-
Notifications
You must be signed in to change notification settings - Fork 39.2k
/
azure_provision.go
232 lines (203 loc) · 7.73 KB
/
azure_provision.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
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
/*
Copyright 2017 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 azure_file
import (
"fmt"
"strings"
"github.com/Azure/azure-sdk-for-go/services/storage/mgmt/2018-07-01/storage"
"k8s.io/klog"
"k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/api/resource"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
cloudprovider "k8s.io/cloud-provider"
volumehelpers "k8s.io/cloud-provider/volume/helpers"
"k8s.io/kubernetes/pkg/cloudprovider/providers/azure"
"k8s.io/kubernetes/pkg/volume"
"k8s.io/kubernetes/pkg/volume/util"
utilstrings "k8s.io/utils/strings"
)
var _ volume.DeletableVolumePlugin = &azureFilePlugin{}
var _ volume.ProvisionableVolumePlugin = &azureFilePlugin{}
// Abstract interface to file share operations.
// azure cloud provider should implement it
type azureCloudProvider interface {
// create a file share
CreateFileShare(shareName, accountName, accountType, accountKind, resourceGroup, location string, requestGiB int) (string, string, error)
// delete a file share
DeleteFileShare(accountName, accountKey, shareName string) error
// resize a file share
ResizeFileShare(accountName, accountKey, name string, sizeGiB int) error
}
type azureFileDeleter struct {
*azureFile
accountName, accountKey, shareName string
azureProvider azureCloudProvider
}
func (plugin *azureFilePlugin) NewDeleter(spec *volume.Spec) (volume.Deleter, error) {
azure, err := getAzureCloudProvider(plugin.host.GetCloudProvider())
if err != nil {
klog.V(4).Infof("failed to get azure provider")
return nil, err
}
return plugin.newDeleterInternal(spec, &azureSvc{}, azure)
}
func (plugin *azureFilePlugin) newDeleterInternal(spec *volume.Spec, util azureUtil, azure azureCloudProvider) (volume.Deleter, error) {
if spec.PersistentVolume != nil && spec.PersistentVolume.Spec.AzureFile == nil {
return nil, fmt.Errorf("invalid PV spec")
}
secretName, secretNamespace, err := getSecretNameAndNamespace(spec, spec.PersistentVolume.Spec.ClaimRef.Namespace)
if err != nil {
return nil, err
}
shareName := spec.PersistentVolume.Spec.AzureFile.ShareName
if accountName, accountKey, err := util.GetAzureCredentials(plugin.host, secretNamespace, secretName); err != nil {
return nil, err
} else {
return &azureFileDeleter{
azureFile: &azureFile{
volName: spec.Name(),
plugin: plugin,
},
shareName: shareName,
accountName: accountName,
accountKey: accountKey,
azureProvider: azure,
}, nil
}
}
func (plugin *azureFilePlugin) NewProvisioner(options volume.VolumeOptions) (volume.Provisioner, error) {
azure, err := getAzureCloudProvider(plugin.host.GetCloudProvider())
if err != nil {
klog.V(4).Infof("failed to get azure provider")
return nil, err
}
if len(options.PVC.Spec.AccessModes) == 0 {
options.PVC.Spec.AccessModes = plugin.GetAccessModes()
}
return plugin.newProvisionerInternal(options, azure)
}
func (plugin *azureFilePlugin) newProvisionerInternal(options volume.VolumeOptions, azure azureCloudProvider) (volume.Provisioner, error) {
return &azureFileProvisioner{
azureFile: &azureFile{
plugin: plugin,
},
azureProvider: azure,
util: &azureSvc{},
options: options,
}, nil
}
var _ volume.Deleter = &azureFileDeleter{}
func (f *azureFileDeleter) GetPath() string {
name := azureFilePluginName
return f.plugin.host.GetPodVolumeDir(f.podUID, utilstrings.EscapeQualifiedName(name), f.volName)
}
func (f *azureFileDeleter) Delete() error {
klog.V(4).Infof("deleting volume %s", f.shareName)
