Current contents of /etc/conf.d/docker ----- # where the docker daemon output gets piped #DOCKER_LOGFILE="/var/log/docker.log" # where docker's pid get stored #DOCKER_PIDFILE="/run/docker.pid" # where the docker daemon itself is run from #DOCKERD_BINARY="/usr/bin/dockerd" # any other random options you want to pass to docker DOCKER_OPTS="" ----- Although all of these are specific to the 'dockerd' program (and not the 'docker' program, which is the client), only one of them has a DOCKERD_ prefix, and the other three have DOCKER_ prefixes. I would recommend normalizing all of these to DOCKERD_, as well as updating the comments appropriately, ie. ----- # where the docker daemon output gets piped #DOCKERD_LOGFILE="/var/log/docker.log" # where the docker daemon's pid gets stored #DOCKERD_PIDFILE="/run/docker.pid" # where the docker daemon itself is run from #DOCKERD_BINARY="/usr/bin/dockerd" # any other random options you want to pass to the docker daemon DOCKERD_OPTS="" -----
