forked from openshift/origin
-
Notifications
You must be signed in to change notification settings - Fork 0
/
util.go
660 lines (584 loc) · 25 KB
/
util.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
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
package util
import (
"fmt"
"reflect"
"sort"
"strconv"
"strings"
"time"
"k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/api/meta"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/labels"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/schema"
"k8s.io/apimachinery/pkg/util/diff"
intstrutil "k8s.io/apimachinery/pkg/util/intstr"
"k8s.io/apimachinery/pkg/util/sets"
"k8s.io/client-go/dynamic"
"k8s.io/client-go/kubernetes"
scaleclient "k8s.io/client-go/scale"
autoscalingv1 "k8s.io/kubernetes/pkg/apis/autoscaling/v1"
kapiv1 "k8s.io/kubernetes/pkg/apis/core/v1"
"k8s.io/kubernetes/pkg/kubectl"
appsv1 "github.com/openshift/api/apps/v1"
"github.com/openshift/origin/pkg/api/apihelpers"
)
// rcMapper pins preferred version to v1 and scale kind to autoscaling/v1 Scale
// this avoids putting complete server discovery (including extension APIs) in the critical path for deployments
type rcMapper struct{}
func (rcMapper) ResourceFor(gvr schema.GroupVersionResource) (schema.GroupVersionResource, error) {
if gvr.Group == "" && gvr.Resource == "replicationcontrollers" {
return kapiv1.SchemeGroupVersion.WithResource("replicationcontrollers"), nil
}
return schema.GroupVersionResource{}, fmt.Errorf("unknown replication controller resource: %#v", gvr)
}
func (rcMapper) ScaleForResource(gvr schema.GroupVersionResource) (schema.GroupVersionKind, error) {
if gvr == kapiv1.SchemeGroupVersion.WithResource("replicationcontrollers") {
return autoscalingv1.SchemeGroupVersion.WithKind("Scale"), nil
}
return schema.GroupVersionKind{}, fmt.Errorf("unknown replication controller resource: %#v", gvr)
}
// DecodeDeploymentConfig decodes a DeploymentConfig from controller using annotation codec.
// An error is returned if the controller doesn't contain an encoded config or decoding fail.
func DecodeDeploymentConfig(controller metav1.ObjectMetaAccessor) (*appsv1.DeploymentConfig, error) {
encodedConfig, exists := controller.GetObjectMeta().GetAnnotations()[appsv1.DeploymentEncodedConfigAnnotation]
if !exists {
return nil, fmt.Errorf("object %s does not have encoded deployment config annotation", controller.GetObjectMeta().GetName())
}
config, err := runtime.Decode(annotationDecoder, []byte(encodedConfig))
if err != nil {
return nil, err
}
externalConfig, ok := config.(*appsv1.DeploymentConfig)
if !ok {
return nil, fmt.Errorf("object %+v is not v1.DeploymentConfig", config)
}
return externalConfig, nil
}
// RolloutExceededTimeoutSeconds returns true if the current deployment exceeded
// the timeoutSeconds defined for its strategy.
// Note that this is different than activeDeadlineSeconds which is the timeout
// set for the deployer pod. In some cases, the deployer pod cannot be created
// (like quota, etc...). In that case deployer controller use this function to
// measure if the created deployment (RC) exceeded the timeout.
func RolloutExceededTimeoutSeconds(config *appsv1.DeploymentConfig, latestRC *v1.ReplicationController) bool {
timeoutSeconds := GetTimeoutSecondsForStrategy(config)
// If user set the timeoutSeconds to 0, we assume there should be no timeout.
if timeoutSeconds <= 0 {
return false
}
return int64(time.Since(latestRC.CreationTimestamp.Time).Seconds()) > timeoutSeconds
}
// GetTimeoutSecondsForStrategy returns the timeout in seconds defined in the
// deployment config strategy.
