forked from kubernetes/kubernetes
-
Notifications
You must be signed in to change notification settings - Fork 1
/
csi_volumes.go
419 lines (371 loc) · 12.6 KB
/
csi_volumes.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
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
/*
Copyright 2018 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 storage
import (
"fmt"
"math/rand"
"time"
"k8s.io/api/core/v1"
storagev1 "k8s.io/api/storage/v1"
apiextensionsclient "k8s.io/apiextensions-apiserver/pkg/client/clientset/clientset"
"k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
clientset "k8s.io/client-go/kubernetes"
csiv1alpha1 "k8s.io/csi-api/pkg/apis/csi/v1alpha1"
csiclient "k8s.io/csi-api/pkg/client/clientset/versioned"
"k8s.io/kubernetes/test/e2e/framework"
"k8s.io/kubernetes/test/e2e/storage/utils"
imageutils "k8s.io/kubernetes/test/utils/image"
"crypto/sha256"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
)
const (
csiExternalProvisionerClusterRoleName string = "system:csi-external-provisioner"
csiExternalAttacherClusterRoleName string = "system:csi-external-attacher"
csiDriverRegistrarClusterRoleName string = "csi-driver-registrar"
)
type csiTestDriver interface {
createCSIDriver()
cleanupCSIDriver()
createStorageClassTest(node v1.Node) storageClassTest
}
var csiTestDrivers = map[string]func(f *framework.Framework, config framework.VolumeTestConfig) csiTestDriver{
"hostPath": initCSIHostpath,
"gcePD": initCSIgcePD,
}
var _ = utils.SIGDescribe("[Serial] CSI Volumes", func() {
f := framework.NewDefaultFramework("csi-mock-plugin")
var (
cs clientset.Interface
crdclient apiextensionsclient.Interface
csics csiclient.Interface
ns *v1.Namespace
node v1.Node
config framework.VolumeTestConfig
)
BeforeEach(func() {
cs = f.ClientSet
crdclient = f.APIExtensionsClientSet
csics = f.CSIClientSet
ns = f.Namespace
nodes := framework.GetReadySchedulableNodesOrDie(f.ClientSet)
node = nodes.Items[rand.Intn(len(nodes.Items))]
config = framework.VolumeTestConfig{
Namespace: ns.Name,
Prefix: "csi",
ClientNodeName: node.Name,
ServerNodeName: node.Name,
WaitForCompletion: true,
}
csiDriverRegistrarClusterRole(config)
createCSICRDs(crdclient)
})
AfterEach(func() {
deleteCSICRDs(crdclient)
})
for driverName, initCSIDriver := range csiTestDrivers {
curDriverName := driverName
curInitCSIDriver := initCSIDriver
Context(fmt.Sprintf("CSI plugin test using CSI driver: %s [Serial]", curDriverName), func() {
var (
driver csiTestDriver
)
BeforeEach(func() {
driver = curInitCSIDriver(f, config)
driver.createCSIDriver()
})
AfterEach(func() {
driver.cleanupCSIDriver()
})
It("should provision storage", func() {
t := driver.createStorageClassTest(node)
claim := newClaim(t, ns.GetName(), "")
class := newStorageClass(t, ns.GetName(), "")
claim.Spec.StorageClassName = &class.ObjectMeta.Name
testDynamicProvisioning(t, cs, claim, class)
})
})
}
// Use [Serial], because there can be only one CSIDriver for csi-hostpath driver.
