devops/automation/github-actions on /home/fel1x

Talos on Proxmox – Hybrid Kubernetes with AWS Burst Workers

xuanphuc.a1gv@gmail.com (Felix Hoang) — Sun, 30 Aug 2026 00:00:00 +0000

This project automates independent development and production Talos Kubernetes environments on Proxmox using OpenTofu and GitHub Actions, with optional stateless AWS workers connected through KubeSpan. Each cluster runs its own Argo CD for GitOps application management, while Doppler and External Secrets supply credentials and persistent workloads stay on Proxmox.

Refurbished Marketplace – Distributed Go Microservices

xuanphuc.a1gv@gmail.com (Felix Hoang) — Sun, 29 Mar 2026 00:00:00 +0000

This project explores distributed Go microservices through a refurbished-goods marketplace, with a server-rendered storefront, catalog search, inventory reservations, and merchant-scoped checkout. It combines gRPC APIs, Kafka and Debezium messaging, a durable checkout saga, and Argo CD deployments on Talos Kubernetes with Istio ambient mTLS and OpenTelemetry observability.

Vault (Part 2): Secure On-Prem Automation with Ephemeral Runners and Tailscale

xuanphuc.a1gv@gmail.com (Felix Hoang) — Mon, 17 Nov 2025 00:00:00 +0000

This is Part 2 of the Hashicorp Vault series. Part 1 covered bootstrapping and configuring HashiCorp Vault (the one-time terraform-admin work) and the design goals for Zero Trust secrets management.

Scalable Real-Time Credit Card Fraud Detection System

xuanphuc.a1gv@gmail.com (Felix Hoang) — Thu, 06 Nov 2025 00:00:00 +0000

This repository contains a complete end-to-end system for real-time credit card fraud detection, including data analysis notebooks, a machine learning API, and infrastructure-as-code for cloud deployment. The system is designed with a modern, observable, and scalable architecture.