permissions fixed.

singleuser/Dockerfile

@@ -24,26 +24,33 @@ USER jovyan
 RUN conda update --all
 RUN conda install fenics
 
-RUN python3 -m pip install --no-cache jupyterhub==$JUPYTERHUB_VERSION nbresuse && \
-     jupyter labextension install jupyterlab-topbar-extension && \
-     jupyter labextension install jupyterlab-system-monitor 
-
 # If you do not need parallelism, delete the following. 
 RUN python3 -m pip install ipyparallel mpi4py
 RUN ipython profile create --parallel --profile=mpi
 RUN ipython profile create --parallel --profile=default
 RUN echo "c.IPClusterEngines.engine_launcher_class = 'MPIEngineSetLauncher'" >> /home/jovyan/.ipython/profile_mpi/ipcluster_config.py
 
 # Python 2 environment
-USER root
-RUN conda create --quiet --yes -p $CONDA_DIR/envs/python2 python=2.7 ipython ipykernel kernda numpy pandas matplotlib ipywidgets yaml ipyparallel mpi4py 
+RUN conda create --quiet --yes -p $CONDA_DIR/envs/python2 python=2.7 ipython ipykernel kernda numpy pandas matplotlib ipywidgets yaml ipyparallel mpi4py scipy pyDOE
 RUN /opt/conda/envs/python2/bin/ipython profile create --parallel --profile=mpi
 
+USER root
 # Create a global kernelspec in the image and modify it so that it properly activates
 # the python2 conda environment.
 RUN $CONDA_DIR/envs/python2/bin/python -m ipykernel install && \
 $CONDA_DIR/envs/python2/bin/kernda -o -y /usr/local/share/jupyter/kernels/python2/kernel.json
 
+USER $NB_UID
+# Jupyterhub and memory monitoring
+RUN python3 -m pip install --no-cache jupyterhub==$JUPYTERHUB_VERSION nbresuse && \
+    jupyter labextension install jupyterlab-topbar-extension && \
+    jupyter labextension install jupyterlab-system-monitor && \
+    npm cache clean --force && \
+    rm -rf $CONDA_DIR/share/jupyter/lab/staging && \
+    rm -rf /home/$NB_USER/.cache/yarn && \
+    rm -rf /home/$NB_USER/.node-gyp && \
+    fix-permissions $CONDA_DIR && \
+    fix-permissions /home/$NB_USER
 
 # R environment 
 USER root