Context("CSI attach test using HostPath driver [Serial][Feature:CSISkipAttach]", func() {
var (
driver csiTestDriver
)
BeforeEach(func() {
driver = initCSIHostpath(f, config)
driver.createCSIDriver()
})
AfterEach(func() {
driver.cleanupCSIDriver()
})
tests := []struct {
name string
driverAttachable bool
driverExists bool
expectVolumeAttachment bool
}{
{
name: "non-attachable volume does not need VolumeAttachment",
driverAttachable: false,
driverExists: true,
expectVolumeAttachment: false,
},
{
name: "attachable volume needs VolumeAttachment",
driverAttachable: true,
driverExists: true,
expectVolumeAttachment: true,
},
{
name: "volume with no CSI driver needs VolumeAttachment",
driverExists: false,
expectVolumeAttachment: true,
},
}
for _, t := range tests {
test := t
It(test.name, func() {
if test.driverExists {
driver := createCSIDriver(csics, test.driverAttachable)
if driver != nil {
defer csics.CsiV1alpha1().CSIDrivers().Delete(driver.Name, nil)
}
}
By("Creating pod")
t := driver.createStorageClassTest(node)
class, claim, pod := startPausePod(cs, t, ns.Name)
if class != nil {
defer cs.StorageV1().StorageClasses().Delete(class.Name, nil)
}
if claim != nil {
defer cs.CoreV1().PersistentVolumeClaims(ns.Name).Delete(claim.Name, nil)
}
if pod != nil {
// Fully delete (=unmount) the pod before deleting CSI driver
defer framework.DeletePodWithWait(f, cs, pod)
}
if pod == nil {
return
}
err := framework.WaitForPodNameRunningInNamespace(cs, pod.Name, pod.Namespace)
framework.ExpectNoError(err, "Failed to start pod: %v", err)
By("Checking if VolumeAttachment was created for the pod")
// Check that VolumeAttachment does not exist
handle := getVolumeHandle(cs, claim)
attachmentHash := sha256.Sum256([]byte(fmt.Sprintf("%s%s%s", handle, t.provisioner, node.Name)))
attachmentName := fmt.Sprintf("csi-%x", attachmentHash)
_, err = cs.StorageV1beta1().VolumeAttachments().Get(attachmentName, metav1.GetOptions{})
if err != nil {
if errors.IsNotFound(err) {
if test.expectVolumeAttachment {
framework.ExpectNoError(err, "Expected VolumeAttachment but none was found")
}
} else {
framework.ExpectNoError(err, "Failed to find VolumeAttachment")
}
}
if !test.expectVolumeAttachment {
Expect(err).To(HaveOccurred(), "Unexpected VolumeAttachment found")
}
})
}
})
})
func createCSIDriver(csics csiclient.Interface, attachable bool) *csiv1alpha1.CSIDriver {
By("Creating CSIDriver instance")
driver := &csiv1alpha1.CSIDriver{
ObjectMeta: metav1.ObjectMeta{
Name: "csi-hostpath",
},
Spec: csiv1alpha1.CSIDriverSpec{
AttachRequired: &attachable,
},
}
driver, err := csics.CsiV1alpha1().CSIDrivers().Create(driver)
framework.ExpectNoError(err, "Failed to create CSIDriver: %v", err)
return driver
}
func getVolumeHandle(cs clientset.Interface, claim *v1.PersistentVolumeClaim) string {
// re-get the claim to the the latest state with bound volume
claim, err := cs.CoreV1().PersistentVolumeClaims(claim.Namespace).Get(claim.Name, metav1.GetOptions{})
if err != nil {
framework.ExpectNoError(err, "Cannot get PVC")
return ""
}
pvName := claim.Spec.VolumeName
pv, err := cs.CoreV1().PersistentVolumes().Get(pvName, metav1.GetOptions{})
if err != nil {
framework.ExpectNoError(err, "Cannot get PV")
return ""
}
if pv.Spec.CSI == nil {
Expect(pv.Spec.CSI).NotTo(BeNil())
return ""
}
return pv.Spec.CSI.VolumeHandle
}
func startPausePod(cs clientset.Interface, t storageClassTest, ns string) (*storagev1.StorageClass, *v1.PersistentVolumeClaim, *v1.Pod) {
class := newStorageClass(t, ns, "")
class, err := cs.StorageV1().StorageClasses().Create(class)
framework.ExpectNoError(err, "Failed to create class : %v", err)
claim := newClaim(t, ns, "")
claim.Spec.StorageClassName = &class.Name
claim, err = cs.CoreV1().PersistentVolumeClaims(ns).Create(claim)
framework.ExpectNoError(err, "Failed to create claim: %v", err)
pod := &v1.Pod{
ObjectMeta: metav1.ObjectMeta{
GenerateName: "pvc-volume-tester-",
},
Spec: v1.PodSpec{
Containers: []v1.Container{
{
Name: "volume-tester",
Image: imageutils.GetE2EImage(imageutils.Pause),
VolumeMounts: []v1.VolumeMount{
{
Name: "my-volume",
MountPath: "/mnt/test",
},
},
},
},
RestartPolicy: v1.RestartPolicyNever,
Volumes: []v1.Volume{
{
Name: "my-volume",
VolumeSource: v1.VolumeSource{
PersistentVolumeClaim: &v1.PersistentVolumeClaimVolumeSource{