func GetTimeoutSecondsForStrategy(config *appsv1.DeploymentConfig) int64 {
var timeoutSeconds int64
switch config.Spec.Strategy.Type {
case appsv1.DeploymentStrategyTypeRolling:
timeoutSeconds = DefaultRollingTimeoutSeconds
if t := config.Spec.Strategy.RollingParams.TimeoutSeconds; t != nil {
timeoutSeconds = *t
}
case appsv1.DeploymentStrategyTypeRecreate:
timeoutSeconds = DefaultRecreateTimeoutSeconds
if t := config.Spec.Strategy.RecreateParams.TimeoutSeconds; t != nil {
timeoutSeconds = *t
}
case appsv1.DeploymentStrategyTypeCustom:
timeoutSeconds = DefaultRecreateTimeoutSeconds
}
return timeoutSeconds
}
func NewReplicationControllerScaler(client kubernetes.Interface) kubectl.Scaler {
return kubectl.NewScaler(NewReplicationControllerScaleClient(client))
}
func NewReplicationControllerScaleClient(client kubernetes.Interface) scaleclient.ScalesGetter {
return scaleclient.New(client.CoreV1().RESTClient(), rcMapper{}, dynamic.LegacyAPIPathResolverFunc, rcMapper{})
}
// DeployerPodNameForDeployment returns the name of a pod for a given deployment
func DeployerPodNameForDeployment(deployment string) string {
return apihelpers.GetPodName(deployment, "deploy")
}
// NewDeploymentCondition creates a new deployment condition.
func NewDeploymentCondition(condType appsv1.DeploymentConditionType, status v1.ConditionStatus, reason string, message string) *appsv1.DeploymentCondition {
return &appsv1.DeploymentCondition{
Type: condType,
Status: status,
LastUpdateTime: metav1.Now(),
LastTransitionTime: metav1.Now(),
Reason: reason,
Message: message,
}
}
// SetDeploymentCondition updates the deployment to include the provided condition. If the condition that
// we are about to add already exists and has the same status and reason then we are not going to update.
func SetDeploymentCondition(status *appsv1.DeploymentConfigStatus, condition appsv1.DeploymentCondition) {
currentCond := GetDeploymentCondition(*status, condition.Type)
if currentCond != nil && currentCond.Status == condition.Status && currentCond.Reason == condition.Reason {
return
}
// Preserve lastTransitionTime if we are not switching between statuses of a condition.
if currentCond != nil && currentCond.Status == condition.Status {
condition.LastTransitionTime = currentCond.LastTransitionTime
}
newConditions := filterOutCondition(status.Conditions, condition.Type)
status.Conditions = append(newConditions, condition)
}
// RemoveDeploymentCondition removes the deployment condition with the provided type.
func RemoveDeploymentCondition(status *appsv1.DeploymentConfigStatus, condType appsv1.DeploymentConditionType) {
status.Conditions = filterOutCondition(status.Conditions, condType)
}
// filterOutCondition returns a new slice of deployment conditions without conditions with the provided type.
func filterOutCondition(conditions []appsv1.DeploymentCondition, condType appsv1.DeploymentConditionType) []appsv1.DeploymentCondition {
var newConditions []appsv1.DeploymentCondition
for _, c := range conditions {
if c.Type == condType {
continue
}
newConditions = append(newConditions, c)
}
return newConditions
}
// IsOwnedByConfig checks whether the provided replication controller is part of a
// deployment configuration.
// TODO: Switch to use owner references once we got those working.
func IsOwnedByConfig(obj metav1.Object) bool {
_, ok := obj.GetAnnotations()[appsv1.DeploymentConfigAnnotation]
return ok
}
// DeploymentsForCleanup determines which deployments for a configuration are relevant for the
// revision history limit quota
func DeploymentsForCleanup(configuration *appsv1.DeploymentConfig, deployments []*v1.ReplicationController) []v1.ReplicationController {
// if the past deployment quota has been exceeded, we need to prune the oldest deployments
// until we are not exceeding the quota any longer, so we sort oldest first
sort.Sort(sort.Reverse(ByLatestVersionDesc(deployments)))
relevantDeployments := []v1.ReplicationController{}
activeDeployment := ActiveDeployment(deployments)
if activeDeployment == nil {
// if cleanup policy is set but no successful deployments have happened, there will be
// no active deployment. We can consider all of the deployments in this case except for
// the latest one
for i := range deployments {
deployment := deployments[i]
if deploymentVersionFor(deployment) != configuration.Status.LatestVersion {
relevantDeployments = append(relevantDeployments, *deployment)
}
}
} else {
// if there is an active deployment, we need to filter out any deployments that we don't
// care about, namely the active deployment and any newer deployments
for i := range deployments {
deployment := deployments[i]
if deployment != activeDeployment && deploymentVersionFor(deployment) < deploymentVersionFor(activeDeployment) {
relevantDeployments = append(relevantDeployments, *deployment)
}
}
}
return relevantDeployments
}
// RecordConfigChangeCause sets a deployment config cause for config change.
