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Achievement: Pair Extraordinairex4Achievement: Pull Sharkx4Achievement: QuickdrawAchievement: YOLOAchievement: Arctic Code Vault Contributor

Achievements

Achievement: Pair Extraordinairex4Achievement: Pull Sharkx4Achievement: QuickdrawAchievement: YOLOAchievement: Arctic Code Vault Contributor

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dcotelo/README.md

Typing SVG

dcotelo.dev LinkedIn me@dcotelo.dev

I build tools that make infrastructure and security work visible and safe — from Helm upgrade risk to hands-on security training, from CI/CD workflows to the credentials on your own machine.

I write about platform engineering, Kubernetes, and cloud security at dcotelo.dev (RSS).

Featured Projects

owasp-ctf — self-hosted OWASP CTF kit cprof — per-repository Claude account switching

ChartImpact — Helm chart diff with risk assessment gitprofile — multiple git identities, one command

Actions Workflow Editor — visualize GitHub Actions workflows cli-mfa-keychain — TOTP from the terminal, seeds in macOS Keychain

🛡️ owasp-ctf docs · 🗺️ Actions live demo · More tools: github-notifications-streamdeck · tf-version-reviewer · aws-secret-dbdriver

Stack

Stack

Helm ArgoCD Datadog

Full stack details
Area Technologies
Languages Go, TypeScript, Bash, Python, PHP
Cloud AWS (EKS, IAM, VPC, DynamoDB, Route53, KMS, S3, CDK, Secrets Manager)
Kubernetes EKS, EKS Auto Mode, Karpenter, Helm, Kustomize
GitOps / CI ArgoCD, GitHub Actions, OIDC-based auth
IaC Terraform, Terraform Cloud, AWS CDK
Frontend Next.js, React, Monaco Editor
Observability Datadog, Grafana, SLOs
Security IAM least privilege, CodeQL, OpenSSF Scorecard, OIDC

Focus

  • Kubernetes & AWS — EKS (including Auto Mode & Karpenter), GitOps with ArgoCD and Helm
  • Cloud security — IAM least privilege, OIDC-based CI/CD, secure-coding education through CTFs
  • Platform tooling — Terraform modules and CI/CD patterns that reduce cognitive load
  • Reliability — metrics, SLOs, and runbooks written for tired humans

Profile Details

GitHub Stats Top Languages

Building tools that make infrastructure visible, upgrades safe, and on-call less painful.

Blog LinkedIn

Popular repositories Loading

  1. cprof cprof Public

    Per-repository Claude account switching: keep personal and work subscriptions separate.

    Shell 5 1

  2. ChartImpact ChartImpact Public

    TypeScript 4

  3. actions actions Public

    Github actions editor

    JavaScript 3

  4. cli-mfa-keychain cli-mfa-keychain Public

    Simple way to generate MFA codes in CLI while keeping the seed in MacOs keychain

    Shell 1

  5. WebGoat-ctf WebGoat-ctf Public

    WebGoat is a deliberately insecure application

    JavaScript 1

  6. aws-secret-dbdriver aws-secret-dbdriver Public

    Consume AWS Secrets in runtime for database access

    PHP