anchor.diff:  
   # Setup working directory
   workdir /home/dev
  -
  -# Cleanup
  -run rm -rf /tmp/* && apt-get clean
   
   # Run everything below as the dev user
   user dev
  
positive.code: env DEBIAN_FRONTEND noninteractive
  
  # Update distrib
  run apt-get update && apt-get upgrade -y
  
  # Install packages
  run apt-get install -y man vim tmux zsh git curl wget sudo ca-certificates build-essential corkscrew dnsutils
  
  # Install the latest version of the docker CLI
  run curl -L -o /usr/local/bin/docker https://get.docker.io/builds/Linux/x86_64/docker-latest && \
      chmod +x /usr/local/bin/docker
  
  # Allow dev user to use docker
  run echo "dev    ALL=NOPASSWD: /usr/local/bin/docker" > /etc/sudoers.d/docker
  
  # Install the latest version of fleetctl
  env FLEET_URL https://github.com/coreos/fleet/releases/download/v0.8.3/fleet-v0.8.3-linux-amd64.tar.gz
  run (cd /tmp && wget $FLEET_URL -O fleet.tgz && tar zxf fleet.tgz && mv fleet-*/fleetctl /usr/local/bin/)
  
  # Install the latest version of Go
  env GO_URL https://storage.googleapis.com/golang/go1.3.1.linux-amd64.tar.gz
  run (cd /tmp && curl -L -o go.tgz $GO_URL && tar -v -C /usr/local -xzf go.tgz)
  env GOROOT /usr/local/go/
  env GOPATH /home/dev/go
  env PATH $PATH:$GOROOT/bin:$GOPATH/bin
  
negative.code: # My devbox Docker image.
  #
  # VERSION 0.0.1
  
  from debian:jessie
  
  