func RecordConfigChangeCause(config *appsv1.DeploymentConfig) {
config.Status.Details = &appsv1.DeploymentDetails{
Causes: []appsv1.DeploymentCause{
{
Type: appsv1.DeploymentTriggerOnConfigChange,
},
},
Message: "config change",
}
}
// RecordImageChangeCauses sets a deployment config cause for image change. It
// takes a list of changed images and record an cause for each image.
func RecordImageChangeCauses(config *appsv1.DeploymentConfig, imageNames []string) {
config.Status.Details = &appsv1.DeploymentDetails{
Message: "image change",
}
for _, imageName := range imageNames {
config.Status.Details.Causes = append(config.Status.Details.Causes, appsv1.DeploymentCause{
Type: appsv1.DeploymentTriggerOnImageChange,
ImageTrigger: &appsv1.DeploymentCauseImageTrigger{From: v1.ObjectReference{Kind: "DockerImage", Name: imageName}},
})
}
}
// HasUpdatedImages indicates if the deployment configuration images were updated.
func HasUpdatedImages(dc *appsv1.DeploymentConfig, rc *v1.ReplicationController) (bool, []string) {
updatedImages := []string{}
rcImages := sets.NewString()
for _, c := range rc.Spec.Template.Spec.Containers {
rcImages.Insert(c.Image)
}
for _, c := range dc.Spec.Template.Spec.Containers {
if !rcImages.Has(c.Image) {
updatedImages = append(updatedImages, c.Image)
}
}
if len(updatedImages) == 0 {
return false, nil
}
return true, updatedImages
}
// HasLatestPodTemplate checks for differences between current deployment config
// template and deployment config template encoded in the latest replication
// controller. If they are different it will return an string diff containing
// the change.
func HasLatestPodTemplate(currentConfig *appsv1.DeploymentConfig, rc *v1.ReplicationController) (bool, string, error) {
latestConfig, err := DecodeDeploymentConfig(rc)
if err != nil {
return true, "", err
}
// The latestConfig represents an encoded DC in the latest deployment (RC).
// TODO: This diverges from the upstream behavior where we compare deployment
// template vs. replicaset template. Doing that will disallow any
// modifications to the RC the deployment config controller create and manage
// as a change to the RC will cause the DC to be reconciled and ultimately
// trigger a new rollout because of skew between latest RC template and DC
// template.
if reflect.DeepEqual(currentConfig.Spec.Template, latestConfig.Spec.Template) {
return true, "", nil
}
return false, diff.ObjectReflectDiff(currentConfig.Spec.Template, latestConfig.Spec.Template), nil
}
// IsProgressing expects a state deployment config and its updated status in order to
// determine if there is any progress.
func IsProgressing(config *appsv1.DeploymentConfig, newStatus *appsv1.DeploymentConfigStatus) bool {
oldStatusOldReplicas := config.Status.Replicas - config.Status.UpdatedReplicas
newStatusOldReplicas := newStatus.Replicas - newStatus.UpdatedReplicas
return (newStatus.UpdatedReplicas > config.Status.UpdatedReplicas) || (newStatusOldReplicas < oldStatusOldReplicas)
}
// LabelForDeployment builds a string identifier for a Deployment.
func LabelForDeployment(deployment *v1.ReplicationController) string {
return fmt.Sprintf("%s/%s", deployment.Namespace, deployment.Name)
}
// LabelForDeploymentConfig builds a string identifier for a DeploymentConfig.
func LabelForDeploymentConfig(config runtime.Object) string {
accessor, _ := meta.Accessor(config)
return fmt.Sprintf("%s/%s", accessor.GetNamespace(), accessor.GetName())
}
// DeploymentDesiredReplicas returns number of desired replica for the given replication controller
func DeploymentDesiredReplicas(obj runtime.Object) (int32, bool) {
return int32AnnotationFor(obj, appsv1.DesiredReplicasAnnotation)
}
// LatestDeploymentNameForConfig returns a stable identifier for deployment config
func LatestDeploymentNameForConfig(config *appsv1.DeploymentConfig) string {
return LatestDeploymentNameForConfigAndVersion(config.Name, config.Status.LatestVersion)
}
// DeploymentNameForConfigVersion returns the name of the version-th deployment
// for the config that has the provided name
func DeploymentNameForConfigVersion(name string, version int64) string {
return fmt.Sprintf("%s-%d", name, version)
}
// LatestDeploymentNameForConfigAndVersion returns a stable identifier for config based on its version.
