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Merge pull request #10547 from duglin/Issue10214 

Pretty the help text
This commit is contained in:
Jessie Frazelle 2015-02-04 11:31:18 -08:00
parent 8a91926cd9 2203b37733
commit a271eaeba2
9 changed files with 250 additions and 145 deletions
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48
api/client/commands.go
View File

@ -79,13 +79,13 @@ func (cli *DockerCli) CmdHelp(args ...string) error {
func (cli *DockerCli) CmdBuild(args ...string) error {
cmd := cli.Subcmd("build", "PATH | URL | -", "Build a new image from the source code at PATH", true)
tag := cmd.String([]string{"t", "-tag"}, "", "Repository name (and optionally a tag) to be applied to the resulting image in case of success")
tag := cmd.String([]string{"t", "-tag"}, "", "Repository name (and optionally a tag) for the image")
suppressOutput := cmd.Bool([]string{"q", "-quiet"}, false, "Suppress the verbose output generated by the containers")
noCache := cmd.Bool([]string{"#no-cache", "-no-cache"}, false, "Do not use cache when building the image")
rm := cmd.Bool([]string{"#rm", "-rm"}, true, "Remove intermediate containers after a successful build")
forceRm := cmd.Bool([]string{"-force-rm"}, false, "Always remove intermediate containers, even after unsuccessful builds")
forceRm := cmd.Bool([]string{"-force-rm"}, false, "Always remove intermediate containers")
pull := cmd.Bool([]string{"-pull"}, false, "Always attempt to pull a newer version of the image")
dockerfileName := cmd.String([]string{"f", "-file"}, "", "Name of the Dockerfile(Default is 'Dockerfile' at context root)")
dockerfileName := cmd.String([]string{"f", "-file"}, "", "Name of the Dockerfile(Default is 'Dockerfile')")
cmd.Require(flag.Exact, 1)
@ -284,7 +284,7 @@ func (cli *DockerCli) CmdBuild(args ...string) error {
// 'docker login': login / register a user to registry service.
func (cli *DockerCli) CmdLogin(args ...string) error {
cmd := cli.Subcmd("login", "[SERVER]", "Register or log in to a Docker registry server, if no server is specified \""+registry.IndexServerAddress()+"\" is the default.", true)
cmd := cli.Subcmd("login", "[SERVER]", "Register or log in to a Docker registry server, if no server is\nspecified \""+registry.IndexServerAddress()+"\" is the default.", true)
cmd.Require(flag.Max, 1)
var username, password, email string
@ -400,7 +400,7 @@ func (cli *DockerCli) CmdLogin(args ...string) error {
// log out from a Docker registry
func (cli *DockerCli) CmdLogout(args ...string) error {
cmd := cli.Subcmd("logout", "[SERVER]", "Log out from a Docker registry, if no server is specified \""+registry.IndexServerAddress()+"\" is the default.", true)
cmd := cli.Subcmd("logout", "[SERVER]", "Log out from a Docker registry, if no server is\nspecified \""+registry.IndexServerAddress()+"\" is the default.", true)
cmd.Require(flag.Max, 1)
utils.ParseFlags(cmd, args, false)
@ -601,8 +601,8 @@ func (cli *DockerCli) CmdInfo(args ...string) error {
}
func (cli *DockerCli) CmdStop(args ...string) error {
cmd := cli.Subcmd("stop", "CONTAINER [CONTAINER...]", "Stop a running container by sending SIGTERM and then SIGKILL after a grace period", true)
nSeconds := cmd.Int([]string{"t", "-time"}, 10, "Number of seconds to wait for the container to stop before killing it. Default is 10 seconds.")
cmd := cli.Subcmd("stop", "CONTAINER [CONTAINER...]", "Stop a running container by sending SIGTERM and then SIGKILL after a\ngrace period", true)
nSeconds := cmd.Int([]string{"t", "-time"}, 10, "Seconds to wait for stop before killing it.")
cmd.Require(flag.Min, 1)
utils.ParseFlags(cmd, args, true)
@ -625,7 +625,7 @@ func (cli *DockerCli) CmdStop(args ...string) error {
func (cli *DockerCli) CmdRestart(args ...string) error {
cmd := cli.Subcmd("restart", "CONTAINER [CONTAINER...]", "Restart a running container", true)
nSeconds := cmd.Int([]string{"t", "-time"}, 10, "Number of seconds to try to stop for before killing the container. Once killed it will then be restarted. Default is 10 seconds.")
nSeconds := cmd.Int([]string{"t", "-time"}, 10, "Seconds to wait for stop before killing the container.")
cmd.Require(flag.Min, 1)
utils.ParseFlags(cmd, args, true)
@ -678,7 +678,7 @@ func (cli *DockerCli) CmdStart(args ...string) error {
tty bool
cmd = cli.Subcmd("start", "CONTAINER [CONTAINER...]", "Restart a stopped container", true)
attach = cmd.Bool([]string{"a", "-attach"}, false, "Attach container's STDOUT and STDERR and forward all signals to the process")
attach = cmd.Bool([]string{"a", "-attach"}, false, "Attach STDOUT/STDERR and forward signals")
openStdin = cmd.Bool([]string{"i", "-interactive"}, false, "Attach container's STDIN")
)
@ -947,7 +947,7 @@ func (cli *DockerCli) CmdTop(args ...string) error {
}
func (cli *DockerCli) CmdPort(args ...string) error {
cmd := cli.Subcmd("port", "CONTAINER [PRIVATE_PORT[/PROTO]]", "List port mappings for the CONTAINER, or lookup the public-facing port that is NAT-ed to the PRIVATE_PORT", true)
cmd := cli.Subcmd("port", "CONTAINER [PRIVATE_PORT[/PROTO]]", "List port mappings for the CONTAINER, or lookup the public-facing port that\nis NAT-ed to the PRIVATE_PORT", true)
cmd.Require(flag.Min, 1)
utils.ParseFlags(cmd, args, true)
@ -1094,7 +1094,7 @@ func (cli *DockerCli) CmdHistory(args ...string) error {
func (cli *DockerCli) CmdRm(args ...string) error {
cmd := cli.Subcmd("rm", "CONTAINER [CONTAINER...]", "Remove one or more containers", true)
v := cmd.Bool([]string{"v", "-volumes"}, false, "Remove the volumes associated with the container")
link := cmd.Bool([]string{"l", "#link", "-link"}, false, "Remove the specified link and not the underlying container")
