/
volume.go
572 lines (495 loc) · 19.2 KB
/
volume.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
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
/*
Copyright 2018 The Rook Authors. 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 osd
import (
"bytes"
"encoding/json"
"fmt"
"io/ioutil"
"os"
"path"
"strconv"
"strings"
"syscall"
"github.com/pkg/errors"
"github.com/rook/rook/pkg/clusterd"
oposd "github.com/rook/rook/pkg/operator/ceph/cluster/osd"
"github.com/rook/rook/pkg/operator/ceph/cluster/osd/config"
cephver "github.com/rook/rook/pkg/operator/ceph/version"
"github.com/rook/rook/pkg/util/display"
"github.com/rook/rook/pkg/util/exec"
"github.com/rook/rook/pkg/util/sys"
)
// These are not constants because they are used by the tests
var (
cephConfigDir = "/var/lib/ceph"
cephLogDir = "/var/log/ceph"
lvmConfPath = "/etc/lvm/lvm.conf"
cvLogDir = ""
)
const (
osdsPerDeviceFlag = "--osds-per-device"
crushDeviceClassFlag = "--crush-device-class"
encryptedFlag = "--dmcrypt"
databaseSizeFlag = "--block-db-size"
dbDeviceFlag = "--db-devices"
cephVolumeCmd = "ceph-volume"
cephVolumeMinDBSize = 1024 // 1GB
)
func (a *OsdAgent) configureCVDevices(context *clusterd.Context, devices *DeviceOsdMapping) ([]oposd.OSDInfo, error) {
var osds []oposd.OSDInfo
var lv string
var lvBackedPV bool
var err error
if len(devices.Entries) == 0 {
logger.Infof("no new devices to configure. returning devices already configured with ceph-volume.")
osds, err = getCephVolumeOSDs(context, a.cluster.Name, a.cluster.FSID, lv, false, lvBackedPV)
if err != nil {
logger.Infof("failed to get devices already provisioned by ceph-volume. %v", err)
}
return osds, nil
}
err = createOSDBootstrapKeyring(context, a.cluster.Name, cephConfigDir)
if err != nil {
return nil, errors.Wrapf(err, "failed to generate osd keyring")
}
// Update LVM configuration file
if a.pvcBacked {
for _, device := range devices.Entries {
lvBackedPV, err = sys.IsLV(device.Config.Name, context.Executor)
if err != nil {
return nil, errors.Wrapf(err, "ailed to check device type")
}
break
}
}
if err := updateLVMConfig(context, a.pvcBacked, lvBackedPV); err != nil {
return nil, errors.Wrapf(err, "failed to update lvm configuration file") // fail return here as validation provided by ceph-volume
}
if a.pvcBacked {
if lv, err = a.initializeBlockPVC(context, devices, lvBackedPV); err != nil {
return nil, errors.Wrapf(err, "failed to initialize devices")
}
} else {
if err = a.initializeDevices(context, devices); err != nil {
return nil, errors.Wrapf(err, "failed to initialize devices")
}
}
osds, err = getCephVolumeOSDs(context, a.cluster.Name, a.cluster.FSID, lv, lvBackedPV, lvBackedPV) // skip release if PV is LV
return osds, err
}
func (a *OsdAgent) initializeBlockPVC(context *clusterd.Context, devices *DeviceOsdMapping, lvBackedPV bool) (string, error) {
baseCommand := "stdbuf"
var baseArgs []string
// Create a specific log directory so that each prepare command will have its own log
// Only do this if nothing is present so that we don't override existing logs
cvLogDir = path.Join(cephLogDir, a.nodeName)
err := os.MkdirAll(cvLogDir, 0755)
if err != nil {
logger.Errorf("failed to create ceph-volume log directory %q, continue with default %q. %v", cvLogDir, cephLogDir, err)
baseArgs = []string{"-oL", cephVolumeCmd}
} else {
baseArgs = []string{"-oL", cephVolumeCmd, "--log-path", cvLogDir}
}
baseArgs = append(baseArgs, []string{
"lvm",
"prepare",
}...)
var lvpath string
for name, device := range devices.Entries {
if device.LegacyPartitionsFound {
logger.Infof("skipping device %s configured with legacy rook osd", name)
continue
}
if device.Data == -1 {
logger.Infof("configuring new device %s", name)
var err error
var deviceArg string
if lvBackedPV {
// pass 'vg/lv' to ceph-volume
deviceArg, err = getLVNameFromDevicePath(context, device.Config.Name)
if err != nil {
return "", errors.Wrapf(err, "failed to get lv name from device path %q", device.Config.Name)
}
} else {
deviceArg = device.Config.Name
}
immediateExecuteArgs := append(baseArgs, []string{
"--data",
deviceArg,
}...)
