anchor.diff:  RUN apt-get update \
       && apt-get install -y --force-yes \
         curl \
  +      unzip \
         jq \
         ruby \
         ruby-dev \
  
positive.code: RUN chmod 400 /root/.ssh/id_rsa
  
  # versions
  ENV TERRAFORM_VERSION v0.6.3.2
  ENV TERRAFORM_COREOS_VERSION v0.0.1
  ENV TERRAFORM_EXECUTE_VERSION v0.0.2
  ENV TERRAFORM_COREOSVER_VERSION v0.0.1
  ENV KUBERNETES_VERSION v1.1.1
  ENV FLEET_VERSION v0.11.5
  ENV VAULT_VERSION 0.3.1
  
  # install jenkins plugins
  RUN /usr/local/bin/plugins.sh /usr/share/jenkins/plugins.txt
  
  # get terraform
  RUN wget https://github.com/Samsung-AG/homebrew-terraform/releases/download/${TERRAFORM_VERSION}/terraform-${TERRAFORM_VERSION}_linux64.tar.gz
  
  # get custom providers
  RUN wget https://github.com/Samsung-AG/homebrew-terraform-provider-coreos/releases/download/${TERRAFORM_COREOS_VERSION}/terraform-provider-coreos_linux_amd64.tar.gz
  RUN wget https://github.com/Samsung-AG/terraform-provider-execute/releases/download/${TERRAFORM_EXECUTE_VERSION}/terraform-provider-execute_linux_amd64.tar.gz
  RUN wget https://github.com/Samsung-AG/terraform-provider-coreosver/releases/download/${TERRAFORM_COREOSVER_VERSION}/terraform-provider-coreosver_linux_amd64.tar.gz
  
  # decompress everything
  RUN tar -xvf terraform-${TERRAFORM_VERSION}_linux64.tar.gz \
      && tar -xvf terraform-provider-coreos_linux_amd64.tar.gz \
      && tar -xvf terraform-provider-coreosver_linux_amd64.tar.gz \
      && tar -xvf terraform-provider-execute_linux_amd64.tar.gz \
      && rm terraform*.tar.gz
  
  # install all binaries
  RUN cp terraform* /usr/local/bin
  
  # cleanup
  RUN rm terraform*
  
  # skip installing gem documentation
  RUN echo 'gem: --no-rdoc --no-ri' >> /.gemrc
  
negative.code: # install bundler and other gems
  RUN gem install bundler aruba cucumber
  
  # get terraform
  RUN wget https://releases.hashicorp.com/terraform/${TERRAFORM_VERSION}/terraform_${TERRAFORM_VERSION}_linux_amd64.zip
  
  # get custom providers
  RUN wget https://github.com/Samsung-AG/terraform-provider-execute/releases/download/${TERRAFORM_EXECUTE_VERSION}/terraform-provider-execute_linux_amd64.tar.gz
  RUN wget https://github.com/Samsung-AG/terraform-provider-coreosbox/releases/download/${TERRAFORM_COREOSBOX_VERSION}/terraform-provider-coreosbox_linux_amd64.tar.gz
  
  # decompress everything
  RUN unzip -o terraform_${TERRAFORM_VERSION}_linux_amd64.zip -d /usr/local/bin \
      && tar -xvf terraform-provider-coreosbox_linux_amd64.tar.gz \
      && tar -xvf terraform-provider-execute_linux_amd64.tar.gz
  
  # install all binaries
  RUN cp terraform* /usr/local/bin
  
  # cleanup
  RUN rm terraform*
  
  # install kubectl
  RUN wget https://github.com/GoogleCloudPlatform/kubernetes/releases/download/${KUBERNETES_VERSION}/kubernetes.tar.gz
  RUN tar -xvf kubernetes.tar.gz
  RUN cp kubernetes/platforms/linux/amd64/kubectl /usr/bin && rm kubernetes.tar.gz
  
  # install vault cli
  RUN wget https://dl.bintray.com/mitchellh/vault/vault_${VAULT_VERSION}_linux_amd64.zip \
  