Revert to using supervisord to launch notebook

Used to relaunch notebook and collect logging data.

minimal-notebook/Dockerfile

@@ -20,6 +20,7 @@ RUN apt-get update && apt-get install -yq --no-install-recommends \
     texlive-latex-extra \
     texlive-fonts-extra \
     texlive-fonts-recommended \
+    supervisor \
     sudo \
     && apt-get clean
 
@@ -53,4 +54,5 @@ CMD [ "start-notebook.sh" ]
 
 # Add local files as late as possible to avoid cache busting
 COPY start-notebook.sh /usr/local/bin/
+COPY notebook.conf /etc/supervisor/conf.d/
 COPY jupyter_notebook_config.py /etc/skel/.jupyter/

minimal-notebook/notebook.conf

+[program:notebook]
+user=jovyan
+umask=0002
+directory=%(ENV_WORK)s
+command=ipython notebook
+autostart=true
+autorestart=true
+stdout_logfile=/var/log/supervisor/%(program_name)s.log
+redirect_stderr=true
+environment=HOME="/home/%(ENV_NB_USER)s",USER="%(ENV_NB_USER)s"

minimal-notebook/start-notebook.sh

@@ -12,8 +12,5 @@ if [ ! -z "$GRANT_SUDO" ]; then
     echo "$NB_USER ALL=(ALL) NOPASSWD:ALL" > /etc/sudoers.d/notebook
 fi
 
-# Run Notebook server as $NB_USER
-su -l $NB_USER << EOF
-cd $WORK
-jupyter notebook
-EOF
+# Start supervisord in foreground, PID1
+exec supervisord -n -c /etc/supervisor/supervisord.conf