// execute ceph-volume with the device
op, err := context.Executor.ExecuteCommandWithCombinedOutput(false, "", baseCommand, immediateExecuteArgs...)
if err != nil {
cvLogFilePath := path.Join(cvLogDir, "ceph-volume.log")
// Print c-v log before exiting
cvLog := readCVLogContent(cvLogFilePath)
if cvLog != "" {
logger.Errorf("%s", cvLog)
}
// Return failure
return "", errors.Wrapf(err, "failed ceph-volume") // fail return here as validation provided by ceph-volume
}
logger.Infof("%v", op)
if lvBackedPV {
lvpath = deviceArg
} else {
lvpath = getLVPath(op)
if lvpath == "" {
return "", errors.New("failed to get lvpath from ceph-volume lvm prepare output")
}
}
} else {
logger.Infof("skipping device %s with osd %d already configured", name, device.Data)
}
}
return lvpath, nil
}
func getLVPath(op string) string {
tmp := sys.Grep(op, "Volume group")
vgtmp := strings.Split(tmp, "\"")
tmp = sys.Grep(op, "Logical volume")
lvtmp := strings.Split(tmp, "\"")
if len(vgtmp) >= 2 && len(lvtmp) >= 2 {
if sys.Grep(vgtmp[1], "ceph") != "" && sys.Grep(lvtmp[1], "osd-block") != "" {
return fmt.Sprintf("/dev/%s/%s", vgtmp[1], lvtmp[1])
}
}
return ""
}
func getLVNameFromDevicePath(context *clusterd.Context, devicePath string) (string, error) {
devInfo, err := context.Executor.ExecuteCommandWithOutput(true, "",
"dmsetup", "info", "-c", "--noheadings", "-o", "name", devicePath)
if err != nil {
return "", errors.Wrapf(err, "failed dmsetup info. output: %q", devInfo)
}
out, err := context.Executor.ExecuteCommandWithOutput(true, "", "dmsetup", "splitname", devInfo, "--noheadings")
if err != nil {
return "", errors.Wrapf(err, "failed dmsetup splitname %q", devInfo)
}
split := strings.Split(out, ":")
if len(split) < 2 {
return "", errors.Wrapf(err, "dmsetup splitname returned unexpected result for %q. output: %q", devInfo, out)
}
return fmt.Sprintf("%s/%s", split[0], split[1]), nil
}
func updateLVMConfig(context *clusterd.Context, onPVC, lvBackedPV bool) error {
input, err := ioutil.ReadFile(lvmConfPath)
if err != nil {
return errors.Wrapf(err, "failed to read lvm config file %q", lvmConfPath)
}
output := bytes.Replace(input, []byte("udev_sync = 1"), []byte("udev_sync = 0"), 1)
output = bytes.Replace(output, []byte("allow_changes_with_duplicate_pvs = 0"), []byte("allow_changes_with_duplicate_pvs = 1"), 1)
output = bytes.Replace(output, []byte("udev_rules = 1"), []byte("udev_rules = 0"), 1)
output = bytes.Replace(output, []byte("use_lvmetad = 1"), []byte("use_lvmetad = 0"), 1)
output = bytes.Replace(output, []byte("obtain_device_list_from_udev = 1"), []byte("obtain_device_list_from_udev = 0"), 1)
// When running on PVC
if onPVC {
output = bytes.Replace(output, []byte(`scan = [ "/dev" ]`), []byte(`scan = [ "/dev", "/mnt" ]`), 1)
// Only filter blocks in /mnt, when running on PVC we copy the PVC claim path to /mnt
// And reject everything else
// We have 2 different regex depending on the version of LVM present in the container...
