/
rgw.go
353 lines (307 loc) · 13.6 KB
/
rgw.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
/*
Copyright 2016 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 object for the Ceph object store.
package object
import (
"fmt"
"strings"
"github.com/pkg/errors"
cephv1 "github.com/rook/rook/pkg/apis/ceph.rook.io/v1"
"github.com/rook/rook/pkg/clusterd"
"github.com/rook/rook/pkg/daemon/ceph/client"
cephconfig "github.com/rook/rook/pkg/daemon/ceph/config"
"github.com/rook/rook/pkg/operator/ceph/cluster/mon"
"github.com/rook/rook/pkg/operator/ceph/config"
"github.com/rook/rook/pkg/operator/ceph/pool"
cephver "github.com/rook/rook/pkg/operator/ceph/version"
"github.com/rook/rook/pkg/operator/k8sutil"
kerrors "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)
type clusterConfig struct {
clusterInfo *cephconfig.ClusterInfo
context *clusterd.Context
store cephv1.CephObjectStore
rookVersion string
clusterSpec *cephv1.ClusterSpec
ownerRef metav1.OwnerReference
DataPathMap *config.DataPathMap
isUpgrade bool
skipUpgradeChecks bool
}
type rgwConfig struct {
ResourceName string
DaemonID string
}
const (
oldRgwKeyName = "client.radosgw.gateway"
)
var updateDeploymentAndWait = mon.UpdateCephDeploymentAndWait
func (c *clusterConfig) createOrUpdate() error {
// validate the object store settings
if err := validateStore(c.context, c.store); err != nil {
return errors.Wrapf(err, "invalid object store %s arguments", c.store.Name)
}
logger.Infof("creating object store %s in namespace %s", c.store.Name, c.store.Namespace)
// start the service
serviceIP, err := c.startService()
if err != nil {
return errors.Wrapf(err, "failed to start rgw service")
}
// create the ceph artifacts for the object store
objContext := NewContext(c.context, c.store.Name, c.store.Namespace)
err = createObjectStore(objContext, *c.store.Spec.MetadataPool.ToModel(""), *c.store.Spec.DataPool.ToModel(""), serviceIP, c.store.Spec.Gateway.Port)
if err != nil {
return errors.Wrapf(err, "failed to create pools")
}
if err := c.startRGWPods(); err != nil {
return errors.Wrapf(err, "failed to start pods")
}
logger.Infof("created object store %s", c.store.Name)
return nil
}
func (c *clusterConfig) startRGWPods() error {
// backward compatibility, triggered during updates
if c.store.Spec.Gateway.AllNodes {
// log we don't support that anymore
logger.Warningf(
"setting 'AllNodes' to %t is not supported anymore, please use 'instances' instead, removing old DaemonSets if any and replace them with Deployments in object store %s",
c.store.Spec.Gateway.AllNodes, c.store.Name)
}
if c.store.Spec.Gateway.Instances < 1 {
// Set the minimum of at least one instance
logger.Warningf("spec.gateway.instances must be set to at least 1")
c.store.Spec.Gateway.Instances = 1
}
// start a new deployment and scale up
desiredRgwInstances := int(c.store.Spec.Gateway.Instances)
for i := 0; i < desiredRgwInstances; i++ {
var err error
daemonLetterID := k8sutil.IndexToName(i)
// Each rgw is id'ed by <store_name>-<letterID>
daemonName := fmt.Sprintf("%s-%s", c.store.Name, daemonLetterID)
// resource name is rook-ceph-rgw-<store_name>-<daemon_name>
resourceName := fmt.Sprintf("%s-%s-%s", AppName, c.store.Name, daemonLetterID)
rgwConfig := &rgwConfig{
ResourceName: resourceName,
DaemonID: daemonName,
}
// Generate the keyring after starting the replication controller so that the keyring may use
// the controller as its owner reference; the keyring is deleted with the controller
keyring, err := c.generateKeyring(rgwConfig)
if err != nil {
return errors.Wrapf(err, "failed to create rgw keyring")
}
// Check for existing deployment and set the daemon config flags
_, err = c.context.Clientset.AppsV1().Deployments(c.store.Namespace).Get(rgwConfig.ResourceName, metav1.GetOptions{})
// We don't need to handle any error here
if err != nil {
// Apply the flag only when the deployment is not found
if kerrors.IsNotFound(err) {
logger.Info("setting rgw config flags")
err = c.setDefaultFlagsMonConfigStore(rgwConfig.ResourceName)
if err != nil {
return errors.Wrapf(err, "failed to set default rgw config options")
}
}
}
// Create deployment
deployment := c.createDeployment(rgwConfig)
logger.Infof("object store %s deployment %s started", c.store.Name, deployment.Name)
