Golang nat.ParsePortSpecs函数代码示例

// EXPOSE 6667/tcp 7000/tcp
//
// Expose ports for links and port mappings. This all ends up in
// b.Config.ExposedPorts for runconfig.
//
func expose(b *Builder, args []string, attributes map[string]bool, original string) error {
	portsTab := args

	if len(args) == 0 {
		return fmt.Errorf("EXPOSE requires at least one argument")
	}

	if b.Config.ExposedPorts == nil {
		b.Config.ExposedPorts = make(nat.PortSet)
	}

	ports, _, err := nat.ParsePortSpecs(append(portsTab, b.Config.PortSpecs...))
	if err != nil {
		return err
	}

	// instead of using ports directly, we build a list of ports and sort it so
	// the order is consistent. This prevents cache burst where map ordering
	// changes between builds
	portList := make([]string, len(ports))
	var i int
	for port := range ports {
		if _, exists := b.Config.ExposedPorts[port]; !exists {
			b.Config.ExposedPorts[port] = struct{}{}
		}
		portList[i] = string(port)
		i++
	}
	sort.Strings(portList)
	b.Config.PortSpecs = nil
	return b.commit("", b.Config.Cmd, fmt.Sprintf("EXPOSE %s", strings.Join(portList, " ")))
}

func TestParseNetworkOptsPublicNoPort(t *testing.T) {
	ports, bindings, err := nat.ParsePortSpecs([]string{"192.168.1.100"})

	if err == nil {
		t.Logf("Expected error Invalid containerPort")
		t.Fail()
	}
	if ports != nil {
		t.Logf("Expected nil got %s", ports)
		t.Fail()
	}
	if bindings != nil {
		t.Logf("Expected nil got %s", bindings)
		t.Fail()
	}
}

func TestParseNetworkOptsNegativePorts(t *testing.T) {
	ports, bindings, err := nat.ParsePortSpecs([]string{"192.168.1.100:-1:-1"})

	if err == nil {
		t.Fail()
	}
	t.Logf("%v", len(ports))
	t.Logf("%v", bindings)
	if len(ports) != 0 {
		t.Logf("Expected nil got %s", len(ports))
		t.Fail()
	}
	if len(bindings) != 0 {
		t.Logf("Expected 0 got %s", len(bindings))
		t.Fail()
	}
}

// EXPOSE 6667/tcp 7000/tcp
//
// Expose ports for links and port mappings. This all ends up in
// b.Config.ExposedPorts for runconfig.
//
func expose(b *Builder, args []string, attributes map[string]bool, original string) error {
	portsTab := args

	if len(args) == 0 {
		return fmt.Errorf("EXPOSE requires at least one argument")
	}

	if err := b.BuilderFlags.Parse(); err != nil {
		return err
	}

	if b.Config.ExposedPorts == nil {
		b.Config.ExposedPorts = make(nat.PortSet)
	}

	ports, bindingMap, err := nat.ParsePortSpecs(append(portsTab, b.Config.PortSpecs...))
	if err != nil {
		return err
	}

	for _, bindings := range bindingMap {
		if bindings[0].HostIp != "" || bindings[0].HostPort != "" {
			fmt.Fprintf(b.ErrStream, " ---> Using Dockerfile's EXPOSE instruction"+
				"      to map host ports to container ports (ip:hostPort:containerPort) is deprecated.\n"+
				"      Please use -p to publish the ports.\n")
		}
	}

	// instead of using ports directly, we build a list of ports and sort it so
	// the order is consistent. This prevents cache burst where map ordering
	// changes between builds
	portList := make([]string, len(ports))
	var i int
	for port := range ports {
		if _, exists := b.Config.ExposedPorts[port]; !exists {
			b.Config.ExposedPorts[port] = struct{}{}
		}
		portList[i] = string(port)
		i++
	}
	sort.Strings(portList)
	b.Config.PortSpecs = nil
	return b.commit("", b.Config.Cmd, fmt.Sprintf("EXPOSE %s", strings.Join(portList, " ")))
}

func (b *buildFile) CmdExpose(args string) error {
	portsTab := strings.Split(args, " ")

