Use R packages from conda-forge

all-spark-notebook/Dockerfile

@@ -20,8 +20,7 @@ RUN apt-get update && \
 USER $NB_USER
 
 # R packages
-RUN conda config --system --add channels r && \
-    conda install --quiet --yes \
+RUN conda install --quiet --yes \
     'r-base=3.3.2' \
     'r-irkernel=0.7*' \
     'r-ggplot2=2.2*' \

minimal-notebook/Dockerfile

@@ -9,24 +9,25 @@ USER root
 
 # Install all OS dependencies for fully functional notebook server
 RUN apt-get update && apt-get install -yq --no-install-recommends \
+    build-essential \
+    emacs \
     git \
-    vim \
+    inkscape \
     jed \
-    emacs \
-    build-essential \
-    python-dev \
-    unzip \
     libsm6 \
+    libxext-dev \
+    libxrender1 \
+    lmodern \
     pandoc \
-    texlive-latex-base \
-    texlive-latex-extra \
+    python-dev \
     texlive-fonts-extra \
     texlive-fonts-recommended \
     texlive-generic-recommended \
+    texlive-latex-base \
+    texlive-latex-extra \
     texlive-xetex \
-    lmodern \
-    libxrender1 \
-    inkscape \
+    vim \
+    unzip \
     && apt-get clean && \
     rm -rf /var/lib/apt/lists/*
 

r-notebook/Dockerfile

@@ -17,8 +17,7 @@ RUN apt-get update && \
 USER $NB_USER
 
 # R packages
-RUN conda config --system --add channels r && \
-    conda install --quiet --yes \
+RUN conda install --quiet --yes \
     'r-base=3.3.2' \
     'r-irkernel=0.7*' \
     'r-plyr=1.8*' \