我正在尝试设置Docker容器来测试Magento扩展。我期望用这样的Dockerfile做到这一点:
FROM php:5.4-apache
WORKDIR /var/www/html
ADD http://www.magentocommerce.com/downloads/assets/1.9.0.1/magento-1.9.0.1.tar.gz /var/www/html
# Other installation steps
但那失败了:
2014/09/27 17:03:25 lchown /mnt/sda1/var/lib/docker/aufs/mnt/d5ced8f20d760458093f2993ea25ffa9a644c93d5b134e793f820f53dfc2d70d/var/www/html/tmp: not a directory
我认为它与我在OS X上使用boot2docker有关。(我记得OS X有一些文件系统与Docker共享问题。)所以我再次尝试使用这个Dockerfile:
FROM php:5.4-apache
WORKDIR /var/www/html
# We should be able to use ADD to fetch a remote file, but
# something is causing that to fail (OS X Docker limitations, I guess?)
RUN ["/usr/bin/curl", "-O", "http://www.magentocommerce.com/downloads/assets/1.9.0.1/magento-1.9.0.1.tar.gz"]
RUN ["/bin/tar", "-xzf", "magento-1.9.0.1.tar.gz"]
# Other installation steps
当我运行上面的命令时,curl执行得很好并且没有错误地退出,但是生成的容器不包含下载的文件,因此下游tar命令失败。
Step 2 : RUN ["/usr/bin/curl", "-O", "http://www.magentocommerce.com/downloads/assets/1.9.0.1/magento-1.9.0.1.tar.gz"]
---> Running in 2695c5e95f77
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 21.9M 100 21.9M 0 0 817k 0 0:00:27 0:00:27 --:--:-- 842k
---> bb716a60c4ef
Removing intermediate container 2695c5e95f77
Step 3 : RUN ["/bin/tar", "-xzf", "magento-1.9.0.1.tar.gz"]
---> Running in 95cc533947c1
tar (child): magento-1.9.0.1.tar.gz: Cannot open: No such file or directory
tar (child): Error is not recoverable: exiting now
/bin/tar: Child returned status 2
/bin/tar: Error is not recoverable: exiting now
2014/09/27 17:07:47 The command [/bin/tar -xzf magento-1.9.0.1.tar.gz] returned a non-zero code: 2
如果我检查中间容器,那么文件确实不存在。
$ docker run bb716a60c4ef /bin/sh -c 'pwd && ls -al'
/var/www/html
total 8
drwxr-xr-x 2 www-data www-data 4096 Sep 27 21:09 .
drwxr-xr-x 4 root root 4096 Sep 23 11:09 ..
那么它去了哪里,我如何设置一个允许我下载和修改文件系统的Dockerfile?
答案 0 :(得分:3)
这里有几件事需要注意。我将从第一个Dockerfile
开始,因为那个的修复非常简单:
FROM php:5.4-apache
WORKDIR /var/www/html
ADD http://www.magentocommerce.com/downloads/assets/1.9.0.1/magento-1.9.0.1.tar.gz /var/www/html/
# Other installation steps
你抓到了吗?将/
添加到目标的末尾会告诉ADD
命令将其视为文件夹。请参阅https://docs.docker.com/reference/builder/#add处的复制规则的第3个要点。
第二个Dockerfile
对我来说有点神秘。但我怀疑它与父图像设置/var/www/html
有关,作为跳过图层版本控制的卷。请参阅https://github.com/docker-library/php/blob/master/5.4/apache/Dockerfile#L46。