On Ubuntu 16.04, after running
apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D and creating /etc/apt/sources.list.d/docker.list:
# apt install docker-engine Reading package lists... Done Building dependency tree Reading state information... Done The following NEW packages will be installed: docker-engine 0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded. Need to get 0 B/14.5 MB of archives. After this operation, 73.4 MB of additional disk space will be used. WARNING: The following packages cannot be authenticated! docker-engine Install these packages without verification? [y/N]
This was working earlier today prior to the release of 1.11.1. I’m trying to determine whether this is operator error or a problem with the package file. If I am able to make a conclusive determination, I will post a follow-up.