cleanup dockerfiles (mostly just to force a push / tag bump to test new action)

Author: trevorcampbell

r-dsci-100/Dockerfile

@@ -1,7 +1,6 @@
 # Copyright (c) UBC-DSCI Development Team.
 # Distributed under the terms of the Modified BSD License.
-ARG BASE_CONTAINER=jupyter/r-notebook
-FROM $BASE_CONTAINER
+FROM jupyter/r-notebook
 
 LABEL maintainer="Tiffany Timbers <tiffany.timbers@gmail.com>"
 

r-dsci-grading/Dockerfile

@@ -1,13 +1,9 @@
 # Copyright (c) UBC-DSCI Development Team.
 # Distributed under the terms of the Modified BSD License.
-ARG BASE_CONTAINER=ubcdsci/r-dsci-100:latest
-FROM $BASE_CONTAINER
+FROM r-dsci-100:latest
 
 LABEL maintainer="Tiffany Timbers <tiffany.timbers@stat.ubc.ca>"
 
-# switch to root for installation
-#USER root
-
 RUN mamba install --quiet --yes "rise"
 
 # install nbgrader and rise extension
@@ -18,12 +14,3 @@ RUN mamba install --quiet --yes "nbgrader=0.7.1" \
 
 RUN mamba clean --all -f -y 
 
-# downgrade nbgrader to 5.6.1 so that feedback forms can be generated
-#RUN pip install "nbconvert<6"
-
-# downgrade jupyter-client to 6.1.12 / nbclient to 0.5.3 to avoid errors with coroutines
-#RUN pip install nbclient==0.5.3
-#RUN pip install jupyter-client==6.1.12
-
-# switch user
-#USER $NB_UID