not only... the variables that are in /etc/default/systemd are not being used by the docker.system file
I had to add the EnvironmentFile key (after having seen this thread/bug report) and also the $DOCKER_OPTS in the ExecStart value [originally it is NOT there] [Unit] Description=Docker Application Container Engine Documentation=https://docs.docker.com After=network.target docker.socket Requires=docker.socket [Service] Type=notify EnvironmentFile=-/etc/default/docker ExecStart=/usr/bin/docker daemon $DOCKER_OPTS -H fd:// MountFlags=slave LimitNOFILE=1048576 LimitNPROC=1048576 LimitCORE=infinity [Install] WantedBy=multi-user.target -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1469204 Title: /etc/default/docker format is wrong for systemd service To manage notifications about this bug go to: https://bugs.launchpad.net/hundredpapercuts/+bug/1469204/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs