Added support for custom BASE_DIR and entrypoint commands in the Jupyter Notebooks container.

#/bin/bash

# Set port

if [[ "x$@" == "x" ]] ; then

    # Set port (defaults to 8888)

    if [ "x$BASE_PORT" == "x" ]; then

        BASE_PORT=8888

        echo "[INFO] using default Notebook server port (8888)"

        echo "[INFO] Setting Notebook server port to $BASE_PORT" 

    fi

# Set password

    # Set password (defaults to none)

    if [ "x$AUTH_PASS" == "x" ]; then

        echo "[INFO] Not using anyNotebook server password" 

    else

        echo "[INFO] Setting Notebook server password to $AUTH_PASS" 

    fi

# Create Notebooks dir if not existent

mkdir -p /home/metauser/notebooks

    # Set base dir (defaults to root).

    if [ "x$BASE_DIR" == "x" ]; then

        BASE_DIR='/'

    else

        BASE_DIR="'$BASE_DIR'"

    fi

    # Run the Jupyter Notebook server.  Use --allow-root if need to run as root. 

exec jupyter notebook --ip=0.0.0.0 --port=$BASE_PORT --no-browser --NotebookApp.token=$AUTH_PASS --NotebookApp.notebook_dir='/home/metauser/notebooks'

    exec jupyter notebook --ip=0.0.0.0 --port=$BASE_PORT --no-browser --NotebookApp.token=$AUTH_PASS --NotebookApp.notebook_dir=$BASE_DIR

else

    ENTRYPOINT_COMMAND=$@

    echo -n "Executing Docker entrypoint command: "

    echo $ENTRYPOINT_COMMAND

    exec /bin/bash -c "$ENTRYPOINT_COMMAND"

fi

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