Jamie's Blog

The curious developer's ODYSSEY, Exploring the Universe of TECH, CODE & AI.

The Complete Guide to Building Agentic AI Systems: From Basics to Production

Master the art of building production-ready agentic AI systems with reflection patterns, tool use, planning, and multi-agent collaboration. A comprehensive guide covering evaluation strategies, error analysis, and optimization techniques.

Posted by Jamie Zhang on Thursday, December 11, 2025

LangChain 1.x Architecture Guide for Tech Leads and Solution Architects

A Production-Ready Blueprint for Building Enterprise AI Agent Solutions.

Posted by Jamie Zhang on Monday, December 8, 2025

Learning Notes: Fine-Tuning Transformer Models

A beginner-friendly guide to fine-tuning transformer models, including practical steps, tips, and common pitfalls.

Posted by Jamie Zhang on Tuesday, September 2, 2025

Understanding Transformer Architecture: The Foundation of Modern AI

A Comprehensive Guide to Attention Mechanisms and How They Power LLMs Like GPT

Learn how Transformer architecture works with clear explanations and visual diagrams. Understand the core concepts behind modern AI models like GPT-4 and GPT-5.

Posted by Jamie Zhang on Sunday, August 31, 2025

Run LLM on Intel Iris Xe GPU Using IEPX-LLM + Ollama

For windows demostration only.

Posted by Jamie Zhang on Saturday, June 15, 2024

CKA & important operation commands

Passed CKA exam last Sat, would like to summarize the useful commands for future reference.

Complains about the CKA exam:
The CKA exam environment was changed from Terminal to Remote Desktop(VNC) from Last Jun, this is an absolutely shit
decision. The huge lagging causes that large amount of candidate’s time-wasting on always-waiting, and also Mouse is nearly useless - very difficult to locate what you want on Firefox browser, and eventually it highlights the good user experience on the k8s built-in documentation - Kubectl explain, how ridiculous it is !!!

Posted by Jamie Zhang on Monday, May 29, 2023

Explore Kubernetes Local PV & PVC access mode

A local volume represents a mounted local storage device such as a disk, partition or directory. Local volumes can only be used as a statically created PersistentVolume. Dynamic provisioning is not supported.

Posted by Jamie Zhang on Saturday, April 8, 2023

Vault Agent with Kubernetes

Nearly all requests to Vault must be accompanied by an authentication token. This includes all API requests, as well as via the Vault CLI and other libraries, therefore application running in kubernetes is no exception. Luckily, Vault provides Kubernetes auth method to authenticate the clients using a Kubernetes Service Account Token, and Vault Agent which could be leveraged to automatically inject the secrets from vault into kubernetes pods through init container pattern.

Posted by Jamie on Sunday, March 26, 2023

Vault on Kubernetes

Install Vault on K8S with integrated storage via Helm

To setup a HA Vault Cluster in Kubernetes

Posted by Jamie on Saturday, March 25, 2023

Redis advance III

Redis basic knowledge - Redis cluster - Part I

Redis 集群

Posted by Jamie Zhang on Saturday, July 9, 2022

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Senior Software Engineer, Open source enthusiast, PMP, Scrum master

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