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Cleanup: Remove separate client for k8s events #6274

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Nov 14, 2023
Merged

Cleanup: Remove separate client for k8s events #6274

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4 changes: 0 additions & 4 deletions cluster-autoscaler/config/autoscaling_options.go
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Original file line number Diff line number Diff line change
Expand Up @@ -223,10 +223,6 @@ type AutoscalingOptions struct {
GCEOptions GCEOptions
// Path to kube configuration if available
KubeConfigPath string
// Burst setting for kubernetes client
KubeClientBurst int
// QPS setting for kubernetes client
KubeClientQPS float64
// ClusterAPICloudConfigAuthoritative tells the Cluster API provider to treat the CloudConfig option as authoritative and
// not use KubeConfigPath as a fallback when it is not provided.
ClusterAPICloudConfigAuthoritative bool
Expand Down
6 changes: 3 additions & 3 deletions cluster-autoscaler/context/autoscaling_context.go
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Expand Up @@ -128,15 +128,15 @@ func NewAutoscalingContext(
}

// NewAutoscalingKubeClients builds AutoscalingKubeClients out of basic client.
func NewAutoscalingKubeClients(opts config.AutoscalingOptions, kubeClient, eventsKubeClient kube_client.Interface, informerFactory informers.SharedInformerFactory) *AutoscalingKubeClients {
func NewAutoscalingKubeClients(opts config.AutoscalingOptions, kubeClient kube_client.Interface, informerFactory informers.SharedInformerFactory) *AutoscalingKubeClients {
listerRegistry := kube_util.NewListerRegistryWithDefaultListers(informerFactory)
kubeEventRecorder := kube_util.CreateEventRecorder(eventsKubeClient, opts.RecordDuplicatedEvents)
kubeEventRecorder := kube_util.CreateEventRecorder(kubeClient, opts.RecordDuplicatedEvents)
logRecorder, err := utils.NewStatusMapRecorder(kubeClient, opts.ConfigNamespace, kubeEventRecorder, opts.WriteStatusConfigMap, opts.StatusConfigMapName)
if err != nil {
klog.Error("Failed to initialize status configmap, unable to write status events")
// Get a dummy, so we can at least safely call the methods
// TODO(maciekpytel): recover from this after successful status configmap update?
logRecorder, _ = utils.NewStatusMapRecorder(eventsKubeClient, opts.ConfigNamespace, kubeEventRecorder, false, opts.StatusConfigMapName)
logRecorder, _ = utils.NewStatusMapRecorder(kubeClient, opts.ConfigNamespace, kubeEventRecorder, false, opts.StatusConfigMapName)
}

return &AutoscalingKubeClients{
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3 changes: 1 addition & 2 deletions cluster-autoscaler/core/autoscaler.go
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Expand Up @@ -45,7 +45,6 @@ import (
type AutoscalerOptions struct {
config.AutoscalingOptions
KubeClient kube_client.Interface
EventsKubeClient kube_client.Interface
InformerFactory informers.SharedInformerFactory
AutoscalingKubeClients *context.AutoscalingKubeClients
CloudProvider cloudprovider.CloudProvider
Expand Down Expand Up @@ -103,7 +102,7 @@ func initializeDefaultOptions(opts *AutoscalerOptions) error {
opts.Processors = ca_processors.DefaultProcessors(opts.AutoscalingOptions)
}
if opts.AutoscalingKubeClients == nil {
opts.AutoscalingKubeClients = context.NewAutoscalingKubeClients(opts.AutoscalingOptions, opts.KubeClient, opts.EventsKubeClient, opts.InformerFactory)
opts.AutoscalingKubeClients = context.NewAutoscalingKubeClients(opts.AutoscalingOptions, opts.KubeClient, opts.InformerFactory)
}
if opts.ClusterSnapshot == nil {
opts.ClusterSnapshot = clustersnapshot.NewBasicClusterSnapshot()
Expand Down
14 changes: 3 additions & 11 deletions cluster-autoscaler/main.go
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Expand Up @@ -103,8 +103,8 @@ var (
kubernetes = flag.String("kubernetes", "", "Kubernetes master location. Leave blank for default")
kubeConfigFile = flag.String("kubeconfig", "", "Path to kubeconfig file with authorization and master location information.")
kubeAPIContentType = flag.String("kube-api-content-type", "application/vnd.kubernetes.protobuf", "Content type of requests sent to apiserver.")
kubeClientBurst = flag.Int("kube-client-burst", rest.DefaultBurst, "Burst value for kubernetes client.")
kubeClientQPS = flag.Float64("kube-client-qps", float64(rest.DefaultQPS), "QPS value for kubernetes client.")
_ = flag.Int("kube-client-burst", rest.DefaultBurst, "Burst value for kubernetes client. (Deprecated, relay on APF for rate limiting)")
_ = flag.Float64("kube-client-qps", float64(rest.DefaultQPS), "QPS value for kubernetes client. (Deprecated, relay on APF for rate limiting)")
cloudConfig = flag.String("cloud-config", "", "The path to the cloud provider configuration file. Empty string for no configuration file.")
namespace = flag.String("namespace", "kube-system", "Namespace in which cluster-autoscaler run.")
enforceNodeGroupMinSize = flag.Bool("enforce-node-group-min-size", false, "Should CA scale up the node group to the configured min size if needed.")
Expand Down Expand Up @@ -354,8 +354,6 @@ func createAutoscalingOptions() config.AutoscalingOptions {
BalancingExtraIgnoredLabels: *balancingIgnoreLabelsFlag,
BalancingLabels: *balancingLabelsFlag,
KubeConfigPath: *kubeConfigFile,
KubeClientBurst: *kubeClientBurst,
KubeClientQPS: *kubeClientQPS,
NodeDeletionDelayTimeout: *nodeDeletionDelayTimeout,
AWSUseStaticInstanceList: *awsUseStaticInstanceList,
GCEOptions: config.GCEOptions{
Expand Down Expand Up @@ -441,10 +439,7 @@ func buildAutoscaler(debuggingSnapshotter debuggingsnapshot.DebuggingSnapshotter
// Create basic config from flags.
autoscalingOptions := createAutoscalingOptions()

kubeClientConfig := getKubeConfig()
kubeClientConfig.Burst = autoscalingOptions.KubeClientBurst
kubeClientConfig.QPS = float32(autoscalingOptions.KubeClientQPS)
kubeClient := createKubeClient(kubeClientConfig)
kubeClient := createKubeClient(getKubeConfig())

// Informer transform to trim ManagedFields for memory efficiency.
trim := func(obj interface{}) (interface{}, error) {
Expand All @@ -455,8 +450,6 @@ func buildAutoscaler(debuggingSnapshotter debuggingsnapshot.DebuggingSnapshotter
}
informerFactory := informers.NewSharedInformerFactoryWithOptions(kubeClient, 0, informers.WithTransform(trim))

eventsKubeClient := createKubeClient(getKubeConfig())

predicateChecker, err := predicatechecker.NewSchedulerBasedPredicateChecker(informerFactory, autoscalingOptions.SchedulerConfig)
if err != nil {
return nil, err
Expand All @@ -469,7 +462,6 @@ func buildAutoscaler(debuggingSnapshotter debuggingsnapshot.DebuggingSnapshotter
ClusterSnapshot: clustersnapshot.NewDeltaClusterSnapshot(),
KubeClient: kubeClient,
InformerFactory: informerFactory,
EventsKubeClient: eventsKubeClient,
DebuggingSnapshotter: debuggingSnapshotter,
PredicateChecker: predicateChecker,
DeleteOptions: deleteOptions,
Expand Down
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