feat: add matlab enabled Docker image

.github/workflows/build_and_push_to_docker.yml

@@ -71,6 +71,40 @@ jobs:
         EXTENSION: ${{ matrix.EXTENSIONS }}
         DOCKER_NAME: "renku/renkulab"
 
+  build-vnc-ext:
+    needs: build-py-ext
+    runs-on: ubuntu-latest
+
+    strategy:
+      fail-fast: true
+      matrix:
+        VNC-EXTENSIONS:
+          - matlab
+
+    steps:
+    - name: Docker Login
+      uses: Azure/docker-login@v1
+      with:
+        username: ${{ secrets.DOCKER_USERNAME }}
+        password: ${{ secrets.DOCKER_PASSWORD }}
+
+    - uses: actions/checkout@v2
+    - name: Build renku project python-based docker image extensions
+      run: |
+        if [[ ${{ github.ref }} == refs/tags* ]]; then
+          export LABEL=$(echo ${{ github.ref }} | cut -d / -f 3)
+        else
+          export LABEL=$(echo ${{ github.sha }} | cut -c 1-7)
+        fi
+
+        docker build docker/$EXTENSION \
+          --build-arg BASE_IMAGE="$DOCKER_NAME-vnc:$LABEL" \
+          --tag $DOCKER_NAME-$EXTENSION:$LABEL
+        docker push $DOCKER_NAME-$EXTENSION:$LABEL
+      env:
+        EXTENSION: ${{ matrix.VNC-EXTENSIONS }}
+        DOCKER_NAME: "renku/renkulab"
+
   build-py-batch:
     needs: build-py
     runs-on: ubuntu-latest

docker/matlab/Dockerfile

@@ -0,0 +1,116 @@
+# Copyright 2021 The MathWorks, Inc.
+# https://github.com/mathworks-ref-arch/matlab-integration-for-jupyter/blob/main/matlab/Dockerfile
+
+# Argument shared across multi-stage build to hold location of installed MATLAB 
+ARG BASE_ML_INSTALL_LOC=/tmp/matlab-install-location
+
+# For finding latest versions of the base image see
+# https://github.com/SwissDataScienceCenter/renkulab-docker
+ARG BASE_IMAGE=renku/renkulab-vnc:latest
+
+# Replace "mathworks/matlab" with any Docker image that contains MATLAB
+# MATLAB should be available on the path in the Docker image
+FROM mathworks/matlab:r2021b AS matlab-install-stage
+ARG BASE_ML_INSTALL_LOC
+
+# Run code to locate a MATLAB install in the base image and softlink
+# to BASE_ML_INSTALL_LOC for a latter stage to copy 
+RUN export ML_INSTALL_LOC=$(which matlab) \
+    && if [ ! -z "$ML_INSTALL_LOC" ]; then \
+        ML_INSTALL_LOC=$(dirname $(dirname $(readlink -f ${ML_INSTALL_LOC}))); \
+        echo "soft linking: " $ML_INSTALL_LOC " to" ${BASE_ML_INSTALL_LOC}; \
+        ln -s ${ML_INSTALL_LOC} ${BASE_ML_INSTALL_LOC}; \
+    elif [ $BASE_ML_INSTALL_LOC = '/tmp/matlab-install-location' ]; then \
+        echo "MATLAB was not found in your image."; exit 1; \
+    else \
+        echo "Proceeding with user provided path to MATLAB installation: ${BASE_ML_INSTALL_LOC}"; \
+    fi
+
+FROM ${BASE_IMAGE}
+# Use Renku instead of the base notebook
+# FROM jupyter/base-notebook
+ARG BASE_ML_INSTALL_LOC
+
+# Switch to root user
+USER root
+
+# Copy MATLAB install from supplied Docker image
+COPY --from=matlab-install-stage ${BASE_ML_INSTALL_LOC} /usr/local/MATLAB
+
+# Put MATLAB on the PATH
+RUN ln -s /usr/local/MATLAB/bin/matlab /usr/local/bin/matlab
+
+## Install MATLAB dependencies
+# Please update this list for the version of MATLAB you are using.
+# Listed below are the dependencies of R2021b for Ubuntu 20.04
+# Reference: https://github.com/mathworks-ref-arch/container-images/tree/master/matlab-deps/r2021b
+RUN export DEBIAN_FRONTEND=noninteractive && apt-get update && apt-get install --no-install-recommends -y \
+    ca-certificates \
+    libasound2 \
+    libatk-bridge2.0-0 \
+    libatk1.0-0 \
+    libatspi2.0-0 \
+    libc6 \
+    libcairo-gobject2 \
+    libcairo2 \
+    libcap2 \
+    libcrypt1 \
+    libcups2 \
+    libdbus-1-3 \
+    libdrm2 \
+    libfontconfig1 \
+    libgbm1 \
+    libgdk-pixbuf2.0-0 \
+    libglib2.0-0 \
+    libgomp1 \
+    libgstreamer-plugins-base1.0-0 \
+    libgstreamer1.0-0 \
+    libgtk-3-0 \
+    libnspr4 \
+    libnss3 \
+    libodbc1 \
+    libpam0g \
+    libpango-1.0-0 \
+    libpangocairo-1.0-0 \
+    libpangoft2-1.0-0 \
+    libpython3.9 \
+    libsm6 \
+    libsndfile1 \
+    libssl1.1 \
+    libuuid1 \
+    libx11-6 \
+    libx11-xcb1 \
+    libxcb-dri3-0 \
+    libxcb1 \
+    libxcomposite1 \
+    libxcursor1 \
+    libxdamage1 \
+    libxext6 \
+    libxfixes3 \
+    libxft2 \
+    libxi6 \
+    libxinerama1 \
+    libxrandr2 \
+    libxrender1 \
+    libxt6 \
+    libxtst6 \
+    libxxf86vm1 \
+    locales \
+    locales-all \
+    make \
+    net-tools \
+    procps \
+    sudo \
+    unzip \
+    zlib1g \ 
+    xvfb \
+    && apt-get clean \
+    && apt-get -y autoremove \
+    && rm -rf /var/lib/apt/lists/*
+
+# Add MATLAB desktop icon
+COPY --chown=root:root matlab.desktop /home/jovyan/Desktop/
+RUN chmod +x /home/jovyan/Desktop/matlab.desktop
+
+# Switch back to notebook user
+USER ${NB_USER}

docker/matlab/matlab.desktop

@@ -0,0 +1,14 @@
+[Desktop Entry]
+Version=R2021b
+Name=MATLAB R2021b
+GenericName=MATLAB
+X-GNOME-FullName=MATLAB
+Comment=Multi-paradigm programming language and numeric computing environment
+Type=Application
+Categories=Programming;Science;Computing;
+Exec=matlab -desktop -sd ${NOTEBOOK_DIR}
+TryExec=/usr/local/bin/matlab -desktop -sd ${NOTEBOOK_DIR}
+Terminal=false
+StartupNotify=true
+Icon=/usr/local/MATLAB/bin/glnxa64/cef_resources/matlab_icon.png
+StartupWMClass=MATLAB-main