anchor.diff:   tar -zxvf google-cloud-sdk-${CLOUD_SDK_VERSION}-linux-x86_64.tar.gz && \
       CLOUDSDK_PYTHON="python2.7" /google-cloud-sdk/install.sh --usage-reporting=false \
           --bash-completion=false \
  -        --disable-installation-options
  +        --disable-installation-options && \
  +  rm -rf google-cloud-sdk-*.tar.gz
   ENV PATH=$PATH:/google-cloud-sdk/bin
   RUN /google-cloud-sdk/bin/gcloud auth configure-docker
   
  
positive.code:         software-properties-common \
          ruby-dev \
          apt-transport-https && \
      gem install  --no-document "asciidoctor-pdf:${ASCIIDOCTOR_PDF_VERSION}" \
          asciidoctor:${ASCIIDOCTOR_VERSION} \
          pygments.rb rouge && \
  
negative.code:   && curl https://bazel.build/bazel-release.pub.gpg | apt-key add -
  
  RUN apt-get update \
    && apt-get install -y bazel && \
    rm -rf /var/lib/apt/lists/*
  
  ENV CONTAINER_STRUCTURE_TEST_VERSION=1.5.0
  RUN curl -LO https://storage.googleapis.com/container-structure-test/v${CONTAINER_STRUCTURE_TEST_VERSION}/container-structure-test-linux-amd64 \
  