” is the IT equivalent of “thoughts and prayers.” Comforting words that mean nothing when disaster strikes. I’ve watched teams discover their Azure SQL Database backups expired just before an audit, or worse, during an actual outage. The default seven-day retention feels generous until you need data from day eight.

Compliance standards demand information backup in cloud environments, but no standard can enforce what most teams ignore: actually testing those backups. The gap between “we configured backups” and “we can restore our data” has ended careers and companies. This isn’t about checking compliance boxes. It’s about whether your business survives the next outage.

AKS Disaster Recovery: Why Your Untested Backup Will Fail

Your cluster will fail. The question is not if, but when, and whether you can recover before customers notice. Most organizations discover their backup strategy does not work during an actual outage, when recovery time matters most and manual heroics cannot save you.

If you run Azure Kubernetes Service (AKS) in production, you need a recovery plan that engineers can execute half asleep at 2 AM. We will go through what to back up, how Velero works in day-to-day operations, when Azure Backup for AKS is enough, and how to design realistic failover with measurable Recovery Time Objective (RTO) and Recovery Point Objective (RPO).

The goal is simple: repeatable recovery procedures you have already tested, not a document that looks good in Confluence but fails during an incident.

Container Registry & Image Security in AKS Deployments

Securing Azure Container Registry for AKS needs more than a single control. This guide walks through a production-ready sequence: vulnerability scanning, image signing, RBAC, private endpoints, policy enforcement, and geo-replication. You get practical Terraform, Kubernetes, and pipeline patterns, plus clear trade-offs for real-world operations.

Your TLS Config is Probably Wrong: Five Audit Failures I Keep Finding

Production systems with HTTP endpoints wide open and TLS 1.0 enabled for backward compatibility that died in 2020 are still everywhere. If auditors haven’t flagged your encryption config yet, they will. This guide shows the fatal configurations that fail security audits and the Azure Front Door patterns that actually pass.

Multi-AKS Cluster Networking & Hub-Spoke Topology

Running more than one AKS cluster changes networking from a setup task into an operating model. This guide covers practical connectivity patterns, hub-spoke routing, cross-cluster DNS, ingress options, and decision criteria that help teams scale safely without adding complexity too early.

Observability in AKS CNI Overlay: When Pod IPs Hide Behind Nodes

CNI Overlay masks pod IPs behind node IPs through SNAT, breaking traditional observability. Network logs show nodes, application logs show pods. Without Container Insights, correlation IDs, and distributed tracing, you’re debugging blind. SNAT port exhaustion mimics network failures, and timestamp-based correlation is fragile. The cost of proper monitoring is trivial compared to debugging outbound connectivity at 3 AM without visibility.

Your Azure SQL Is Public Right Now. ISO 27017 Demands You Fix It

That SQL Server you deployed last week? Publicly accessible. That Storage Account? Same story. Azure defaults are security theater. ISO 27017 calls this a compliance violation, and your next audit will too. Stop trusting “cloud-native” to mean “secure” and start implementing VNets, Private Endpoints, and NSGs before your data becomes someone else’s problem.

AKS Cost Optimization: Resource Governance That Actually Works

AKS costs are brutally simple: node sizing, pod density, workload sprawl, and reserved capacity. If you don’t have visibility and governance, your cloud bill will punch you in the face—usually when it’s too late to react without pain. I’ve watched teams scramble to cut costs after the invoice lands, breaking production in the process. This guide is for practitioners who want to avoid that mess. No theory, no vendor fluff: just what actually works to keep AKS costs under control without sacrificing reliability.

Storage Architecture & Stateful Workloads in AKS

Stateful workloads in Kubernetes require understanding PersistentVolume architecture, Azure storage trade-offs, and backup strategies. This article covers PVC/PV patterns, Azure Disk vs Files performance profiles, Velero backup configurations, and multi-cluster replication patterns based on production experience.