Marcio Cunha

Technical Articles

Practical articles, in-depth tutorials, and architectural insights on software engineering, AI, and systems.

All categoriesArquiteturaAutomaçãoBackendCarreiraDevOpsEletrônicaEngenhariaFrontendHardwareIANegóciosProdutividadeRedes
DevOpsArquitetura•5 min

Building Standardized Development Environments in Containers with Docker Compose

Learn how to structure identical development environments across your entire team using Docker Compose and optimized volumes for maximum I/O performance.

DevOpsRedes•4 min

Building Isolated Multi-Tenant Systems with Namespaces and Restrictive Network Policies in Kubernetes Environments

Learn how to isolate workloads in Kubernetes using logical namespaces and restrictive network traffic rules to ensure security in shared environments.

RedesDevOps•3 min

Dynamic Routing Architecture in Overlay Networks with WireGuard Tunneling at Global Scale

Learn how to build robust global overlay networks combining dynamic routing protocols like BGP with the cryptographic simplicity of WireGuard to eliminate latency bottlenecks.

DevOpsArquitetura•4 min

Infrastructure Governance with Static Security Policy Validation Using Rego

Learn how to apply automated governance to infrastructure code using Rego and Open Policy Agent, ensuring compliance before provisioning.

RedesDevOps•4 min

Mitigating DNS Water Torture Attacks on Recursive Resolvers Using eBPF-Based Filtering

Learn how to block denial-of-service attacks on DNS servers by using eBPF to filter malicious requests directly within the operating system kernel.

HardwareDevOps•4 min

Thermal Management and Load Monitoring in On-Premise Hardware Clusters for Stress Testing Labs

Explore practical engineering strategies to control temperature and monitor electrical power in local clusters dedicated to stress testing and hardware validation under maximum load.

ProdutividadeDevOps•3 min

Internal Productivity Engineering Frameworks for Pull Request Lead Time Reduction

Learn how to build internal engineering productivity frameworks to accelerate code reviews and reduce pull request lead time at scale.

DevOpsArquitetura•5 min

Multi-Cloud Workflow Orchestration Using Custom Resource Definitions in Kubernetes

Learn how to unify data pipelines and infrastructure execution across multiple cloud providers using Kubernetes as a universal control plane through Custom Resource Definitions.

RedesDevOps•5 min

BGP Anycast Routing for Global Load Balancing in High-Scale Infrastructures

Learn how BGP Anycast routing distributes traffic globally, reducing latency and increasing the resilience of large-scale content delivery networks and web services.

ArquiteturaDevOps•5 min

Attribute Based Access Control Implementation with Open Policy Agent in Kubernetes Environments

Learn how to integrate Open Policy Agent to centrally manage attribute-based access control and governance rules across Kubernetes clusters.