// Since https://github.com/lvmteam/lvm2/commit/08396b4bce45fb8311979250623f04ec0ddb628c#diff-13c602a6258e57ce666a240e67c44f38
// the content changed, so depending which version is installled one of the two replace will work
if lvBackedPV {
// ceph-volume calls lvs to locate given "vg/lv", so allow "/dev" here. However, ignore loopback devices
output = bytes.Replace(output, []byte(`# filter = [ "a|.*/|" ]`), []byte(`filter = [ "a|^/mnt/.*|", "r|^/dev/loop.*|", "a|^/dev/.*|", "r|.*|" ]`), 1)
output = bytes.Replace(output, []byte(`# filter = [ "a|.*|" ]`), []byte(`filter = [ "a|^/mnt/.*|", "r|^/dev/loop.*|", "a|^/dev/.*|", "r|.*|" ]`), 1)
} else {
output = bytes.Replace(output, []byte(`# filter = [ "a|.*/|" ]`), []byte(`filter = [ "a|^/mnt/.*|", "r|.*|" ]`), 1)
output = bytes.Replace(output, []byte(`# filter = [ "a|.*|" ]`), []byte(`filter = [ "a|^/mnt/.*|", "r|.*|" ]`), 1)
}
}
if err = ioutil.WriteFile(lvmConfPath, output, 0644); err != nil {
return errors.Wrapf(err, "failed to update lvm config file %q", lvmConfPath)
}
logger.Infof("Successfully updated lvm config file %q", lvmConfPath)
return nil
}
func (a *OsdAgent) initializeDevices(context *clusterd.Context, devices *DeviceOsdMapping) error {
storeFlag := "--bluestore"
if a.storeConfig.StoreType == config.Filestore {
storeFlag = "--filestore"
}
// Use stdbuf to capture the python output buffer such that we can write to the pod log as the logging happens
// instead of using the default buffering that will log everything after ceph-volume exits
baseCommand := "stdbuf"
baseArgs := []string{"-oL", cephVolumeCmd, "lvm", "batch", "--prepare", storeFlag, "--yes"}
if a.storeConfig.EncryptedDevice {
baseArgs = append(baseArgs, encryptedFlag)
}
osdsPerDeviceCount := sanitizeOSDsPerDevice(a.storeConfig.OSDsPerDevice)
batchArgs := baseArgs
metadataDevices := make(map[string]map[string]string)
for name, device := range devices.Entries {
if device.LegacyPartitionsFound {
logger.Infof("skipping device %s configured with legacy rook osd", name)
continue
}
if device.Data == -1 {
logger.Infof("configuring new device %s", name)
deviceArg := path.Join("/dev", name)
// ceph-volume prefers to use /dev/mapper/<name> if the device has this kind of alias
for _, devlink := range device.PersistentDevicePaths {
if strings.HasPrefix(devlink, "/dev/mapper") {
deviceArg = devlink
}
}
deviceOSDCount := osdsPerDeviceCount
if device.Config.OSDsPerDevice > 1 {
deviceOSDCount = sanitizeOSDsPerDevice(device.Config.OSDsPerDevice)
}
if a.metadataDevice != "" || device.Config.MetadataDevice != "" {
// When mixed hdd/ssd devices are given, ceph-volume configures db lv on the ssd.
// the device will be configured as a batch at the end of the method
md := a.metadataDevice
if device.Config.MetadataDevice != "" {
md = device.Config.MetadataDevice
}
logger.Infof("using %s as metadataDevice for device %s and let ceph-volume lvm batch decide how to create volumes", md, deviceArg)
if _, ok := metadataDevices[md]; ok {
// Fail when two devices using the same metadata device have different values for osdsPerDevice
metadataDevices[md]["devices"] += " " + deviceArg
if deviceOSDCount != metadataDevices[md]["osdsperdevice"] {
return errors.Errorf("metadataDevice (%s) has more than 1 osdsPerDevice value set: %s != %s", md, deviceOSDCount, metadataDevices[md]["osdsperdevice"])
}
} else {
metadataDevices[md] = make(map[string]string)
metadataDevices[md]["osdsperdevice"] = deviceOSDCount
if device.Config.DeviceClass != "" {
metadataDevices[md]["deviceclass"] = device.Config.DeviceClass
}
metadataDevices[md]["devices"] = deviceArg
}
deviceDBSizeMB := getDatabaseSize(a.storeConfig.DatabaseSizeMB, device.Config.DatabaseSizeMB)
if storeFlag == "--bluestore" && deviceDBSizeMB > 0 {
if deviceDBSizeMB < cephVolumeMinDBSize {
// ceph-volume will convert this value to ?G. It needs to be > 1G to invoke lvcreate.
