added sage build

jupyter/build/sage.Dockerfile

@@ -0,0 +1,65 @@
+ARG BASE_CONTAINER=betalupi/jupyter-base
+FROM $BASE_CONTAINER
+LABEL maintainer="Mark <mark@betalupi.com>"
+
+ARG SAGE_VERSION=9.0
+ARG SAGE_PYTHON_VERSION=3.7
+
+USER root
+
+RUN apt-get update --yes && apt-get install --yes --no-install-recommends \
+		dvipng \
+		ffmpeg \
+		imagemagick \
+		texlive \
+		tk tk-dev \
+		jq && \
+	apt-get clean && rm -rf /var/lib/apt/lists/*
+
+
+USER $NB_UID
+
+# Initialize conda for shell interaction
+RUN conda init bash
+
+# Install Sage conda environment
+RUN conda install --quiet --yes -n base -c conda-forge widgetsnbextension && \
+	conda create --quiet --yes -n sage -c conda-forge sage=$SAGE_VERSION python=$SAGE_PYTHON_VERSION && \
+	conda clean --all -f -y && \
+	npm cache clean --force && \
+	fix-permissions $CONDA_DIR && \
+	fix-permissions /home/$NB_USER
+
+# Install sagemath kernel and extensions using conda run:
+#	Create jupyter directories if they are missing
+#	Add environmental variables to sage kernal using jq
+RUN echo ' \
+		from sage.repl.ipython_kernel.install import SageKernelSpec; \
+		SageKernelSpec.update(prefix=os.environ["CONDA_DIR"]); \
+	' | conda run -n sage sage && \
+	echo ' \
+		cat $SAGE_ROOT/etc/conda/activate.d/sage-activate.sh | \
+			grep -Po '"'"'(?<=^export )[A-Z_]+(?=)'"'"' | \
+			jq --raw-input '"'"'.'"'"' | jq -s '"'"'.'"'"' | \
+			jq --argfile kernel $SAGE_LOCAL/share/jupyter/kernels/sagemath/kernel.json \
+			'"'"'. | map(. as $k | env | .[$k] as $v | {($k):$v}) | add as $vars | $kernel | .env= $vars'"'"' > \
+			$CONDA_DIR/share/jupyter/kernels/sagemath/kernel.json \
+	' | conda run -n sage sh && \
+	fix-permissions $CONDA_DIR && \
+	fix-permissions /home/$NB_USER
+
+# Install sage's python kernel
+RUN echo ' \
+		ls /opt/conda/envs/sage/share/jupyter/kernels/ | \
+			grep -Po '"'"'python\d'"'"' | \
+			xargs -I % sh -c '"'"' \
+				cd $SAGE_LOCAL/share/jupyter/kernels/% && \
+				cat kernel.json | \
+					jq '"'"'"'"'"'"'"'"' . | .display_name = .display_name + " (sage)" '"'"'"'"'"'"'"'"' > \
+					kernel.json.modified && \
+				mv -f kernel.json.modified kernel.json && \
+				ln -s $SAGE_LOCAL/share/jupyter/kernels/% $CONDA_DIR/share/jupyter/kernels/%_sage \
+			'"'"' \
+	' | conda run -n sage sh && \
+	fix-permissions $CONDA_DIR && \
+	fix-permissions /home/$NB_USER