func LatestDeploymentNameForConfigAndVersion(name string, version int64) string {
return fmt.Sprintf("%s-%d", name, version)
}
func DeployerPodNameFor(obj runtime.Object) string {
return AnnotationFor(obj, appsv1.DeploymentPodAnnotation)
}
func DeploymentConfigNameFor(obj runtime.Object) string {
return AnnotationFor(obj, appsv1.DeploymentConfigAnnotation)
}
func DeploymentStatusReasonFor(obj runtime.Object) string {
return AnnotationFor(obj, appsv1.DeploymentStatusReasonAnnotation)
}
func DeleteStatusReasons(rc *v1.ReplicationController) {
delete(rc.Annotations, appsv1.DeploymentStatusReasonAnnotation)
delete(rc.Annotations, appsv1.DeploymentCancelledAnnotation)
}
func SetCancelledByUserReason(rc *v1.ReplicationController) {
rc.Annotations[appsv1.DeploymentCancelledAnnotation] = "true"
rc.Annotations[appsv1.DeploymentStatusReasonAnnotation] = deploymentCancelledByUser
}
func SetCancelledByNewerDeployment(rc *v1.ReplicationController) {
rc.Annotations[appsv1.DeploymentCancelledAnnotation] = "true"
rc.Annotations[appsv1.DeploymentStatusReasonAnnotation] = deploymentCancelledNewerDeploymentExists
}
// HasSynced checks if the provided deployment config has been noticed by the deployment
// config controller.
func HasSynced(dc *appsv1.DeploymentConfig, generation int64) bool {
return dc.Status.ObservedGeneration >= generation
}
// HasChangeTrigger returns whether the provided deployment configuration has
// a config change trigger or not
func HasChangeTrigger(config *appsv1.DeploymentConfig) bool {
for _, trigger := range config.Spec.Triggers {
if trigger.Type == appsv1.DeploymentTriggerOnConfigChange {
return true
}
}
return false
}
// HasTrigger returns whether the provided deployment configuration has any trigger
// defined or not.
func HasTrigger(config *appsv1.DeploymentConfig) bool {
return HasChangeTrigger(config) || HasImageChangeTrigger(config)
}
// HasLastTriggeredImage returns whether all image change triggers in provided deployment
// configuration has the lastTriggerImage field set (iow. all images were updated for
// them). Returns false if deployment configuration has no image change trigger defined.
func HasLastTriggeredImage(config *appsv1.DeploymentConfig) bool {
hasImageTrigger := false
for _, trigger := range config.Spec.Triggers {
if trigger.Type == appsv1.DeploymentTriggerOnImageChange {
hasImageTrigger = true
if len(trigger.ImageChangeParams.LastTriggeredImage) == 0 {
return false
}
}
}
return hasImageTrigger
}
// IsInitialDeployment returns whether the deployment configuration is the first version
// of this configuration.
func IsInitialDeployment(config *appsv1.DeploymentConfig) bool {
return config.Status.LatestVersion == 0
}
// IsRollingConfig returns true if the strategy type is a rolling update.
func IsRollingConfig(config *appsv1.DeploymentConfig) bool {
return config.Spec.Strategy.Type == appsv1.DeploymentStrategyTypeRolling
}
// ResolveFenceposts is copy from k8s deployment_utils to avoid unnecessary imports
func ResolveFenceposts(maxSurge, maxUnavailable *intstrutil.IntOrString, desired int32) (int32, int32, error) {
surge, err := intstrutil.GetValueFromIntOrPercent(maxSurge, int(desired), true)
if err != nil {
return 0, 0, err
}
unavailable, err := intstrutil.GetValueFromIntOrPercent(maxUnavailable, int(desired), false)
if err != nil {
return 0, 0, err
}
if surge == 0 && unavailable == 0 {
// Validation should never allow the user to explicitly use zero values for both maxSurge
// maxUnavailable. Due to rounding down maxUnavailable though, it may resolve to zero.
