泊坞窗中的“图像”和“构建”之间的区别 [英] Difference between 'image' and 'build' within docker compose

问题描述

请帮助我了解docker compose中'image'和'build'之间的区别

Please help me understand the difference between 'image' and 'build' within docker compose

推荐答案

• 图像 表示 docker compose 将基于该图像运行容器


• build 表示 docker compose 首先将基于在相关路径中找到的Dockerfile构建映像与构建（然后基于该图像运行容器）。


• image means docker compose will run a container based on that image
• build means docker compose will first build an image based on the Dockerfile found in the path associated with build (and then run a container based on that image).

PR 2458 合并以允许两者（并在构建时使用 image 作为映像名称，

PR 2458 was eventually merged to allow both (and use image as the image name when building, if it exists).

therobyouknow 提到在评论中：




dockerfile：作为 build：下的子语句，可用于指定Dockerfile的文件名/路径。

dockerfile: as a sub-statement beneath build: can be used to specify the filename/path of the Dockerfile.





version: '3'
services:
  webapp:
    build:
      context: ./dir
      dockerfile: Dockerfile-alternate
      args:
        buildno: 1

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