logger.Infof("skipping databaseSizeMB setting (%d). For it should be larger than %dMB.", deviceDBSizeMB, cephVolumeMinDBSize)
} else {
dbSizeString := strconv.FormatUint(display.MbTob(uint64(deviceDBSizeMB)), 10)
if _, ok := metadataDevices[md]["databasesizemb"]; ok {
if metadataDevices[md]["databasesizemb"] != dbSizeString {
return errors.Errorf("metadataDevice (%s) has more than 1 databaseSizeMB value set: %s != %s", md, metadataDevices[md]["databasesizemb"], dbSizeString)
}
} else {
metadataDevices[md]["databasesizemb"] = dbSizeString
}
}
}
} else {
immediateExecuteArgs := append(baseArgs, []string{
osdsPerDeviceFlag,
deviceOSDCount,
deviceArg,
}...)
if device.Config.DeviceClass != "" {
immediateExecuteArgs = append(immediateExecuteArgs, []string{
crushDeviceClassFlag,
device.Config.DeviceClass,
}...)
}
// Reporting
immediateReportArgs := append(immediateExecuteArgs, []string{
"--report",
}...)
logger.Infof("Base command - %+v", baseCommand)
logger.Infof("immediateReportArgs - %+v", baseCommand)
logger.Infof("immediateExecuteArgs - %+v", immediateExecuteArgs)
if err := context.Executor.ExecuteCommand(false, "", baseCommand, immediateReportArgs...); err != nil {
return errors.Wrapf(err, "failed ceph-volume report") // fail return here as validation provided by ceph-volume
}
// execute ceph-volume immediately with the device-specific setting instead of batching up multiple devices together
if err := context.Executor.ExecuteCommand(false, "", baseCommand, immediateExecuteArgs...); err != nil {
return errors.Wrapf(err, "failed ceph-volume")
}
}
} else {
logger.Infof("skipping device %s with osd %d already configured", name, device.Data)
}
}
for md, conf := range metadataDevices {
mdArgs := batchArgs
if _, ok := conf["osdsperdevice"]; ok {
mdArgs = append(mdArgs, []string{
osdsPerDeviceFlag,
conf["osdsperdevice"],
}...)
}
if _, ok := conf["deviceclass"]; ok {
mdArgs = append(mdArgs, []string{
crushDeviceClassFlag,
conf["deviceclass"],
}...)
}
if _, ok := conf["databasesizemb"]; ok {
mdArgs = append(mdArgs, []string{
databaseSizeFlag,
conf["databasesizemb"],
}...)
}
mdArgs = append(mdArgs, strings.Split(conf["devices"], " ")...)
if a.cluster.CephVersion.IsAtLeast(cephver.CephVersion{Major: 14, Minor: 2, Extra: 1}) {
mdArgs = append(mdArgs, []string{
dbDeviceFlag,
path.Join("/dev", md),
}...)
} else {
mdArgs = append(mdArgs, path.Join("/dev", md))
}
// Reporting
reportArgs := append(mdArgs, []string{
"--report",
}...)
if err := context.Executor.ExecuteCommand(false, "", baseCommand, reportArgs...); err != nil {
return errors.Wrapf(err, "failed ceph-volume report") // fail return here as validation provided by ceph-volume
}
reportArgs = append(reportArgs, []string{
"--format",
"json",
}...)
cvOut, err := context.Executor.ExecuteCommandWithCombinedOutput(false, "", baseCommand, reportArgs...)
