add example for requirements.txt

Dockerfile

@@ -2,6 +2,10 @@
 ARG BASE_IMAGE=registry.git-ce.rwth-aachen.de/jupyter/singleuser/python:latest
 FROM ${BASE_IMAGE}
 
+# Install packages via requirements.txt
+ADD /tmp/requirement.txt .
+RUN pip3 install -r /tmp/requirements.txt
+
 # Update conda base environment to match specifications in environment.yml
 ADD environment.yml /tmp/environment.yml
 USER root
@@ -13,6 +17,3 @@ RUN conda env update -f /tmp/environment.yml && \
     conda clean -a -f -y
 
 ENV JUPYTER_ENABLE_LAB=yes
-
-# Copy workspace
-COPY ./ /home/jovyan

requirements.txt

+pandas