コード例 #1
0
ファイル: nat.go プロジェクト: eldarion-gondor/cli
// ParsePortSpecs receives port specs in the format of ip:public:private/proto and parses
// these in to the internal types
func ParsePortSpecs(ports []string) (map[Port]struct{}, map[Port][]PortBinding, error) {
	var (
		exposedPorts = make(map[Port]struct{}, len(ports))
		bindings     = make(map[Port][]PortBinding)
	)

	for _, rawPort := range ports {
		proto := "tcp"

		if i := strings.LastIndex(rawPort, "/"); i != -1 {
			proto = rawPort[i+1:]
			rawPort = rawPort[:i]
		}
		if !strings.Contains(rawPort, ":") {
			rawPort = fmt.Sprintf("::%s", rawPort)
		} else if len(strings.Split(rawPort, ":")) == 2 {
			rawPort = fmt.Sprintf(":%s", rawPort)
		}

		parts, err := parsers.PartParser(portSpecTemplate, rawPort)
		if err != nil {
			return nil, nil, err
		}

		var (
			containerPort = parts["containerPort"]
			rawIP         = parts["ip"]
			hostPort      = parts["hostPort"]
		)

		if rawIP != "" && net.ParseIP(rawIP) == nil {
			return nil, nil, fmt.Errorf("Invalid ip address: %s", rawIP)
		}
		if containerPort == "" {
			return nil, nil, fmt.Errorf("No port specified: %s<empty>", rawPort)
		}

		startPort, endPort, err := parsers.ParsePortRange(containerPort)
		if err != nil {
			return nil, nil, fmt.Errorf("Invalid containerPort: %s", containerPort)
		}

		var startHostPort, endHostPort uint64 = 0, 0
		if len(hostPort) > 0 {
			startHostPort, endHostPort, err = parsers.ParsePortRange(hostPort)
			if err != nil {
				return nil, nil, fmt.Errorf("Invalid hostPort: %s", hostPort)
			}
		}

		if hostPort != "" && (endPort-startPort) != (endHostPort-startHostPort) {
			// Allow host port range iff containerPort is not a range.
			// In this case, use the host port range as the dynamic
			// host port range to allocate into.
			if endPort != startPort {
				return nil, nil, fmt.Errorf("Invalid ranges specified for container and host Ports: %s and %s", containerPort, hostPort)
			}
		}

		if !validateProto(strings.ToLower(proto)) {
			return nil, nil, fmt.Errorf("Invalid proto: %s", proto)
		}

		for i := uint64(0); i <= (endPort - startPort); i++ {
			containerPort = strconv.FormatUint(startPort+i, 10)
			if len(hostPort) > 0 {
				hostPort = strconv.FormatUint(startHostPort+i, 10)
			}
			// Set hostPort to a range only if there is a single container port
			// and a dynamic host port.
			if startPort == endPort && startHostPort != endHostPort {
				hostPort = fmt.Sprintf("%s-%s", hostPort, strconv.FormatUint(endHostPort, 10))
			}
			port, err := NewPort(strings.ToLower(proto), containerPort)
			if err != nil {
				return nil, nil, err
			}
			if _, exists := exposedPorts[port]; !exists {
				exposedPorts[port] = struct{}{}
			}

			binding := PortBinding{
				HostIP:   rawIP,
				HostPort: hostPort,
			}
			bslice, exists := bindings[port]
			if !exists {
				bslice = []PortBinding{}
			}
			bindings[port] = append(bslice, binding)
		}
	}
	return exposedPorts, bindings, nil
}
コード例 #2
0
ファイル: opts.go プロジェクト: devick/flynn
func ValidateLink(val string) (string, error) {
	if _, err := parsers.PartParser("name:alias", val); err != nil {
		return val, err
	}
	return val, nil
}
コード例 #3
0
ファイル: nat.go プロジェクト: devick/flynn
// We will receive port specs in the format of ip:public:private/proto and these need to be
// parsed in the internal types
func ParsePortSpecs(ports []string) (map[Port]struct{}, map[Port][]PortBinding, error) {
	var (
		exposedPorts = make(map[Port]struct{}, len(ports))
		bindings     = make(map[Port][]PortBinding)
	)

	for _, rawPort := range ports {
		proto := "tcp"

		if i := strings.LastIndex(rawPort, "/"); i != -1 {
			proto = rawPort[i+1:]
			rawPort = rawPort[:i]
		}
		if !strings.Contains(rawPort, ":") {
			rawPort = fmt.Sprintf("::%s", rawPort)
		} else if len(strings.Split(rawPort, ":")) == 2 {
			rawPort = fmt.Sprintf(":%s", rawPort)
		}

		parts, err := parsers.PartParser(PortSpecTemplate, rawPort)
		if err != nil {
			return nil, nil, err
		}

		var (
			containerPort = parts["containerPort"]
			rawIp         = parts["ip"]
			hostPort      = parts["hostPort"]
		)

		if rawIp != "" && net.ParseIP(rawIp) == nil {
			return nil, nil, fmt.Errorf("Invalid ip address: %s", rawIp)
		}
		if containerPort == "" {
			return nil, nil, fmt.Errorf("No port specified: %s<empty>", rawPort)
		}

		startPort, endPort, err := parsers.ParsePortRange(containerPort)
		if err != nil {
			return nil, nil, fmt.Errorf("Invalid containerPort: %s", containerPort)
		}

		var startHostPort, endHostPort uint64 = 0, 0
		if len(hostPort) > 0 {
			startHostPort, endHostPort, err = parsers.ParsePortRange(hostPort)
			if err != nil {
				return nil, nil, fmt.Errorf("Invalid hostPort: %s", hostPort)
			}
		}

		if hostPort != "" && (endPort-startPort) != (endHostPort-startHostPort) {
			return nil, nil, fmt.Errorf("Invalid ranges specified for container and host Ports: %s and %s", containerPort, hostPort)
		}

		if !validateProto(strings.ToLower(proto)) {
			return nil, nil, fmt.Errorf("Invalid proto: %s", proto)
		}

		for i := uint64(0); i <= (endPort - startPort); i++ {
			containerPort = strconv.FormatUint(startPort+i, 10)
			if len(hostPort) > 0 {
				hostPort = strconv.FormatUint(startHostPort+i, 10)
			}
			port := NewPort(strings.ToLower(proto), containerPort)
			if _, exists := exposedPorts[port]; !exists {
				exposedPorts[port] = struct{}{}
			}

			binding := PortBinding{
				HostIp:   rawIp,
				HostPort: hostPort,
			}
			bslice, exists := bindings[port]
			if !exists {
				bslice = []PortBinding{}
			}
			bindings[port] = append(bslice, binding)
		}
	}
	return exposedPorts, bindings, nil
}