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Update repo

apt-get update
apt-get install -y --no-install-recommends apt-transport-https ca-certificates curl software-properties-common

Get docker repo

curl -fsSL https://apt.dockerproject.org/gpg | sudo apt-key add -
add-apt-repository "deb https://apt.dockerproject.org/repo/ debian-$(lsb_release -cs) main"

Re-update depo

apt-get update

Install docker

apt-get -y install docker-engine

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