createdDeployment, createErr := c.context.Clientset.AppsV1().Deployments(c.store.Namespace).Create(deployment)
if createErr != nil {
if !kerrors.IsAlreadyExists(createErr) {
return errors.Wrapf(createErr, "failed to create rgw deployment")
}
logger.Infof("object store %s deployment %s already exists. updating if needed", c.store.Name, deployment.Name)
createdDeployment, err = c.context.Clientset.AppsV1().Deployments(c.store.Namespace).Get(deployment.Name, metav1.GetOptions{})
if err != nil {
return errors.Wrapf(err, "failed to get existing rgw deployment %s for update", deployment.Name)
}
}
resourceControllerOwnerRef := &metav1.OwnerReference{
UID: createdDeployment.UID,
APIVersion: "v1",
Kind: "deployment",
Name: rgwConfig.ResourceName,
}
err = c.associateKeyring(keyring, resourceControllerOwnerRef)
if err != nil {
logger.Warningf("failed to associate keyring with rgw deployment %q. %v", createdDeployment.Name, err)
}
// Generate the mime.types file after the rep. controller as well for the same reason as keyring
if createErr != nil && kerrors.IsAlreadyExists(createErr) {
// Always invoke ceph version before an upgrade so we are sure to be up-to-date
daemon := string(config.RgwType)
var cephVersionToUse cephver.CephVersion
currentCephVersion, err := client.LeastUptodateDaemonVersion(c.context, c.clusterInfo.Name, daemon)
if err != nil {
logger.Warningf("failed to retrieve current ceph %s version. %v", daemon, err)
logger.Debug("could not detect ceph version during update, this is likely an initial bootstrap, proceeding with c.clusterInfo.CephVersion")
cephVersionToUse = c.clusterInfo.CephVersion
} else {
logger.Debugf("current cluster version for rgws before upgrading is: %+v", currentCephVersion)
cephVersionToUse = currentCephVersion
}
if err := updateDeploymentAndWait(c.context, deployment, c.store.Namespace, daemon, daemonLetterID, cephVersionToUse, c.isUpgrade, c.skipUpgradeChecks, false); err != nil {
return errors.Wrapf(err, "failed to update object store %s deployment %s", c.store.Name, deployment.Name)
}
}
if err := c.generateMimeTypes(resourceControllerOwnerRef); err != nil {
return errors.Wrapf(err, "failed to generate the rgw mime.types config")
}
}
// scale down scenario
deps, err := k8sutil.GetDeployments(c.context.Clientset, c.store.Namespace, c.storeLabelSelector())
if err != nil {
logger.Warning("could not get deployments for object store %q (matching label selector %q). %v", c.store.Name, c.storeLabelSelector(), err)
}
currentRgwInstances := int(len(deps.Items))
if currentRgwInstances > desiredRgwInstances {
logger.Infof("found more rgw deployments %d than desired %d in object store %q, scaling down", currentRgwInstances, c.store.Spec.Gateway.Instances, c.store.Name)
diffCount := currentRgwInstances - desiredRgwInstances
for i := 0; i < diffCount; {
depIDToRemove := currentRgwInstances - 1
depNameToRemove := fmt.Sprintf("%s-%s-%s", AppName, c.store.Name, k8sutil.IndexToName(depIDToRemove))
if err := k8sutil.DeleteDeployment(c.context.Clientset, c.store.Namespace, depNameToRemove); err != nil {
logger.Warning("error during deletion of deployment %q resource. %v", depNameToRemove, err)
}
currentRgwInstances = currentRgwInstances - 1
i++
// Delete the auth key
err = client.AuthDelete(c.context, c.store.Namespace, generateCephXUser(depNameToRemove))
if err != nil {
logger.Infof("failed to delete rgw key %q. %v", depNameToRemove, err)
}
}
// verify scale down was successful
deps, err = k8sutil.GetDeployments(c.context.Clientset, c.store.Namespace, c.storeLabelSelector())
if err != nil {
logger.Warning("could not get deployments for object store %q (matching label selector %q). %v", c.store.Name, c.storeLabelSelector(), err)
}
currentRgwInstances = len(deps.Items)
if currentRgwInstances == desiredRgwInstances {
logger.Infof("successfully scaled down rgw deployments to %d in object store %q", desiredRgwInstances, c.store.Name)
}
}
c.deleteLegacyDaemons()
return nil
}
// deleteLegacyDaemons removes legacy rgw components that might have existed in Rook v1.0
func (c *clusterConfig) deleteLegacyDaemons() {
// Make a best effort to delete the rgw pods daemonsets
daemons, err := k8sutil.GetDaemonsets(c.context.Clientset, c.store.Namespace, c.storeLabelSelector())
if err != nil {
