Dockerfile COPY：“lchown …不是目录”
试图构build这个Dockerfile：
FROM dockerfile/ubuntu RUN apt-get update && apt-get install -y apache2 COPY proxypass.conf /etc/apache2/sites-available COPY caching.conf /etc/apache2/conf-available RUN a2ensite proxypass \ && a2enconf caching \ && a2disconf serve-cgi-bin EXPOSE 80 CMD ["/usr/sbin/apache2ctl", "-D", "FOREGROUND"] proxypass.conf和caching.conf文件与caching.conf一起位于apache目录中。
运行docker build提供这个输出：
$ sudo docker build -t me/apache apache Sending build context to Docker daemon 29.7 kB Sending build context to Docker daemon Step 0 : FROM dockerfile/ubuntu ---> 77f8745ed183 Step 1 : RUN apt-get update && apt-get install -y apache2 ---> Using cache ---> d62d92d91591 Step 2 : COPY proxypass.conf /etc/apache2/sites-available 2014/10/16 09:02:32 lchown /u01/docker/devicemapper/mnt/38bcd5cca695b4e9ac9af77e0342f85dea9fb10a238f7bd5173289bb956cf5c8/rootfs/etc/apache2/sites-available/proxypass.conf: not a directory
这是Oracle Linux 6.5（主要是CentOS 6.5）。
$ sudo docker info Containers: 1 Images: 113 Storage Driver: devicemapper Pool Name: docker-8:2-1308404-pool Data file: /u01/docker/devicemapper/devicemapper/data Metadata file: /u01/docker/devicemapper/devicemapper/metadata Data Space Used: 4307.1 Mb Data Space Total: 102400.0 Mb Metadata Space Used: 5.5 Mb Metadata Space Total: 2048.0 Mb Execution Driver: native-0.2 Kernel Version: 2.6.32-358.23.2.el6.x86_64 Username: kgutwin Registry: [https://index.docker.io/v1/]
Dockerfile COPY指令的文档说：
如果<dest>不以尾部的斜线结束，则将被视为常规文件，<src>的内容将被写入。
所以只需添加一个/目标目录，你就可以build立你的图像：
COPY proxypass.conf /etc/apache2/sites-available/ COPY caching.conf /etc/apache2/conf-available/