I tested this with a Kubernetes 1.3 cluster and verified it was functional.

Installed on a vanilla F23 box and did not edit any unit files, and get following error:

sudo systemctl status docker ● docker.service - Docker Application Container Engine Loaded: loaded (/etc/systemd/system/docker.service; disabled; vendor preset: disabled) Active: failed (Result: exit-code) since Wed 2016-06-08 15:58:16 EDT; 7s ago Docs: http://docs.docker.com Process: 16020 ExecStart=/usr/bin/docker -d $OPTIONS $DOCKER_STORAGE_OPTIONS $DOCKER_NETWORK_OPTIONS $INSECURE_REGISTRY (code=exited, status=125) Main PID: 16020 (code=exited, status=125)

Jun 08 15:58:16 localhost.localdomain systemd[1]: Started Docker Application Container Engine. Jun 08 15:58:16 localhost.localdomain systemd[1]: Starting Docker Application Container Engine... Jun 08 15:58:16 localhost.localdomain docker[16020]: flag provided but not defined: -d Jun 08 15:58:16 localhost.localdomain docker[16020]: See '/usr/bin/docker --help'. Jun 08 15:58:16 localhost.localdomain systemd[1]: docker.service: Main process exited, code=exited, status=125/n/a Jun 08 15:58:16 localhost.localdomain systemd[1]: docker.service: Unit entered failed state. Jun 08 15:58:16 localhost.localdomain systemd[1]: docker.service: Failed with result 'exit-code'.

it looks like the unit should have docker daemon \ and not docker -d \

derek - that unit file with "/usr/bin/docker -d" is not in the fedora dist-git at all - I'm not sure how you're getting it on a fresh fedora f23 installation - there's not even forward-journald in there (it's just wrong) This is the current unit shipped with this update:

[Unit]
Description=Docker Application Container Engine
Documentation=http://docs.docker.com
After=network.target
Wants=docker-storage-setup.service

[Service]
Type=notify
NotifyAccess=all
EnvironmentFile=-/etc/sysconfig/docker
EnvironmentFile=-/etc/sysconfig/docker-storage
EnvironmentFile=-/etc/sysconfig/docker-network
Environment=GOTRACEBACK=crash
ExecStart=/bin/sh -c '/usr/bin/docker daemon \
          --exec-opt native.cgroupdriver=systemd \
          $OPTIONS \
          $DOCKER_STORAGE_OPTIONS \
          $DOCKER_NETWORK_OPTIONS \
          $INSECURE_REGISTRY \
          2>&1 | /usr/bin/forward-journald -tag docker'
ExecReload=/bin/kill -s HUP $MAINPID
LimitNOFILE=1048576
LimitNPROC=1048576
LimitCORE=infinity
MountFlags=slave
StandardOutput=null
StandardError=null
TimeoutStartSec=0
Restart=on-abnormal

[Install]
WantedBy=multi-user.target

Apologies, user error on my part.