Multiple revisions based on feedback.

Contribution (c) Copyright IBM Corp. 2016

minimal-kernel/Dockerfile

@@ -12,12 +12,8 @@ RUN apt-get update && apt-get install -yq --no-install-recommends \
     build-essential \
     python3-dev \
     python3-pip \
-    ca-certificates \
-    bzip2 \
-    unzip \
     libsm6 \
     python3-zmq \
-    sudo \
     && apt-get clean
 
 # Install Tini
@@ -26,22 +22,15 @@ RUN wget --quiet https://github.com/krallin/tini/releases/download/v0.6.0/tini &
     mv tini /usr/local/bin/tini && \
     chmod +x /usr/local/bin/tini
 
-# Configure environment
-ENV SHELL /bin/bash
-ENV NB_USER nobody
-ENV NB_UID 1000
-
 # Install Kernel Gateway
 RUN pip3 install jupyter_kernel_gateway==0.2.0
 
 # Configure container startup
-USER $NB_USER
+USER nobody
 EXPOSE 8888
-WORKDIR /home/$NB_USER/work
+WORKDIR /tmp
 ENTRYPOINT ["tini", "--", "jupyter", "kernelgateway"]
 CMD ["--KernelGatewayApp.ip=0.0.0.0"]
 
-# Add local files as late as possible to avoid cache busting
-USER root
-COPY jupyter_kernel_gateway_config.py /home/$NB_USER/.jupyter/
+#error Permission denied: '/nonexistent' when not running as root or as user nobody
+USER root
\ No newline at end of file
-RUN chown -R $NB_USER:users /home/$NB_USER/.jupyter

minimal-kernel/README.md

 # Kernel Gateway Stack
 
 ## What it Gives You
-* [Jupyter Kernel Gateway](https://github.com/jupyter-incubator/kernel_gateway) that spawns minimal Jupyter Python kernel
+* [Jupyter Kernel Gateway](https://github.com/jupyter-incubator/kernel_gateway) that enables programmatic access to kernels
 * No preinstalled scientific computing packages
-* Unprivileged user `jovyan` (uid=1000, configurable, see options) in group `users` (gid=100) with ownership over `/home/jovyan`
 * [tini](https://github.com/krallin/tini) as the container entrypoint
-* Options for Port and Ip address
-
 
 ## Basic Use
 
@@ -16,9 +13,6 @@ The following command starts a container with the Kernel Gateway server listenin
 docker run -d -p 8888:8888 jupyter/minimal-kernel
 ```
 
-## Docker Options
-
-You may customize the execution of the Docker container and the Notebook server it contains with the following optional arguments.
-
+## Docker Options and More Information
+* For more information on the Kernel Gateway and its configuration options see the
+[Kernel Gateway Repository](https://github.com/jupyter-incubator/kernel_gateway#what-it-gives-you).
\ No newline at end of file
-* `-e INTERFACE=10.10.10.10` - Configures Kernel Gateway to listen on the given interface. Defaults to '0.0.0.0', all interfaces, which is appropriate when running using default bridged Docker networking. When using Docker's `--net=host`, you may wish to use this option to specify a particular network interface.
-* `-e PORT=8888` - Configures Kernel Gateway to listen on the given port. Defaults to 8888, which is the port exposed within the Dockerfile for the image. When using Docker's `--net=host`, you may wish to use this option to specify a particular port.
\ No newline at end of file

minimal-kernel/jupyter_kernel_gateway_config.py

-# Copyright (c) Jupyter Development Team.
-
-import os
-
-c = get_config()
-c.KernelGatewayApp.ip = os.getenv('INTERFACE', '') or '0.0.0.0'
-c.KernelGatewayApp.port = int(os.getenv('PORT', '') or 8888)