link := cmd.Bool([]string{"l", "#link", "-link"}, false, "Remove the specified link")
force := cmd.Bool([]string{"f", "-force"}, false, "Force the removal of a running container (uses SIGKILL)")
cmd.Require(flag.Min, 1)
@ -1146,7 +1146,7 @@ func (cli *DockerCli) CmdKill(args ...string) error {
}
func (cli *DockerCli) CmdImport(args ...string) error {
cmd := cli.Subcmd("import", "URL|- [REPOSITORY[:TAG]]", "Create an empty filesystem image and import the contents of the tarball (.tar, .tar.gz, .tgz, .bzip, .tar.xz, .txz) into it, then optionally tag it.", true)
cmd := cli.Subcmd("import", "URL|- [REPOSITORY[:TAG]]", "Create an empty filesystem image and import the contents of the\ntarball (.tar, .tar.gz, .tgz, .bzip, .tar.xz, .txz) into it, then\noptionally tag it.", true)
cmd.Require(flag.Min, 1)
utils.ParseFlags(cmd, args, true)
@ -1309,7 +1309,7 @@ func (cli *DockerCli) CmdPull(args ...string) error {
func (cli *DockerCli) CmdImages(args ...string) error {
cmd := cli.Subcmd("images", "[REPOSITORY]", "List images", true)
quiet := cmd.Bool([]string{"q", "-quiet"}, false, "Only show numeric IDs")
all := cmd.Bool([]string{"a", "-all"}, false, "Show all images (by default filter out the intermediate image layers)")
all := cmd.Bool([]string{"a", "-all"}, false, "Show all images (default hides intermediate images)")
noTrunc := cmd.Bool([]string{"#notrunc", "-no-trunc"}, false, "Don't truncate output")
// FIXME: --viz and --tree are deprecated. Remove them in a future version.
flViz := cmd.Bool([]string{"#v", "#viz", "#-viz"}, false, "Output graph in graphviz format")
@ -1542,12 +1542,12 @@ func (cli *DockerCli) CmdPs(args ...string) error {
cmd = cli.Subcmd("ps", "", "List containers", true)
quiet = cmd.Bool([]string{"q", "-quiet"}, false, "Only display numeric IDs")
size = cmd.Bool([]string{"s", "-size"}, false, "Display total file sizes")
all = cmd.Bool([]string{"a", "-all"}, false, "Show all containers. Only running containers are shown by default.")
all = cmd.Bool([]string{"a", "-all"}, false, "Show all containers (default shows just running)")
noTrunc = cmd.Bool([]string{"#notrunc", "-no-trunc"}, false, "Don't truncate output")
nLatest = cmd.Bool([]string{"l", "-latest"}, false, "Show only the latest created container, include non-running ones.")
since = cmd.String([]string{"#sinceId", "#-since-id", "-since"}, "", "Show only containers created since Id or Name, include non-running ones.")
before = cmd.String([]string{"#beforeId", "#-before-id", "-before"}, "", "Show only container created before Id or Name, include non-running ones.")
last = cmd.Int([]string{"n"}, -1, "Show n last created containers, include non-running ones.")
nLatest = cmd.Bool([]string{"l", "-latest"}, false, "Show the latest created container, include non-running.")
since = cmd.String([]string{"#sinceId", "#-since-id", "-since"}, "", "Show created since Id or Name, include non-running.")
before = cmd.String([]string{"#beforeId", "#-before-id", "-before"}, "", "Show only container created before Id or Name.")
last = cmd.Int([]string{"n"}, -1, "Show n last created containers, include non-running.")
flFilter = opts.NewListOpts(nil)
)
cmd.Require(flag.Exact, 0)
@ -1847,7 +1847,7 @@ func (cli *DockerCli) CmdLogs(args ...string) error {
cmd = cli.Subcmd("logs", "CONTAINER", "Fetch the logs of a container", true)
follow = cmd.Bool([]string{"f", "-follow"}, false, "Follow log output")
times = cmd.Bool([]string{"t", "-timestamps"}, false, "Show timestamps")
tail = cmd.String([]string{"-tail"}, "all", "Output the specified number of lines at the end of logs (defaults to all logs)")
tail = cmd.String([]string{"-tail"}, "all", "Number of lines to show from the end of the logs")
)
cmd.Require(flag.Exact, 1)
@ -1885,7 +1885,7 @@ func (cli *DockerCli) CmdAttach(args ...string) error {
var (
cmd = cli.Subcmd("attach", "CONTAINER", "Attach to a running container", true)
noStdin = cmd.Bool([]string{"#nostdin", "-no-stdin"}, false, "Do not attach STDIN")
proxy = cmd.Bool([]string{"#sig-proxy", "-sig-proxy"}, true, "Proxy all received signals to the process (non-TTY mode only). SIGCHLD, SIGKILL, and SIGSTOP are not proxied.")
proxy = cmd.Bool([]string{"#sig-proxy", "-sig-proxy"}, true, "Proxy all received signals to the process")
)
cmd.Require(flag.Exact, 1)
@ -2202,9 +2202,9 @@ func (cli *DockerCli) CmdRun(args ...string) error {
// These are flags not stored in Config/HostConfig
var (
flAutoRemove = cmd.Bool([]string{"#rm", "-rm"}, false, "Automatically remove the container when it exits (incompatible with -d)")
flDetach = cmd.Bool([]string{"d", "-detach"}, false, "Detached mode: run the container in the background and print the new container ID")
flSigProxy = cmd.Bool([]string{"#sig-proxy", "-sig-proxy"}, true, "Proxy received signals to the process (non-TTY mode only). SIGCHLD, SIGSTOP, and SIGKILL are not proxied.")
flAutoRemove = cmd.Bool([]string{"#rm", "-rm"}, false, "Automatically remove the container when it exits")
flDetach = cmd.Bool([]string{"d", "-detach"}, false, "Run container in background and print container ID")
flSigProxy = cmd.Bool([]string{"#sig-proxy", "-sig-proxy"}, true, "Proxy received signals to the process")
flName = cmd.String([]string{"#name", "-name"}, "", "Assign a name to the container")
flAttach *opts.ListOpts
@ -2728,7 +2728,7 @@ func (cli *DockerCli) CmdStats(args ...string) error {
if len(errs) > 0 {
return fmt.Errorf("%s", strings.Join(errs, ", "))
}
for _ = range time.Tick(500 * time.Millisecond) {
for range time.Tick(500 * time.Millisecond) {
printHeader()
toRemove := []int{}
for i, s := range cStats {

