Golang opts.ListVar函数代码示例

// InstallFlags adds command-line options to the top-level flag parser for
// the current process.
// Subsequent calls to `flag.Parse` will populate config with values parsed
// 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", "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.Bridge.EnableIptables, []string{"#iptables", "-iptables"}, true, "Enable addition of iptables rules")
	flag.BoolVar(&config.Bridge.EnableIpForward, []string{"#ip-forward", "-ip-forward"}, true, "Enable net.ipv4.ip_forward")
	flag.BoolVar(&config.Bridge.EnableIpMasq, []string{"-ip-masq"}, true, "Enable IP masquerading")
	flag.BoolVar(&config.Bridge.EnableIPv6, []string{"-ipv6"}, false, "Enable IPv6 networking")
	flag.StringVar(&config.Bridge.IP, []string{"#bip", "-bip"}, "", "Specify network bridge IP")
	flag.StringVar(&config.Bridge.Iface, []string{"b", "-bridge"}, "", "Attach containers to a network bridge")
	flag.StringVar(&config.Bridge.FixedCIDR, []string{"-fixed-cidr"}, "", "IPv4 subnet for fixed IPs")
	flag.StringVar(&config.Bridge.FixedCIDRv6, []string{"-fixed-cidr-v6"}, "", "IPv6 subnet for fixed IPs")
	flag.StringVar(&config.Bridge.DefaultGatewayIPv4, []string{"-default-gateway"}, "", "Container default gateway IPv4 address")
	flag.StringVar(&config.Bridge.DefaultGatewayIPv6, []string{"-default-gateway-v6"}, "", "Container default gateway IPv6 address")
	flag.BoolVar(&config.Bridge.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")
	flag.StringVar(&config.SocketGroup, []string{"G", "-group"}, "docker", "Group for the unix socket")
	flag.BoolVar(&config.EnableCors, []string{"#api-enable-cors", "#-api-enable-cors"}, false, "Enable CORS headers in the remote API, this is deprecated by --api-cors-header")
	flag.StringVar(&config.CorsHeaders, []string{"-api-cors-header"}, "", "Set CORS headers in the remote API")
	opts.IPVar(&config.Bridge.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")
	opts.ListVar(&config.ExecOptions, []string{"-exec-opt"}, "Set exec driver options")
	// FIXME: why the inconsistency between "hosts" and "sockets"?
	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")
	config.Ulimits = make(map[string]*ulimit.Ulimit)
	opts.UlimitMapVar(config.Ulimits, []string{"-default-ulimit"}, "Set default ulimits for containers")
	flag.StringVar(&config.LogConfig.Type, []string{"-log-driver"}, "json-file", "Default driver for container logs")
}

// InstallFlags adds command-line options to the top-level flag parser for
// the current process.
// Subsequent calls to `flag.Parse` will populate config with values parsed
// 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.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")
	flag.BoolVar(&config.EnableIpMasq, []string{"-ip-masq"}, true, "Enable IP masquerading for bridge's IP range")
	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 (ex: 10.20.0.0/16)\nthis subnet must be nested in the bridge subnet (which is defined by -b or --bip)")
	opts.ListVar(&config.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.BoolVar(&config.InterContainerCommunication, []string{"#icc", "-icc"}, true, "Enable inter-container 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")
	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.MirrorListVar(&config.Mirrors, []string{"-registry-mirror"}, "Specify a preferred Docker registry mirror")
	opts.LabelListVar(&config.Labels, []string{"-label"}, "Set key=value labels to the daemon (displayed in `docker info`)")

	// Localhost is by default considered as an insecure registry
	// This is a stop-gap for people who are running a private registry on localhost (especially on Boot2docker).
	//
	// TODO: should we deprecate this once it is easier for people to set up a TLS registry or change
	// daemon flags on boot2docker?
	// If so, do not forget to check the TODO in TestIsSecure
	config.InsecureRegistries = append(config.InsecureRegistries, "127.0.0.0/8")
}

// InstallFlags adds command-line options to the top-level flag parser for
// the current process.
// Subsequent calls to `flag.Parse` will populate config with values parsed
// from the command-line.
func (config *Config) InstallFlags() {
	// First handle install flags which are consistent cross-platform
	config.InstallCommonFlags()

