June 2021
Intermediate to advanced
335 pages
5h 50m
Chinese
Content preview from Kubernetes编程
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184
｜
第
7
章
当你的自定义控制器开发趋于稳定时，就可以且必须开始着手开展各种测试，
包含且不限于如下项目：
• Kubernetes
自身所使用的性能相关测试，以及
kboom
工具，都可以用于
开展性能相关的测试，它们可以给你提供可扩展性和资源占用方面的数据。
•
浸泡测试（就像在
Kubernetes
中所使用的），旨在发现在长期使用（从几
小时到几天）场景下是否存在资源泄漏的问题，例如，是否有文件句柄或
者内存的泄露。
作为最佳实践，这些测试应该是你的
CI
流程的一部分。换句话讲，从一开
始就让构建、测试和打包自定义控制器的流程自动化起来。我们建议你去看
看
Marko Mudrini
ć
这篇优秀的文章“
Spawning Kubernetes Clusters in CI for
Integration and E2E tests
”，里面提供了一个完整的例子。
接下来，我们来看看实现高效问题排查的基础，有关内建可观测性支持的最
佳实践。
7.2.3
自定义控制器和可观测性
在本节中，我们将关注自定义控制器的可观测性，尤其是日志和监控。
7.2.3.1
日志
为了（在生产环境中）更好地定位问题，应该尽可能多打印一些有用的日志。
在基于容器的部署方案中，日志信息通常都直接打印在
stdout
（标准输出）上，
可通过基于单
Pod
形式的
kubectl logs
命令来查看，也可以聚合后再查看。
聚合的方案可以选用各种云提供商所提供的不同方案，例如
Google Cloud
的
Stackdriver
或者
AWS
的
CloudWatch ...
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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.