	if b.config.ExposedPorts == nil {
		b.config.ExposedPorts = make(nat.PortSet)
	}
	ports, _, err := nat.ParsePortSpecs(append(portsTab, b.config.PortSpecs...))
	if err != nil {
		return err
	}
	for port := range ports {
		if _, exists := b.config.ExposedPorts[port]; !exists {
			b.config.ExposedPorts[port] = struct{}{}
		}
	}
	b.config.PortSpecs = nil

	return b.commit("", b.config.Cmd, fmt.Sprintf("EXPOSE %v", ports))
}

func TestParseNetworkOptsPrivateOnly(t *testing.T) {
	ports, bindings, err := nat.ParsePortSpecs([]string{"192.168.1.100::80"})
	if err != nil {
		t.Fatal(err)
	}
	if len(ports) != 1 {
		t.Logf("Expected 1 got %d", len(ports))
		t.FailNow()
	}
	if len(bindings) != 1 {
		t.Logf("Expected 1 got %d", len(bindings))
		t.FailNow()
	}
	for k := range ports {
		if k.Proto() != "tcp" {
			t.Logf("Expected tcp got %s", k.Proto())
			t.Fail()
		}
		if k.Port() != "80" {
			t.Logf("Expected 80 got %s", k.Port())
			t.Fail()
		}
		b, exists := bindings[k]
		if !exists {
			t.Log("Binding does not exist")
			t.FailNow()
		}
		if len(b) != 1 {
			t.Logf("Expected 1 got %d", len(b))
			t.FailNow()
		}
		s := b[0]
		if s.HostPort != "" {
			t.Logf("Expected \"\" got %s", s.HostPort)
			t.Fail()
		}
		if s.HostIp != "192.168.1.100" {
			t.Fail()
		}
	}
}

// EXPOSE 6667/tcp 7000/tcp
//
// Expose ports for links and port mappings. This all ends up in
// b.Config.ExposedPorts for runconfig.
//
func expose(b *Builder, args []string, attributes map[string]bool, original string) error {
	portsTab := args

	if b.Config.ExposedPorts == nil {
		b.Config.ExposedPorts = make(nat.PortSet)
	}

	ports, _, err := nat.ParsePortSpecs(append(portsTab, b.Config.PortSpecs...))
	if err != nil {
		return err
	}

	for port := range ports {
		if _, exists := b.Config.ExposedPorts[port]; !exists {
			b.Config.ExposedPorts[port] = struct{}{}
		}
	}
	b.Config.PortSpecs = nil

	return b.commit("", b.Config.Cmd, fmt.Sprintf("EXPOSE %v", ports))
}

func migratePortMappings(config *runconfig.Config, hostConfig *runconfig.HostConfig) error {
	if config.PortSpecs != nil {
		ports, bindings, err := nat.ParsePortSpecs(config.PortSpecs)
		if err != nil {
			return err
		}
		config.PortSpecs = nil
		if len(bindings) > 0 {
			if hostConfig == nil {
				hostConfig = &runconfig.HostConfig{}
			}
			hostConfig.PortBindings = bindings
		}

		if config.ExposedPorts == nil {
			config.ExposedPorts = make(nat.PortSet, len(ports))
		}
		for k, v := range ports {
			config.ExposedPorts[k] = v
		}
	}
	return nil
}

//.........这里部分代码省略.........
		} else if bind == "/" {
			return nil, nil, cmd, fmt.Errorf("Invalid volume: path can't be '/'")
		}
	}

	var (
		parsedArgs = cmd.Args()
		runCmd     []string
		entrypoint []string
		image      = cmd.Arg(0)
	)
	if len(parsedArgs) > 1 {
		runCmd = parsedArgs[1:]
	}
	if *flEntrypoint != "" {
		entrypoint = []string{*flEntrypoint}
	}

	lxcConf, err := parseKeyValueOpts(flLxcOpts)
	if err != nil {
		return nil, nil, cmd, err
	}

	var (
		domainname string
		hostname   = *flHostname
		parts      = strings.SplitN(hostname, ".", 2)
	)
	if len(parts) > 1 {
		hostname = parts[0]
		domainname = parts[1]
	}

	ports, portBindings, err := nat.ParsePortSpecs(flPublish.GetAll())
	if err != nil {
		return nil, nil, cmd, err
	}

