92 lines
2.1 KiB
Go
92 lines
2.1 KiB
Go
/*
|
|
Copyright 2016 The Kubernetes Authors.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package discovery
|
|
|
|
import (
|
|
"fmt"
|
|
"net/url"
|
|
"strings"
|
|
|
|
"github.com/spf13/pflag"
|
|
|
|
"k8s.io/kubernetes/cmd/kubeadm/app/apis/kubeadm"
|
|
"k8s.io/kubernetes/cmd/kubeadm/app/discovery/file"
|
|
"k8s.io/kubernetes/cmd/kubeadm/app/discovery/https"
|
|
"k8s.io/kubernetes/cmd/kubeadm/app/discovery/token"
|
|
)
|
|
|
|
type discoveryValue struct {
|
|
v *kubeadm.Discovery
|
|
}
|
|
|
|
func NewDiscoveryValue(d *kubeadm.Discovery) pflag.Value {
|
|
return &discoveryValue{
|
|
v: d,
|
|
}
|
|
}
|
|
|
|
func (d *discoveryValue) String() string {
|
|
switch {
|
|
case d.v.HTTPS != nil:
|
|
return d.v.HTTPS.URL
|
|
case d.v.File != nil:
|
|
return "file://" + d.v.File.Path
|
|
case d.v.Token != nil:
|
|
return fmt.Sprintf("token://%s:%s@%s", d.v.Token.ID, d.v.Token.Secret, strings.Join(d.v.Token.Addresses, ","))
|
|
default:
|
|
return "unknown"
|
|
}
|
|
}
|
|
|
|
func (d *discoveryValue) Set(s string) error {
|
|
var kd kubeadm.Discovery
|
|
if err := ParseURL(&kd, s); err != nil {
|
|
return err
|
|
}
|
|
*d.v = kd
|
|
return nil
|
|
}
|
|
|
|
func (d *discoveryValue) Type() string {
|
|
return "discovery"
|
|
}
|
|
|
|
func ParseURL(d *kubeadm.Discovery, s string) error {
|
|
u, err := url.Parse(s)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
switch u.Scheme {
|
|
case "https":
|
|
return https.Parse(u, d)
|
|
case "file":
|
|
return file.Parse(u, d)
|
|
case "token":
|
|
// Make sure a valid RFC 3986 URL has been passed and parsed.
|
|
// See https://github.com/kubernetes/kubeadm/issues/95#issuecomment-270431296 for more details.
|
|
if !strings.Contains(s, "@") {
|
|
s := s + "@"
|
|
u, err = url.Parse(s)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
return token.Parse(u, d)
|
|
default:
|
|
return fmt.Errorf("unknown discovery scheme")
|
|
}
|
|
}
|