forked from rancher/rke
/
cluster.go
555 lines (517 loc) · 19.4 KB
/
cluster.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
package cluster
import (
"context"
"fmt"
"net"
"reflect"
"strings"
"time"
"github.com/docker/docker/api/types"
"github.com/rancher/rke/authz"
"github.com/rancher/rke/docker"
"github.com/rancher/rke/hosts"
"github.com/rancher/rke/k8s"
"github.com/rancher/rke/log"
"github.com/rancher/rke/pki"
"github.com/rancher/rke/services"
"github.com/rancher/rke/util"
v3 "github.com/rancher/types/apis/management.cattle.io/v3"
"github.com/sirupsen/logrus"
"golang.org/x/sync/errgroup"
"gopkg.in/yaml.v2"
v1 "k8s.io/api/core/v1"
"k8s.io/client-go/kubernetes"
"k8s.io/client-go/tools/clientcmd"
"k8s.io/client-go/util/cert"
)
type Cluster struct {
AuthnStrategies map[string]bool
ConfigPath string
ConfigDir string
CloudConfigFile string
ControlPlaneHosts []*hosts.Host
Certificates map[string]pki.CertificatePKI
CertificateDir string
ClusterDomain string
ClusterCIDR string
ClusterDNSServer string
DinD bool
DockerDialerFactory hosts.DialerFactory
EtcdHosts []*hosts.Host
EtcdReadyHosts []*hosts.Host
ForceDeployCerts bool
InactiveHosts []*hosts.Host
K8sWrapTransport k8s.WrapTransport
KubeClient *kubernetes.Clientset
KubernetesServiceIP net.IP
LocalKubeConfigPath string
LocalConnDialerFactory hosts.DialerFactory
PrivateRegistriesMap map[string]v3.PrivateRegistry
StateFilePath string
UpdateWorkersOnly bool
UseKubectlDeploy bool
v3.RancherKubernetesEngineConfig `yaml:",inline"`
WorkerHosts []*hosts.Host
}
const (
AuthnX509Provider = "x509"
AuthnWebhookProvider = "webhook"
StateConfigMapName = "cluster-state"
FullStateConfigMapName = "full-cluster-state"
UpdateStateTimeout = 30
GetStateTimeout = 30
KubernetesClientTimeOut = 30
SyncWorkers = 10
NoneAuthorizationMode = "none"
LocalNodeAddress = "127.0.0.1"
LocalNodeHostname = "localhost"
LocalNodeUser = "root"
CloudProvider = "CloudProvider"
ControlPlane = "controlPlane"
WorkerPlane = "workerPlan"
EtcdPlane = "etcd"
KubeAppLabel = "k8s-app"
AppLabel = "app"
NameLabel = "name"
WorkerThreads = util.WorkerThreads
serviceAccountTokenFileParam = "service-account-key-file"
)
func (c *Cluster) DeployControlPlane(ctx context.Context) error {
// Deploy Etcd Plane
etcdNodePlanMap := make(map[string]v3.RKEConfigNodePlan)
// Build etcd node plan map
for _, etcdHost := range c.EtcdHosts {
etcdNodePlanMap[etcdHost.Address] = BuildRKEConfigNodePlan(ctx, c, etcdHost, etcdHost.DockerInfo)
}
if len(c.Services.Etcd.ExternalURLs) > 0 {
log.Infof(ctx, "[etcd] External etcd connection string has been specified, skipping etcd plane")
} else {
if err := services.RunEtcdPlane(ctx, c.EtcdHosts, etcdNodePlanMap, c.LocalConnDialerFactory, c.PrivateRegistriesMap, c.UpdateWorkersOnly, c.SystemImages.Alpine, c.Services.Etcd, c.Certificates); err != nil {
return fmt.Errorf("[etcd] Failed to bring up Etcd Plane: %v", err)
}
}
// Deploy Control plane
cpNodePlanMap := make(map[string]v3.RKEConfigNodePlan)
// Build cp node plan map
for _, cpHost := range c.ControlPlaneHosts {