	// Merge in exposed ports to the map of published ports
	for _, e := range flExpose.GetAll() {
		if strings.Contains(e, ":") {
			return nil, nil, cmd, fmt.Errorf("Invalid port format for --expose: %s", e)
		}
		//support two formats for expose, original format <portnum>/[<proto>] or <startport-endport>/[<proto>]
		proto, port := nat.SplitProtoPort(e)
		//parse the start and end port and create a sequence of ports to expose
		//if expose a port, the start and end port are the same
		start, end, err := parsers.ParsePortRange(port)
		if err != nil {
			return nil, nil, cmd, fmt.Errorf("Invalid range format for --expose: %s, error: %s", e, err)
		}
		for i := start; i <= end; i++ {
			p := nat.NewPort(proto, strconv.FormatUint(i, 10))
			if _, exists := ports[p]; !exists {
				ports[p] = struct{}{}
			}
		}
	}

	// parse device mappings
	deviceMappings := []DeviceMapping{}
	for _, device := range flDevices.GetAll() {
		deviceMapping, err := ParseDevice(device)
		if err != nil {
			return nil, nil, cmd, err
		}

func TestMerge(t *testing.T) {
	volumesImage := make(map[string]struct{})
	volumesImage["/test1"] = struct{}{}
	volumesImage["/test2"] = struct{}{}
	configImage := &Config{
		PortSpecs: []string{"1111:1111", "2222:2222"},
		Env:       []string{"VAR1=1", "VAR2=2"},
		Volumes:   volumesImage,
	}

	volumesUser := make(map[string]struct{})
	volumesUser["/test3"] = struct{}{}
	configUser := &Config{
		PortSpecs: []string{"3333:2222", "3333:3333"},
		Env:       []string{"VAR2=3", "VAR3=3"},
		Volumes:   volumesUser,
	}

	if err := Merge(configUser, configImage); err != nil {
		t.Error(err)
	}

	if len(configUser.ExposedPorts) != 3 {
		t.Fatalf("Expected 3 ExposedPorts, 1111, 2222 and 3333, found %d", len(configUser.ExposedPorts))
	}
	for portSpecs := range configUser.ExposedPorts {
		if portSpecs.Port() != "1111" && portSpecs.Port() != "2222" && portSpecs.Port() != "3333" {
			t.Fatalf("Expected 1111 or 2222 or 3333, found %s", portSpecs)
		}
	}
	if len(configUser.Env) != 3 {
		t.Fatalf("Expected 3 env var, VAR1=1, VAR2=3 and VAR3=3, found %d", len(configUser.Env))
	}
	for _, env := range configUser.Env {
		if env != "VAR1=1" && env != "VAR2=3" && env != "VAR3=3" {
			t.Fatalf("Expected VAR1=1 or VAR2=3 or VAR3=3, found %s", env)
		}
	}

	if len(configUser.Volumes) != 3 {
		t.Fatalf("Expected 3 volumes, /test1, /test2 and /test3, found %d", len(configUser.Volumes))
	}
	for v := range configUser.Volumes {
		if v != "/test1" && v != "/test2" && v != "/test3" {
			t.Fatalf("Expected /test1 or /test2 or /test3, found %s", v)
		}
	}

	ports, _, err := nat.ParsePortSpecs([]string{"0000"})
	if err != nil {
		t.Error(err)
	}
	configImage2 := &Config{
		ExposedPorts: ports,
	}

	if err := Merge(configUser, configImage2); err != nil {
		t.Error(err)
	}

	if len(configUser.ExposedPorts) != 4 {
		t.Fatalf("Expected 4 ExposedPorts, 0000, 1111, 2222 and 3333, found %d", len(configUser.ExposedPorts))
	}
	for portSpecs := range configUser.ExposedPorts {
		if portSpecs.Port() != "0" && portSpecs.Port() != "1111" && portSpecs.Port() != "2222" && portSpecs.Port() != "3333" {
			t.Fatalf("Expected %q or %q or %q or %q, found %s", 0, 1111, 2222, 3333, portSpecs)
		}
	}