34
daemon/config.go
View File

@ -50,27 +50,27 @@ type Config struct {
// from the command-line.
func (config *Config) InstallFlags() {
flag.StringVar(&config.Pidfile, []string{"p", "-pidfile"}, "/var/run/docker.pid", "Path to use for daemon PID file")
flag.StringVar(&config.Root, []string{"g", "-graph"}, "/var/lib/docker", "Path to use as the root of the Docker runtime")
flag.StringVar(&config.Root, []string{"g", "-graph"}, "/var/lib/docker", "Root of the Docker runtime")
flag.BoolVar(&config.AutoRestart, []string{"#r", "#-restart"}, true, "--restart on the daemon has been deprecated in favor of --restart policies on docker run")
flag.BoolVar(&config.EnableIptables, []string{"#iptables", "-iptables"}, true, "Enable Docker's addition of iptables rules")
flag.BoolVar(&config.EnableIpForward, []string{"#ip-forward", "-ip-forward"}, true, "Enable net.ipv4.ip_forward and IPv6 forwarding if --fixed-cidr-v6 is defined. IPv6 forwarding may interfere with your existing IPv6 configuration when using Router Advertisement.")
flag.BoolVar(&config.EnableIpMasq, []string{"-ip-masq"}, true, "Enable IP masquerading for bridge's IP range")
flag.BoolVar(&config.EnableIptables, []string{"#iptables", "-iptables"}, true, "Enable addition of iptables rules")
flag.BoolVar(&config.EnableIpForward, []string{"#ip-forward", "-ip-forward"}, true, "Enable net.ipv4.ip_forward")
flag.BoolVar(&config.EnableIpMasq, []string{"-ip-masq"}, true, "Enable IP masquerading")
flag.BoolVar(&config.EnableIPv6, []string{"-ipv6"}, false, "Enable IPv6 networking")
flag.StringVar(&config.BridgeIP, []string{"#bip", "-bip"}, "", "Use this CIDR notation address for the network bridge's IP, not compatible with -b")
flag.StringVar(&config.BridgeIface, []string{"b", "-bridge"}, "", "Attach containers to a pre-existing network bridge\nuse 'none' to disable container networking")
flag.StringVar(&config.FixedCIDR, []string{"-fixed-cidr"}, "", "IPv4 subnet for fixed IPs (e.g. 10.20.0.0/16)\nthis subnet must be nested in the bridge subnet (which is defined by -b or --bip)")
flag.StringVar(&config.FixedCIDRv6, []string{"-fixed-cidr-v6"}, "", "IPv6 subnet for fixed IPs (e.g.: 2001:a02b/48)")
flag.BoolVar(&config.InterContainerCommunication, []string{"#icc", "-icc"}, true, "Allow unrestricted inter-container and Docker daemon host communication")
flag.StringVar(&config.GraphDriver, []string{"s", "-storage-driver"}, "", "Force the Docker runtime to use a specific storage driver")
flag.StringVar(&config.ExecDriver, []string{"e", "-exec-driver"}, "native", "Force the Docker runtime to use a specific exec driver")
flag.BoolVar(&config.EnableSelinuxSupport, []string{"-selinux-enabled"}, false, "Enable selinux support. SELinux does not presently support the BTRFS storage driver")
flag.IntVar(&config.Mtu, []string{"#mtu", "-mtu"}, 0, "Set the containers network MTU\nif no value is provided: default to the default route MTU or 1500 if no default route is available")
opts.IPVar(&config.DefaultIp, []string{"#ip", "-ip"}, "0.0.0.0", "Default IP address to use when binding container ports")
flag.StringVar(&config.BridgeIP, []string{"#bip", "-bip"}, "", "Specify network bridge IP")
flag.StringVar(&config.BridgeIface, []string{"b", "-bridge"}, "", "Attach containers to a network bridge")
flag.StringVar(&config.FixedCIDR, []string{"-fixed-cidr"}, "", "IPv4 subnet for fixed IPs")
flag.StringVar(&config.FixedCIDRv6, []string{"-fixed-cidr-v6"}, "", "IPv6 subnet for fixed IPs")
flag.BoolVar(&config.InterContainerCommunication, []string{"#icc", "-icc"}, true, "Enable inter-container communication")
flag.StringVar(&config.GraphDriver, []string{"s", "-storage-driver"}, "", "Storage driver to use")
flag.StringVar(&config.ExecDriver, []string{"e", "-exec-driver"}, "native", "Exec driver to use")
flag.BoolVar(&config.EnableSelinuxSupport, []string{"-selinux-enabled"}, false, "Enable selinux support")
flag.IntVar(&config.Mtu, []string{"#mtu", "-mtu"}, 0, "Set the containers network MTU")
opts.IPVar(&config.DefaultIp, []string{"#ip", "-ip"}, "0.0.0.0", "Default IP when binding container ports")
opts.ListVar(&config.GraphOptions, []string{"-storage-opt"}, "Set storage driver options")
// FIXME: why the inconsistency between "hosts" and "sockets"?
opts.IPListVar(&config.Dns, []string{"#dns", "-dns"}, "Force Docker to use specific DNS servers")
opts.DnsSearchListVar(&config.DnsSearch, []string{"-dns-search"}, "Force Docker to use specific DNS search domains")
opts.LabelListVar(&config.Labels, []string{"-label"}, "Set key=value labels to the daemon (displayed in `docker info`)")
opts.IPListVar(&config.Dns, []string{"#dns", "-dns"}, "DNS server to use")
opts.DnsSearchListVar(&config.DnsSearch, []string{"-dns-search"}, "DNS search domains to use")
opts.LabelListVar(&config.Labels, []string{"-label"}, "Set key=value labels to the daemon")
}
func getDefaultNetworkMtu() int {