ClaimName: claim.Name,
ReadOnly: false,
},
},
},
},
},
}
if len(t.nodeName) != 0 {
pod.Spec.NodeName = t.nodeName
}
pod, err = cs.CoreV1().Pods(ns).Create(pod)
framework.ExpectNoError(err, "Failed to create pod: %v", err)
return class, claim, pod
}
type hostpathCSIDriver struct {
combinedClusterRoleNames []string
serviceAccount *v1.ServiceAccount
f *framework.Framework
config framework.VolumeTestConfig
}
func initCSIHostpath(f *framework.Framework, config framework.VolumeTestConfig) csiTestDriver {
return &hostpathCSIDriver{
combinedClusterRoleNames: []string{
csiExternalAttacherClusterRoleName,
csiExternalProvisionerClusterRoleName,
csiDriverRegistrarClusterRoleName,
},
f: f,
config: config,
}
}
func (h *hostpathCSIDriver) createStorageClassTest(node v1.Node) storageClassTest {
return storageClassTest{
name: "csi-hostpath",
provisioner: "csi-hostpath",
parameters: map[string]string{},
claimSize: "1Gi",
expectedSize: "1Gi",
nodeName: node.Name,
}
}
func (h *hostpathCSIDriver) createCSIDriver() {
By("deploying csi hostpath driver")
f := h.f
cs := f.ClientSet
config := h.config
h.serviceAccount = csiServiceAccount(cs, config, "hostpath", false)
csiClusterRoleBindings(cs, config, false, h.serviceAccount, h.combinedClusterRoleNames)
csiHostPathPod(cs, config, false, f, h.serviceAccount)
}
func (h *hostpathCSIDriver) cleanupCSIDriver() {
By("uninstalling csi hostpath driver")
f := h.f
cs := f.ClientSet
config := h.config
csiHostPathPod(cs, config, true, f, h.serviceAccount)
csiClusterRoleBindings(cs, config, true, h.serviceAccount, h.combinedClusterRoleNames)
csiServiceAccount(cs, config, "hostpath", true)
}
type gcePDCSIDriver struct {
controllerClusterRoles []string
nodeClusterRoles []string
controllerServiceAccount *v1.ServiceAccount
nodeServiceAccount *v1.ServiceAccount
f *framework.Framework
config framework.VolumeTestConfig
}
func initCSIgcePD(f *framework.Framework, config framework.VolumeTestConfig) csiTestDriver {
cs := f.ClientSet
framework.SkipUnlessProviderIs("gce", "gke")
framework.SkipIfMultizone(cs)
// TODO(#62561): Use credentials through external pod identity when that goes GA instead of downloading keys.
createGCESecrets(cs, config)
framework.SkipUnlessSecretExistsAfterWait(cs, "cloud-sa", config.Namespace, 3*time.Minute)
return &gcePDCSIDriver{
nodeClusterRoles: []string{
csiDriverRegistrarClusterRoleName,
},
controllerClusterRoles: []string{
csiExternalAttacherClusterRoleName,
csiExternalProvisionerClusterRoleName,
},
f: f,
config: config,
}
}
func (g *gcePDCSIDriver) createStorageClassTest(node v1.Node) storageClassTest {
return storageClassTest{
name: "com.google.csi.gcepd",
provisioner: "com.google.csi.gcepd",
parameters: map[string]string{"type": "pd-standard"},
claimSize: "5Gi",
expectedSize: "5Gi",
nodeName: node.Name,
}
}
func (g *gcePDCSIDriver) createCSIDriver() {
By("deploying gce-pd driver")
f := g.f
cs := f.ClientSet
config := g.config
g.controllerServiceAccount = csiServiceAccount(cs, config, "gce-controller", false /* teardown */)
g.nodeServiceAccount = csiServiceAccount(cs, config, "gce-node", false /* teardown */)
csiClusterRoleBindings(cs, config, false /* teardown */, g.controllerServiceAccount, g.controllerClusterRoles)
csiClusterRoleBindings(cs, config, false /* teardown */, g.nodeServiceAccount, g.nodeClusterRoles)
utils.PrivilegedTestPSPClusterRoleBinding(cs, config.Namespace,
false /* teardown */, []string{g.controllerServiceAccount.Name, g.nodeServiceAccount.Name})
deployGCEPDCSIDriver(cs, config, false /* teardown */, f, g.nodeServiceAccount, g.controllerServiceAccount)
}
func (g *gcePDCSIDriver) cleanupCSIDriver() {
By("uninstalling gce-pd driver")
f := g.f
cs := f.ClientSet
config := g.config
deployGCEPDCSIDriver(cs, config, true /* teardown */, f, g.nodeServiceAccount, g.controllerServiceAccount)
csiClusterRoleBindings(cs, config, true /* teardown */, g.controllerServiceAccount, g.controllerClusterRoles)
csiClusterRoleBindings(cs, config, true /* teardown */, g.nodeServiceAccount, g.nodeClusterRoles)
utils.PrivilegedTestPSPClusterRoleBinding(cs, config.Namespace,
true /* teardown */, []string{g.controllerServiceAccount.Name, g.nodeServiceAccount.Name})
csiServiceAccount(cs, config, "gce-controller", true /* teardown */)
csiServiceAccount(cs, config, "gce-node", true /* teardown */)
}