Docker command fails during build, but succeeds while executed within running container

Question

the command :

docker build -t nginx-ubuntu . 

whith the Dockerfile below :

FROM ubuntu:12.10
RUN apt-get update
RUN apt-get -y         


        

Answer 1

As an alternative to @creak's answer, you can change the default working directory in a Dockerfile with the WORKDIR command:

FROM ubuntu:12.10
# Run update & install together so that the docker cache doesn't
# contain an out-of-date APT cache (leading to 404's when installing
# packages)
RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get -y install libpcre3 libssl-dev libpcre3-dev wget zip gcc
ADD http://nginx.org/download/nginx-1.4.1.tar.gz nginx-1.4.1.tar.gz
RUN tar -zxf nginx-1.4.1.tar.gz
RUN wget --no-check-certificate https://github.com/max-l/nginx_accept_language_module/archive/master.zip
RUN unzip master
WORKDIR nginx-1.4.1
RUN ./configure --add-module=../nginx_accept_language_module-master --with-http_ssl_module --with-pcre=/lib/x86_64-linux-gnu --with-openssl=/usr/lib/x86_64-linux-gnu

This also affects the default directory when you use docker run (overridden by the -w switch).