New Dockerfile that generate a Debian package for Mcrypt perl module

perl-mcrypt/Dockerfile

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+FROM       debian:wheezy
+MAINTAINER Pierre-Olivier Mercier <nemunaire@nemunai.re>
+
+# Install packages ####################################################
+
+RUN apt-get -y update && \
+    apt-get install -y \
+	    libmcrypt-dev \
+	    libltdl-dev \
+	    build-essential \
+	    dh-make-perl \
+    && \
+    apt-get clean && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
+
+CMD cpan2deb Mcrypt

perl-mcrypt/README.md

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+# Mcrypt module
+
+This container creates Debian package for the `Mcrypt` module.
+
+
+## Usage
+
+First, build the container:
+
+```
+docker build -t mcrypt-builder .
+```
+
+Run the container then retrieve the package:
+
+```
+docker run --name mcrypt_builder mcrypt-builder
+docker cp mcrypt_builder:$(docker diff mcrypt_builder | grep -oE '[^ ]+deb$') ./
+docker rm mcrypt_builder
+```
+
+In your current directory, you will have a file named like:
+`libmcrypt-perl_2.5.7.0-1_amd64.deb`.