近期在一个 Webinar 分享了如何在 AWS 上服务去中心化研发团队构建共享服务平台，核心观点总结如下，

AWS架构的完善(AWS Well-Architected)框架涉及了五大支柱， 其中可靠性支柱要求侧重于确保工作负载在预期的时间内正确、一致地执行其预期功能。 这要求应用程序系统具备弹性设计，可从故障中快速恢复，以便满足业务和客户需求。 然而设计、开发、且验证具备弹性设计的应用程序，对经验和实践能力都有很高的要求。 利用成熟的经验和良好的工具将加快构建符合预期的弹性应用程序。

混沌工程是一种帮助系统满足弹性需求的技术，它起源于Netflix的工程实践，著名的猴子军团。

AWS一直提倡架构的完善(AWS Well-Architected)，混沌工程正是卓越运营和可靠性支柱的实践。 因此在 re:Invent 2020 AWS发布了Fault Injection Simulator服务来简化开发者在AWS上的混动工程实践。

I met a case to mirror existing Helm charts to another repository. It might be caused by network availability or compliance requirements.

There are multiple ways to host a Helm repository, for example, Nexus OSS Repository, Github Pages, AWS ECR and so on.

Amazon Elastic Container Registry (Amazon ECR) is a fully …

Amazon Neptune is a managed Graph database on AWS, whose compute and storage is decoupled like Amazon Aurora. Neptune leverages popular open-source APIs such as Gremlin and SPARQL, and easily migrate existing applications.

Last year I shared the production-ready, cloud native solution to deploy Sonatype Nexus Repository OSS on AWS.

本方案的起因是，一个源代码托管在Github上的项目fix一个重要的bug后，在AWS上的持续部署流水线一直失败。分析日志后，发现流水线中的数个步骤需要克隆源代码，但是访问Github的网络非常不稳定，这数个流水线任务持续因连接超时，连接拒绝等网络错误而失败。而流水线任务大量使用了CodeBuild, Lambda等AWS托管服务，无法为执行环境配置可靠的网络连接。

Infrastructure as Code is the trend to manage the resources of application. AWS CloudFormation is the managed serive offering the IaC capability on AWS since 2011. CloudFormation uses the declarative language to manage your AWS resources with the style what you get is what you declare.

However there are cons of …

AWS CDK是编排部署AWS云上资源最佳的工具之一。基于AWS CDK的应用应该如何实践DevOps持续集成和部署呢？

通常我们有下面几种方法，

Sonatype Nexus repository OSS is an artifact repository that supports most software repositories such as Maven, Pypi, Npmjs, Rubygems, Yum, Apt, Docker registry and etc. In the enterprise Nexus repository is widely used for storing proprietary artifacts and caching the artifacts for speeding up the devops.