如何在Dockerfile中定义Docker提交消息 [英] How to define docker commit message in Dockerfile

问题描述

使用 Dockerfile ( docker build )是手动执行 docker commit 的一种替代方法.通过使用 docker commit ，有一个名为-message 的选项，可用于定义提交消息.提交消息显示在 docker history 的专用列中，该列称为 COMMENT .我的问题是:如何在 Dockerfile 中定义docker commit消息?

Using Dockerfile (docker build) is an alternative for doing docker commit by hand. By using docker commit, there is an option named --message, which can be used to define commit messages. Commit messages are displayed in docker history in a dedicated column called COMMENT. My question is: how to define docker commit message in a Dockerfile?

推荐答案

使用 Dockerfile 和 docker build ，您可以创建一个全新的映像.因此，您没有可以用消息注释的任何更改.无法在 Dockerfile 中定义提交消息.

With a Dockerfile and docker build you create a completely new image. Therefore you do not have any changes that can be commented with a message. It is not possible to define a commit message in a Dockerfile.

正如文档指出的那样， docker commit 对于调试目的更为有用.要创建新映像，建议使用 docker build :

As the docs point out docker commit is more useful for debugging purposes. To create a new image, docker build is recommended: https://docs.docker.com/engine/reference/commandline/commit/#extended-description

这是有道理的，因为已提交的图像很难重现，仅提交消息作为更改提示.仅使用Dockerfile总是可以实现可复制的构建.

This makes sense, as committed images are hard to reproduce, with only a commit message as a hint on the changes. Using only a Dockerfile always leads to a reproducable build.

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