if err != nil {
return errors.Wrapf(err, "failed ceph-volume json report") // fail return here as validation provided by ceph-volume
}
logger.Debugf("ceph-volume report: %+v", cvOut)
var cvReport cephVolReport
if err = json.Unmarshal([]byte(cvOut), &cvReport); err != nil {
return errors.Wrapf(err, "failed to unmarshal ceph-volume report json")
}
if path.Join("/dev", md) != cvReport.Vg.Devices {
return errors.Errorf("ceph-volume did not use the expected metadataDevice [%s]", md)
}
// execute ceph-volume batching up multiple devices
if err := context.Executor.ExecuteCommand(false, "", baseCommand, mdArgs...); err != nil {
return errors.Wrapf(err, "failed ceph-volume") // fail return here as validation provided by ceph-volume
}
}
return nil
}
func getDatabaseSize(globalSize int, deviceSize int) int {
if deviceSize > 0 {
globalSize = deviceSize
}
return globalSize
}
func sanitizeOSDsPerDevice(count int) string {
if count < 1 {
count = 1
}
return strconv.Itoa(count)
}
func getCephVolumeSupported(context *clusterd.Context) (bool, error) {
_, err := context.Executor.ExecuteCommandWithCombinedOutput(false, "", cephVolumeCmd, "lvm", "batch", "--prepare")
if err != nil {
if cmdErr, ok := err.(*exec.CommandError); ok {
exitStatus := cmdErr.ExitStatus()
if exitStatus == int(syscall.ENOENT) || exitStatus == int(syscall.EPERM) {
logger.Infof("supported version of ceph-volume not available")
return false, nil
}
return false, errors.Errorf("unknown return code from ceph-volume when checking for compatibility: %d", exitStatus)
}
return false, errors.Wrapf(err, "unknown ceph-volume failure")
}
return true, nil
}
func getCephVolumeOSDs(context *clusterd.Context, clusterName string, cephfsid string, lv string, skipLVRelease, lvBackedPV bool) ([]oposd.OSDInfo, error) {
result, err := context.Executor.ExecuteCommandWithCombinedOutput(false, "", cephVolumeCmd, "lvm", "list", lv, "--format", "json")
if err != nil {
return nil, errors.Wrapf(err, "failed to retrieve ceph-volume results")
}
logger.Debug(result)
var cephVolumeResult map[string][]osdInfo
err = json.Unmarshal([]byte(result), &cephVolumeResult)
if err != nil {
return nil, errors.Wrapf(err, "failed to retrieve ceph-volume results")
}
var osds []oposd.OSDInfo
for name, osdInfo := range cephVolumeResult {
id, err := strconv.Atoi(name)
if err != nil {
logger.Errorf("bad osd returned from ceph-volume: %q", name)
continue
}
var osdFSID string
isFilestore := false
for _, osd := range osdInfo {
if osd.Tags.ClusterFSID != cephfsid {
logger.Infof("skipping osd%d: %q running on a different ceph cluster %q", id, osd.Tags.OSDFSID, osd.Tags.ClusterFSID)
continue
}
osdFSID = osd.Tags.OSDFSID
if osd.Type == "journal" {
isFilestore = true
}
}
if len(osdFSID) == 0 {
logger.Infof("Skipping osd%d as no instances are running on ceph cluster %q", id, cephfsid)
continue
}
logger.Infof("osdInfo has %d elements. %+v", len(osdInfo), osdInfo)
configDir := "/var/lib/rook/osd" + name
osd := oposd.OSDInfo{
ID: id,
DataPath: configDir,
Config: fmt.Sprintf("%s/%s.config", configDir, clusterName),
KeyringPath: path.Join(configDir, "keyring"),
Cluster: "ceph",
UUID: osdFSID,
CephVolumeInitiated: true,
IsFileStore: isFilestore,
LVPath: lv,
SkipLVRelease: skipLVRelease,
LVBackedPV: lvBackedPV,
}
osds = append(osds, osd)
}
logger.Infof("%d ceph-volume osd devices configured on this node", len(osds))
return osds, nil
}
func readCVLogContent(cvLogFilePath string) string {
// Open c-v log file
cvLogFile, err := os.Open(cvLogFilePath)
if err != nil {
logger.Errorf("failed to open ceph-volume log file %q. %v", cvLogFilePath, err)
return ""
}
defer cvLogFile.Close()
// Read c-v log file
b, err := ioutil.ReadAll(cvLogFile)
if err != nil {
logger.Errorf("failed to read ceph-volume log file %q. %v", cvLogFilePath, err)
return ""
}
return string(b)
}
type osdInfo struct {
Name string `json:"name"`
Path string `json:"path"`
Tags osdTags `json:"tags"`
// "data" or "journal" for filestore and "block" for bluestore
Type string `json:"type"`
}
type osdTags struct {
OSDFSID string `json:"ceph.osd_fsid"`
Encrypted string `json:"ceph.encrypted"`
ClusterFSID string `json:"ceph.cluster_fsid"`
}
type cephVolReport struct {
Changed bool `json:"changed"`
Vg cephVolVg `json:"vg"`
}
type cephVolVg struct {
Devices string `json:"devices"`
}