apt-get not working in Dockerfile
问题 ANSWER : I still don't know what was really wrong but after I restarted docker and ran it again (same dockerfile, same everything), it worked fine. I'm using Docker on Windows and my Dockerfile is FROM ubuntu:15.04 COPY . /src RUN apt-get update RUN apt-get install -y nodejs ...etc but when I try to build the image I get WARN[0001] SECURITY WARNING: You are building a Docker image from Windows against a Linux Docker host. All files and directories added to build context will have '-rwxr-xr-x'