Added docker and first exercise

docker_build.sh

@@ -0,0 +1,83 @@
+#! /usr/bin/env bash
+
+
+if [ "$1" == "-h" ] || [ "$1" == "--help" ]; then
+    echo "Usage: docker_build.sh"
+    echo "Builds a docker image with a user that matches the username and uid of the host user."
+fi
+
+uid=$(id -u)
+username=$(whoami)
+password='password'    # dummy password
+out="Dockerfile"
+
+if [ "$1" == "sample" ]; then
+    out="Dockerfile.sample"
+    uid="1000"
+    username="user"
+fi
+
+echo "Using username: $username with uid: $uid"
+echo "The default password is: $password"
+
+cat << EOF > $out
+FROM ubuntu:16.04
+
+RUN  apt-get update && apt-get install -y zsh \\
+                     vim \\
+                     tmux \\
+                     git \\
+                     python3-numpy \\
+                     python3-scipy \\
+                     python3-matplotlib \\
+                     ipython3 \\
+                     python3-pip \\
+                     python-pillow \\
+                     python-pip \\
+                     python-numpy \\
+                     python-scipy \\
+                     python-matplotlib \\
+                     ipython \\
+                     python-pil \\
+                     python-pillow \\
+                     python-pip
+
+
+ENV LC_ALL en_US.UTF-8
+RUN locale-gen en_US.UTF-8
+
+RUN pip3 install jupyter scikit-image ipykernel
+RUN pip install jupyter scikit-image ipykernel
+
+RUN ipython3 kernel install
+RUN ipython kernel install
+
+# Use the same gid and uid as your user on the host system. You can find them
+# out with the id  programm. This way the file ownership in mapped directories is
+# consistent with the host system.
+RUN echo "%sudo ALL=(ALL) ALL" >> /etc/sudoers
+RUN groupadd --gid $uid $username
+RUN useradd --uid $uid  --gid $username \\
+    --home-dir /home/$username --shell /usr/bin/bash  \\
+    --groups sudo,$username \\
+    --password $password \\
+    $username
+
+
+# set default passwords
+RUN echo $username:$password | chpasswd && \\
+    echo root:$password | chpasswd
+
+RUN mkdir -p /home/$username && chown -R $username:$username /home/$username
+
+USER $username
+WORKDIR /home/$username'
+
+RUN echo "PATH=$PATH:/usr/local/bin:~/.local/bin/" > /home/$username/.bashrc
+
+CMD ["sh", "-c", "jupyter notebook --ip 0.0.0.0"]
+EOF
+
+if [ "$1" != "sample" ]; then
+    docker build -t 'image_processing_ss16' .
+fi