cpNodePlanMap[cpHost.Address] = BuildRKEConfigNodePlan(ctx, c, cpHost, cpHost.DockerInfo)
}
if err := services.RunControlPlane(ctx, c.ControlPlaneHosts,
c.LocalConnDialerFactory,
c.PrivateRegistriesMap,
cpNodePlanMap,
c.UpdateWorkersOnly,
c.SystemImages.Alpine,
c.Certificates); err != nil {
return fmt.Errorf("[controlPlane] Failed to bring up Control Plane: %v", err)
}
return nil
}
func (c *Cluster) DeployWorkerPlane(ctx context.Context) error {
// Deploy Worker plane
workerNodePlanMap := make(map[string]v3.RKEConfigNodePlan)
// Build cp node plan map
allHosts := hosts.GetUniqueHostList(c.EtcdHosts, c.ControlPlaneHosts, c.WorkerHosts)
for _, workerHost := range allHosts {
workerNodePlanMap[workerHost.Address] = BuildRKEConfigNodePlan(ctx, c, workerHost, workerHost.DockerInfo)
}
if err := services.RunWorkerPlane(ctx, allHosts,
c.LocalConnDialerFactory,
c.PrivateRegistriesMap,
workerNodePlanMap,
c.Certificates,
c.UpdateWorkersOnly,
c.SystemImages.Alpine); err != nil {
return fmt.Errorf("[workerPlane] Failed to bring up Worker Plane: %v", err)
}
return nil
}
func ParseConfig(clusterFile string) (*v3.RancherKubernetesEngineConfig, error) {
logrus.Debugf("Parsing cluster file [%v]", clusterFile)
var rkeConfig v3.RancherKubernetesEngineConfig
if err := yaml.Unmarshal([]byte(clusterFile), &rkeConfig); err != nil {
return nil, err
}
return &rkeConfig, nil
}
func InitClusterObject(ctx context.Context, rkeConfig *v3.RancherKubernetesEngineConfig, flags ExternalFlags) (*Cluster, error) {
// basic cluster object from rkeConfig
c := &Cluster{
AuthnStrategies: make(map[string]bool),
RancherKubernetesEngineConfig: *rkeConfig,
ConfigPath: flags.ClusterFilePath,
ConfigDir: flags.ConfigDir,
DinD: flags.DinD,
CertificateDir: flags.CertificateDir,
StateFilePath: GetStateFilePath(flags.ClusterFilePath, flags.ConfigDir),
PrivateRegistriesMap: make(map[string]v3.PrivateRegistry),
}
if len(c.ConfigPath) == 0 {
c.ConfigPath = pki.ClusterConfig
}
// set kube_config, state file, and certificate dir
c.LocalKubeConfigPath = pki.GetLocalKubeConfig(c.ConfigPath, c.ConfigDir)
c.StateFilePath = GetStateFilePath(c.ConfigPath, c.ConfigDir)
if len(c.CertificateDir) == 0 {
c.CertificateDir = GetCertificateDirPath(c.ConfigPath, c.ConfigDir)
}
// Setting cluster Defaults
err := c.setClusterDefaults(ctx, flags)
if err != nil {
return nil, err
}
// extract cluster network configuration
c.setNetworkOptions()
// Register cloud provider
if err := c.setCloudProvider(); err != nil {
return nil, fmt.Errorf("Failed to register cloud provider: %v", err)
}
// set hosts groups
if err := c.InvertIndexHosts(); err != nil {
return nil, fmt.Errorf("Failed to classify hosts from config file: %v", err)
}
// validate cluster configuration
if err := c.ValidateCluster(ctx); err != nil {
return nil, fmt.Errorf("Failed to validate cluster: %v", err)
}
return c, nil
}
func (c *Cluster) setNetworkOptions() error {
var err error
c.KubernetesServiceIP, err = pki.GetKubernetesServiceIP(c.Services.KubeAPI.ServiceClusterIPRange)
if err != nil {
return fmt.Errorf("Failed to get Kubernetes Service IP: %v", err)
