Welcome to Battle-Tested DevOps, a curated portfolio of real-world infrastructure, automation, and security patterns developed and used in production environments.
This repository is not another academic collection of hello-world scripts or contrived examples. Everything here is born from the field—from regulated industries, greenfield cloud migrations, enterprise modernization efforts, and the kind of fire drills you only survive with hardened, repeatable processes.
This repo is a growing collection of:
- Infrastructure-as-Code (Terraform, Pulumi) modules used in production environments.
- CI/CD pipeline templates (GitHub Actions, GitLab CI, Jenkins) designed for compliance and velocity.
- GitOps configurations with ArgoCD and Flux for modern Kubernetes deployments.
- DevSecOps examples integrating tools like Trivy, OPA, and Checkov.
- Secure-by-default Dockerfiles, reverse proxy setups, and hardened base configs.
- Scripts and playbooks for system hardening, monitoring, and incident response.
- Observability patterns using Prometheus, Grafana, Loki, and Alertmanager.
- Incident and recovery playbooks from real-world outage responses.
- Modern AI-assisted engineering practices using local and cloud LLMs.
- Compliance and governance implementation strategies for regulated environments.
- Hiring managers and tech leads evaluating DevOps candidates.
- Engineers looking for solid, no-BS examples to speed up delivery or avoid common mistakes.
- SREs and platform teams building secure, reliable internal platforms.
- Anyone tired of fluff and just wants to see how it’s done in the real world.
| Directory | Description |
|---|---|
cicd/ |
Pipeline templates, build/test/deploy configs |
infra-as-code/ |
Modular Terraform and Pulumi examples for AWS, GCP, Azure |
gitops/ |
ArgoCD/Flux setups for Kubernetes with examples |
security/ |
Static and dynamic analysis, hardening, and policies |
observability/ |
Logging, metrics, dashboards, and alerting patterns |
copa-container-patching/ |
Using Project Copacetic to patch containers without rebuilds |
llm-coding-tools/ |
AI tools like Aider, Cursor, and local LLM usage for DevOps |
compliance-governance/ |
Patterns to support NIST, CIS, and PCI-DSS frameworks |
system-hardening/ |
Scripts and Ansible for OS and service hardening |
playbooks/ |
Incident response, service recovery, and postmortem tools |
docs/ |
Architecture diagrams, how-to guides, and field notes |
In addition to what’s already here, I’m actively building out:
- Terraform modules for:
- EKS with IRSA and fine-grained IAM
- GCP workload identity federation
- Zero Trust patterns using identity-aware proxies
- GitOps end-to-end example: ArgoCD + SealedSecrets + Kustomize
- Secure Docker + NGINX + OIDC reverse proxy (Okta + Vouch Proxy)
- Chaos testing examples using Litmus or Chaos Mesh
- GitHub Actions CI with staging/production gate logic
- Cloud Custodian policies for automated cloud governance
- Copa for container patching without full image rebuilds
- LLM workflows for infrastructure templating and code generation
- Policy-as-code aligned to CIS/NIST/PCI-DSS benchmarks
This collection comes from real-world scenarios—migrations, outages, audits, and firefights—where solutions had to work now, not just look good in theory.
MIT. Use it, fork it, adapt it. If it saves you time, great. If it helps land your next role, even better.
Got a similar repo? Building out a platform? Feel free to fork, open a PR, or drop me a message. I’m always open to sharing knowledge and learning from others in the trenches.