traefik/provider/label/parser.go
Ludovic Fernandez b54c956c5e Adds Docker provider support
Co-authored-by: Julien Salleyron <julien@containo.us>
2019-01-18 15:18:04 +01:00

55 lines
1.3 KiB
Go

package label
import (
"github.com/containous/traefik/config"
"github.com/containous/traefik/provider/label/internal"
)
// DecodeConfiguration Converts the labels to a configuration.
func DecodeConfiguration(labels map[string]string) (*config.Configuration, error) {
conf := &config.Configuration{}
err := Decode(labels, conf, "traefik.services", "traefik.routers", "traefik.middlewares")
if err != nil {
return nil, err
}
return conf, nil
}
// EncodeConfiguration Converts a configuration to labels.
func EncodeConfiguration(conf *config.Configuration) (map[string]string, error) {
return Encode(conf)
}
// Decode Converts the labels to an element.
// labels -> [ node -> node + metadata (type) ] -> element (node)
func Decode(labels map[string]string, element interface{}, filters ...string) error {
node, err := internal.DecodeToNode(labels, filters...)
if err != nil {
return err
}
err = internal.AddMetadata(element, node)
if err != nil {
return err
}
err = internal.Fill(element, node)
if err != nil {
return err
}
return nil
}
// Encode Converts an element to labels.
// element -> node (value) -> label (node)
func Encode(element interface{}) (map[string]string, error) {
node, err := internal.EncodeToNode(element)
if err != nil {
return nil, err
}
return internal.EncodeNode(node), nil
}