Docker docker docker docker docker

README.md

@@ -4,6 +4,9 @@ This repository contains my solution to 2017's [Advent of Code](https://adventof
 are all written in Python 3; one or two may require the [NumPy](http://www.numpy.org/) package, but the rest should
 work out-of-the-box.
 
+If you have docker installed, simply execute `run.sh` to build a docker image and execute the latest solution
+using pypy3. You can specify other days by passing the script names as arguments (e.g. `run.sh 03.py`).
+
 I tend to focus on short, functional solutions where possible, so they may be a bit hard to read. Some solutions are
 commented to some degree to help with that.
 

docker/Dockerfile

@@ -0,0 +1,11 @@
+FROM pypy:3
+
+RUN pip3 install numpy
+
+ADD entrypoint.sh /entrypoint.sh
+RUN chmod +x /entrypoint.sh
+
+USER nobody
+
+CMD /entrypoint.sh
+VOLUME /code

docker/entrypoint.sh

@@ -0,0 +1,4 @@
+#!/bin/bash
+
+cd /code
+time pypy3 ${1:-$(find -regex './[0-9]+.py' | sort | tail -n 1)}

run.sh

@@ -0,0 +1,14 @@
+#!/bin/bash
+
+IMAGE=csmith/aoc-2017-01
+
+docker image inspect $IMAGE >/dev/null 2>&1
+if [ $? -ne 0 ]
+then
+    echo "One time setup: building docker image..."
+    cd docker
+    docker build . -t $IMAGE
+    cd ..
+fi
+
+docker run --rm -it -v $(pwd):/code $IMAGE /entrypoint.sh $@