12
docker/flags.go
View File

@ -40,12 +40,12 @@ var (
flVersion = flag.Bool([]string{"v", "-version"}, false, "Print version information and quit")
flDaemon = flag.Bool([]string{"d", "-daemon"}, false, "Enable daemon mode")
flDebug = flag.Bool([]string{"D", "-debug"}, false, "Enable debug mode")
flSocketGroup = flag.String([]string{"G", "-group"}, "docker", "Group to assign the unix socket specified by -H when running in daemon mode\nuse '' (the empty string) to disable setting of a group")
flLogLevel = flag.String([]string{"l", "-log-level"}, "info", "Set the logging level (debug, info, warn, error, fatal)")
flSocketGroup = flag.String([]string{"G", "-group"}, "docker", "Group for the unix socket")
flLogLevel = flag.String([]string{"l", "-log-level"}, "info", "Set the logging level")
flEnableCors = flag.Bool([]string{"#api-enable-cors", "-api-enable-cors"}, false, "Enable CORS headers in the remote API")
flTls = flag.Bool([]string{"-tls"}, false, "Use TLS; implied by --tlsverify flag")
flHelp = flag.Bool([]string{"h", "-help"}, false, "Print usage")
flTlsVerify = flag.Bool([]string{"-tlsverify"}, dockerTlsVerify, "Use TLS and verify the remote (daemon: verify client, client: verify daemon)")
flTlsVerify = flag.Bool([]string{"-tlsverify"}, dockerTlsVerify, "Use TLS and verify the remote")
// these are initialized in init() below since their default values depend on dockerCertPath which isn't fully initialized until init() runs
flTrustKey *string
@ -70,10 +70,10 @@ func init() {
// TODO use flag flag.String([]string{"i", "-identity"}, "", "Path to libtrust key file")
flTrustKey = &placeholderTrustKey
flCa = flag.String([]string{"-tlscacert"}, filepath.Join(dockerCertPath, defaultCaFile), "Trust only remotes providing a certificate signed by the CA given here")
flCa = flag.String([]string{"-tlscacert"}, filepath.Join(dockerCertPath, defaultCaFile), "Trust certs signed only by this CA")
flCert = flag.String([]string{"-tlscert"}, filepath.Join(dockerCertPath, defaultCertFile), "Path to TLS certificate file")
flKey = flag.String([]string{"-tlskey"}, filepath.Join(dockerCertPath, defaultKeyFile), "Path to TLS key file")
opts.HostListVar(&flHosts, []string{"H", "-host"}, "The socket(s) to bind to in daemon mode or connect to in client mode, specified using one or more tcp://host:port, unix:///path/to/socket, fd://* or fd://socketfd.")
opts.HostListVar(&flHosts, []string{"H", "-host"}, "Daemon socket(s) to use or connect to")
flag.Usage = func() {
fmt.Fprint(os.Stdout, "Usage: docker [OPTIONS] COMMAND [arg...]\n\nA self-sufficient runtime for linux containers.\n\nOptions:\n")
@ -116,7 +116,7 @@ func init() {
{"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 live stream of one or more containers' resource usage statistics"},
{"stats", "Display a stream of a containers' resource usage statistics"},
{"stop", "Stop a running container"},
{"tag", "Tag an image into a repository"},
{"top", "Lookup the running processes of a container"},