}

//.........这里部分代码省略.........
	}

	var (
		parsedArgs = cmd.Args()
		runCmd     []string
		entrypoint []string
		image      string
	)
	if len(parsedArgs) >= 1 {
		image = cmd.Arg(0)
	}
	if len(parsedArgs) > 1 {
		runCmd = parsedArgs[1:]
	}
	if *flEntrypoint != "" {
		entrypoint = []string{*flEntrypoint}
	}

	lxcConf, err := parseKeyValueOpts(flLxcOpts)
	if err != nil {
		return nil, nil, cmd, err
	}

	var (
		domainname string
		hostname   = *flHostname
		parts      = strings.SplitN(hostname, ".", 2)
	)
	if len(parts) > 1 {
		hostname = parts[0]
		domainname = parts[1]
	}

	ports, portBindings, err := nat.ParsePortSpecs(flPublish.GetAll())
	if err != nil {
		return nil, nil, cmd, err
	}

	// Merge in exposed ports to the map of published ports
	for _, e := range flExpose.GetAll() {
		if strings.Contains(e, ":") {
			return nil, nil, cmd, fmt.Errorf("Invalid port format for --expose: %s", e)
		}
		p := nat.NewPort(nat.SplitProtoPort(e))
		if _, exists := ports[p]; !exists {
			ports[p] = struct{}{}
		}
	}

	// parse device mappings
	deviceMappings := []DeviceMapping{}
	for _, device := range flDevices.GetAll() {
		deviceMapping, err := ParseDevice(device)
		if err != nil {
			return nil, nil, cmd, err
		}
		deviceMappings = append(deviceMappings, deviceMapping)
	}

	// collect all the environment variables for the container
	envVariables := []string{}
	for _, ef := range flEnvFile.GetAll() {
		parsedVars, err := opts.ParseEnvFile(ef)
		if err != nil {
			return nil, nil, cmd, err
		}

func Merge(userConf, imageConf *Config) error {
	if userConf.User == "" {
		userConf.User = imageConf.User
	}
	if len(userConf.ExposedPorts) == 0 {
		userConf.ExposedPorts = imageConf.ExposedPorts
	} else if imageConf.ExposedPorts != nil {
		if userConf.ExposedPorts == nil {
			userConf.ExposedPorts = make(nat.PortSet)
		}
		for port := range imageConf.ExposedPorts {
			if _, exists := userConf.ExposedPorts[port]; !exists {
				userConf.ExposedPorts[port] = struct{}{}
			}
		}
	}

	if len(userConf.PortSpecs) > 0 {
		if userConf.ExposedPorts == nil {
			userConf.ExposedPorts = make(nat.PortSet)
		}
		ports, _, err := nat.ParsePortSpecs(userConf.PortSpecs)
		if err != nil {
			return err
		}
		for port := range ports {
			if _, exists := userConf.ExposedPorts[port]; !exists {
				userConf.ExposedPorts[port] = struct{}{}
			}
		}
		userConf.PortSpecs = nil
	}
	if len(imageConf.PortSpecs) > 0 {
		// FIXME: I think we can safely remove this. Leaving it for now for the sake of reverse-compat paranoia.
		logrus.Debugf("Migrating image port specs to containter: %s", strings.Join(imageConf.PortSpecs, ", "))
		if userConf.ExposedPorts == nil {
			userConf.ExposedPorts = make(nat.PortSet)
		}

		ports, _, err := nat.ParsePortSpecs(imageConf.PortSpecs)
		if err != nil {
			return err
		}
		for port := range ports {
			if _, exists := userConf.ExposedPorts[port]; !exists {
				userConf.ExposedPorts[port] = struct{}{}
			}
		}
	}

	if len(userConf.Env) == 0 {
		userConf.Env = imageConf.Env
	} else {
		for _, imageEnv := range imageConf.Env {
			found := false
			imageEnvKey := strings.Split(imageEnv, "=")[0]
			for _, userEnv := range userConf.Env {
				userEnvKey := strings.Split(userEnv, "=")[0]
				if imageEnvKey == userEnvKey {
					found = true
				}
			}
			if !found {
				userConf.Env = append(userConf.Env, imageEnv)
			}
		}
	}

