Docker - Create a full Ubuntu Trusty base image using tar
I tried to use the pre-built Ubuntu docker base image from official reposity: $ sudo docker pull ubuntu $ sudo docker run -i -t ubuntu:trusty /bin/bash but the trusty container only has python 3, and I could not install python2.7 or wget. It's such a pain in the ass. So, I decided to build the image myself using the following method: $ sudo apt-get install debootstrap $ sudo debootstrap trusty trusty > /dev/null $ sudo tar -C trusty -c . | sudo docker import - trusty 32f486151f08fa838fd6aa6b9e23b92ebc98e12e8ab36c173f23f71836c003d5 $ sudo docker run trusty cat /etc/lsb-release DISTRIB_ID=Ubuntu DISTRIB_RELEASE=14.04 DISTRIB_CODENAME=trusty DISTRIB_DESCRIPTION="Ubuntu 14.04 LTS" Now I can install python2.7 inside the container running on the new image: $ sudo docker run -i -t trusty /bin/bash root@2ff30118feb7:/# apt-get install python2.7 Reference: https://docs.docker.com/articles/baseimages/