145
docs/sources/reference/commandline/cli.md
View File

@ -70,42 +70,38 @@ expect an integer, and they can only be specified once.
Options:
--api-enable-cors=false Enable CORS headers in the remote API
-b, --bridge="" Attach containers to a pre-existing network bridge
use 'none' to disable container networking
--bip="" Use this CIDR notation address for the network bridge's IP, not compatible with -b
-b, --bridge="" Attach containers to a network bridge
--bip="" Specify network bridge IP
-D, --debug=false Enable debug mode
-d, --daemon=false Enable daemon mode
--dns=[] Force Docker to use specific DNS servers
--dns-search=[] Force Docker to use specific DNS search domains
-e, --exec-driver="native" Force the Docker runtime to use a specific exec driver
--fixed-cidr="" IPv4 subnet for fixed IPs (e.g.: 10.20.0.0/16)
this subnet must be nested in the bridge subnet (which is defined by -b or --bip)
--fixed-cidr-v6="" IPv6 subnet for global IPs (e.g.: 2a00:1450::/64)
-G, --group="docker" Group to assign the unix socket specified by -H when running in daemon mode
use '' (the empty string) to disable setting of a group
-g, --graph="/var/lib/docker" Path to use as the root of the Docker runtime
-H, --host=[] The socket(s) to bind to in daemon mode or connect to in client mode, specified using one or more tcp://host:port, unix:///path/to/socket, fd://* or fd://socketfd.
--icc=true Allow unrestricted inter-container and Docker daemon host communication
--insecure-registry=[] Enable insecure communication with specified registries (disables certificate verification for HTTPS and enables HTTP fallback) (e.g., localhost:5000 or 10.20.0.0/16)
--ip=0.0.0.0 Default IP address to use when binding container ports
--ip-forward=true Enable net.ipv4.ip_forward and IPv6 forwarding if --fixed-cidr-v6 is defined. IPv6 forwarding may interfere with your existing IPv6 configuration when using Router Advertisement.
--ip-masq=true Enable IP masquerading for bridge's IP range
--iptables=true Enable Docker's addition of iptables rules
--ipv6=false Enable Docker IPv6 support
-l, --log-level="info" Set the logging level (debug, info, warn, error, fatal)
--label=[] Set key=value labels to the daemon (displayed in `docker info`)
--dns=[] DNS server to use
--dns-search=[] DNS search domains to use
-e, --exec-driver="native" Exec driver to use
--fixed-cidr="" IPv4 subnet for fixed IPs
--fixed-cidr-v6="" IPv6 subnet for fixed IPs
-G, --group="docker" Group for the unix socket
-g, --graph="/var/lib/docker" Root of the Docker runtime
-H, --host=[] Daemon socket(s) to use or connect to
--icc=true Enable inter-container communication
--insecure-registry=[] Enable insecure registry communication
--ip=0.0.0.0 Default IP when binding 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 labels to the daemon
--mtu=0 Set the containers network MTU
if no value is provided: default to the default route MTU or 1500 if no default route is available
-p, --pidfile="/var/run/docker.pid" Path to use for daemon PID file
--registry-mirror=[] Specify a preferred Docker registry mirror
-s, --storage-driver="" Force the Docker runtime to use a specific storage driver
--selinux-enabled=false Enable selinux support. SELinux does not presently support the BTRFS storage driver
--registry-mirror=[] Preferred Docker registry mirror
-s, --storage-driver="" Storage driver to use
--selinux-enabled=false Enable selinux support
--storage-opt=[] Set storage driver options
--tls=false Use TLS; implied by --tlsverify flag
--tlscacert="/home/sven/.docker/ca.pem" Trust only remotes providing a certificate signed by the CA given here
--tlscacert="/home/sven/.docker/ca.pem" Trust certs signed only by this CA
--tlscert="/home/sven/.docker/cert.pem" Path to TLS certificate file
--tlskey="/home/sven/.docker/key.pem" Path to TLS key file
--tlsverify=false Use TLS and verify the remote (daemon: verify client, client: verify daemon)
--tlsverify=false Use TLS and verify the remote
-v, --version=false Print version information and quit
Options with [] may be specified multiple times.
@ -428,7 +424,7 @@ Docker supports softlinks for the Docker data directory
Attach to a running container
--no-stdin=false Do not attach STDIN
--sig-proxy=true Proxy all received signals to the process (non-TTY mode only). SIGCHLD, SIGKILL, and SIGSTOP are not proxied.
--sig-proxy=true Proxy all received signals to the process
The `attach` command lets you view or interact with any running container's
primary process (`pid 1`).
@ -489,12 +485,13 @@ To kill the container, use `docker kill`.
Build a new image from the source code at PATH
--force-rm=false Always remove intermediate containers, even after unsuccessful builds
-f, --file="" Name of the Dockerfile(Default is 'Dockerfile')
--force-rm=false Always remove intermediate containers
--no-cache=false Do not use cache when building the image
--pull=false Always attempt to pull a newer version of the image
-q, --quiet=false Suppress the verbose output generated by the containers
--rm=true Remove intermediate containers after a successful build
-t, --tag="" Repository name (and optionally a tag) to be applied to the resulting image in case of success
-t, --tag="" Repository name (and optionally a tag) for the image
Use this command to build Docker images from a Dockerfile and a
"context".
@ -734,41 +731,31 @@ Creates a new container.
--cap-drop=[] Drop Linux capabilities
--cidfile="" Write the container ID to the file
--cpuset="" CPUs in which to allow execution (0-3, 0,1)
--device=[] Add a host device to the container (e.g. --device=/dev/sdc:/dev/xvdc:rwm)
--device=[] Add a host device to the container
--dns=[] Set custom DNS servers
--dns-search=[] Set custom DNS search domains (Use --dns-search=. if you don't wish to set the search domain)
--dns-search=[] Set custom DNS search domains
-e, --env=[] Set environment variables
--entrypoint="" Overwrite the default ENTRYPOINT of the image
--env-file=[] Read in a line delimited file of environment variables
--expose=[] Expose a port or a range of ports (e.g. --expose=3300-3310) from the container without publishing it to your host
--env-file=[] Read in a file of environment variables
--expose=[] Expose a port or a range of ports
-h, --hostname="" Container host name
-i, --interactive=false Keep STDIN open even if not attached
--ipc="" Default is to create a private IPC namespace (POSIX SysV IPC) for the container
'container:<name|id>': reuses another container shared memory, semaphores and message queues
'host': use the host shared memory,semaphores and message queues inside the container. Note: the host mode gives the container full access to local shared memory and is therefore considered insecure.
--link=[] Add link to another container in the form of <name or id>:alias
--lxc-conf=[] (lxc exec-driver only) Add custom lxc options --lxc-conf="lxc.cgroup.cpuset.cpus = 0,1"
-m, --memory="" Memory limit (format: <number><optional unit>, where unit = b, k, m or g)
--ipc="" IPC namespace to use
--link=[] Add link to another container
--lxc-conf=[] Add custom lxc options
-m, --memory="" Memory limit
--mac-address="" Container MAC address (e.g. 92:d0:c6:0a:29:33)
--name="" Assign a name to the container
--net="bridge" Set the Network mode for the container
'bridge': creates a new network stack for the container on the docker bridge
'none': no networking for this container
'container:<name|id>': reuses another container network stack
'host': use the host network stack inside the container. Note: the host mode gives the container full access to local system services such as D-bus and is therefore considered insecure.
-P, --publish-all=false Publish all exposed ports to random ports on the host interfaces
-p, --publish=[] Publish a container's port, or a range of ports (e.g., `-p 3300-3310`), to the host
format: ip:hostPort:containerPort | ip::containerPort | hostPort:containerPort | containerPort
Both hostPort and containerPort can be specified as a range of ports.
When specifying ranges for both, the number of container ports in the range must match the number of host ports in the range. (e.g., `-p 1234-1236:1234-1236/tcp`)
(use 'docker port' to see the actual mapping)
-P, --publish-all=false Publish all exposed ports to random ports
-p, --publish=[] Publish a container's port(s) to the host