}
c.ClusterDomain = c.Services.Kubelet.ClusterDomain
c.ClusterCIDR = c.Services.KubeController.ClusterCIDR
c.ClusterDNSServer = c.Services.Kubelet.ClusterDNSServer
return nil
}
func (c *Cluster) SetupDialers(ctx context.Context, dailersOptions hosts.DialersOptions) error {
c.DockerDialerFactory = dailersOptions.DockerDialerFactory
c.LocalConnDialerFactory = dailersOptions.LocalConnDialerFactory
c.K8sWrapTransport = dailersOptions.K8sWrapTransport
// Create k8s wrap transport for bastion host
if len(c.BastionHost.Address) > 0 {
var err error
c.K8sWrapTransport, err = hosts.BastionHostWrapTransport(c.BastionHost)
if err != nil {
return err
}
}
return nil
}
func RebuildKubeconfig(ctx context.Context, kubeCluster *Cluster) error {
return rebuildLocalAdminConfig(ctx, kubeCluster)
}
func rebuildLocalAdminConfig(ctx context.Context, kubeCluster *Cluster) error {
if len(kubeCluster.ControlPlaneHosts) == 0 {
return nil
}
log.Infof(ctx, "[reconcile] Rebuilding and updating local kube config")
var workingConfig, newConfig string
currentKubeConfig := kubeCluster.Certificates[pki.KubeAdminCertName]
caCrt := kubeCluster.Certificates[pki.CACertName].Certificate
for _, cpHost := range kubeCluster.ControlPlaneHosts {
if (currentKubeConfig == pki.CertificatePKI{}) {
kubeCluster.Certificates = make(map[string]pki.CertificatePKI)
newConfig = getLocalAdminConfigWithNewAddress(kubeCluster.LocalKubeConfigPath, cpHost.Address, kubeCluster.ClusterName)
} else {
kubeURL := fmt.Sprintf("https://%s:6443", cpHost.Address)
caData := string(cert.EncodeCertPEM(caCrt))
crtData := string(cert.EncodeCertPEM(currentKubeConfig.Certificate))
keyData := string(cert.EncodePrivateKeyPEM(currentKubeConfig.Key))
newConfig = pki.GetKubeConfigX509WithData(kubeURL, kubeCluster.ClusterName, pki.KubeAdminCertName, caData, crtData, keyData)
}
if err := pki.DeployAdminConfig(ctx, newConfig, kubeCluster.LocalKubeConfigPath); err != nil {
return fmt.Errorf("Failed to redeploy local admin config with new host")
}
workingConfig = newConfig
if _, err := GetK8sVersion(kubeCluster.LocalKubeConfigPath, kubeCluster.K8sWrapTransport); err == nil {
log.Infof(ctx, "[reconcile] host [%s] is active master on the cluster", cpHost.Address)
break
}
}
currentKubeConfig.Config = workingConfig
kubeCluster.Certificates[pki.KubeAdminCertName] = currentKubeConfig
return nil
}
func isLocalConfigWorking(ctx context.Context, localKubeConfigPath string, k8sWrapTransport k8s.WrapTransport) bool {
if _, err := GetK8sVersion(localKubeConfigPath, k8sWrapTransport); err != nil {
log.Infof(ctx, "[reconcile] Local config is not valid, rebuilding admin config")
return false
}
return true
}
func getLocalConfigAddress(localConfigPath string) (string, error) {
config, err := clientcmd.BuildConfigFromFlags("", localConfigPath)
if err != nil {
return "", err
}
splittedAdress := strings.Split(config.Host, ":")
address := splittedAdress[1]
return address[2:], nil
}
func getLocalAdminConfigWithNewAddress(localConfigPath, cpAddress string, clusterName string) string {
