将目录中的文件复制到与Dockerfile不在同一级别的Docker容器中 [英] Copying files in a directory to a docker container not at same level as Dockerfile

问题描述

我正在尝试在Dockerfile中创建Docker映像时复制目录的内容，但是在复制它给我带来错误时-

I am trying to copy content of a directory while creating the docker image in the Dockerfile but while copying its giving me error-

COPY失败：stat
/ var / lib / docker / tmp / docker-builder108255131 / Users / user_1 / media：否
这样的文件或目录

COPY failed: stat /var/lib/docker/tmp/docker-builder108255131/Users/user_1/media : no such file or directory

我在Dockerfile中有以下文件-

I have the following file in the Dockerfile-

COPY /Users/user_1/media/. /code/project_media/

媒体目录位于单独的目录级别，然后是Dockerfile。

The media directory is in a seperate directory level then Dockerfile.

推荐答案

对不起，每个dockerfile文档：

Sorry per dockerfile documentation:

多种资源可以指定，但是文件和目录的路径将被解释为相对于构建上下文的来源

Multiple resources may be specified but the paths of files and directories will be interpreted as relative to the source of the context of the build

https://docs.docker.com/engine/reference/builder/#copy

我通常会有一个用于构建docker的脚本，并在该脚本中复制 COPY 将命令输入到构建上下文的相同目录或子目录中（说出与dockerfile相同的目录非常混乱的方式）

I usually will have a script for building the docker, and in that script will copy the files need for the COPY command into either the same directory or sub-directory of the "context of the build" (a very confusing way of saying the same directory as the dockerfile is in)

DOCKER_BUILD_DIR="./build/docker"
DOCKERFILE="./docker/Dockerfile"
MEDIA_FILES="/Users/user_1/media"

mkdir -p "${DOCKER_BUILD_DIR}/${MEDIA_FILES}"
cp -f "${DOCKERFILE}" "${DOCKER_BUILD_DIR}/"
cp -rf "${MEDIA_FILES}" "${DOCKER_BUILD_DIR}/${MEDIA_FILES}/.."

docker build "${DOCKER_BUILD_DIR}"

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