Analytics jupyterhub notebook server with anaconda issues

analytics-nb.dockerfile

# Copyright (c) Jupyter Development Team.
# Distributed under the terms of the Modified BSD License.
# Modified by Sebastian Haenisch

# Pin to version of notebook image that includes start-singleuser.sh script
FROM jupyter/scipy-notebook:28515ed64e5e

USER root
RUN apt-get update
RUN apt-get install libpq-dev python-dev -y

# Do the pip installs as the unprivileged notebook user
USER jovyan

# Install Anaconda
RUN conda install anaconda -y
RUN conda uninstall nb_anacondacloud -y

# Install dashboard layout and preview within Jupyter Notebook
RUN pip install jupyter_dashboards && \
	jupyter dashboards quick-setup --sys-prefix

# Install declarative widgets for Jupyter Notebook
RUN pip install jupyter_declarativewidgets && \
	jupyter declarativewidgets quick-setup --sys-prefix
	
# Install content management to support dashboard bundler options
RUN pip install jupyter_cms && \
	jupyter cms quick-setup --sys-prefix
RUN pip install jupyter_dashboards_bundlers && \
	jupyter dashboards_bundlers quick-setup --sys-prefix

#Install Jupyter Lab
USER jovyan
RUN pip install jupyterlab && \
    jupyter serverextension enable --py jupyterlab

# Install RISE
USER jovyan
RUN pip install RISE && \
	jupyter-nbextension install rise --py --sys-prefix && \
	jupyter-nbextension enable rise --py --sys-prefix

# Install nbextensions_configurator
USER jovyan
RUN pip install jupyter_nbextensions_configurator
RUN jupyter nbextensions_configurator enable --user

RUN conda install -c conda-forge jupyter_contrib_nbextensions -y

# Install packages in default Python 3 environment
USER jovyan
RUN pip install \
  beautifulsoup4 \
  psycopg2 \
  sqlalchemy-redshift \
  yapf

# Install packages in Python 2 environment
RUN $CONDA_DIR/envs/python2/bin/pip install \
  beautifulsoup4 \
  psycopg2 \
  sqlalchemy-redshift \
  yapf

# Use custom startup script
USER root
COPY docker-entrypoint.sh /srv/docker-entrypoint.sh
ENTRYPOINT ["tini", "--", "/srv/docker-entrypoint.sh"]
CMD ["start-singleuser.sh"]

USER jovyan