Installing Docker on Ubuntu 12.04 64-bit

# install the backported kernel
sudo apt-get update
sudo apt-get install linux-image-generic-lts-raring linux-headers-generic-lts-raring

# reboot
sudo reboot

Docker is available as a Debian package, which makes installation easy.

First add the Docker repository key to your local keychain. You can use the apt-key command to check the fingerprint matches: 36A1 D786 9245 C895 0F96 6E92 D857 6A8B A88D 21E9

sudo sh -c "wget -qO- https://get.docker.io/gpg | apt-key add -"

Add the Docker repository to your apt sources list, update and install the lxc-docker package.

You may receive a warning that the package isn’t trusted. Answer yes to continue installation.

sudo sh -c "echo deb http://get.docker.io/ubuntu docker main\ > /etc/apt/sources.list.d/docker.list"
sudo apt-get update
sudo apt-get install lxc-docker

Now verify that the installation has worked by downloading the ubuntu image and launching a container.

sudo docker run -i -t ubuntu /bin/bash

Type exit to exit

-OR-

Docker.io provides a shell script for getting you up and running:

#!/bin/sh set -e # # This script is meant for quick & easy install via: #   'curl -sL https://get.docker.io/ | sh' # or: #   'wget -qO- https://get.docker.io/ | sh' # # # Docker Maintainers: #   To update this script on https://get.docker.io, #   use hack/release.sh during a normal release, #   or the following one-liner for script hotfixes: #     s3cmd put --acl-public -P hack/install.sh s3://get.docker.io/index # url='https://get.docker.io/' command_exists() { command -v "$@" > /dev/null 2>&1 } case "$(uname -m)" in *64)   ;; *)   echo >&2 'Error: you are not using a 64bit platform.'   echo >&2 'Docker currently only supports 64bit platforms.'   exit 1   ;; esac if command_exists docker || command_exists lxc-docker; then echo >&2 'Warning: "docker" or "lxc-docker" command appears to already exist.' echo >&2 'Please ensure that you do not already have docker installed.' echo >&2 'You may press Ctrl+C now to abort this process and rectify this situation.' ( set -x; sleep 20 ) fi sh_c='sh -c' if [ "$(whoami 2>/dev/null || true)" != 'root' ]; then if command_exists sudo; then   sh_c='sudo sh -c' elif command_exists su; then   sh_c='su -c' else   echo >&2 'Error: this installer needs the ability to run commands as root.'   echo >&2 'We are unable to find either "sudo" or "su" available to make this happen.'   exit 1 fi fi curl='' if command_exists curl; then curl='curl -sL' elif command_exists wget; then curl='wget -qO-' elif command_exists busybox && busybox --list-modules | grep -q wget; then curl='busybox wget -qO-' fi # perform some very rudimentary platform detection lsb_dist='' if command_exists lsb_release; then lsb_dist="$(lsb_release -si)" fi if [ -z "$lsb_dist" ] && [ -r /etc/lsb-release ]; then lsb_dist="$(. /etc/lsb-release && echo "$DISTRIB_ID")" fi if [ -z "$lsb_dist" ] && [ -r /etc/debian_version ]; then lsb_dist='Debian' fi case "$lsb_dist" in Ubuntu|Debian)   export DEBIAN_FRONTEND=noninteractive   did_apt_get_update=   apt_get_update() {    if [ -z "$did_apt_get_update" ]; then     ( set -x; $sh_c 'sleep 3; apt-get update' )     did_apt_get_update=1    fi   }   # TODO remove this section once device-mapper lands   if ! grep -q aufs /proc/filesystems && ! $sh_c 'modprobe aufs'; then    kern_extras="linux-image-extra-$(uname -r)"    apt_get_update    ( set -x; $sh_c 'sleep 3; apt-get install -y -q '"$kern_extras" ) || true    if ! grep -q aufs /proc/filesystems && ! $sh_c 'modprobe aufs'; then     echo >&2 'Warning: tried to install '"$kern_extras"' (for AUFS)'     echo >&2 ' but we still have no AUFS.  Docker may not work. Proceeding anyways!'     ( set -x; sleep 10 )    fi   fi   if [ ! -e /usr/lib/apt/methods/https ]; then    apt_get_update    ( set -x; $sh_c 'sleep 3; apt-get install -y -q apt-transport-https' )   fi   if [ -z "$curl" ]; then    apt_get_update    ( set -x; $sh_c 'sleep 3; apt-get install -y -q curl' )    curl='curl -sL'   fi   (    set -x    $sh_c "$curl ${url}gpg | apt-key add -"    $sh_c "echo deb ${url}ubuntu docker main > /etc/apt/sources.list.d/docker.list"    $sh_c 'sleep 3; apt-get update; apt-get install -y -q lxc-docker'   )   if command_exists docker && [ -e /var/run/docker.sock ]; then    (     set -x     $sh_c 'docker run busybox echo "Docker has been successfully installed!"'    )   fi   exit 0   ;;  Gentoo)   if [ "$url" = "https://test.docker.io/" ]; then    echo >&2    echo >&2 '  You appear to be trying to install the latest nightly build in Gentoo.'    echo >&2 '  The portage tree should contain the latest stable release of Docker, but'    echo >&2 '  if you want something more recent, you can always use the live ebuild'    echo >&2 '  provided in the "docker" overlay available via layman.  For more'    echo >&2 '  instructions, please see the following URL:'    echo >&2 '    https://github.com/tianon/docker-overlay#using-this-overlay'    echo >&2 '  After adding the "docker" overlay, you should be able to:'    echo >&2 '    emerge -av =app-emulation/docker-9999'    echo >&2    exit 1   fi   (    set -x    $sh_c 'sleep 3; emerge app-emulation/docker'   )   exit 0   ;; esac echo >&2 echo >&2 '  Either your platform is not easily detectable, is not supported by this' echo >&2 '  installer script (yet - PRs welcome!), or does not yet have a package for' echo >&2 '  Docker.  Please visit the following URL for more detailed installation' echo >&2 '  instructions:' echo >&2 echo >&2 '    http://docs.docker.io/en/latest/installation/' echo >&2 exit 1

* Stolen mercilessly from the good people at Docker.io (http://docs.docker.io/en/latest/installation/ubuntulinux/)