# Pastebin L3MTjp9F
agent@agent-virtual-machine:~$ apt-key adv --keyserver hkp://pgp.mit.edu:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D
Executing: gpg --ignore-time-conflict --no-options --no-default-keyring --homedir /tmp/tmp.4MveoS8Wlz --no-auto-check-trustdb --trust-model always --keyring /etc/apt/trusted.gpg --primary-keyring /etc/apt/trusted.gpg --keyring /etc/apt/trusted.gpg.d/ubuntu-wine-ppa.gpg --keyserver hkp://pgp.mit.edu:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D
gpg: requesting key 2C52609D from hkp server pgp.mit.edu
gpg: key 2C52609D: "Docker Release Tool (releasedocker) <docker@docker.com>" not changed
gpg: Total number processed: 1
gpg:              unchanged: 1
agent@agent-virtual-machine:~$ cat /etc/apt/sources.list.d/docker.list
deb https://apt.dockerproject.org/repo ubuntu-trusty main
agent@agent-virtual-machine:~$ lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 14.04.1 LTS
Release:	14.04
Codename:	trusty
agent@agent-virtual-machine:~$ apt-cache policy docker-engine
N: Unable to locate package docker-engine