	if userConf.Labels == nil {
		userConf.Labels = map[string]string{}
	}
	if imageConf.Labels != nil {
		for l := range userConf.Labels {
			imageConf.Labels[l] = userConf.Labels[l]
		}
		userConf.Labels = imageConf.Labels
	}

	if userConf.Entrypoint.Len() == 0 {
		if userConf.Cmd.Len() == 0 {
			userConf.Cmd = imageConf.Cmd
		}

		if userConf.Entrypoint == nil {
			userConf.Entrypoint = imageConf.Entrypoint
		}
	}
	if userConf.WorkingDir == "" {
		userConf.WorkingDir = imageConf.WorkingDir
	}
	if len(userConf.Volumes) == 0 {
		userConf.Volumes = imageConf.Volumes
	} else {
		for k, v := range imageConf.Volumes {
			userConf.Volumes[k] = v
		}
	}
	return nil
}

func Convert(c *project.ServiceConfig) (*runconfig.Config, *runconfig.HostConfig, error) {
	vs := Filter(c.Volumes, isVolume)

	volumes := make(map[string]struct{}, len(vs))
	for _, v := range vs {
		volumes[v] = struct{}{}
	}

	cmd, _ := shlex.Split(c.Command)
	entrypoint, _ := shlex.Split(c.Entrypoint)
	ports, binding, err := nat.ParsePortSpecs(c.Ports)
	if err != nil {
		return nil, nil, err
	}
	restart, err := runconfig.ParseRestartPolicy(c.Restart)
	if err != nil {
		return nil, nil, err
	}
	dns := c.Dns.Slice()
	dnssearch := c.DnsSearch.Slice()
	labels := c.Labels.MapParts()

	if len(c.Expose) > 0 {
		exposedPorts, _, err := nat.ParsePortSpecs(c.Expose)
		ports = exposedPorts
		if err != nil {
			return nil, nil, err
		}
	}

	config := &runconfig.Config{
		Entrypoint:   runconfig.NewEntrypoint(entrypoint...),
		Hostname:     c.Hostname,
		Domainname:   c.DomainName,
		User:         c.User,
		Env:          c.Environment.Slice(),
		Cmd:          runconfig.NewCommand(cmd...),
		Image:        c.Image,
		Labels:       labels,
		ExposedPorts: ports,
		Tty:          c.Tty,
		OpenStdin:    c.StdinOpen,
		WorkingDir:   c.WorkingDir,
		Volumes:      volumes,
	}
	host_config := &runconfig.HostConfig{
		VolumesFrom: c.VolumesFrom,
		CapAdd:      c.CapAdd,
		CapDrop:     c.CapDrop,
		CpuShares:   c.CpuShares,
		Privileged:  c.Privileged,
		Binds:       Filter(c.Volumes, isBind),
		Dns:         dns,
		DnsSearch:   dnssearch,
		LogConfig: runconfig.LogConfig{
			Type: c.LogDriver,
		},
		Memory:         c.MemLimit,
		NetworkMode:    runconfig.NetworkMode(c.Net),
		ReadonlyRootfs: c.ReadOnly,
		PidMode:        runconfig.PidMode(c.Pid),
		IpcMode:        runconfig.IpcMode(c.Ipc),
		PortBindings:   binding,
		RestartPolicy:  restart,
	}

	return config, host_config, nil
}

func Convert(c *project.ServiceConfig) (*runconfig.Config, *runconfig.HostConfig, error) {
	vs := Filter(c.Volumes, isVolume)

	volumes := make(map[string]struct{}, len(vs))
	for _, v := range vs {
		volumes[v] = struct{}{}
	}

	ports, binding, err := nat.ParsePortSpecs(c.Ports)
	if err != nil {
		return nil, nil, err
	}
	restart, err := runconfig.ParseRestartPolicy(c.Restart)
	if err != nil {
		return nil, nil, err
	}

	if exposedPorts, _, err := nat.ParsePortSpecs(c.Expose); err != nil {
		return nil, nil, err
	} else {
		for k, v := range exposedPorts {
			ports[k] = v
		}
	}

	deviceMappings, err := parseDevices(c.Devices)
	if err != nil {
		return nil, nil, err
	}

