The Vagrant demo file please see my git repo Infratree Introduction Zookeeper quorum architecture, at least 3 nodes cluster setup ...
Golang OOP
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Go
Struct Go 用struct 实现OOP, 匿名字段可看作实现了继承关系，子类也可以重写父类的方法。 Note, there is also exported and unexported fields in struct, the same patte ...
Python3 Package
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Python
最近在做Project的时候发现一个package无法在jump box之外的机器上通过pip安装，后来发现这是一个内部开发的python package， 并且为jump box的pip做了设置，加入了内部的package repo address/cred ...
nc/netcat Command
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Linux
I almost forget this command, but recently I used it as a TCP client to test Envoy TCP proxy. nc can also be a TCP server that lis ...
Design Document Layout
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Soft Skill
Reviewer Sheet Right after the title, list stakeholders in sheet: Username | Role | Status | Last Change | Reviewer ...
Python Concurrency
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Python
这里把Python concurrency的内容单独拿出来整理一下, 主要是multithreading, multiprocessing and asyncio. 根据需要选择适合场景的concurrency pattern, typs of concurr ...
Docker Entrypoint Script
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Docker
I have a post Shell Arguments Format talked about exec "$@" (当时并没有在意为什么在docker中这么使用), the script docker-entrypoint.sh is ...
nologin User
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Linux
Previously I had a post talked about the login and non-login shell, please note that is a different concept with nologin user here ...
Useful Chrome Extensions
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Mac
Some useful Chrome extensions: OneTab: 把多个tabs整理成列表在一个网页中，可分享。 Grammarly for Chrome: 英语语法检查。 SimpleUndoClose: 重新打开关闭的网页。 Screen S ...
Docker Smart Use
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Docker
这里主要记录一下docker container 一些有意思的用法。 Version Release 可以将源码封装到 docker(tag) 或者 helm chart 中，通过check-in pre/post-CI/CD pipeline 发布，然后在 ...