UPSTREAM: <carry>: Fix leaderelection settings

This is a manual backport of #249
to fix leaderelection settings

Signed-off-by: Lalatendu Mohanty <[email protected]>

Author: LalatenduMohanty

cmd/manager/main.go

@@ -39,6 +39,7 @@ import (
 	_ "k8s.io/client-go/plugin/pkg/client/auth"
 	"k8s.io/klog/v2"
 	"k8s.io/klog/v2/textlogger"
+	"k8s.io/utils/ptr"
 	ctrl "sigs.k8s.io/controller-runtime"
 	crcache "sigs.k8s.io/controller-runtime/pkg/cache"
 	"sigs.k8s.io/controller-runtime/pkg/client"
@@ -167,7 +168,13 @@ func main() {
 		HealthProbeBindAddress: probeAddr,
 		LeaderElection:         enableLeaderElection,
 		LeaderElectionID:       "9c4404e7.operatorframework.io",
-		Cache:                  cacheOptions,
+		// Recommended Leader Election values
+		// https://github.com/openshift/enhancements/blob/61581dcd985130357d6e4b0e72b87ee35394bf6e/CONVENTIONS.md#handling-kube-apiserver-disruption
+		LeaseDuration: ptr.To(137 * time.Second),
+		RenewDeadline: ptr.To(107 * time.Second),
+		RetryPeriod:   ptr.To(26 * time.Second),
+
+		Cache: cacheOptions,
 		// LeaderElectionReleaseOnCancel defines if the leader should step down voluntarily
 		// when the Manager ends. This requires the binary to immediately end when the
 		// Manager is stopped, otherwise, this setting is unsafe. Setting this significantly