"Sidecar"指的是Kubernetes容器中的容器 [英] "Sidecar" containers in Kubernetes pods

问题描述

我想要一个包含两个组件的多容器吊舱:

I'd like a multi-container pod with a couple of components:

• 包含构建作业的主"容器
• 一个"sidecar"容器，其中包含一个HTTP代理，由"main"容器使用

这似乎很符合Pod的设计理念，如中所述Kubernetes文档，但我相信，只要运行"sidecar"，吊舱就会保持活动状态.就我而言，主"容器不是长期存在的.退出后，小车"应终止.

This seems to fit well with the pod design philosophy as described in the Kubernetes documentation, but I believe so long as the "sidecar" runs, the pod is kept alive. In my case, the "main" container is not long-lived; once it exits, the "sidecar" should be terminated.

我该如何实现?

推荐答案

只要其中一个容器正在运行，pod就会运行.如果您需要它们一起退出，则必须安排边车死亡.我们没有生命周期的主要"容器与次要"容器的概念，尽管这很有趣.

A pod is running as long as one of the containers is running. If you need them to exit together, you have to arrange that the sidecar dies. We do not have a notion of "primary" vs "secondary" containers wrt lifecycle, though that's sort of interesting.

一种选择是使用emptyDir卷并编写一个文件，告诉Sidecar该走了".边车在看到该文件时将退出.

One option would be to use an emptyDir volume and write a file telling the sidecar "time to go". The sidecar would exit when it sees that file.

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