anchor.diff:  # In case you mount your collections directory to a different location, you will need to give absolute paths to any
   # collection, environment files you want to pass to newman, and if you want newman reports to be saved to your disk.
   # Or you can change the workdir by using the -w or --workdir flag
  -
   WORKDIR /etc/newman
   
   # Set newman as the default container command
  
positive.code: # docker run -v /home/collections:/etc/newman -t postman/newman_ubuntu1404 -c YourCollection.json.postman_collection \
  #                                                                          -e YourEnvironment.postman_environment \
  #                                                                          -H newman_report.html
  
  ENTRYPOINT ["newman"]
negative.code: FROM ubuntu:14.04.2
  MAINTAINER Postman Labs <help@getpostman.com>
  
  ARG newman_version
  # Bail out early if NODE_VERSION is not provided
  RUN if [ ! $(echo $newman_version | grep -oE "^[0-9]+\.[0-9]+\.[0-9]+$") ]; then \
          echo "\033[0;31mA valid semver Newman version is required in the newman_version build-arg\033[0m"; \
          exit 1; \
      fi
  
  # Set node version
  ENV NODE_VERSION 8
  
  # Install node
  ADD https://deb.nodesource.com/setup_$NODE_VERSION.x /opt/install_node.sh
  RUN bash /opt/install_node.sh && apt-get install -y nodejs
  
  # Set environment variables
  ENV LC_ALL="en_US.UTF-8" LANG="en_US.UTF-8" LANGUAGE="en_US.UTF-8" NEWMAN_VERSION=$newman_version
  
  # Install newman
  RUN npm install -g newman@${NEWMAN_VERSION};
  
  # Set workdir to /etc/newman
  # When running the image, mount the directory containing your collection to this location
  