config, _ := clientcmd.BuildConfigFromFlags("", localConfigPath)
if config == nil || config.BearerToken != "" {
return ""
}
config.Host = fmt.Sprintf("https://%s:6443", cpAddress)
return pki.GetKubeConfigX509WithData(
"https://"+cpAddress+":6443",
clusterName,
pki.KubeAdminCertName,
string(config.CAData),
string(config.CertData),
string(config.KeyData))
}
func ApplyAuthzResources(ctx context.Context, rkeConfig v3.RancherKubernetesEngineConfig, flags ExternalFlags, dailersOptions hosts.DialersOptions) error {
// dialer factories are not needed here since we are not uses docker only k8s jobs
kubeCluster, err := InitClusterObject(ctx, &rkeConfig, flags)
if err != nil {
return err
}
if err := kubeCluster.SetupDialers(ctx, dailersOptions); err != nil {
return err
}
if len(kubeCluster.ControlPlaneHosts) == 0 {
return nil
}
if err := authz.ApplyJobDeployerServiceAccount(ctx, kubeCluster.LocalKubeConfigPath, kubeCluster.K8sWrapTransport); err != nil {
return fmt.Errorf("Failed to apply the ServiceAccount needed for job execution: %v", err)
}
if kubeCluster.Authorization.Mode == NoneAuthorizationMode {
return nil
}
if kubeCluster.Authorization.Mode == services.RBACAuthorizationMode {
if err := authz.ApplySystemNodeClusterRoleBinding(ctx, kubeCluster.LocalKubeConfigPath, kubeCluster.K8sWrapTransport); err != nil {
return fmt.Errorf("Failed to apply the ClusterRoleBinding needed for node authorization: %v", err)
}
if err := authz.ApplyKubeAPIClusterRole(ctx, kubeCluster.LocalKubeConfigPath, kubeCluster.K8sWrapTransport); err != nil {
return fmt.Errorf("Failed to apply the ClusterRole and Binding needed for node kubeapi proxy: %v", err)
}
}
if kubeCluster.Authorization.Mode == services.RBACAuthorizationMode && kubeCluster.Services.KubeAPI.PodSecurityPolicy {
if err := authz.ApplyDefaultPodSecurityPolicy(ctx, kubeCluster.LocalKubeConfigPath, kubeCluster.K8sWrapTransport); err != nil {
return fmt.Errorf("Failed to apply default PodSecurityPolicy: %v", err)
}
if err := authz.ApplyDefaultPodSecurityPolicyRole(ctx, kubeCluster.LocalKubeConfigPath, kubeCluster.K8sWrapTransport); err != nil {
return fmt.Errorf("Failed to apply default PodSecurityPolicy ClusterRole and ClusterRoleBinding: %v", err)
}
}
return nil
}
func (c *Cluster) deployAddons(ctx context.Context) error {
if err := c.deployK8sAddOns(ctx); err != nil {
return err
}
if err := c.deployUserAddOns(ctx); err != nil {
if err, ok := err.(*addonError); ok && err.isCritical {
return err
}
log.Warnf(ctx, "Failed to deploy addon execute job [%s]: %v", UserAddonsIncludeResourceName, err)
}
return nil
}
func (c *Cluster) SyncLabelsAndTaints(ctx context.Context, currentCluster *Cluster) error {
// Handle issue when deleting all controlplane nodes https://github.com/rancher/rancher/issues/15810
if currentCluster != nil {
cpToDelete := hosts.GetToDeleteHosts(currentCluster.ControlPlaneHosts, c.ControlPlaneHosts, c.InactiveHosts, false)
if len(cpToDelete) == len(currentCluster.ControlPlaneHosts) {
log.Infof(ctx, "[sync] Cleaning left control plane nodes from reconcilation")
for _, toDeleteHost := range cpToDelete {