--privileged=false Give extended privileges to this container
--read-only=false Mount the container's root filesystem as read only
--restart="" Restart policy to apply when a container exits (no, on-failure[:max-retry], always)
--read-only=false Mount the container's root filesystem as read only
--restart="" Restart policy to apply when a container exits
--security-opt=[] Security Options
-t, --tty=false Allocate a pseudo-TTY
-u, --user="" Username or UID
-v, --volume=[] Bind mount a volume (e.g., from the host: -v /host:/container, from Docker: -v /container)
-v, --volume=[] Bind mount a volume
--volumes-from=[] Mount volumes from the specified container(s)
-w, --workdir="" Working directory inside the container
@ -1043,7 +1030,7 @@ To see how the `docker:latest` image was built:
List images
-a, --all=false Show all images (by default filter out the intermediate image layers)
-a, --all=false Show all images (default hides intermediate images)
-f, --filter=[] Provide filter values (i.e., 'dangling=true')
--no-trunc=false Don't truncate output
-q, --quiet=false Only show numeric IDs
@ -1136,7 +1123,9 @@ NOTE: Docker will warn you if any containers exist that are using these untagged
Usage: docker import URL|- [REPOSITORY[:TAG]]
Create an empty filesystem image and import the contents of the tarball (.tar, .tar.gz, .tgz, .bzip, .tar.xz, .txz) into it, then optionally tag it.
Create an empty filesystem image and import the contents of the
tarball (.tar, .tar.gz, .tgz, .bzip, .tar.xz, .txz) into it, then
optionally tag it.
URLs must start with `http` and point to a single file archive (.tar,
.tar.gz, .tgz, .bzip, .tar.xz, or .txz) containing a root filesystem. If
@ -1305,7 +1294,8 @@ Restores both images and tags.
Usage: docker login [OPTIONS] [SERVER]
Register or log in to a Docker registry server, if no server is specified "https://index.docker.io/v1/" is the default.
Register or log in to a Docker registry server, if no server is
specified "https://index.docker.io/v1/" is the default.
-e, --email="" Email
-p, --password="" Password
@ -1321,7 +1311,8 @@ adding the server name.
Usage: docker logout [SERVER]
Log out from a Docker registry, if no server is specified "https://index.docker.io/v1/" is the default.
Log out from a Docker registry, if no server is
specified "https://index.docker.io/v1/" is the default.
For example:
@ -1335,7 +1326,7 @@ For example:
-f, --follow=false Follow log output
-t, --timestamps=false Show timestamps
--tail="all" Output the specified number of lines at the end of logs (defaults to all logs)
--tail="all" Number of lines to show from the end of the logs
The `docker logs` command batch-retrieves logs present at the time of execution.
@ -1370,7 +1361,8 @@ for further details.
Usage: docker port CONTAINER [PRIVATE_PORT[/PROTO]]
List port mappings for the CONTAINER, or lookup the public-facing port that is NAT-ed to the PRIVATE_PORT
List port mappings for the CONTAINER, or lookup the public-facing port that is
NAT-ed to the PRIVATE_PORT
You can find out all the ports mapped by not specifying a `PRIVATE_PORT`, or
just a specific mapping:
@ -1418,17 +1410,17 @@ The `docker rename` command allows the container to be renamed to a different na
List containers
-a, --all=false Show all containers. Only running containers are shown by default.
--before="" Show only container created before Id or Name, include non-running ones.
-a, --all=false Show all containers (default shows just running)
--before="" Show only container created before Id or Name.
-f, --filter=[] Provide filter values. Valid filters:
exited=<int> - containers with exit code of <int>
status=(restarting|running|paused|exited)
-l, --latest=false Show only the latest created container, include non-running ones.
-n=-1 Show n last created containers, include non-running ones.
-l, --latest=false Show the latest created container, include non-running.
-n=-1 Show n last created containers, include non-running .
--no-trunc=false Don't truncate output
-q, --quiet=false Only display numeric IDs
-s, --size=false Display total file sizes
--since="" Show only containers created since Id or Name, include non-running ones.
--since="" Show created since Id or Name, include non-running.
Running `docker ps` showing 2 linked containers.
@ -1510,7 +1502,7 @@ registry or to a self-hosted one.
Restart a running container
-t, --time=10 Number of seconds to try to stop for before killing the container. Once killed it will then be restarted. Default is 10 seconds.
-t, --time=10 Seconds to wait for stop before killing the container.
## rm
@ -1519,7 +1511,7 @@ registry or to a self-hosted one.
Remove one or more containers
-f, --force=false Force the removal of a running container (uses SIGKILL)
-l, --link=false Remove the specified link and not the underlying container
-l, --link=false Remove the specified link
-v, --volumes=false Remove the volumes associated with the container
#### Examples
@ -1597,7 +1589,7 @@ removed before the image is removed.
--cap-drop=[] Drop Linux capabilities
--cidfile="" Write the container ID to the file
--cpuset="" CPUs in which to allow execution (0-3, 0,1)
-d, --detach=false Detached mode: run the container in the background and print the new container ID
-d, --detach=false Run container in background and print container ID
--device=[] Add a host device to the container (e.g. --device=/dev/sdc:/dev/xvdc:rwm)
--dns=[] Set custom DNS servers
--dns-search=[] Set custom DNS search domains (Use --dns-search=. if you don't wish to set the search domain)
@ -1611,9 +1603,9 @@ removed before the image is removed.
'container:<name|id>': reuses another container shared memory, semaphores and message queues
'host': use the host shared memory,semaphores and message queues inside the container. Note: the host mode gives the container full access to local shared memory and is therefore considered insecure.
--link=[] Add link to another container in the form of name:alias
--lxc-conf=[] (lxc exec-driver only) Add custom lxc options --lxc-conf="lxc.cgroup.cpuset.cpus = 0,1"
-m, --memory="" Memory limit (format: <number><optional unit>, where unit = b, k, m or g)
-memory-swap="" Total memory usage (memory + swap), set '-1' to disable swap (format: <number><optional unit>, where unit = b, k, m or g)
--lxc-conf=[] Add custom lxc options
-m, --memory="" Memory limit
-memory-swap="" Total memory (memory+swap), '-1' to disable swap
--mac-address="" Container MAC address (e.g. 92:d0:c6:0a:29:33)
--name="" Assign a name to the container
--net="bridge" Set the Network mode for the container
@ -1631,9 +1623,9 @@ removed before the image is removed.
--privileged=false Give extended privileges to this container
--read-only=false Mount the container's root filesystem as read only
--restart="" Restart policy to apply when a container exits (no, on-failure[:max-retry], always)
--rm=false Automatically remove the container when it exits (incompatible with -d)
--rm=false Automatically remove the container when it exits
--security-opt=[] Security Options
--sig-proxy=true Proxy received signals to the process (non-TTY mode only). SIGCHLD, SIGSTOP, and SIGKILL are not proxied.
--sig-proxy=true Proxy received signals to the process
-t, --tty=false Allocate a pseudo-TTY
-u, --user="" Username or UID
-v, --volume=[] Bind mount a volume (e.g., from the host: -v /host:/container, from Docker: -v /container)
@ -2001,7 +1993,7 @@ more details on finding shared images from the command line.
Restart a stopped container
-a, --attach=false Attach container's STDOUT and STDERR and forward all signals to the process
-a, --attach=false Attach STDOUT/STDERR and forward signals
-i, --interactive=false Attach container's STDIN
## stats
@ -2030,9 +2022,10 @@ containers. Stopped containers will not return any data.
Usage: docker stop [OPTIONS] CONTAINER [CONTAINER...]
Stop a running container by sending SIGTERM and then SIGKILL after a grace period
Stop a running container by sending SIGTERM and then SIGKILL after a
grace period
-t, --time=10 Number of seconds to wait for the container to stop before killing it. Default is 10 seconds.
-t, --time=10 Seconds to wait for stop before killing it.
The main process inside the container will receive `SIGTERM`, and after a
grace period, `SIGKILL`.

