anchor.diff:  
   # To minimize rebuilds, binaries that are modified less often should be in earlier RUN commands.
   
  -# Packages::Common
  +# Packages::Base
   RUN /command/core-package-install apt-utils net-tools less curl wget unzip sudo ca-certificates procps jq
   
   # Packages::Development-Utils
  
positive.code: 
  
  ################################################################################
  # Services
  ################################################################################
  
  # password set in sshd/run script at ssh start. allows for override via env var.
  RUN set -e; \
    groupadd --system airstack --gid 432; \
    useradd --uid 431 --system --base-dir /home --create-home --gid airstack --shell /bin/nologin --comment "airstack user" airstack; \
  
negative.code:   echo "airstack  ALL = NOPASSWD: ALL" > /etc/sudoers.d/airstack; \
    usermod --shell /bin/bash airstack
  
  # Default run command
  CMD exec sudo -E sh /usr/local/bin/container-start
  
  
  ################################################################################
  # SERVICES
  ################################################################################
  
  # Add Airstack core commands
  # This should appear as late in the Dockerfile as possible to make builds as
  # fast as possible.
  ADD core /package/airstack/core
  RUN ln -sv /package/airstack/core/command/core-* /command/
  
  #
  # RUNLEVEL 1
  # Start socklog and runit
  #
  
  # socklog
  ADD services/socklog-unix /package/airstack/socklog-unix
  
  # Container init system
  ADD services/runit /package/airstack/runit
  RUN /package/airstack/runit/enable
  
  #
  # RUNLEVEL 2
  #
  
  # dropbear
  ADD services/dropbear /package/airstack/dropbear
  EXPOSE 22
  
  # serf
  ADD services/serf /package/airstack/serf
  EXPOSE 7946
  
  # haproxy
  ADD services/haproxy /package/airstack/haproxy
  
  # socklog-remote
  ADD services/socklog-remote /package/airstack/socklog-remote
  
  
  
  ################################################################################
  # DEBUG
  