anchor.diff:  RUN rm -rf /usr/local/src/ansible-waldur-module/.git \
              /usr/local/src/django-dbtemplates/.git
   
  +# Delete all development libraries
  +RUN apt-get purge -y lib*-dev
  +
   ENTRYPOINT ["/app-entrypoint.sh"]
   CMD ["/bin/bash"]
  
positive.code:     chmod +x /usr/local/bin/gosu
  
  # Install necessary packages
  RUN echo "deb-src http://deb.debian.org/debian buster main" >> /etc/apt/sources.list && \
      apt-get update       && \
      apt-get install -y      \
      git                     \
      libldap2-dev            \
      libsasl2-dev            \
      libgnutls28-dev         \
      ldap-utils              \
      lcov                    \
      python3-dev             \
      gettext                 \
      logrotate               \
      openssl                 \
      libffi-dev              \
      libjpeg-dev             \
      libxml2-dev             \
  
negative.code: # Disable weak crypto algorithms in xmldsig used by PySAML2
  # See also: https://github.com/IdentityPython/pysaml2/issues/421#issuecomment-306133822
  FROM buildpack-deps:buster as xmlsec1
  WORKDIR /xmlsec1
  RUN echo "deb-src http://deb.debian.org/debian buster main" >> /etc/apt/sources.list && \
      apt-get update              && \
      apt-get install -y --no-install-recommends build-essential && \
      apt-get build-dep -y xmlsec1 && \
      apt-get source xmlsec1      && \
      cd xmlsec1-1*               && \
      sed "s/--disable-crypto-dl/--disable-crypto-dl --enable-md5=no --enable-ripemd160=no/g" debian/rules >> debian/rules && \
      dpkg-buildpackage -us -uc && \
      cd .. && rm ./*-dbgsym*.deb ./*-dev*.deb ./*-doc*.deb
  
  FROM python:3.8
  
  # Add tini
  