anchor.diff:  COPY . /puppetserver
   WORKDIR /puppetserver
   RUN lein clean && lein install
  -RUN EZBAKE_ALLOW_UNREPRODUCIBLE_BUILDS=true EZBAKE_NODEPLOY=true COW=base-xenial-amd64.cow MOCK='' GEM_SOURCE=https://rubygems.org lein with-profile ezbake ezbake local-build
  -RUN mv /puppetserver/output/deb/xenial/*/*.deb /puppetserver.deb
  +RUN EZBAKE_ALLOW_UNREPRODUCIBLE_BUILDS=true EZBAKE_NODEPLOY=true COW=base-bionic-amd64.cow MOCK='' GEM_SOURCE=https://rubygems.org lein with-profile ezbake ezbake local-build
  +RUN mv /puppetserver/output/deb/bionic/*/*.deb /puppetserver.deb
   
  -FROM ubuntu:16.04
  +FROM ubuntu:18.04
   
   ARG vcs_ref
   ARG build_date
  
positive.code: FROM ubuntu:16.04 as build
  
  ENV LANG="en_US.UTF-8"
  RUN apt-get update && \
  
negative.code: 
  ENV PUPPET_SERVER_VERSION="$version"
  ENV DUMB_INIT_VERSION="1.2.1"
  ENV UBUNTU_CODENAME="bionic"
  ENV PUPPETSERVER_JAVA_ARGS="-Xms512m -Xmx512m"
  ENV PATH=/opt/puppetlabs/server/bin:/opt/puppetlabs/puppet/bin:/opt/puppetlabs/bin:$PATH
  ENV PUPPET_MASTERPORT=8140
  