managing-infra

julianobarbosa's avatarfrom julianobarbosa

Infrastructure patterns for Kubernetes, Terraform, Helm, Kustomize, and GitHub Actions. Use when making K8s architectural decisions, choosing between Helm vs Kustomize, structuring Terraform modules, writing CI/CD workflows, or applying security best practices.

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When & Why to Use This Skill

This Claude skill provides expert-level infrastructure patterns and architectural guidance for Kubernetes, Terraform, Helm, Kustomize, and GitHub Actions. It streamlines DevOps workflows by offering proven templates for cloud resource management, CI/CD pipeline automation, and Kubernetes security hardening, ensuring scalable and maintainable Infrastructure as Code (IaC).

Use Cases

  • Architectural Decision Making: Evaluating whether to use Helm or Kustomize based on project complexity and templating requirements.
  • Infrastructure as Code (IaC) Optimization: Structuring Terraform modules for efficient cloud resource lifecycle management and reusability.
  • Security Hardening: Implementing Kubernetes security best practices, including non-root users, read-only filesystems, and least-privilege network policies.
  • CI/CD Pipeline Design: Creating robust GitHub Actions workflows for automated linting, testing, and multi-architecture Docker builds (x86/ARM).
  • Containerization Standards: Utilizing multi-stage Dockerfiles and Makefiles to standardize build automation and local development environments.
namemanaging-infra
descriptionInfrastructure patterns for Kubernetes, Terraform, Helm, Kustomize, and GitHub Actions. Use when making K8s architectural decisions, choosing between Helm vs Kustomize, structuring Terraform modules, writing CI/CD workflows, or applying security best practices.
allowed-toolsRead, Bash, Grep, Glob

Infrastructure Patterns

When to Use What

Tool Use For
Raw K8s YAML Simple deployments, one-off resources
Kustomize Environment variations, overlays without templating
Helm Complex apps, third-party charts, heavy templating
Terraform Cloud resources, infrastructure lifecycle
GitHub Actions CI/CD, automated testing, releases
Makefile Build automation, self-documenting targets
Dockerfile Container builds, multi-stage, multi-arch

Quick Decisions

Kustomize when: Simple env differences, readable manifests, patching YAML Helm when: Complex templating, third-party charts, release management

K8s Security Defaults

Every workload: non-root user, read-only filesystem, no privilege escalation, dropped capabilities, network policies.

GitHub Actions Patterns

  • CI workflow: Lint, test, compile on PRs (run on both x86 + ARM)
  • Release workflow: Multi-arch Docker build on tags (native ARM runners)
  • Pin actions by SHA, least-privilege permissions

References

Commands

kubectl apply -k ./              # Apply kustomize
helm upgrade --install NAME .    # Install/upgrade chart
terraform plan && terraform apply