anchor.diff:  # -----------------------------------------------------------------------------
   # This stage builds the application container.
   # -----------------------------------------------------------------------------
  -FROM python:3.9-alpine3.12 as application
  +FROM python:3.9-alpine3.13 as application
   
   # Docker-specific default configuration
   ENV IMS_HOSTNAME="0.0.0.0"
  
positive.code: COPY ./COPYRIGHT.rst  ./
  COPY ./LICENSE.txt    ./
  COPY ./pyproject.toml ./
  COPY ./setup.py       ./
  COPY ./src/           ./src/
  
  # Install the application
  WORKDIR /tmp
  RUN install -o daemon -g daemon -d "${IMS_INSTALL_DIR}"
  USER daemon:daemon
  RUN python -m venv "${IMS_INSTALL_DIR}"
  RUN "${IMS_INSTALL_DIR}/bin/pip" --no-cache-dir install --upgrade pip
  RUN "${IMS_INSTALL_DIR}/bin/pip" --no-cache-dir install "${IMS_SOURCE_DIR}"
  
negative.code: # -----------------------------------------------------------------------------
  # This stage builds the build container.
  # -----------------------------------------------------------------------------
  FROM python:3.9-alpine3.13 as build
  
  # Install compiler toolchain and libraries.
  RUN apk add --no-cache build-base libffi-dev libressl-dev
  
  # Install Rust for cryptography
  RUN apk add --no-cache build-base rust cargo
  
  # Paths
  ENV IMS_SOURCE_DIR="/src/ims"
  