多个镜像，一个 Dockerfile [英] Multiple images, one Dockerfile

问题描述

如何在一个 Dockerfile 中创建两个镜像，它们只复制不同的文件.

How to create two images in one Dockerfile, they only copy different files.

这不应该产生两个图像img1 &img2，而是生成两个未命名的图像 d00a6fc336b3 &a88fbba7eede

Shouldn't this produce two images img1 & img2, instead it produces two unnamed images d00a6fc336b3 & a88fbba7eede

Dockerfile:

Dockerfile:

FROM alpine as img1
COPY file1.txt .

FROM alpine as img2
COPY file2.txt .

这是 docker build 的结果.

REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
<none>              <none>              d00a6fc336b3        4 seconds ago       4.15 MB
<none>              <none>              a88fbba7eede        5 seconds ago       4.15 MB
alpine              latest              3fd9065eaf02        3 months ago        4.15 MB

推荐答案

你可以使用 <使用 target 的 code>docker-compose 文件 选项:

You can use a docker-compose file using the target option:

version: '3.4'
services:
  img1:
    build:
      context: .
      target: img1
  img2:
    build:
      context: .
      target: img2

使用带有以下内容的 Dockerfile:

using your Dockerfile with the following content:

FROM alpine as img1
COPY file1.txt .

FROM alpine as img2
COPY file2.txt .

这篇关于多个镜像，一个 Dockerfile的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！