[root@node121 ~]# docker --help
Usage: docker [OPTIONS] COMMAND [arg...]
A self-sufficient runtime for linux containers.
Options:
--api-cors-header= Set CORS headers in the remote API
-b,--bridge= Attachcontainers to a network bridge
--bip= Specify networkbridge IP
-D,--debug=false Enabledebug mode
-d,--daemon=false Enabledaemon mode
--default-gateway= Container default gateway IPv4 address
--default-gateway-v6= Container default gateway IPv6 address
--default-ulimit=[] Set default ulimits for containers
--dns=[] DNS server to use
--dns-search=[] DNS search domains to use
-e,--exec-driver=native Execdriver to use
--exec-opt=[] Set exec driver options
--exec-root=/var/run/docker Root of the Docker execdriver
--fixed-cidr= IPv4 subnet for fixed IPs
--fixed-cidr-v6= IPv6 subnet for fixed IPs
-G,--group=docker Groupfor the unix socket
-g,--graph=/var/lib/docker Root ofthe Docker runtime
-H,--host=[] Daemonsocket(s) to connect to
-h,--help=false Printusage
--icc=true Enableinter-container communication
--insecure-registry=[] Enable insecure registry communication
--ip=0.0.0.0 Default IP whenbinding container ports
--ip-forward=true Enable net.ipv4.ip_forward
--ip-masq=true Enable IP masquerading
--iptables=true Enable addition of iptables rules
--ipv6=false Enable IPv6 networking
-l, --log-level=info Set the logging level
--label=[] Set key=value labelsto the daemon
--log-driver=json-file Default driver for container logs
--log-opt=map[] Set log driver options
--mtu=0 Set thecontainers network MTU
-p,--pidfile=/var/run/docker.pid Path touse for daemon PID file
--registry-mirror=[] Preferred Docker registry mirror
-s,--storage-driver= Storagedriver to use
--selinux-enabled=false Enable selinux support
--storage-opt=[] Set storage driver options
--tls=false Use TLS; implied by--tlsverify
--tlscacert=~/.docker/ca.pem Trust certs signed only by this CA
--tlscert=~/.docker/cert.pem Path to TLS certificate file
--tlskey=~/.docker/key.pem Path to TLS key file
--tlsverify=false Use TLS and verify the remote
--userland-proxy=true Use userland proxy for loopbacktraffic
-v,--version=false Printversion information and quit
Commands:
attach Attach to a running container
build Build an image from a Dockerfile
commit Create a new image from a container'schanges
cp Copy files/folders from a container'sfilesystem to the host path
create Create a new container
diff Inspect changes on a container'sfilesystem
events Get real time events from the server
exec Run a command in a running container
export Stream the contents of a container as a tararchive
history Show the history of an image
images List images
import Create a new filesystem image from thecontents of a tarball
info Display system-wide information
inspect Return low-level information on a containeror image
kill Kill a running container
load Load an image from a tar archive
login Register or log in to a Docker registry server
logout Log out from a Docker registry server
logs Fetch the logs of a container
pause Pause all processes within a container
port Lookup the public-facing port that isNAT-ed to PRIVATE_PORT
ps List containers
pull Pull an image or a repository from aDocker registry server
push Push an image or a repository to a Dockerregistry server
rename Rename an existing container
restart Restart a running container
rm Remove one or more containers
rmi Remove one or more images
run Run a command in a new container
save Save an image to a tar archive
search Search for an image on the Docker Hub
start Start a stopped container
stats Display a stream of a containers' resourceusage statistics
stop Stop a running container
tag Tag an image into a repository
top Lookup the running processes of acontainer
unpause Unpause a paused container
version Show the Docker version information
wait Block until a container stops, then printits exit code
Run 'docker COMMAND --help' for more information on acommand.