OCI runtime create failed: starting container process caused "chdir to cwd (\"/root/WS\")...

执行dockerfile过程中报错：

OCI runtime create failed: container_linux.go:345: starting container process caused "chdir to cwd (\"/root/WS\") set in config.json failed: permission denied": unknown

Step 10/14 : USER docker
 ---> Running in 8abf6df6db11
Removing intermediate container 8abf6df6db11
 ---> 6467fcf354fb
Step 11/14 : RUN mkdir -p /home/docker/klocwork
 ---> Running in 9c83eac00878
OCI runtime create failed: container_linux.go:345: starting container process caused "chdir to cwd (\"/root/WS\") set in config.json failed: permission denied": unknown
 

Dockerfile中报错部分如下：其实也就是新建了一个docker用户，并且切换到docker用户下执行新建文件夹的命令 

RUN useradd --create-home --no-log-init --shell /bin/bash docker
USER docker
RUN mkdir -p /home/docker/klocwork

其中报错log中的/root/WS是我在dockerfile一开始定义的WORKDIR /root/WS。

所以猜测是不是新建的docker用户没有权限对/root/WS操作，dockerfile执行过程中每个命令都是默认在/root/WS操作，所以我更改了WORKDIR 的值后docker build dockerfile就没有报错了，如下

WORKDIR /home/docker
USER docker
RUN mkdir -p /home/docker/klocwork