logger.Warningf("could not get deployments for object store %q (matching label selector %q). %v", c.store.Name, c.storeLabelSelector(), err)
}
daemonsetNum := len(daemons.Items)
if daemonsetNum > 0 {
for _, d := range daemons.Items {
// Delete any existing daemonset
if err := k8sutil.DeleteDaemonset(c.context.Clientset, c.store.Namespace, d.Name); err != nil {
logger.Errorf("error during deletion of daemonset %q resource. %v", d.Name, err)
}
}
// Delete legacy rgw key
err = client.AuthDelete(c.context, c.store.Namespace, oldRgwKeyName)
if err != nil {
logger.Infof("failed to delete legacy rgw key %q. %v", oldRgwKeyName, err)
}
}
// legacy deployment detection
logger.Debugf("looking for legacy deployment in object store %q", c.store.Name)
deps, err := k8sutil.GetDeployments(c.context.Clientset, c.store.Namespace, c.storeLabelSelector())
if err != nil {
logger.Warning("could not get deployments for object store %q (matching label selector %q). %v", c.store.Name, c.storeLabelSelector(), err)
}
for _, d := range deps.Items {
if d.Name == c.instanceName() {
logger.Infof("legacy deployment in object store %q found %q", c.store.Name, d.Name)
if err := k8sutil.DeleteDeployment(c.context.Clientset, c.store.Namespace, d.Name); err != nil {
logger.Warning("error during deletion of deployment %q resource. %v", d.Name, err)
}
// Delete legacy rgw key
err = client.AuthDelete(c.context, c.store.Namespace, oldRgwKeyName)
if err != nil {
logger.Infof("failed to delete legacy rgw key %q. %v", oldRgwKeyName, err)
}
}
}
}
// Delete the object store.
// WARNING: This is a very destructive action that deletes all metadata and data pools.
func (c *clusterConfig) deleteStore() error {
logger.Infof("Deleting object store %s from namespace %s", c.store.Name, c.store.Namespace)
var gracePeriod int64
propagation := metav1.DeletePropagationForeground
options := &metav1.DeleteOptions{GracePeriodSeconds: &gracePeriod, PropagationPolicy: &propagation}
// Delete the rgw service
err := c.context.Clientset.CoreV1().Services(c.store.Namespace).Delete(c.instanceName(), options)
if err != nil && !kerrors.IsNotFound(err) {
logger.Warningf("failed to delete rgw service. %v", err)
}
// Make a best effort to delete the rgw pods deployments
deps, err := k8sutil.GetDeployments(c.context.Clientset, c.store.Namespace, c.storeLabelSelector())
if err != nil {
logger.Warning("could not get deployments for object store %s (matching label selector %q). %v", c.store.Namespace, c.storeLabelSelector(), err)
}
for _, d := range deps.Items {
if err := k8sutil.DeleteDeployment(c.context.Clientset, c.store.Namespace, d.Name); err != nil {
logger.Warning("error during deletion of deployment %s resource. %v", d.Name, err)
}
}
// Delete the rgw config map keyrings
err = c.context.Clientset.CoreV1().Secrets(c.store.Namespace).Delete(c.instanceName(), options)
if err != nil && !kerrors.IsNotFound(err) {
logger.Warningf("failed to delete rgw secret. %v", err)
}
// Delete rgw CephX keys
for i := 0; i < int(c.store.Spec.Gateway.Instances); i++ {
daemonLetterID := k8sutil.IndexToName(i)
keyName := fmt.Sprintf("client.%s.%s", strings.Replace(c.store.Name, "-", ".", -1), daemonLetterID)
err := client.AuthDelete(c.context, c.store.Namespace, keyName)
if err != nil {
return err
}
}
// Delete the realm and pools
objContext := NewContext(c.context, c.store.Name, c.store.Namespace)
err = deleteRealmAndPools(objContext, c.store.Spec.PreservePoolsOnDelete)
if err != nil {
return errors.Wrapf(err, "failed to delete the realm and pools")
}
logger.Infof("Completed deleting object store %s", c.store.Name)
return nil
}
func (c *clusterConfig) instanceName() string {
return fmt.Sprintf("%s-%s", AppName, c.store.Name)
}
func (c *clusterConfig) storeLabelSelector() string {
return fmt.Sprintf("rook_object_store=%s", c.store.Name)
}
// Validate the object store arguments
func validateStore(context *clusterd.Context, s cephv1.CephObjectStore) error {
if s.Name == "" {
return errors.New("missing name")
}
if s.Namespace == "" {
return errors.New("missing namespace")
}
if err := pool.ValidatePoolSpec(context, s.Namespace, &s.Spec.MetadataPool); err != nil {
return errors.Wrapf(err, "invalid metadata pool spec")
}
if err := pool.ValidatePoolSpec(context, s.Namespace, &s.Spec.DataPool); err != nil {
return errors.Wrapf(err, "invalid data pool spec")
}
return nil
}