anchor.diff:  
   # 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"
  +RUN setcap "cap_net_bind_service=+ep" /usr/local/bin/python3.7
   
   # Configuration
   ENV IMS_HOSTNAME="0.0.0.0"
  
positive.code: # Install compiler toolchain and libraries.
  RUN apk add --no-cache build-base libffi-dev libressl-dev
  
  # Install/upgrade pip and virtualenv
  RUN pip install --upgrade pip virtualenv
  
  # Paths
  ENV IMS_SOURCE_DIR="/src/ims"
  
negative.code: WORKDIR /tmp
  RUN install -o daemon -g daemon -d "${IMS_INSTALL_DIR}"
  USER daemon:daemon
  RUN python -m venv "${IMS_INSTALL_DIR}"
  RUN "${IMS_INSTALL_DIR}/bin/pip" --no-cache-dir install "${IMS_SOURCE_DIR}"
  
  
  