使用 Docker Compose 将文件复制到容器 [英] Copying files to a container with Docker Compose

问题描述

我有一个 Dockerfile，我将现有目录(包含内容)复制到容器中，可以正常工作:

Dockerfile

来自 php:7.0-apache复制前端//var/www/html/aw3somevideo/复制前端//var/www/html/运行 ls -al/var/www/html运行 chown -R www-data:www-data/var/www/html运行 chmod -R 755/var/www/html

但是当我使用 docker-compose.yml 文件时，只有目录 aw3somevideo 而在 aw3somevideo 里面什么都没有.

docker-compose.yml:

 php:构建:php/卷:- ./Frontend/:/var/www/html/- ./Frontend/index.php :/var/www/html/端口:- 8100:80

也许我不了解 volumes 的功能，如果是这种情况，请告诉我如何通过 docker-compose.yml 将现有文件复制到容器中文件.

解决方案

Given

 卷:-/dir/on/host:/var/www/html

如果 /dir/on/host 不存在，则在主机上创建它，并将空内容挂载在 /var/www/html.您之前在容器内的 /var/www/html 中的任何内容都无法访问，直到您卸载该卷；新坐骑隐藏了旧内容.

I have a Dockerfile where I copy an existing directory (with content) to the container which works fine:

Dockerfile

FROM php:7.0-apache
COPY Frontend/ /var/www/html/aw3somevideo/
COPY Frontend/ /var/www/html/

RUN ls -al /var/www/html
RUN chown -R www-data:www-data /var/www/html 
RUN chmod -R 755 /var/www/html 

But when I use a docker-compose.yml file there is only the directory aw3somevideo and inside aw3somevideo there is nothing.

docker-compose.yml:

 php:
    build: php/
    volumes:
      - ./Frontend/ :/var/www/html/
      - ./Frontend/index.php :/var/www/html/
    ports:
      - 8100:80

Maybe I do not understand the function of volumes and if that's the case please tell me how to copy my existing files to the container via a docker-compose.yml file.

解决方案

Given

    volumes:
      - /dir/on/host:/var/www/html

if /dir/on/host doesn't exist, it is created on the host and the empty content is mounted in the container at /var/www/html. Whatever content you had before in /var/www/html inside the container is inaccessible, until you unmount the volume; the new mount is hiding the old content.

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