anchor.diff:  # install conda
   ENV PATH /conda/bin:$PATH
   RUN echo 'export PATH=/conda/bin:$PATH' > /etc/profile.d/conda.sh && \
  -    curl https://repo.continuum.io/miniconda/Miniconda2-latest-Linux-x86_64.sh \
  +    curl https://repo.continuum.io/miniconda/Miniconda3-latest-Linux-x86_64.sh \
           -o ~/miniconda.sh && \
       /bin/bash ~/miniconda.sh -b -p /conda && \
       rm ~/miniconda.sh
  
positive.code: 
  # install obspy and dependencies via conda
  RUN conda config --add channels obspy && \
      conda install --yes jupyter mysql-python obspy && \
      conda clean -i -l -t -y && \
      useradd \
          -c 'Docker image user' \
  
negative.code: FROM debian:buster
  
  MAINTAINER Roman Leonhardt <roman.leonhardt@zamg.ac.at>
  LABEL geomagpy.magpy.version=1.0.5
  
  # update os
  RUN apt-get update --fix-missing && \
  