Marcio Cunha

Technical Articles

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

All categoriesArquiteturaAutomaçãoBackendCarreiraDevOpsEletrônicaEngenhariaFrontendHardwareIANegóciosProdutividadeRedes
RedesDevOps•3 min

Intra-Cluster Network Traffic Management with L7 Identity-Based Cilium Network Policies

Learn how to secure microservices in Kubernetes using eBPF-powered Layer 7 identity in Cilium for fine-grained HTTP and gRPC traffic inspection and governance.

DevOpsAutomação•5 min

Distributed Load Testing Automation with Locust and Percentile Statistics in Deployment Pipelines

Learn how to integrate distributed load testing with Locust into your deployment pipeline to validate stress behavior and analyze statistical percentiles accurately.

DevOpsArquitetura•5 min

Distributed State Management in Terraform with Concurrency Locking and Domain Backend Separation

Learn how to structure Terraform state in distributed environments, preventing data corruption through remote locks and business domain isolation.

DevOpsArquitetura•4 min

Building Secure Container Images with Attack Surface Minimization Through Distroless Multi-Stage Compilation

Learn how to harden your containerized applications using multi-stage compilation techniques and base distribution-less images. Dramatically reduce vulnerabilities without sacrificing production performance.

DevOpsArquitetura•4 min

Low-Latency Observability with eBPF and OTLP for Production Overhead Reduction

Learn how to monitor high-performance systems without sacrificing performance using kernel-level eBPF collection and OTLP telemetry export.

DevOpsArquitetura•5 min

Implementing GitOps with Flux and Rego Policy Validation in Pipelines

Learn how to combine GitOps with Flux and Rego policy validation in continuous integration pipelines. We guarantee security and consistency in modern infrastructure environments.

DevOpsArquitetura•4 min

Secret Management at Scale with Dynamic Rotation via HashiCorp Vault

Learn how to mitigate corporate credential leaks by using HashiCorp Vault to generate ephemeral accesses and rotate secrets at scale.

HardwareDevOps•4 min

Thermal Management and Power Consumption Profiling in ARM SoC Home Servers

Learn how to monitor and optimize energy consumption and operating temperatures in home servers using ARM SoCs, ensuring maximum efficiency without sacrificing stability.

DevOpsArquitetura•5 min

Feedback Cycle Optimization in Distributed Development Environments with Local Build Caching

Learn how to accelerate feedback loops in distributed engineering teams using smart local and shared build caching strategies, drastically reducing developer wait times.

DevOpsArquitetura•4 min

Implementation of Automated Blue-Green Deployments with Rollback Based on APM Metrics Analysis

Learn how to build zero-downtime deployments using the blue-green strategy integrated with automated APM metrics.