波浪号扩展在 Docker COPY 命令中不起作用 [英] Tilde Expansion Doesn't Work in Docker COPY Command

问题描述

我有一个带有以下行的 Dockerfile:

复制 *.zip ~user1

用户 user1 已经存在并且有一个主目录(即 /home/user1).当然，目标是将 zip 文件复制到该用户的主目录中，但是上面的结果是将 zip 文件复制到图像中字面上命名为 /~user1 的文件中.

以下内容按预期工作:

复制 *.zip/home/user1

这是 Docker 中的一个错误，还是存在我不知道的与波浪号扩展相关的限制?

在 Mac 上使用 Docker 1.13.0.

解决方案

不支持 COPY 的波浪号扩展.

来自 复制文档:p><块引用>

dest 是绝对路径，或相对于 WORKDIR 的路径，源将在目标容器内复制到该路径中.

例子:

COPY test relativeDir/# 添加test"到`WORKDIR`/relativeDir/COPY test/absoluteDir/# 将test"添加到/absoluteDir/

I have a Dockerfile with the following line:

COPY *.zip ~user1

The user user1 already exists and has a home directory (i.e. /home/user1). The goal, of course, is to copy the zip file into that user's home dir, however the result of the above is that the zip file is copied to a file named literally /~user1 in the image.

The following does work as expected:

COPY *.zip /home/user1

Is this a bug in Docker or is there a limitation related to tilde expansion that I'm not aware of?

Using Docker 1.13.0 on Mac.

解决方案

Tilde expansion for COPY is not supported.

From The COPY docs:

The dest is an absolute path, or a path relative to WORKDIR, into which the source will be copied inside the destination container.

Example:

COPY test relativeDir/   # adds "test" to `WORKDIR`/relativeDir/
COPY test /absoluteDir/  # adds "test" to /absoluteDir/

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