107 lines
2.4 KiB
Go
107 lines
2.4 KiB
Go
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package opts
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import (
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"encoding/csv"
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"fmt"
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"regexp"
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"strings"
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)
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const (
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networkOptName = "name"
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networkOptAlias = "alias"
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driverOpt = "driver-opt"
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)
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// NetworkAttachmentOpts represents the network options for endpoint creation
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type NetworkAttachmentOpts struct {
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Target string
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Aliases []string
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DriverOpts map[string]string
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}
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// NetworkOpt represents a network config in swarm mode.
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type NetworkOpt struct {
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options []NetworkAttachmentOpts
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}
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// Set networkopts value
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func (n *NetworkOpt) Set(value string) error {
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longSyntax, err := regexp.MatchString(`\w+=\w+(,\w+=\w+)*`, value)
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if err != nil {
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return err
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}
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var netOpt NetworkAttachmentOpts
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if longSyntax {
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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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netOpt.Aliases = []string{}
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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.TrimSpace(strings.ToLower(parts[0]))
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value := strings.TrimSpace(strings.ToLower(parts[1]))
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switch key {
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case networkOptName:
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netOpt.Target = value
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case networkOptAlias:
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netOpt.Aliases = append(netOpt.Aliases, value)
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case driverOpt:
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key, value, err = parseDriverOpt(value)
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if err == nil {
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if netOpt.DriverOpts == nil {
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netOpt.DriverOpts = make(map[string]string)
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}
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netOpt.DriverOpts[key] = value
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} else {
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return err
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}
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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 len(netOpt.Target) == 0 {
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return fmt.Errorf("network name/id is not specified")
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}
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} else {
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netOpt.Target = value
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}
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n.options = append(n.options, netOpt)
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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 (n *NetworkOpt) Type() string {
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return "network"
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}
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// Value returns the networkopts
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func (n *NetworkOpt) Value() []NetworkAttachmentOpts {
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return n.options
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}
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// String returns the network opts as a string
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func (n *NetworkOpt) String() string {
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return ""
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}
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func parseDriverOpt(driverOpt string) (string, string, error) {
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parts := strings.SplitN(driverOpt, "=", 2)
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if len(parts) != 2 {
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return "", "", fmt.Errorf("invalid key value pair format in driver options")
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}
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key := strings.TrimSpace(strings.ToLower(parts[0]))
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value := strings.TrimSpace(strings.ToLower(parts[1]))
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return key, value, nil
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}
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