kubernetes on /home/fel1x

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 4): Dynamic Secrets for Kubernetes Pods with External Secrets Operator

xuanphuc.a1gv@gmail.com (Felix Hoang) — Mon, 24 Nov 2025 00:00:00 +0000

This is Part 4 of the Hashicorp Vault series. In Part 1, we bootstrapped Vault. In Part 2, we built our CI/CD pipeline. In Part 3, we finally killed the static kubeconfig.

Vault (Part 3): Secure Kubernetes Authentication with HashiCorp Vault OIDC

xuanphuc.a1gv@gmail.com (Felix Hoang) — Sun, 23 Nov 2025 00:00:00 +0000

This is Part 3 of the Hashicorp Vault series. In Part 1, we bootstrapped Vault. In Part 2, we built the full CI/CD pipeline. Now, we’re solving the final, massive headache: getting secure, dynamic kubectl access.

On-Premise 101 (Part 5): From Terraform VMs to a K8s Cluster with Ansible

xuanphuc.a1gv@gmail.com (Felix Hoang) — Tue, 11 Nov 2025 00:00:00 +0000

People are often scared to learn Kubernetes because it’s difficult to set up an environment to play around with. Sure, you can use a project like minikube to learn on your own, but running it on your laptop seems limited, and you may not get to experience all the awesome features Kubernetes offers (remember, it was born for high availability). Or, if you have money, you can use a managed Kubernetes cluster from one of the cloud providers. Often, they’ve abstracted away so many things under the hood that you only need to learn kubectl and you’re good to go.

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.

Automate provisioning Kubernetes cluster on Proxmox with Terraform + Ansible

xuanphuc.a1gv@gmail.com (Felix Hoang) — Sat, 31 May 2025 00:00:00 +0000

This project automates the provisioning and configuration of a RKE2 Kubernetes cluster on Proxmox using Terraform and Ansible.