Add cats to the docker-compose setup

cats.Dockerfile

@@ -0,0 +1,42 @@
+FROM debian:jessie
+
+RUN apt-get update \
+    && DEBIAN_FRONTEND=noninteractive \
+    apt-get install -y --no-install-recommends \
+    ca-certificates \
+    curl \
+    gettext \
+    libapache2-mod-php5 \
+    locales-all \
+    nullmailer \
+    php5-mysql \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/*
+
+STOPSIGNAL SIGWINCH
+
+COPY docker/apache-cats-foreground /usr/local/bin/
+COPY testca/root/ca.crt.pem /usr/local/share/ca-certificates/testca_root.crt
+COPY testca/class3/ca.crt.pem /usr/local/share/ca-certificates/testca_class3.crt
+COPY testca/certs/cats.cacert.localhost.crt.pem /etc/apache2/ssl/certs/
+COPY testca/certs/cats.cacert.localhost.key.pem /etc/apache2/ssl/private/
+COPY testca/certs/cachain.crt.pem /etc/apache2/ssl/certs/combined.crt
+COPY testca/class3/ca.crt.pem /etc/apache2/ssl/certs/clientca.crt
+
+COPY docker/apache-cats-virtualhost.conf /etc/apache2/sites-available/cats.cacert.localhost.conf
+
+VOLUME /var/www/cats
+
+RUN a2ensite cats.cacert.localhost ; \
+    a2dissite 000-default ; \
+    a2enmod headers ; \
+    a2enmod rewrite ; \
+    a2enmod ssl ; \
+    cd /usr/local/share/ca-certificates ; \
+    curl -O http://www.cacert.org/certs/root_X0F.crt ; \
+    curl -O http://www.cacert.org/certs/class3_X0E.crt ; \
+    update-ca-certificates
+
+EXPOSE 443
+
+CMD ["/usr/local/bin/apache-cats-foreground"]