Jacky Tang's Blog

Istio Sidecar自动注入原理

Kubernetes webhook扩展机制解析

Kubernets 1.9版本引入了Admission Webhook(web 回调)扩展机制,通过Webhook,开发者可以非常灵活地对Kubernets API Server的功能进行扩展,在API Server创建资源时对资源进行验证或者修改。 Istio 0.7版本就利用了Kubernets webhook实现了sidecar的自动注入。

Programming Assignment: Scrooge Coin

Bitcoin and Cryptocurrency Technologies-Week 1

Finally, I got to the most exciting part of week 1 lectures-the programming assignment!

Digital Signature and Public Key as Identities

Bitcoin and Cryptocurrency Technologies-Week 1

Some fundamental cryptographic technologies in Bitcoin: Asymmetic encryption(Public/Private key), Digital Signature, Digital Identity(Public key and Digital Certificate).

Hash Pointers and Data Structures

Bitcoin and Cryptocurrency Technologies-Week 1

Hash pointer is used to bulid some key data structures in cryptocurrency, such as Block chain and Merkel tree.

Cryptographic Hash Function

Bitcoin and Cryptocurrency Technologies-Week 1

Hash function can produce a fixed lenght digest of any size of data, and the original data can not be found out if it's properly used.

Introduction to crypto and cryptocurrencies

Bitcoin and Cryptocurrency Technologies-Week 1

I have noticed the buzzwords “Bitcoin” and “Blockchain” for a while. There are lots of articles, news, and talks around them. It seems that many people believe that cryptocurrency is the future of online payment, some even claim that blockchain would become the fundamental technology of the next generation of the Internet.

Helm介绍

强大的Kubernetes包管理工具

Helm是Kubernetes生态系统中的一个软件包管理工具。本文将介绍为何要使用Helm进行Kubernetes软件包管理,澄清Helm中使用到的相关概念,并通过一个具体的示例学习如何使用Helm打包,分发,安装,升级及回退Kubernetes应用。

Service Mesh 和 API Gateway的关系探讨(译文)

API Gateway和Service Mesh的关系是我最近一直在思考的问题,也和同事及社区的朋友之间进行了一些讨论。这篇短文很清晰地总结了两者之间的相似之处以及这两者在微服务架构中的不同用途。

谈谈微服务架构中的基础设施:Service Mesh与Istio

Service Mesh模式及Istio开源项目介绍

作为一种架构模式,微服务将复杂系统切分为数十乃至上百个小服务,每个服务负责实现一个独立的业务逻辑。这些小服务易于被小型的软件工程师团队所理解和修改,并带来了语言和框架选择灵活性,缩短应用开发上线时间,可根据不同的工作负载和资源要求对服务进行独立缩扩容等优势。另一方面,当应用被拆分为多个微服务进程后,进程内的方法调用变成了了进程间的远程调用。引入了对大量服务的连接、管理和监控的复杂性,本文介绍了Service Mesh模式如何应对微服务架构的这些挑战,以及Service Mesh的明星开源项目Istio。

如何配置docker使用HTTP代理

如何配置docker使用HTTP代理