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urifallon/README.md

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👋 Hello, I'm Uri.

DevOps Engineer & Infrastructure Builder based in Vietnam.

I build reliable systems, automate repetitive tasks, and turn complex infrastructure into manageable code.


👨‍💻 About Me

My journey started in the blockchain space as a Validator and Node Runner, where I learned the importance of uptime and security. However, I realized my true passion wasn't just maintaining nodes, but architecting the underlying infrastructure that makes them run efficiently.

Today, I have fully transitioned into DevOps and System Engineering. I specialize in designing on-premise virtualization clusters, managing distributed databases, and implementing Infrastructure as Code (IaC). I don't just use tools; I focus on why a tool is needed and how to integrate it seamlessly into a production-grade environment.


🚀 What I Do

Here is how I approach technology and problem-solving:

  • Virtualization & Orchestration I treat hardware as a flexible resource. My expertise lies in configuring Proxmox VE and VMware ESXi to create highly available virtual environments. I am also deeply involved in containerization strategies using Docker and Kubernetes to ensure applications are portable and scalable.

  • Data Reliability & Storage Data is the core of any operation. I have hands-on experience deploying Apache Cassandra in Multi-Datacenter simulations to understand eventual consistency and replication strategies. Additionally, I manage enterprise-grade storage solutions like Synology NAS (RAID 6) to ensure robust backup and disaster recovery plans.

  • Automation & Consistency If I have to do it twice, I automate it. I use Ansible for configuration management and Terraform for provisioning. Recently, I've been optimizing VM deployment pipelines using Cloud-init, reducing setup time from hours to minutes.


🛠 The Toolbox

My preferred stack for building and managing infrastructure:

Domain Technologies
Operating Systems Linux (Ubuntu, CentOS), Windows Server (PowerShell expert)
Virtualization Proxmox VE, VMware ESXi, KVM
Containerization Docker, Kubernetes (K8s), LXC
Databases Apache Cassandra (Multi-DC), MariaDB MaxScale, MySQL
IaC & Config Ansible, Terraform, Cloud-init, Bash, YAML
Networking pfSense, Tailscale, Cloudflare Tunnels, Nginx
Hardware Synology RackStation, Enterprise Servers

⚡ The "Home Lab" Philosophy

I believe the best way to learn is by breaking things safely. I maintain a sophisticated Home Lab that mimics a Tier-3 Data Center environment.

  • Current Setup: A hybrid network of Proxmox nodes and Synology storage, segmented by VLANs.
  • The Goal: To simulate real-world scenarios—failover, latency handling, and load balancing—before applying them to production systems.
  • Recent Achievement: Successfully architected a local cloud environment where VMs are auto-provisioned and instantly connected to a central monitoring stack.

📚 Current Focus

I am currently compiling a comprehensive DevOps Knowledge Base. This is a structured documentation project where I record:

  1. Complex lab scenarios (e.g., replicating Cassandra across subnets).
  2. Troubleshooting logs for obscure Linux/Windows errors.
  3. Best practices for securing internal networks.

Pinned Loading

  1. VMware-vSphere-Labs VMware-vSphere-Labs Public

    📘 vSphere Scalability Lab Guide (Hướng dẫn Lab về Khả năng Mở rộng của vSphere), là một bộ tài liệu lab và hướng dẫn chi tiết về cấu trúc và các thành phần chính của môi trường ảo hóa VMware vSphere.

    1