return f.azureProvider.DeleteFileShare(f.accountName, f.accountKey, f.shareName)
}
type azureFileProvisioner struct {
*azureFile
azureProvider azureCloudProvider
util azureUtil
options volume.VolumeOptions
}
var _ volume.Provisioner = &azureFileProvisioner{}
func (a *azureFileProvisioner) Provision(selectedNode *v1.Node, allowedTopologies []v1.TopologySelectorTerm) (*v1.PersistentVolume, error) {
if !util.AccessModesContainedInAll(a.plugin.GetAccessModes(), a.options.PVC.Spec.AccessModes) {
return nil, fmt.Errorf("invalid AccessModes %v: only AccessModes %v are supported", a.options.PVC.Spec.AccessModes, a.plugin.GetAccessModes())
}
if util.CheckPersistentVolumeClaimModeBlock(a.options.PVC) {
return nil, fmt.Errorf("%s does not support block volume provisioning", a.plugin.GetPluginName())
}
var sku, resourceGroup, location, account, shareName string
capacity := a.options.PVC.Spec.Resources.Requests[v1.ResourceName(v1.ResourceStorage)]
requestGiB := int(volumehelpers.RoundUpToGiB(capacity))
secretNamespace := a.options.PVC.Namespace
// Apply ProvisionerParameters (case-insensitive). We leave validation of
// the values to the cloud provider.
for k, v := range a.options.Parameters {
switch strings.ToLower(k) {
case "skuname":
sku = v
case "location":
location = v
case "storageaccount":
account = v
case "secretnamespace":
secretNamespace = v
case "resourcegroup":
resourceGroup = v
case "sharename":
shareName = v
default:
return nil, fmt.Errorf("invalid option %q for volume plugin %s", k, a.plugin.GetPluginName())
}
}
// TODO: implement c.options.ProvisionerSelector parsing
if a.options.PVC.Spec.Selector != nil {
return nil, fmt.Errorf("claim.Spec.Selector is not supported for dynamic provisioning on Azure file")
}
if shareName == "" {
// File share name has a length limit of 63, and it cannot contain two consecutive '-'s.
name := util.GenerateVolumeName(a.options.ClusterName, a.options.PVName, 63)
shareName = strings.Replace(name, "--", "-", -1)
}
// when use azure file premium, account kind should be specified as FileStorage
accountKind := string(storage.StorageV2)
if strings.HasPrefix(strings.ToLower(sku), "premium") {
accountKind = string(storage.FileStorage)
}
account, key, err := a.azureProvider.CreateFileShare(shareName, account, sku, accountKind, resourceGroup, location, requestGiB)
if err != nil {
return nil, err
}
// create a secret for storage account and key
secretName, err := a.util.SetAzureCredentials(a.plugin.host, secretNamespace, account, key)
if err != nil {
return nil, err
}
// create PV
pv := &v1.PersistentVolume{
ObjectMeta: metav1.ObjectMeta{
Name: a.options.PVName,
Labels: map[string]string{},
Annotations: map[string]string{
util.VolumeDynamicallyCreatedByKey: "azure-file-dynamic-provisioner",
},
},
Spec: v1.PersistentVolumeSpec{
PersistentVolumeReclaimPolicy: a.options.PersistentVolumeReclaimPolicy,
AccessModes: a.options.PVC.Spec.AccessModes,
Capacity: v1.ResourceList{
v1.ResourceName(v1.ResourceStorage): resource.MustParse(fmt.Sprintf("%dGi", requestGiB)),
},
PersistentVolumeSource: v1.PersistentVolumeSource{
AzureFile: &v1.AzureFilePersistentVolumeSource{
SecretName: secretName,
ShareName: shareName,
SecretNamespace: &secretNamespace,
},
},
MountOptions: a.options.MountOptions,
},
}
return pv, nil
}
// Return cloud provider
func getAzureCloudProvider(cloudProvider cloudprovider.Interface) (azureCloudProvider, error) {
azureCloudProvider, ok := cloudProvider.(*azure.Cloud)
if !ok || azureCloudProvider == nil {
return nil, fmt.Errorf("Failed to get Azure Cloud Provider. GetCloudProvider returned %v instead", cloudProvider)
}
return azureCloudProvider, nil
}