if err := cleanControlNode(ctx, c, currentCluster, toDeleteHost); err != nil {
return err
}
}
}
}
if len(c.ControlPlaneHosts) > 0 {
log.Infof(ctx, "[sync] Syncing nodes Labels and Taints")
k8sClient, err := k8s.NewClient(c.LocalKubeConfigPath, c.K8sWrapTransport)
if err != nil {
return fmt.Errorf("Failed to initialize new kubernetes client: %v", err)
}
hostList := hosts.GetUniqueHostList(c.EtcdHosts, c.ControlPlaneHosts, c.WorkerHosts)
var errgrp errgroup.Group
hostQueue := make(chan *hosts.Host, len(hostList))
for _, host := range hostList {
hostQueue <- host
}
close(hostQueue)
for i := 0; i < SyncWorkers; i++ {
w := i
errgrp.Go(func() error {
var errs []error
for host := range hostQueue {
logrus.Debugf("worker [%d] starting sync for node [%s]", w, host.HostnameOverride)
if err := setNodeAnnotationsLabelsTaints(k8sClient, host); err != nil {
errs = append(errs, err)
}
}
if len(errs) > 0 {
return fmt.Errorf("%v", errs)
}
return nil
})
}
if err := errgrp.Wait(); err != nil {
return err
}
log.Infof(ctx, "[sync] Successfully synced nodes Labels and Taints")
}
return nil
}
func setNodeAnnotationsLabelsTaints(k8sClient *kubernetes.Clientset, host *hosts.Host) error {
node := &v1.Node{}
var err error
for retries := 0; retries <= 5; retries++ {
node, err = k8s.GetNode(k8sClient, host.HostnameOverride)
if err != nil {
logrus.Debugf("[hosts] Can't find node by name [%s], retrying..", host.HostnameOverride)
time.Sleep(2 * time.Second)
continue
}
oldNode := node.DeepCopy()
k8s.SetNodeAddressesAnnotations(node, host.InternalAddress, host.Address)
k8s.SyncNodeLabels(node, host.ToAddLabels, host.ToDelLabels)
k8s.SyncNodeTaints(node, host.ToAddTaints, host.ToDelTaints)
if reflect.DeepEqual(oldNode, node) {
logrus.Debugf("skipping syncing labels for node [%s]", node.Name)
return nil
}
_, err = k8sClient.CoreV1().Nodes().Update(node)
if err != nil {
logrus.Debugf("Error syncing labels for node [%s]: %v", node.Name, err)
time.Sleep(5 * time.Second)
continue
}
return nil
}
return err
}
func (c *Cluster) PrePullK8sImages(ctx context.Context) error {
log.Infof(ctx, "Pre-pulling kubernetes images")
var errgrp errgroup.Group
hostList := hosts.GetUniqueHostList(c.EtcdHosts, c.ControlPlaneHosts, c.WorkerHosts)
hostsQueue := util.GetObjectQueue(hostList)
for w := 0; w < WorkerThreads; w++ {
errgrp.Go(func() error {
var errList []error
for host := range hostsQueue {
runHost := host.(*hosts.Host)
err := docker.UseLocalOrPull(ctx, runHost.DClient, runHost.Address, c.SystemImages.Kubernetes, "pre-deploy", c.PrivateRegistriesMap)
if err != nil {
errList = append(errList, err)
}
}
return util.ErrList(errList)
})
}
if err := errgrp.Wait(); err != nil {
return err
}
log.Infof(ctx, "Kubernetes images pulled successfully")
return nil
}
func ConfigureCluster(
ctx context.Context,
rkeConfig v3.RancherKubernetesEngineConfig,
crtBundle map[string]pki.CertificatePKI,
flags ExternalFlags,
dailersOptions hosts.DialersOptions,
useKubectl bool) error {
// dialer factories are not needed here since we are not uses docker only k8s jobs
