Lei Xia

IRSA vs. EC2 IAM:Usage Scenarios and Permission Management Practices

March 25, 2025 · 724 words · 4 min

In AWS environments, assigning permissions to workloads is critical for security and functionality. For applications running on EC2 or EKS, two common approaches are EC2 IAM Instance Roles and IRSA (IAM Roles for Service Accounts). This article explains what they are, their differences, usage scenarios with code examples, and common issues with solutions, helping the team choose the right authentication method and avoid permission confusion.

Principles Of Microservice Architecture

February 13, 2025 · 3289 words · 16 min

The microservices architecture is a method of building complex applications as a collection of small services, where each service runs in its own independent process and is typically built around specific business capabilities. These services communicate through well-defined APIs, often HTTP RESTful APIs or lightweight messaging systems. When designing a microservices architecture, it is crucial to follow a series of core principles to ensure the maintainability, scalability, and flexibility of the system.

The Evolution Of Service Architecture

February 12, 2025 · 1820 words · 9 min

In the long history of software engineering, service architecture has evolved from monolithic applications to Service-Oriented Architecture (SOA), and then to microservices architecture.

OpenTelemetry Getting Started Guide

December 2, 2024 · 636 words · 3 min

Three Pillars of Observability In modern distributed systems, observability is crucial for ensuring system health and performance.

Build a weather query agent

August 22, 2024 · 1078 words · 6 min

In the field of artificial intelligence, intelligent agents (Agent) are one of the cutting-edge applications of Large Language Models (LLM).

Understanding the "Temperature" of Large Language Models

August 20, 2024 · 539 words · 3 min

In the realm of artificial intelligence, large language models (LLMs) have become sophisticated tools for generating human-like text. A pivotal concept in steering these models is the “temperature,” which dictates the randomness and creativity of the generated text. This blog post aims to demystify the temperature setting in LLMs and provide a professional overview.

Build Your AI Search Bot with LLM and Search Engines

August 15, 2024 · 938 words · 5 min

In the tide of artificial intelligence, the combination of large language models (LLMs) and search engines has brought revolutionary changes to the field of information retrieval. This article will provide a detailed introduction on how to use these technologies to build an intelligent information retrieval assistant—an AI search bot. We will delve into various aspects such as project background, core principles, code implementation, usage examples, and open-source addresses.

A Comprehensive Overview of The Oauth2.0 Framework

July 28, 2024 · 1391 words · 7 min

OAuth is an authorization approache that simplifies the authorization processes for applications. Manyones may know about Authorization Code Flow, but there are still other approaches. In this article, we’ll learn how it works, covering authorization types, principles and notes.

Use RAG to build your private knowledge base based on llama3 and langchain!

April 28, 2024 · 806 words · 4 min

LLM has timeliness and phantom problems, in How to solve the problem of large model timeliness and accuracy with? the core principle of RAG technology article I introduced the core principle of RAG, this article will share how to build a local private knowledge base based on llama3 and langchain.

Retrieval-Augmented Generation

April 24, 2024 · 759 words · 4 min

In the era of information explosion, we are faced with the challenge of vast amounts of data. Retrieving useful information from this data is becoming increasingly difficult for people. To address this issue, researchers have proposed a novel technology called RAG (Retrieval-Augmented Generation).

RAG combines the methods of retrieval and generation to make information extraction from large-scale data more efficient and accurate.

This article will introduce the definition, working principle, and problems addressed by RAG.