	config := &runconfig.Config{
		Entrypoint:   runconfig.NewEntrypoint(c.Entrypoint.Slice()...),
		Hostname:     c.Hostname,
		Domainname:   c.DomainName,
		User:         c.User,
		Env:          c.Environment.Slice(),
		Cmd:          runconfig.NewCommand(c.Command.Slice()...),
		Image:        c.Image,
		Labels:       c.Labels.MapParts(),
		ExposedPorts: ports,
		Tty:          c.Tty,
		OpenStdin:    c.StdinOpen,
		WorkingDir:   c.WorkingDir,
		VolumeDriver: c.VolumeDriver,
		Volumes:      volumes,
	}
	host_config := &runconfig.HostConfig{
		VolumesFrom: c.VolumesFrom,
		CapAdd:      c.CapAdd,
		CapDrop:     c.CapDrop,
		CpuShares:   c.CpuShares,
		CpusetCpus:  c.CpuSet,
		ExtraHosts:  c.ExtraHosts,
		Privileged:  c.Privileged,
		Binds:       Filter(c.Volumes, isBind),
		Devices:     deviceMappings,
		Dns:         c.Dns.Slice(),
		DnsSearch:   c.DnsSearch.Slice(),
		LogConfig: runconfig.LogConfig{
			Type:   c.LogDriver,
			Config: c.LogOpt,
		},
		Memory:         c.MemLimit,
		MemorySwap:     c.MemSwapLimit,
		NetworkMode:    runconfig.NetworkMode(c.Net),
		ReadonlyRootfs: c.ReadOnly,
		PidMode:        runconfig.PidMode(c.Pid),
		UTSMode:        runconfig.UTSMode(c.Uts),
		IpcMode:        runconfig.IpcMode(c.Ipc),
		PortBindings:   binding,
		RestartPolicy:  restart,
		SecurityOpt:    c.SecurityOpt,
	}

	return config, host_config, nil
}

//.........这里部分代码省略.........
			return nil, nil, cmd, fmt.Errorf("Invalid volume: path can't be '/'")
		}
	}

	var (
		parsedArgs = cmd.Args()
		runCmd     *Command
		entrypoint *Entrypoint
		image      = cmd.Arg(0)
	)
	if len(parsedArgs) > 1 {
		runCmd = NewCommand(parsedArgs[1:]...)
	}
	if *flEntrypoint != "" {
		entrypoint = NewEntrypoint(*flEntrypoint)
	}

	lc, err := parseKeyValueOpts(flLxcOpts)
	if err != nil {
		return nil, nil, cmd, err
	}
	lxcConf := NewLxcConfig(lc)

	var (
		domainname string
		hostname   = *flHostname
		parts      = strings.SplitN(hostname, ".", 2)
	)
	if len(parts) > 1 {
		hostname = parts[0]
		domainname = parts[1]
	}

	ports, portBindings, err := nat.ParsePortSpecs(flPublish.GetAll())
	if err != nil {
		return nil, nil, cmd, err
	}

	// Merge in exposed ports to the map of published ports
	for _, e := range flExpose.GetAll() {
		if strings.Contains(e, ":") {
			return nil, nil, cmd, fmt.Errorf("Invalid port format for --expose: %s", e)
		}
		//support two formats for expose, original format <portnum>/[<proto>] or <startport-endport>/[<proto>]
		proto, port := nat.SplitProtoPort(e)
		//parse the start and end port and create a sequence of ports to expose
		//if expose a port, the start and end port are the same
		start, end, err := parsers.ParsePortRange(port)
		if err != nil {
			return nil, nil, cmd, fmt.Errorf("Invalid range format for --expose: %s, error: %s", e, err)
		}
		for i := start; i <= end; i++ {
			p := nat.NewPort(proto, strconv.FormatUint(i, 10))
			if _, exists := ports[p]; !exists {
				ports[p] = struct{}{}
			}
		}
	}

	// parse device mappings
	deviceMappings := []DeviceMapping{}
	for _, device := range flDevices.GetAll() {
		deviceMapping, err := ParseDevice(device)
		if err != nil {
			return nil, nil, cmd, err
		}