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