add john the ripper

Signed-off-by: Jessica Frazelle <acidburn@docker.com>

john/Dockerfile

@@ -0,0 +1,37 @@
+FROM debian:sid
+MAINTAINER Jessica Frazelle <jess@docker.com>
+
+RUN apt-get update && apt-get install -y \
+	libgmp10 \
+	libgomp1 \
+	libkrb5-3 \
+	libnss3 \
+	libssl1.0.0 \
+	openssl \
+	--no-install-recommends \
+	&& rm -rf /var/lib/apt/lists/*
+
+RUN buildDeps=' \
+		ca-certificates \
+		gcc \
+		git \
+		libgmp-dev \
+		libkrb5-dev \
+		libnss3-dev \
+		libssl-dev \
+		make \
+	' \
+	&& set -x \
+	&& apt-get update && apt-get install -y $buildDeps --no-install-recommends \
+	&& rm -rf /var/lib/apt/lists/* \
+	&& git clone https://github.com/magnumripper/JohnTheRipper.git /usr/src/johntheripper \
+	&& cd /usr/src/johntheripper/src \
+	&& ./configure \
+	&& make \
+	&& cp -r ../run/* /usr/local/bin/ \
+	&& rm -rf /usr/src/johntheripper \
+	&& apt-get purge -y --auto-remove $buildDeps
+
+WORKDIR /root
+
+ENTRYPOINT [ "john" ]