// If both fenceposts resolve to zero, then we should set maxUnavailable to 1 on the
// theory that surge might not work due to quota.
unavailable = 1
}
return int32(surge), int32(unavailable), nil
}
// MaxUnavailable returns the maximum unavailable pods a rolling deployment config can take.
func MaxUnavailable(config *appsv1.DeploymentConfig) int32 {
if !IsRollingConfig(config) {
return int32(0)
}
// Error caught by validation
_, maxUnavailable, _ := ResolveFenceposts(config.Spec.Strategy.RollingParams.MaxSurge, config.Spec.Strategy.RollingParams.MaxUnavailable, config.Spec.Replicas)
return maxUnavailable
}
// MaxSurge returns the maximum surge pods a rolling deployment config can take.
func MaxSurge(config appsv1.DeploymentConfig) int32 {
if !IsRollingConfig(&config) {
return int32(0)
}
// Error caught by validation
maxSurge, _, _ := ResolveFenceposts(config.Spec.Strategy.RollingParams.MaxSurge, config.Spec.Strategy.RollingParams.MaxUnavailable, config.Spec.Replicas)
return maxSurge
}
// AnnotationFor returns the annotation with key for obj.
func AnnotationFor(obj runtime.Object, key string) string {
objectMeta, err := meta.Accessor(obj)
if err != nil {
return ""
}
if objectMeta == nil || reflect.ValueOf(objectMeta).IsNil() {
return ""
}
return objectMeta.GetAnnotations()[key]
}
// ActiveDeployment returns the latest complete deployment, or nil if there is
// no such deployment. The active deployment is not always the same as the
// latest deployment.
func ActiveDeployment(input []*v1.ReplicationController) *v1.ReplicationController {
var activeDeployment *v1.ReplicationController
var lastCompleteDeploymentVersion int64 = 0
for i := range input {
deployment := input[i]
deploymentVersion := DeploymentVersionFor(deployment)
if IsCompleteDeployment(deployment) && deploymentVersion > lastCompleteDeploymentVersion {
activeDeployment = deployment
lastCompleteDeploymentVersion = deploymentVersion
}
}
return activeDeployment
}
// ConfigSelector returns a label Selector which can be used to find all
// deployments for a DeploymentConfig.
//
// TODO: Using the annotation constant for now since the value is correct
// but we could consider adding a new constant to the public types.
func ConfigSelector(name string) labels.Selector {
return labels.SelectorFromValidatedSet(labels.Set{appsv1.DeploymentConfigAnnotation: name})
}
// IsCompleteDeployment returns true if the passed deployment is in state complete.
func IsCompleteDeployment(deployment runtime.Object) bool {
return DeploymentStatusFor(deployment) == appsv1.DeploymentStatusComplete
}
// IsFailedDeployment returns true if the passed deployment failed.
func IsFailedDeployment(deployment runtime.Object) bool {
return DeploymentStatusFor(deployment) == appsv1.DeploymentStatusFailed
}
// IsTerminatedDeployment returns true if the passed deployment has terminated (either
// complete or failed).
func IsTerminatedDeployment(deployment runtime.Object) bool {
return IsCompleteDeployment(deployment) || IsFailedDeployment(deployment)
}
func IsDeploymentCancelled(deployment runtime.Object) bool {
value := AnnotationFor(deployment, appsv1.DeploymentCancelledAnnotation)
return strings.EqualFold(value, "true")
}
// DeployerPodSelector returns a label Selector which can be used to find all
// deployer pods associated with a deployment with name.
func DeployerPodSelector(name string) labels.Selector {
return labels.SelectorFromValidatedSet(labels.Set{appsv1.DeployerPodForDeploymentLabel: name})
}
func DeploymentStatusFor(deployment runtime.Object) appsv1.DeploymentStatus {
return appsv1.DeploymentStatus(AnnotationFor(deployment, appsv1.DeploymentStatusAnnotation))
}
func SetDeploymentLatestVersionAnnotation(rc *v1.ReplicationController, version string) {
if rc.Annotations == nil {
rc.Annotations = map[string]string{}
}
rc.Annotations[appsv1.DeploymentVersionAnnotation] = version
}
func DeploymentVersionFor(obj runtime.Object) int64 {
v, err := strconv.ParseInt(AnnotationFor(obj, appsv1.DeploymentVersionAnnotation), 10, 64)
if err != nil {
return -1
}
return v
}
func DeploymentNameFor(obj runtime.Object) string {
return AnnotationFor(obj, appsv1.DeploymentAnnotation)
}
func deploymentVersionFor(obj runtime.Object) int64 {
v, err := strconv.ParseInt(AnnotationFor(obj, appsv1.DeploymentVersionAnnotation), 10, 64)
if err != nil {
return -1
}
return v
}
// LatestDeploymentInfo returns info about the latest deployment for a config,
// or nil if there is no latest deployment. The latest deployment is not
// always the same as the active deployment.
