如何在 Dockerfile 中设置镜像名称? [英] How to set image name in Dockerfile?

问题描述

您可以在构建自定义图像时设置图像名称，如下所示:

You can set image name when building a custom image, like this:

docker build -t dude/man:v2 . # Will be named dude/man:v2

有没有办法在Dockerfile中定义镜像的名字，所以docker build命令中就不用提了?

Is there a way to define the name of the image in Dockerfile, so I don't have to mention it in the docker build command?

推荐答案

Dockerfile 中不支持对图像进行标记.这需要在您的构建命令中完成.作为一种解决方法，您可以使用标识目标映像名称的 docker-compose.yml 进行构建，然后运行 ​​docker-compose build.一个示例 docker-compose.yml 看起来像

Tagging of the image isn't supported inside the Dockerfile. This needs to be done in your build command. As a workaround, you can do the build with a docker-compose.yml that identifies the target image name and then run a docker-compose build. A sample docker-compose.yml would look like

version: '2'

services:
  man:
    build: .
    image: dude/man:v2

也就是说，有人反对使用 compose 进行构建，因为它不适用于 swarm 模式部署.因此，您将重新运行您在问题中给出的命令:

That said, there's a push against doing the build with compose since that doesn't work with swarm mode deploys. So you're back to running the command as you've given in your question:

docker build -t dude/man:v2 .

就个人而言，我倾向于在我的文件夹 (build.sh) 中使用一个小的 shell 脚本进行构建，该脚本传递任何参数并在其中包含图像的名称以节省输入.对于生产，构建由 ci/cd 服务器处理，该服务器在管道脚本中具有图像名称.

Personally, I tend to build with a small shell script in my folder (build.sh) which passes any args and includes the name of the image there to save typing. And for production, the build is handled by a ci/cd server that has the image name inside the pipeline script.

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