kubeCluster, err := InitClusterObject(ctx, &rkeConfig, flags)
if err != nil {
return err
}
if err := kubeCluster.SetupDialers(ctx, dailersOptions); err != nil {
return err
}
kubeCluster.UseKubectlDeploy = useKubectl
if len(kubeCluster.ControlPlaneHosts) > 0 {
kubeCluster.Certificates = crtBundle
if err := kubeCluster.deployNetworkPlugin(ctx); err != nil {
if err, ok := err.(*addonError); ok && err.isCritical {
return err
}
log.Warnf(ctx, "Failed to deploy addon execute job [%s]: %v", NetworkPluginResourceName, err)
}
if err := kubeCluster.deployAddons(ctx); err != nil {
return err
}
}
return nil
}
func RestartClusterPods(ctx context.Context, kubeCluster *Cluster) error {
log.Infof(ctx, "Restarting network, ingress, and metrics pods")
// this will remove the pods created by RKE and let the controller creates them again
kubeClient, err := k8s.NewClient(kubeCluster.LocalKubeConfigPath, kubeCluster.K8sWrapTransport)
if err != nil {
return fmt.Errorf("Failed to initialize new kubernetes client: %v", err)
}
labelsList := []string{
fmt.Sprintf("%s=%s", KubeAppLabel, CalicoNetworkPlugin),
fmt.Sprintf("%s=%s", KubeAppLabel, FlannelNetworkPlugin),
fmt.Sprintf("%s=%s", KubeAppLabel, CanalNetworkPlugin),
fmt.Sprintf("%s=%s", NameLabel, WeaveNetowrkAppName),
fmt.Sprintf("%s=%s", AppLabel, NginxIngressAddonAppName),
fmt.Sprintf("%s=%s", KubeAppLabel, DefaultMonitoringProvider),
fmt.Sprintf("%s=%s", KubeAppLabel, KubeDNSAddonAppName),
fmt.Sprintf("%s=%s", KubeAppLabel, KubeDNSAutoscalerAppName),
fmt.Sprintf("%s=%s", KubeAppLabel, CoreDNSAutoscalerAppName),
fmt.Sprintf("%s=%s", AppLabel, KubeAPIAuthAppName),
fmt.Sprintf("%s=%s", AppLabel, CattleClusterAgentAppName),
}
var errgrp errgroup.Group
labelQueue := util.GetObjectQueue(labelsList)
for w := 0; w < services.WorkerThreads; w++ {
errgrp.Go(func() error {
var errList []error
for label := range labelQueue {
runLabel := label.(string)
// list pods to be deleted
pods, err := k8s.ListPodsByLabel(kubeClient, runLabel)
if err != nil {
errList = append(errList, err)
}
// delete pods
err = k8s.DeletePods(kubeClient, pods)
if err != nil {
errList = append(errList, err)
}
}
return util.ErrList(errList)
})
}
if err := errgrp.Wait(); err != nil {
return err
}
return nil
}
func (c *Cluster) GetHostInfoMap() map[string]types.Info {
hostsInfoMap := make(map[string]types.Info)
allHosts := hosts.GetUniqueHostList(c.EtcdHosts, c.ControlPlaneHosts, c.WorkerHosts)
for _, host := range allHosts {
hostsInfoMap[host.Address] = host.DockerInfo
}
return hostsInfoMap
}
func IsLegacyKubeAPI(ctx context.Context, kubeCluster *Cluster) (bool, error) {
log.Infof(ctx, "[controlplane] Check if rotating a legacy cluster")
for _, host := range kubeCluster.ControlPlaneHosts {
kubeAPIInspect, err := docker.InspectContainer(ctx, host.DClient, host.Address, services.KubeAPIContainerName)
if err != nil {
return false, err
}
for _, arg := range kubeAPIInspect.Args {
if strings.Contains(arg, serviceAccountTokenFileParam) &&
strings.Contains(arg, pki.GetKeyPath(pki.KubeAPICertName)) {
return true, nil
}
}
}
return false, nil
}