forked from k3s-io/kubernetes
-
Notifications
You must be signed in to change notification settings - Fork 0
/
rest.go
159 lines (136 loc) · 4.9 KB
/
rest.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
/*
Copyright 2014 Google Inc. All rights reserved.
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 minion
import (
"errors"
"fmt"
"net"
"strconv"
"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
kerrors "github.com/GoogleCloudPlatform/kubernetes/pkg/api/errors"
"github.com/GoogleCloudPlatform/kubernetes/pkg/api/validation"
"github.com/GoogleCloudPlatform/kubernetes/pkg/apiserver"
"github.com/GoogleCloudPlatform/kubernetes/pkg/labels"
"github.com/GoogleCloudPlatform/kubernetes/pkg/master/ports"
"github.com/GoogleCloudPlatform/kubernetes/pkg/runtime"
"github.com/GoogleCloudPlatform/kubernetes/pkg/watch"
)
// REST adapts minion into apiserver's RESTStorage model.
type REST struct {
registry Registry
}
// NewREST returns a new apiserver.RESTStorage implementation for minion.
func NewREST(m Registry) *REST {
return &REST{
registry: m,
}
}
var ErrDoesNotExist = errors.New("The requested resource does not exist.")
var ErrNotHealty = errors.New("The requested minion is not healthy.")
// Create satisfies the RESTStorage interface.
func (rs *REST) Create(ctx api.Context, obj runtime.Object) (<-chan apiserver.RESTResult, error) {
minion, ok := obj.(*api.Node)
if !ok {
return nil, fmt.Errorf("not a minion: %#v", obj)
}
if errs := validation.ValidateMinion(minion); len(errs) > 0 {
return nil, kerrors.NewInvalid("minion", minion.Name, errs)
}
api.FillObjectMetaSystemFields(ctx, &minion.ObjectMeta)
return apiserver.MakeAsync(func() (runtime.Object, error) {
err := rs.registry.CreateMinion(ctx, minion)
if err != nil {
return nil, err
}
return minion, nil
}), nil
}
// Delete satisfies the RESTStorage interface.
func (rs *REST) Delete(ctx api.Context, id string) (<-chan apiserver.RESTResult, error) {
minion, err := rs.registry.GetMinion(ctx, id)
if minion == nil {
return nil, ErrDoesNotExist
}
if err != nil {
return nil, err
}
return apiserver.MakeAsync(func() (runtime.Object, error) {
return &api.Status{Status: api.StatusSuccess}, rs.registry.DeleteMinion(ctx, id)
}), nil
}
// Get satisfies the RESTStorage interface.
func (rs *REST) Get(ctx api.Context, id string) (runtime.Object, error) {
minion, err := rs.registry.GetMinion(ctx, id)
if err != nil {
return minion, err
}
if minion == nil {
return nil, ErrDoesNotExist
}
return minion, err
}
// List satisfies the RESTStorage interface.
func (rs *REST) List(ctx api.Context, label, field labels.Selector) (runtime.Object, error) {
return rs.registry.ListMinions(ctx)
}
func (rs *REST) New() runtime.Object {
return &api.Node{}
}
func (*REST) NewList() runtime.Object {
return &api.NodeList{}
}
// Update satisfies the RESTStorage interface.
func (rs *REST) Update(ctx api.Context, obj runtime.Object) (<-chan apiserver.RESTResult, error) {
minion, ok := obj.(*api.Node)
if !ok {
return nil, fmt.Errorf("not a minion: %#v", obj)
}
// This is hacky, but minions don't really have a namespace, but kubectl currently automatically
// stuffs one in there. Fix it here temporarily until we fix kubectl
if minion.Namespace == api.NamespaceDefault {
minion.Namespace = api.NamespaceNone
}
// Clear out the self link, if specified, since it's not in the registry either.
minion.SelfLink = ""
// TODO: GetMinion will health check the minion, but we shouldn't require the minion to be
// running for updating labels.
oldMinion, err := rs.registry.GetMinion(ctx, minion.Name)
if err != nil {
return nil, err
}
if errs := validation.ValidateMinionUpdate(oldMinion, minion); len(errs) > 0 {
return nil, kerrors.NewInvalid("minion", minion.Name, errs)
}
return apiserver.MakeAsync(func() (runtime.Object, error) {
err := rs.registry.UpdateMinion(ctx, minion)
if err != nil {
return nil, err
}
return rs.registry.GetMinion(ctx, minion.Name)
}), nil
}
// Watch returns Minions events via a watch.Interface.
// It implements apiserver.ResourceWatcher.
func (rs *REST) Watch(ctx api.Context, label, field labels.Selector, resourceVersion string) (watch.Interface, error) {
return rs.registry.WatchMinions(ctx, label, field, resourceVersion)
}
// ResourceLocation returns a URL to which one can send traffic for the specified minion.
func (rs *REST) ResourceLocation(ctx api.Context, id string) (string, error) {
minion, err := rs.registry.GetMinion(ctx, id)
if err != nil {
return "", err
}
host := minion.Name
// TODO: Minion webservers should be secure!
return "http://" + net.JoinHostPort(host, strconv.Itoa(ports.KubeletPort)), nil
}