October 2021
Beginner to intermediate
250 pages
7h 11m
Chinese
Content preview from 微服务与事件驱动架构
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218
｜
第
16
章
证构建是否已准备好进行部署。然而，部署本身并不是自动化的，需要服务所有者一方进
行一些人工干预。
持续部署
是构建的自动化部署。在一个端到端的持续部署流程中，提交的代码变更通过持
续集成管道传播，到达一个可交付状态，然后根据部署配置自动部署到生产环境。这有助
于时间紧张的开发迭代，因为提交的变更可以很快进入生产环境。
图
16-1
展示了持续交付和持续部署之间区别的持续集成管道。
1) 提交代码
2) 单元测试
和集成测试
3) 部署前
验证
4) 部署
5) 部署后
验证
持续交付：人工部署
持续部署：自动化部署
图 16-1：展示持续交付和持续部署之间区别的持续集成管道
持续部署在实践中是很难的。有状态的服务特别有挑战性，因为部署可能需
要重建状态存储及再处理事件流，这对依赖服务尤其具有干扰性。
16.2.2
CMS
和商业硬件
CMS
提供了管理、部署和控制容器化应用程序资源的方法（参见
2.9.3
节）。在持续集成
过程中构建的容器被存放到容器库中，在那里它等待
CMS
的
部署指示。持续集成管道和
CMS
之间的集成对于流水化部署过程至关重要
，如第
2
章所述，大部分领先的
CMS
供应
商提供了这个功能。
商业硬件通常用于部署事件驱动型微服务，因为它价格便宜、性能可靠，并且支持服务的
水平伸缩。可以根据需要在资源池中添加和删除硬件，而恢复故障实例只需要将发生故障
的微服务实例重新部署到新硬件。虽然你的微服务实现可能会不同，但事件驱动型微服务
不需要操作任何特殊的硬件。如果真的需要操作，可以将专门的资源分配到它们自己的独
立池中，这样就可以相应地部署相关的微服务了。这样的例子包括用于缓存目的的内存密 ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.