зеркало из https://github.com/microsoft/docker.git
100 строки
2.3 KiB
Go
100 строки
2.3 KiB
Go
package opts
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import (
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"encoding/csv"
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"fmt"
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"strconv"
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"strings"
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"github.com/docker/docker/api/types/swarm"
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)
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const (
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portOptTargetPort = "target"
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portOptPublishedPort = "published"
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portOptProtocol = "protocol"
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portOptMode = "mode"
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)
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type PortOpt struct {
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ports []swarm.PortConfig
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}
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// Set a new port value
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func (p *PortOpt) Set(value string) error {
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csvReader := csv.NewReader(strings.NewReader(value))
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fields, err := csvReader.Read()
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if err != nil {
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return err
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}
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pConfig := swarm.PortConfig{}
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for _, field := range fields {
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parts := strings.SplitN(field, "=", 2)
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if len(parts) != 2 {
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return fmt.Errorf("invalid field %s", field)
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}
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key := strings.ToLower(parts[0])
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value := strings.ToLower(parts[1])
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switch key {
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case portOptProtocol:
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if value != string(swarm.PortConfigProtocolTCP) && value != string(swarm.PortConfigProtocolUDP) {
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return fmt.Errorf("invalid protocol value %s", value)
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}
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pConfig.Protocol = swarm.PortConfigProtocol(value)
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case portOptMode:
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if value != string(swarm.PortConfigPublishModeIngress) && value != string(swarm.PortConfigPublishModeHost) {
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return fmt.Errorf("invalid publish mode value %s", value)
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}
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pConfig.PublishMode = swarm.PortConfigPublishMode(value)
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case portOptTargetPort:
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tPort, err := strconv.ParseUint(value, 10, 16)
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if err != nil {
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return err
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}
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pConfig.TargetPort = uint32(tPort)
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case portOptPublishedPort:
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pPort, err := strconv.ParseUint(value, 10, 16)
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if err != nil {
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return err
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}
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pConfig.PublishedPort = uint32(pPort)
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default:
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return fmt.Errorf("invalid field key %s", key)
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}
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}
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if pConfig.TargetPort == 0 {
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return fmt.Errorf("missing mandatory field %q", portOptTargetPort)
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}
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p.ports = append(p.ports, pConfig)
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return nil
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}
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// Type returns the type of this option
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func (p *PortOpt) Type() string {
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return "port"
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}
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// String returns a string repr of this option
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func (p *PortOpt) String() string {
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ports := []string{}
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for _, port := range p.ports {
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repr := fmt.Sprintf("%v:%v/%s/%s", port.PublishedPort, port.TargetPort, port.Protocol, port.PublishMode)
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ports = append(ports, repr)
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}
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return strings.Join(ports, ", ")
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}
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// Value returns the ports
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func (p *PortOpt) Value() []swarm.PortConfig {
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return p.ports
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}
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