2
docs/sources/reference/run.md
View File

@ -341,7 +341,7 @@ milliseconds.
--cap-drop: Drop Linux capabilities
--privileged=false: Give extended privileges to this container
--device=[]: Allows you to run devices inside the container without the --privileged flag.
--lxc-conf=[]: (lxc exec-driver only) Add custom lxc options --lxc-conf="lxc.cgroup.cpuset.cpus = 0,1"
--lxc-conf=[]: Add custom lxc options
By default, Docker containers are "unprivileged" and cannot, for
example, run a Docker daemon inside a Docker container. This is because

104
integration-cli/docker_cli_help_test.go Normal file
View File

@ -0,0 +1,104 @@
package main
import (
"os"
"os/exec"
"runtime"
"strings"
"testing"
)
func TestMainHelpWidth(t *testing.T) {
// Make sure main help text fits within 80 chars and that
// on non-windows system we use ~ when possible (to shorten things)
var home string
if runtime.GOOS != "windows" {
home = os.Getenv("HOME")
}
helpCmd := exec.Command(dockerBinary, "help")
out, ec, err := runCommandWithOutput(helpCmd)
if err != nil || ec != 0 {
t.Fatalf("docker help should have worked\nout:%s\nec:%d", out, ec)
}
lines := strings.Split(out, "\n")
for _, line := range lines {
if len(line) > 80 {
t.Fatalf("Line is too long(%d chars):\n%s", len(line), line)
}
if home != "" && strings.Contains(line, home) {
t.Fatalf("Line should use ~ instead of %q:\n%s", home, line)
}
}
logDone("help - verify main width")
}
func TestCmdHelpWidth(t *testing.T) {
// Make sure main help text fits within 80 chars and that
// on non-windows system we use ~ when possible (to shorten things)
var home string
if runtime.GOOS != "windows" {
home = os.Getenv("HOME")
}
for _, command := range []string{
"attach",
"build",
"commit",
"cp",
"create",
"diff",
"events",
"exec",
"export",
"history",
"images",
"import",
"info",
"inspect",
"kill",
"load",
"login",
"logout",
"logs",
"port",
"pause",
"ps",
"pull",
"push",
"rename",
"restart",
"rm",
"rmi",
"run",
"save",
"search",
"start",
"stats",
"stop",
"tag",
"top",
"unpause",
"version",
"wait",
} {
helpCmd := exec.Command(dockerBinary, command, "--help")
out, ec, err := runCommandWithOutput(helpCmd)
if err != nil || ec != 0 {
t.Fatalf("docker help should have worked\nout:%s\nec:%d", out, ec)
}
lines := strings.Split(out, "\n")
for _, line := range lines {
if len(line) > 80 {
t.Fatalf("Help for %q is too long(%d chars):\n%s", command, len(line), line)
}
if home != "" && strings.Contains(line, home) {
t.Fatalf("Help for %q should use ~ instead of %q on:\n%s", command, home, line)
}
}
}
logDone("help - cmd widths")
}

13
pkg/mflag/flag.go
View File

@ -86,6 +86,7 @@ import (
"fmt"
"io"
"os"
"runtime"
"sort"
"strconv"
"strings"
@ -503,6 +504,10 @@ func Set(name, value string) error {
// otherwise, the default values of all defined flags in the set.
func (f *FlagSet) PrintDefaults() {
writer := tabwriter.NewWriter(f.Out(), 20, 1, 3, ' ', 0)
var home string
if runtime.GOOS != "windows" {
home = os.Getenv("HOME")
}
f.VisitAll(func(flag *Flag) {
format := " -%s=%s"
if _, ok := flag.Value.(*stringValue); ok {
@ -516,7 +521,13 @@ func (f *FlagSet) PrintDefaults() {
}
}
if len(names) > 0 {
fmt.Fprintf(writer, format, strings.Join(names, ", -"), flag.DefValue)
val := flag.DefValue
if home != "" && strings.HasPrefix(val, home) {
val = "~" + val[len(home):]
}
fmt.Fprintf(writer, format, strings.Join(names, ", -"), val)
for i, line := range strings.Split(flag.Usage, "\n") {
if i != 0 {
line = " " + line

4
registry/config.go
View File

@ -48,9 +48,9 @@ func IndexServerName() string {
// the current process.
func (options *Options) InstallFlags() {
options.Mirrors = opts.NewListOpts(ValidateMirror)
flag.Var(&options.Mirrors, []string{"-registry-mirror"}, "Specify a preferred Docker registry mirror")
flag.Var(&options.Mirrors, []string{"-registry-mirror"}, "Preferred Docker registry mirror")
options.InsecureRegistries = opts.NewListOpts(ValidateIndexName)
flag.Var(&options.InsecureRegistries, []string{"-insecure-registry"}, "Enable insecure communication with specified registries (no certificate verification for HTTPS and enable HTTP fallback) (e.g., localhost:5000 or 10.20.0.0/16)")
flag.Var(&options.InsecureRegistries, []string{"-insecure-registry"}, "Enable insecure registry communication")
}
type netIPNet net.IPNet

