Latest Blogs
Tutorials, guides, and insights on DevOps, SRE, and Cloud technologies.
Docker Overlay Networks — Multi-Host Container Communication
Understand Docker overlay networks — how VXLAN enables multi-host container communication, encrypted overlays, service discovery, the ingress network, load balancing, and debugging techniques for production overlay issues.
GitOps with ArgoCD — Kubernetes CI/CD Done Right
Implement GitOps for Kubernetes using ArgoCD. Covers ArgoCD architecture and installation, Application CRD, sync policies, App of Apps pattern, ApplicationSet for multi-cluster, Kustomize and Helm integration, secrets handling with Sealed Secrets, RBAC, and a comparison with Flux.
Linux Troubleshooting Like a Pro — strace, lsof, tcpdump
Master Linux troubleshooting with strace, lsof, tcpdump, and ss. Learn systematic debugging techniques for real production scenarios including hung processes, network failures, and disk issues.
Terraform Module Design Patterns — Composition Over Inheritance
Design Terraform modules that scale across teams — composition patterns, interface design, versioning with Git tags, registry publishing, and the anti-patterns that turn modules into unmaintainable monsters.
AWS Disaster Recovery — RTO, RPO, and the 4 DR Strategies
Learn AWS disaster recovery strategies from backup-and-restore to multi-site active/active. Understand RTO and RPO, cross-region replication for S3, RDS, and DynamoDB, Route 53 failover routing, CloudFormation for DR, and cost comparisons for each strategy.
Microsoft Defender for Cloud — Secure Your Azure Workloads
Protect your Azure environment with Microsoft Defender for Cloud — understand Secure Score, act on security recommendations, enable Defender plans for servers, storage, SQL, containers, and more, configure just-in-time VM access, and manage regulatory compliance.
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