Dockerfile in minke-1.12.4

- old
+ new
@@ -1,18 +1,30 @@
 FROM debian:stable
 
 ENV COMPOSE_VERSION 1.7.1
 ENV PATH /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
 
+  # Build-time metadata as defined at http://label-schema.org
+  ARG BUILD_DATE
+  ARG VCS_REF
+  LABEL org.label-schema.build-date=$BUILD_DATE \
+        org.label-schema.docker.dockerfile="/docker/Dockerfile" \
+        org.label-schema.license="MIT" \
+        org.label-schema.name="Minke" \
+        org.label-schema.url="https://minke.rocks" \
+        org.label-schema.vcs-ref=$VCS_REF \
+        org.label-schema.vcs-type="Git" \
+        org.label-schema.vcs-url="https://github.com/nicholasjackson/minke"
+
 RUN apt-get update
 RUN apt-get -y install procps build-essential openssl libreadline6 libreadline6-dev curl git-core zlib1g zlib1g-dev libssl-dev libyaml-dev libxml2-dev libxslt-dev autoconf libc6-dev ncurses-dev automake libtool bison rubygems ca-certificates apt-transport-https
 
 RUN apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D
 
 RUN echo "deb https://apt.dockerproject.org/repo debian-jessie main" > /etc/apt/sources.list.d/docker.list
 
 RUN apt-get update
-RUN apt-get -y install docker-engine=1.9.0-0~jessie
+RUN apt-get -y install docker-engine
 
 RUN gpg --keyserver hkp://keys.gnupg.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 && curl -L get.rvm.io | bash -s stable --ruby=2.3.1 --with-gems="bundle"
 
 RUN curl -o /usr/local/bin/docker-compose -L \
 		"https://github.com/docker/compose/releases/download/${COMPOSE_VERSION}/docker-compose-Linux-x86_64" \