RUN apt-get update \
  && apt-get install apt-transport-https ca-certificates \
  && echo "deb https://apt.dockerproject.org/repo debian-jessie main" > /etc/apt/sources.list.d/docker.list \
  && apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D \
  && apt-get update \
  && apt-get install -y docker-engine