Marcio Cunha

Technical Articles

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

All categoriesArquiteturaAutomaçãoBackendCarreiraDevOpsEletrônicaEngenhariaFrontendHardwareIANegóciosProdutividadeRedes
DevOps•5 min

Implementation of Secure Continuous Delivery Pipelines with Cosign Signature Verification and Tekton

Learn how to build secure software automation workflows using modern tools like Tekton and Cosign. Discover how to ensure that only properly signed code reaches production environments.

RedesDevOps•5 min

Building Multi-Cluster Service Meshes with Cilium and ClusterMesh for Geographic Resilience

Learn how to connect multiple Kubernetes clusters using Cilium ClusterMesh to ensure high availability, global load balancing, and geographic resilience in distributed applications.

DevOpsRedes•3 min

Managing Ephemeral Development Environments with Containers and Isolated Virtual Networks

Learn how to build secure, disposable, and isolated development environments using containers and custom virtual networks to eliminate dependency conflicts.

BackendDevOps•4 min

Static Code Auditing with Custom AST Rules for Preventing Vulnerabilities

Learn how to structure static code audits using custom abstract syntax trees to block recurring security vulnerabilities before deployment.

DevOpsArquitetura•3 min

Orchestrating Zero-Downtime Infrastructure Updates in Kubernetes

Learn how to configure seamless updates in Kubernetes clusters using custom rolling updates. Ensure high availability and operational resilience in production environments.

RedesDevOps•5 min

Layer 3 Security Policy Implementation with Policy-Based Routing in Distributed Corporate Environments

Learn how to architect policy-based routing at Layer 3 to shield distributed corporate networks from malicious traffic and operational bottlenecks.

DevOpsNegócios•3 min

Infrastructure Cost Allocation Based on Business Units Using Tagging Tools and FinOps

Learn how to structure precise cloud infrastructure cost allocation by business units using consistent tagging strategies and FinOps practices to optimize corporate budgets.

HardwareDevOps•5 min

High-Density Storage Server Implementation with SAS Controllers and ZFS in Homelabs

Learn how to design and build a high-density storage server using SAS controllers in IT mode and the ZFS filesystem in your homelab. This comprehensive guide covers hardware selection, expansion topologies, and resilience strategies against data corruption.

DevOpsAutomação•4 min

Operating System Configuration Management with Ansible and Idempotency Validation in Heterogeneous Environments

Learn how to use Ansible to manage heterogeneous operating system configurations, ensuring idempotency and operational consistency across complex infrastructures.

RedesDevOps•6 min

Dynamic Routing Configuration with FRRouting and BGP in Bare-Metal Home Labs

Learn how to build an enterprise-grade network in your own home lab using bare-metal servers and BGP with FRRouting to simulate real carrier and modern data center scenarios.