Diogo Mota

DevOps Engineer w/ 4 Years of Experience

I work on Kubernetes platforms deployed on cloud infrastructure (AWS and Azure). Here, I document about EKS clusters, GitOps workflows, Terraform modules, observability stacks from production work, my homelab and private VPS projects.

Diogo Mota

IconLatest Posts

Technical notes from production work and personal infrastructure projects.
✨ New
How to Manage Secrets in Terraform
Kubernetes Node Selector vs Node Affinity vs Pod Affinity vs Taints & Tolerations
How to Set Up a Wildcard SSL Certificate with Lets Encrypt and Nginx
How to Create an AWS VPC with Terraform
How to Use AWS Secrets Manager with Kubernetes (EKS)
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IconDeep Dives

End-to-end guides built with high detail from past projects.
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Steps to Build a Personal Homelab
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How to Set Up ArgoCD for Production in AWS
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How to Create EKS Cluster with Terraform
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How to Secure Nginx with Let's Encrypt
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Setting up Prometheus, Grafana, and Alertmanager on Ubuntu
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Automating Terraform with GitHub Actions

IconMain Projects

Infrastructure and automation projects: Kubernetes homelabs, AWS CI/CD pipelines, GitOps setups, and the tooling that runs this site.
Personal Home Server (Homelab)
  • Deployed a 3 node Kubernetes cluster on bare metal (3 Raspberry Pi) to replicate a real production environment.
  • Automated application deployment via a GitOps workflow with ArgoCD and Helm Charts.
  • Architected the core networking stack, integrating load balancing (MetalLB), HTTP/HTTPS routing and ingress control (NGINX) and automated TLS management (Cert-Manager).
  • Implemented a monitoring system with Prometheus and Grafana to control the cluster health.
Source: source code
CI/CD setup with AWS, Terraform and Ansible
  • Architected and provisioned scalable AWS infrastructure using Terraform for Infrastructure as Code and Ansible for configuration management.
  • Implemented a multi-stage CI/CD pipeline with Jenkins, triggered via GitHub webhooks, to automate build, test and deployment processes.
  • Containerized applications using Docker for consistent deployment across environments.
Source: source code
Couple Planner (React Web Application)
  • Built a lightweight shared planning web app for couples to manage a private dashboard, partner invitations, calendar items, tasks, dates, trips, recipes and entertainment tracking.
  • Implemented the frontend with React 18 UMD, Babel Standalone, Tailwind CSS CDN, Leaflet and Lucide icons.
  • Built the backend with Vercel Serverless Functions, Vercel Postgres/Neon via @vercel/postgres, JWT authentication, bcryptjs password hashing and optional Resend email flows.
  • Deployed the application on Vercel.
Source: source code
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