docker compose 中“image"和“build"之间的区别 [英] Difference between 'image' and 'build' within docker compose

问题描述

请帮助我理解 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

• image 表示 dockercompose 将基于该图像运行一个容器
• build 表示 docker compose 将首先根据与构建关联的路径中找到的 Dockerfile 构建映像(然后基于该映像运行容器).
• 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 最终被合并以允许两者(并使用 image 作为构建时的图像名称(如果存在).

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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