	// Then platform-specific install flags
	opts.ListVar(&config.GraphOptions, []string{"-storage-opt"}, "Set storage driver options")
	opts.ListVar(&config.ExecOptions, []string{"-exec-opt"}, "Set exec driver options")
	flag.BoolVar(&config.EnableSelinuxSupport, []string{"-selinux-enabled"}, false, "Enable selinux support")
	flag.StringVar(&config.SocketGroup, []string{"G", "-group"}, "docker", "Group for the unix socket")
	config.Ulimits = make(map[string]*ulimit.Ulimit)
	opts.UlimitMapVar(config.Ulimits, []string{"-default-ulimit"}, "Set default ulimits for containers")
}

func installFlags() {
	flag.BoolVar(&flDebug, []string{"D", "-debug"}, false, "Enable debug mode")
	flag.StringVar(&flLogLevel, []string{"l", "-log-level"}, "info", "Set the logging level")
	flag.StringVar(&root, []string{"g", "-graph"}, "/var/lib/docker", "Path to use as the root of the graph driver")
	opts.ListVar(&graphOptions, []string{"-storage-opt"}, "Set storage driver options")
	flag.StringVar(&graphDriver, []string{"s", "-storage-driver"}, "", "Force the runtime to use a specific storage driver")
}

func main() {
	flag.StringVar(&root, "r", "/var/lib/docker", "Docker root dir")
	opts.ListVar(&graphOptions, []string{"-storage-opt"}, "Set storage driver options")
	flDebug := flag.Bool("D", false, "Debug mode")

	flag.Parse()

	if *flDebug {
		//os.Setenv("DEBUG", "1")
		log.SetLevel(log.DebugLevel)
	}

	if flag.NArg() < 1 {
		usage()
	}

	args := flag.Args()

	switch args[0] {
	case "diff":
		if flag.NArg() < 3 {
			usage()
		}
		err := exportDiff(args[1], args[2])
		if err != nil {
			log.Errorf("Export diff  error: %v", err)
			os.Exit(1)
		}
		break
	case "diffapply":
		if flag.NArg() < 4 {
			usage()
		}
		err := diffAndApply(args[1], args[2], args[3])
		if err != nil {
			log.Errorf("Apply diff  error: %v", err)
			os.Exit(1)
		} else {
			log.Infof("Apply diff success")
		}
		break
	case "apply":
		if flag.NArg() < 2 {
			usage()
		}
		err := applyLayer(args[1])
		if err != nil {
			log.Errorf("Apply diff  error: %v", err)
			os.Exit(1)
		} else {
			log.Infof("Apply diff success")
		}
		break
	default:
		fmt.Printf("Unknown command %s\n", args[0])
		usage()

		os.Exit(1)
	}
}

// InstallCommonFlags adds command-line options to the top-level flag parser for
// the current process.
// Subsequent calls to `flag.Parse` will populate config with values parsed
// from the command-line.
func (config *Config) InstallCommonFlags() {
	opts.ListVar(&config.GraphOptions, []string{"-storage-opt"}, "Set storage driver options")
	opts.ListVar(&config.ExecOptions, []string{"-exec-opt"}, "Set exec driver options")
	flag.StringVar(&config.Pidfile, []string{"p", "-pidfile"}, defaultPidFile, "Path to use for daemon PID file")
	flag.StringVar(&config.Root, []string{"g", "-graph"}, defaultGraph, "Root of the Docker runtime")
	flag.StringVar(&config.ExecRoot, []string{"-exec-root"}, "/var/run/docker", "Root of the Docker execdriver")
	flag.BoolVar(&config.AutoRestart, []string{"#r", "#-restart"}, true, "--restart on the daemon has been deprecated in favor of --restart policies on docker run")
	flag.StringVar(&config.GraphDriver, []string{"s", "-storage-driver"}, "", "Storage driver to use")
	flag.StringVar(&config.ExecDriver, []string{"e", "-exec-driver"}, defaultExec, "Exec driver to use")
	flag.IntVar(&config.Mtu, []string{"#mtu", "-mtu"}, 0, "Set the containers network MTU")
	flag.BoolVar(&config.EnableCors, []string{"#api-enable-cors", "#-api-enable-cors"}, false, "Enable CORS headers in the remote API, this is deprecated by --api-cors-header")
	flag.StringVar(&config.CorsHeaders, []string{"-api-cors-header"}, "", "Set CORS headers in the remote API")
	// FIXME: why the inconsistency between "hosts" and "sockets"?
	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")
	flag.StringVar(&config.LogConfig.Type, []string{"-log-driver"}, "json-file", "Default driver for container logs")
	opts.LogOptsVar(config.LogConfig.Config, []string{"-log-opt"}, "Set log driver options")
}

// InstallFlags adds command-line options to the top-level flag parser for
// the current process.
// Subsequent calls to `flag.Parse` will populate config with values parsed
// 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.BoolVar(&config.AutoRestart, []string{"#r", "#-restart"}, true, "--restart on the daemon has been deprecated infavor 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")
	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.BoolVar(&config.InterContainerCommunication, []string{"#icc", "-icc"}, true, "Enable inter-container 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")
	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")
}

// InstallFlags adds command-line options to the top-level flag parser for
// the current process.
// Subsequent calls to `flag.Parse` will populate config with values parsed
// 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.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.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")
	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`)")
}