traefik/types/dns_resolvers.go
2018-10-25 17:38:04 +02:00

44 lines
1.1 KiB
Go

package types
import (
"fmt"
"strings"
)
// DNSResolvers is a list of DNSes that we will try to resolve the challenged FQDN against
type DNSResolvers []string
// String is the method to format the flag's value, part of the flag.Value interface.
// The String method's output will be used in diagnostics.
func (r *DNSResolvers) String() string {
return strings.Join(*r, ",")
}
// Set is the method to set the flag value, part of the flag.Value interface.
// Set's argument is a string to be parsed to set the flag.
// It's a comma-separated list, so we split it.
func (r *DNSResolvers) Set(value string) error {
entryPoints := strings.Split(value, ",")
if len(entryPoints) == 0 {
return fmt.Errorf("wrong DNSResolvers format: %s", value)
}
for _, entryPoint := range entryPoints {
*r = append(*r, entryPoint)
}
return nil
}
// Get return the DNSResolvers list
func (r *DNSResolvers) Get() interface{} {
return *r
}
// SetValue sets the DNSResolvers list
func (r *DNSResolvers) SetValue(val interface{}) {
*r = val.(DNSResolvers)
}
// Type is type of the struct
func (r *DNSResolvers) Type() string {
return "dnsresolvers"
}