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Allow customization of client-go throttling #525

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merged 2 commits into from
Oct 5, 2023
Merged

Allow customization of client-go throttling #525

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d66283c
Allow customization of client-go throttling
gottwald Oct 2, 2023
3e2bcc7
Remove default values form flag help
gottwald Oct 3, 2023
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10 changes: 9 additions & 1 deletion main.go
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Original file line number Diff line number Diff line change
Expand Up @@ -80,6 +80,8 @@ var (
profilerAddress string
webhookPort int
enableLeaderElection bool
restConfigQPS float32
restConfigBurst int
)

func initFlags(fs *pflag.FlagSet) {
Expand All @@ -95,6 +97,8 @@ func initFlags(fs *pflag.FlagSet) {
fs.DurationVar(&syncPeriod, "sync-period", 10*time.Minute, "The minimum interval at which watched resources are reconciled (e.g. 10m)")
fs.IntVar(&webhookPort, "webhook-port", 9443, "Webhook Server port, disabled by default. When enabled, the manager will only work as webhook server, no reconcilers are installed.")
fs.DurationVar(&reconcileTimeout, "reconcile-timeout", reconciler.DefaultLoopTimeout, "The maximum duration a reconcile loop can run (e.g. 90m)")
fs.Float32Var(&restConfigQPS, "kube-api-qps", 20, "Maximum queries per second from the controller client to the Kubernetes API server.")
fs.IntVar(&restConfigBurst, "kube-api-burst", 30, "Maximum number of queries that should be allowed in one burst from the controller client to the Kubernetes API server.")
}

func main() {
Expand Down Expand Up @@ -134,7 +138,11 @@ func main() {
BurstSize: 100,
})

mgr, err := ctrl.NewManager(ctrl.GetConfigOrDie(), ctrl.Options{
restConfig := ctrl.GetConfigOrDie()
restConfig.QPS = restConfigQPS
restConfig.Burst = restConfigBurst

mgr, err := ctrl.NewManager(restConfig, ctrl.Options{
Scheme: scheme,
MetricsBindAddress: metricsAddr,
LeaderElection: enableLeaderElection,
Expand Down