anchor.diff:  WORKDIR /tmp
   RUN install -o daemon -g daemon -d "${IMS_INSTALL_DIR}"
   USER daemon:daemon
  -RUN virtualenv "${IMS_INSTALL_DIR}"
  +RUN python -m venv "${IMS_INSTALL_DIR}"
   RUN "${IMS_INSTALL_DIR}/bin/pip" --no-cache-dir install "${IMS_SOURCE_DIR}"
   
   
  
positive.code: 
  # Allow ims_server to bind to privileged port numbers
  RUN apk add --no-cache libcap
  RUN setcap "cap_net_bind_service=+ep" "${IMS_INSTALL_DIR}/bin/python"
  
  # Configuration
  ENV IMS_HOSTNAME="0.0.0.0"
  
negative.code: # Install compiler toolchain and libraries.
  RUN apk add --no-cache build-base libffi-dev libressl-dev
  
  # Install/upgrade pip
  RUN python -m pip install --upgrade pip
  
  # Paths
  ENV IMS_SOURCE_DIR="/src/ims"
  