func LatestDeploymentInfo(config *appsv1.DeploymentConfig, deployments []*v1.ReplicationController) (bool, *v1.ReplicationController) {
if config.Status.LatestVersion == 0 || len(deployments) == 0 {
return false, nil
}
sort.Sort(ByLatestVersionDesc(deployments))
candidate := deployments[0]
return deploymentVersionFor(candidate) == config.Status.LatestVersion, candidate
}
// GetDeploymentCondition returns the condition with the provided type.
func GetDeploymentCondition(status appsv1.DeploymentConfigStatus, condType appsv1.DeploymentConditionType) *appsv1.DeploymentCondition {
for i := range status.Conditions {
c := status.Conditions[i]
if c.Type == condType {
return &c
}
}
return nil
}
// GetReplicaCountForDeployments returns the sum of all replicas for the
// given deployments.
func GetReplicaCountForDeployments(deployments []*v1.ReplicationController) int32 {
totalReplicaCount := int32(0)
for _, deployment := range deployments {
count := deployment.Spec.Replicas
if count == nil {
continue
}
totalReplicaCount += *count
}
return totalReplicaCount
}
// GetStatusReplicaCountForDeployments returns the sum of the replicas reported in the
// status of the given deployments.
func GetStatusReplicaCountForDeployments(deployments []*v1.ReplicationController) int32 {
totalReplicaCount := int32(0)
for _, deployment := range deployments {
totalReplicaCount += deployment.Status.Replicas
}
return totalReplicaCount
}
// GetReadyReplicaCountForReplicationControllers returns the number of ready pods corresponding to
// the given replication controller.
func GetReadyReplicaCountForReplicationControllers(replicationControllers []*v1.ReplicationController) int32 {
totalReadyReplicas := int32(0)
for _, rc := range replicationControllers {
if rc != nil {
totalReadyReplicas += rc.Status.ReadyReplicas
}
}
return totalReadyReplicas
}
// GetAvailableReplicaCountForReplicationControllers returns the number of available pods corresponding to
// the given replication controller.
func GetAvailableReplicaCountForReplicationControllers(replicationControllers []*v1.ReplicationController) int32 {
totalAvailableReplicas := int32(0)
for _, rc := range replicationControllers {
if rc != nil {
totalAvailableReplicas += rc.Status.AvailableReplicas
}
}
return totalAvailableReplicas
}
// HasImageChangeTrigger returns whether the provided deployment configuration has
// an image change trigger or not.
func HasImageChangeTrigger(config *appsv1.DeploymentConfig) bool {
for _, trigger := range config.Spec.Triggers {
if trigger.Type == appsv1.DeploymentTriggerOnImageChange {
return true
}
}
return false
}
// CanTransitionPhase returns whether it is allowed to go from the current to the next phase.
func CanTransitionPhase(current, next appsv1.DeploymentStatus) bool {
switch current {
case appsv1.DeploymentStatusNew:
switch next {
case appsv1.DeploymentStatusPending,
appsv1.DeploymentStatusRunning,
appsv1.DeploymentStatusFailed,
appsv1.DeploymentStatusComplete:
return true
}
case appsv1.DeploymentStatusPending:
switch next {
case appsv1.DeploymentStatusRunning,
appsv1.DeploymentStatusFailed,
appsv1.DeploymentStatusComplete:
return true
}
case appsv1.DeploymentStatusRunning:
switch next {
case appsv1.DeploymentStatusFailed, appsv1.DeploymentStatusComplete:
return true
}
}
return false
}
func int32AnnotationFor(obj runtime.Object, key string) (int32, bool) {
s := AnnotationFor(obj, key)
if len(s) == 0 {
return 0, false
}
i, err := strconv.ParseInt(s, 10, 32)
if err != nil {
return 0, false
}
return int32(i), true
}
type ByLatestVersionAsc []*v1.ReplicationController
func (d ByLatestVersionAsc) Len() int { return len(d) }
func (d ByLatestVersionAsc) Swap(i, j int) { d[i], d[j] = d[j], d[i] }
func (d ByLatestVersionAsc) Less(i, j int) bool {
return DeploymentVersionFor(d[i]) < DeploymentVersionFor(d[j])
}
// ByLatestVersionDesc sorts deployments by LatestVersion descending.
type ByLatestVersionDesc []*v1.ReplicationController
func (d ByLatestVersionDesc) Len() int { return len(d) }
func (d ByLatestVersionDesc) Swap(i, j int) { d[i], d[j] = d[j], d[i] }
func (d ByLatestVersionDesc) Less(i, j int) bool {
return DeploymentVersionFor(d[j]) < DeploymentVersionFor(d[i])
}