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autoscaler
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allow setting kuberentes client burst and qps to avoid rate limiting

This commit is contained in:
Michael Grosser 2022-09-29 15:39:05 -07:00
parent 3b2e3db941
commit cd26bcfe60
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2 changed files with 14 additions and 1 deletions
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4
cluster-autoscaler/config/autoscaling_options.go
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@ -168,6 +168,10 @@ type AutoscalingOptions struct {
ConcurrentGceRefreshes int ConcurrentGceRefreshes int
// Path to kube configuration if available // Path to kube configuration if available
KubeConfigPath string 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 // 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. // not use KubeConfigPath as a fallback when it is not provided.
ClusterAPICloudConfigAuthoritative bool ClusterAPICloudConfigAuthoritative bool

11
cluster-autoscaler/main.go
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@ -90,6 +90,8 @@ var (
address = flag.String("address", ":8085", "The address to expose prometheus metrics.") address = flag.String("address", ":8085", "The address to expose prometheus metrics.")
kubernetes = flag.String("kubernetes", "", "Kubernetes master location. Leave blank for default") 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.") kubeConfigFile = flag.String("kubeconfig", "", "Path to kubeconfig file with authorization and master location information.")
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.")
cloudConfig = flag.String("cloud-config", "", "The path to the cloud provider configuration file. Empty string for no configuration file.") 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.") 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.") enforceNodeGroupMinSize = flag.Bool("enforce-node-group-min-size", false, "Should CA scale up the node group to the configured min size if needed.")
@ -290,6 +292,8 @@ func createAutoscalingOptions() config.AutoscalingOptions {
BalancingExtraIgnoredLabels: *balancingIgnoreLabelsFlag, BalancingExtraIgnoredLabels: *balancingIgnoreLabelsFlag,
BalancingLabels: *balancingLabelsFlag, BalancingLabels: *balancingLabelsFlag,
KubeConfigPath: *kubeConfigFile, KubeConfigPath: *kubeConfigFile,
KubeClientBurst: *kubeClientBurst,
KubeClientQPS: *kubeClientQPS,
NodeDeletionDelayTimeout: *nodeDeletionDelayTimeout, NodeDeletionDelayTimeout: *nodeDeletionDelayTimeout,
AWSUseStaticInstanceList: *awsUseStaticInstanceList, AWSUseStaticInstanceList: *awsUseStaticInstanceList,
ConcurrentGceRefreshes: *concurrentGceRefreshes, ConcurrentGceRefreshes: *concurrentGceRefreshes,
@ -362,7 +366,12 @@ func registerSignalHandlers(autoscaler core.Autoscaler) {
func buildAutoscaler(debuggingSnapshotter debuggingsnapshot.DebuggingSnapshotter) (core.Autoscaler, error) { func buildAutoscaler(debuggingSnapshotter debuggingsnapshot.DebuggingSnapshotter) (core.Autoscaler, error) {
// Create basic config from flags. // Create basic config from flags.
autoscalingOptions := createAutoscalingOptions() autoscalingOptions := createAutoscalingOptions()
kubeClient := createKubeClient(getKubeConfig())
kubeClientConfig := getKubeConfig()
kubeClientConfig.Burst = autoscalingOptions.KubeClientBurst
kubeClientConfig.QPS = float32(autoscalingOptions.KubeClientQPS)
kubeClient := createKubeClient(kubeClientConfig)
eventsKubeClient := createKubeClient(getKubeConfig()) eventsKubeClient := createKubeClient(getKubeConfig())
opts := core.AutoscalerOptions{ opts := core.AutoscalerOptions{