Dockerfile - third_party/github.com/moby/moby - Git at Google

 # This file describes the standard way to build Docker, using docker
 docker-version 0.4.2
 from	ubuntu:12.04
 maintainer	Solomon Hykes <solomon@dotcloud.com>
 # Build dependencies
 run	echo 'deb http://archive.ubuntu.com/ubuntu precise main universe' > /etc/apt/sources.list
 run	apt-get update
 run	apt-get install -y -q curl
 run	apt-get install -y -q git
 run	apt-get install -y -q mercurial
 # Install Go
 run	curl -s https://go.googlecode.com/files/go1.1.2.linux-amd64.tar.gz | tar -v -C /usr/local -xz
 env	PATH	/usr/local/go/bin:/usr/local/bin:/usr/local/sbin:/usr/bin:/usr/sbin:/bin:/sbin
 env	GOPATH	/go
 env	CGO_ENABLED 0
 run	cd /tmp && echo 'package main' > t.go && go test -a -i -v
 # Ubuntu stuff
 run	apt-get install -y -q ruby1.9.3 rubygems
 run	gem install fpm
 run	apt-get install -y -q reprepro dpkg-sig
 # Install s3cmd 1.0.1 (earlier versions don't support env variables in the config)
 run	apt-get install -y -q python-pip
 run	pip install s3cmd
 run	pip install python-magic
 run	/bin/echo -e '[default]\naccess_key=$AWS_ACCESS_KEY\nsecret_key=$AWS_SECRET_KEY\n' > /.s3cfg
 # Download dependencies
 run	PKG=github.com/kr/pty REV=27435c699;		 git clone http://$PKG /go/src/$PKG && cd /go/src/$PKG && git checkout -f $REV
 run	PKG=github.com/gorilla/context/ REV=708054d61e5; git clone http://$PKG /go/src/$PKG && cd /go/src/$PKG && git checkout -f $REV
 run	PKG=github.com/gorilla/mux/ REV=9b36453141c;	 git clone http://$PKG /go/src/$PKG && cd /go/src/$PKG && git checkout -f $REV
 run	PKG=github.com/dotcloud/tar/ REV=d06045a6d9;	 git clone http://$PKG /go/src/$PKG && cd /go/src/$PKG && git checkout -f $REV
 # Docker requires code.google.com/p/go.net/websocket
 run	apt-get install -y -q mercurial
 run	PKG=code.google.com/p/go.net/ REV=84a4013f96e0;  hg  clone http://$PKG /go/src/$PKG && cd /go/src/$PKG && hg  checkout    $REV
 # Upload docker source
 add	.       /go/src/github.com/dotcloud/docker
 run	ln -s	/go/src/github.com/dotcloud/docker /src
 # Build the binary
 run	cd /go/src/github.com/dotcloud/docker && hack/release/make.sh
 cmd	cd /go/src/github.com/dotcloud/docker && hack/release/release.sh
	# This file describes the standard way to build Docker, using docker
	docker-version 0.4.2
	from ubuntu:12.04
	maintainer Solomon Hykes <solomon@dotcloud.com>
	# Build dependencies
	run echo 'deb http://archive.ubuntu.com/ubuntu precise main universe' > /etc/apt/sources.list
	run apt-get update
	run apt-get install -y -q curl
	run apt-get install -y -q git
	run apt-get install -y -q mercurial
	# Install Go
	run curl -s https://go.googlecode.com/files/go1.1.2.linux-amd64.tar.gz \| tar -v -C /usr/local -xz
	env PATH /usr/local/go/bin:/usr/local/bin:/usr/local/sbin:/usr/bin:/usr/sbin:/bin:/sbin
	env GOPATH /go
	env CGO_ENABLED 0
	run cd /tmp && echo 'package main' > t.go && go test -a -i -v
	# Ubuntu stuff
	run apt-get install -y -q ruby1.9.3 rubygems
	run gem install fpm
	run apt-get install -y -q reprepro dpkg-sig
	# Install s3cmd 1.0.1 (earlier versions don't support env variables in the config)
	run apt-get install -y -q python-pip
	run pip install s3cmd
	run pip install python-magic
	run /bin/echo -e '[default]\naccess_key=$AWS_ACCESS_KEY\nsecret_key=$AWS_SECRET_KEY\n' > /.s3cfg
	# Download dependencies
	run PKG=github.com/kr/pty REV=27435c699; git clone http://$PKG /go/src/$PKG && cd /go/src/$PKG && git checkout -f $REV
	run PKG=github.com/gorilla/context/ REV=708054d61e5; git clone http://$PKG /go/src/$PKG && cd /go/src/$PKG && git checkout -f $REV
	run PKG=github.com/gorilla/mux/ REV=9b36453141c; git clone http://$PKG /go/src/$PKG && cd /go/src/$PKG && git checkout -f $REV
	run PKG=github.com/dotcloud/tar/ REV=d06045a6d9; git clone http://$PKG /go/src/$PKG && cd /go/src/$PKG && git checkout -f $REV
	# Docker requires code.google.com/p/go.net/websocket
	run apt-get install -y -q mercurial
	run PKG=code.google.com/p/go.net/ REV=84a4013f96e0; hg clone http://$PKG /go/src/$PKG && cd /go/src/$PKG && hg checkout $REV
	# Upload docker source
	add . /go/src/github.com/dotcloud/docker
	run ln -s /go/src/github.com/dotcloud/docker /src
	# Build the binary
	run cd /go/src/github.com/dotcloud/docker && hack/release/make.sh
	cmd cd /go/src/github.com/dotcloud/docker && hack/release/release.sh