# cat Dockerfile
FROM ubuntu:16.04
COPY $pwd/intel_virtual_gateway_console64_1_9_0.tar /root/
COPY $pwd/login.exp /root/
RUN cd /root
RUN echo $PWD
RUN tar -xvf intel_virtual_gateway_console64_1_9_0.tar
RUN cd virtualgatewayconsole_package
RUN apt-get update && apt-get install expect \
expect-dev
构建镜像时,目录没有更改为 /root/。我认为问题可能是缺少 tar 文件,为了确认,在将当前工作目录更改为 /root 目录后打印当前工作目录。但我已经在容器中验证了软件包已成功复制到 /root 目录。我甚至尝试过其他目录进行实验,但目录仍未更改。由于这个问题,随后的步骤都失败了:
# docker build -t release:1.0 .
Sending build context to Docker daemon 633.2MB
Step 1/8 : FROM ubuntu:16.04
---> 6a2f32de169d
Step 2/8 : COPY $pwd/intel_virtual_gateway_console64_1_9_0.tar /root/
---> Using cache
---> 36e9ea407082
Step 3/8 : COPY $pwd/login.exp /root/
---> Using cache
---> 578f9f9481d9
Step 4/8 : RUN cd /root
---> Running in 07ccfc507888
---> ad60f9d31c7e
Removing intermediate container 07ccfc507888
Step 5/8 : RUN echo $PWD
---> Running in e0ec2df6a0dc
/
---> 979a42368814
Removing intermediate container e0ec2df6a0dc
Step 6/8 : RUN tar -xvf intel_virtual_gateway_console64_1_9_0.tar
---> Running in 0701db595e27
tar: intel_virtual_gateway_console64_1_9_0.tar: Cannot open: No such file or directory
tar: Error is not recoverable: exiting now
The command '/bin/sh -c tar -xvf intel_virtual_gateway_console64_1_9_0.tar' returned a non-zero code: 2
但可以在容器内更改目录。
# docker run -it 979a42368814 /bin/bash
root@100b02ddc98a:/# pwd
/
root@100b02ddc98a:/# cd /root/
root@100b02ddc98a:~# pwd
/root
请帮忙找出引起问题的原因。