change docker daemon setting on all node
Simple add this line into your Docker config file /etc/default/docker.
DOCKER_OPTS="$DOCKER_OPTS -H tcp://0.0.0.0:2375 -H unix:///var/run/docker.sock --api-cors-header='*' --default-ulimit=nofile=8192:16384 --default-ulimit=nproc=8192:16384"Then restart the docker daemon with:
$ sudo service docker restart