first attempt at Jupyterlab 3.0 image for Sept

Still need to:
- pin package versions
- upgrade to built-in pipe shortcut
- confirm disabling of merged cells works on a JupyterHub

r-dsci-100/Dockerfile

@@ -1,19 +1,19 @@
 # Copyright (c) UBC-DSCI Development Team.
 # Distributed under the terms of the Modified BSD License.
-ARG BASE_CONTAINER=jupyter/r-notebook@sha256:38d5c53d93c02793d7dcade4db13c3f79a685b8cda700e36cded121ecc882bd2
+ARG BASE_CONTAINER=jupyter/r-notebook
 FROM $BASE_CONTAINER
 
 LABEL maintainer="Tiffany Timbers <[email protected]>"
 
 # Install R packages on conda-forge
 RUN conda install --quiet --yes -c conda-forge \
-  r-cowplot=1.* \
-  r-ggally=1.5.* \
-  r-gridextra=2.3.* \
-  r-infer=0.5.* \
+  r-cowplot \
+  r-ggally \
+  r-gridextra \
+  r-infer \
   r-kknn \
   r-testthat=2.3.* \
-  r-rpostgres=1.2.*
+  r-rpostgres
 
 # Install the palmerpenguins dataset
 RUN Rscript -e "devtools::install_github('allisonhorst/[email protected]')" 
@@ -25,13 +25,12 @@ RUN Rscript -e "install.packages('ISLR', repos='http://cran.us.r-project.org')"
 USER root
 
 RUN pip install git+https://github.com/data-8/nbgitpuller \
-    && jupyter serverextension enable --sys-prefix nbgitpuller \
-    && jupyter labextension install @jupyterlab/git \
-    && pip install jupyterlab-git \
-    && jupyter serverextension enable --py jupyterlab_git \
-    && pip install jupytext --upgrade \
-    && jupyter labextension install @techrah/text-shortcuts \
-    && jupyter lab build  
+  && jupyter serverextension enable --sys-prefix nbgitpuller \
+  && pip install jupyterlab-git \
+  && pip install jupytext --upgrade \
+  && jupyter labextension install @techrah/text-shortcuts \
+  && jupyter lab build  
+
 RUN useradd -m -s /bin/bash -N -u 9999 jupyter
 
 USER jupyter
@@ -40,6 +39,6 @@ COPY rm-merge-shortcut.py /home/jupyter/.jupyter/lab/user-settings/\@jupyterlab/
 
 # Configure jupyter user
 ENV NB_USER=jupyter \
-    NB_UID=9999
+  NB_UID=9999
 ENV HOME=/home/$NB_USER
 WORKDIR $HOME