aws-networking

Virtual Private Network (VPC)

Within a region, you can create multiple Amazon VPCs, and each Amazon VPC is logically isolated even if it shares its IP address space.

Debug Javascript/TypeScript

JavaScript/TypeScript Debugging

Node.js 6.3 introduced the “inspect” and “inspect-brk” CLI arguments that make node to listen via WebSockets for diagnostic commands as defined by the Chrome Debugging Protocol.

Node.js Production Practices

Development

TypeScript

Installation and IDE support

npm install -g typescript

tsc -v

tsc main.ts

tsc *.ts --watch

ts-node server.ts

VSC has built-in support of TypeScript.

Online tool

Template Project

AWS Security

AWS Identity and Access Management (IAM)

IAM is a powerful service that allows you to control how people and programs are allowed to manipulate your AWS infrastructure.

AWS

Overview

hyperledger-overview

Hyperledger Fabric 是 IBM 贡献给 Linux 基金会的商用分布式账本系统，自项目创立伊始就吸引了金融、银行、互联网、传统行业领域的巨头们的眼光。

Hyperledger Fabric 是基于 Golang 实现的可插拔的区块链系统，它主要面向企业之间或者企业多个部门之间提供服务。

kubectl

Frequently Used Commands

cd ~/workspace/infrastructure-kubernetes-client-config
./cluster.sh development

Kubernetes Internals

Cluster

A cluster is a set of physical or virtual machines (or both) combined with other infrastructure resources used by Kubernetes to run your applications.

kubectl cluster-info

Kubernetes Architectural Overview
Kubernetes Architecture

Kubernetes Advanced

Service Discovery

Kubernetes 里服务发现有多种方式：

通过环境变量注入发现服务。
当 Pods 在集群的 Node 中运行时，Kubernetes 会为它增加一些列的环境变量。
通过 Kubernetes DNS 服务器。
Kubernetes DNS 服务器会订阅 Kubernetes API创建 Service 的事件，并且为每个 Service 记录一个 DNS 的记录。这样做的好处是：只要 DNS 服务在集群里有访问权限，那么所有的 Pods 都能访问新注册的 Service。举例：如果你有一个 Service 在 Kubernetes Namespace “my-ns”下，名字叫做叫 “my-service”，那么一条叫做”my-service.my-ns”的记录就会被创建。所有在”my-ns” Namespace 里的 Pods 都能通过 DNS 查找到”my-service”。