33
runconfig/parse.go
View File

@ -46,42 +46,39 @@ func Parse(cmd *flag.FlagSet, args []string) (*Config, *HostConfig, *flag.FlagSe
flNetwork = cmd.Bool([]string{"#n", "#-networking"}, true, "Enable networking for this container")
flPrivileged = cmd.Bool([]string{"#privileged", "-privileged"}, false, "Give extended privileges to this container")
flPidMode = cmd.String([]string{"-pid"}, "", "Default is to create a private PID namespace for the container\n'host': use the host PID namespace inside the container. Note: the host mode gives the container full access to processes on the system and is therefore considered insecure.")
flPublishAll = cmd.Bool([]string{"P", "-publish-all"}, false, "Publish all exposed ports to random ports on the host interfaces")
flPidMode = cmd.String([]string{"-pid"}, "", "PID namespace to use")
flPublishAll = cmd.Bool([]string{"P", "-publish-all"}, false, "Publish all exposed ports to random ports")
flStdin = cmd.Bool([]string{"i", "-interactive"}, false, "Keep STDIN open even if not attached")
flTty = cmd.Bool([]string{"t", "-tty"}, false, "Allocate a pseudo-TTY")
flContainerIDFile = cmd.String([]string{"#cidfile", "-cidfile"}, "", "Write the container ID to the file")
flEntrypoint = cmd.String([]string{"#entrypoint", "-entrypoint"}, "", "Overwrite the default ENTRYPOINT of the image")
flHostname = cmd.String([]string{"h", "-hostname"}, "", "Container host name")
flMemoryString = cmd.String([]string{"m", "-memory"}, "", "Memory limit (format: <number><optional unit>, where unit = b, k, m or g)")
flMemorySwap = cmd.String([]string{"-memory-swap"}, "", "Total memory usage (memory + swap), set '-1' to disable swap (format: <number><optional unit>, where unit = b, k, m or g)")
flMemoryString = cmd.String([]string{"m", "-memory"}, "", "Memory limit")
flMemorySwap = cmd.String([]string{"-memory-swap"}, "", "Total memory (memory + swap), '-1' to disable swap")
flUser = cmd.String([]string{"u", "-user"}, "", "Username or UID")
flWorkingDir = cmd.String([]string{"w", "-workdir"}, "", "Working directory inside the container")
flCpuShares = cmd.Int64([]string{"c", "-cpu-shares"}, 0, "CPU shares (relative weight)")
flCpuset = cmd.String([]string{"-cpuset"}, "", "CPUs in which to allow execution (0-3, 0,1)")
flNetMode = cmd.String([]string{"-net"}, "bridge", "Set the Network mode for the container\n'bridge': creates a new network stack for the container on the docker bridge\n'none': no networking for this container\n'container:<name|id>': reuses another container network stack\n'host': use the host network stack inside the container. Note: the host mode gives the container full access to local system services such as D-bus and is therefore considered insecure.")
flNetMode = cmd.String([]string{"-net"}, "bridge", "Set the Network mode for the container")
flMacAddress = cmd.String([]string{"-mac-address"}, "", "Container MAC address (e.g. 92:d0:c6:0a:29:33)")
flIpcMode = cmd.String([]string{"-ipc"}, "", "Default is to create a private IPC namespace (POSIX SysV IPC) for the container\n'container:<name|id>': reuses another container shared memory, semaphores and message queues\n'host': use the host shared memory,semaphores and message queues inside the container. Note: the host mode gives the container full access to local shared memory and is therefore considered insecure.")
flRestartPolicy = cmd.String([]string{"-restart"}, "", "Restart policy to apply when a container exits (no, on-failure[:max-retry], always)")
flIpcMode = cmd.String([]string{"-ipc"}, "", "IPC namespace to use")
flRestartPolicy = cmd.String([]string{"-restart"}, "", "Restart policy to apply when a container exits")
flReadonlyRootfs = cmd.Bool([]string{"-read-only"}, false, "Mount the container's root filesystem as read only")
)
cmd.Var(&flAttach, []string{"a", "-attach"}, "Attach to STDIN, STDOUT or STDERR.")
cmd.Var(&flVolumes, []string{"v", "-volume"}, "Bind mount a volume (e.g., from the host: -v /host:/container, from Docker: -v /container)")
cmd.Var(&flLinks, []string{"#link", "-link"}, "Add link to another container in the form of <name|id>:alias")
cmd.Var(&flDevices, []string{"-device"}, "Add a host device to the container (e.g. --device=/dev/sdc:/dev/xvdc:rwm)")
cmd.Var(&flVolumes, []string{"v", "-volume"}, "Bind mount a volume")
cmd.Var(&flLinks, []string{"#link", "-link"}, "Add link to another container")
cmd.Var(&flDevices, []string{"-device"}, "Add a host device to the container")
cmd.Var(&flEnv, []string{"e", "-env"}, "Set environment variables")
cmd.Var(&flEnvFile, []string{"-env-file"}, "Read in a line delimited file of environment variables")
cmd.Var(&flPublish, []string{"p", "-publish"}, fmt.Sprintf("Publish a container's port to the host\nformat: %s\n(use 'docker port' to see the actual mapping)", nat.PortSpecTemplateFormat))
cmd.Var(&flExpose, []string{"#expose", "-expose"}, "Expose a port or a range of ports (e.g. --expose=3300-3310) from the container without publishing it to your host")
cmd.Var(&flEnvFile, []string{"-env-file"}, "Read in a file of environment variables")
cmd.Var(&flPublish, []string{"p", "-publish"}, "Publish a container's port(s) to the host")
cmd.Var(&flExpose, []string{"#expose", "-expose"}, "Expose a port or a range of ports")
cmd.Var(&flDns, []string{"#dns", "-dns"}, "Set custom DNS servers")
cmd.Var(&flDnsSearch, []string{"-dns-search"}, "Set custom DNS search domains (Use --dns-search=. if you don't wish to set the search domain)")
cmd.Var(&flDnsSearch, []string{"-dns-search"}, "Set custom DNS search domains")
cmd.Var(&flExtraHosts, []string{"-add-host"}, "Add a custom host-to-IP mapping (host:ip)")
cmd.Var(&flVolumesFrom, []string{"#volumes-from", "-volumes-from"}, "Mount volumes from the specified container(s)")
cmd.Var(&flLxcOpts, []string{"#lxc-conf", "-lxc-conf"}, "(lxc exec-driver only) Add custom lxc options --lxc-conf=\"lxc.cgroup.cpuset.cpus = 0,1\"")
cmd.Var(&flLxcOpts, []string{"#lxc-conf", "-lxc-conf"}, "Add custom lxc options")
cmd.Var(&flCapAdd, []string{"-cap-add"}, "Add Linux capabilities")
cmd.Var(&flCapDrop, []string{"-cap-drop"}, "Drop Linux capabilities")
cmd.Var(&flSecurityOpt, []string{"-security-opt"}, "Security Options")