rebase: update kubernetes to 1.26.1

update kubernetes and its dependencies
to v1.26.1

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>

vendor/sigs.k8s.io/controller-runtime/pkg/certwatcher/certwatcher.go

@@ -22,6 +22,7 @@ import (
 	"sync"
 
 	"github.com/fsnotify/fsnotify"
+	"sigs.k8s.io/controller-runtime/pkg/certwatcher/metrics"
 	logf "sigs.k8s.io/controller-runtime/pkg/internal/log"
 )
 
@@ -116,8 +117,10 @@ func (cw *CertWatcher) Watch() {
 // and updates the current certificate on the watcher.  If a callback is set, it
 // is invoked with the new certificate.
 func (cw *CertWatcher) ReadCertificate() error {
+	metrics.ReadCertificateTotal.Inc()
 	cert, err := tls.LoadX509KeyPair(cw.certPath, cw.keyPath)
 	if err != nil {
+		metrics.ReadCertificateErrors.Inc()
 		return err
 	}
 

vendor/sigs.k8s.io/controller-runtime/pkg/certwatcher/metrics/metrics.go

@@ -0,0 +1,45 @@
+/*
+Copyright 2022 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package metrics
+
+import (
+	"github.com/prometheus/client_golang/prometheus"
+	"sigs.k8s.io/controller-runtime/pkg/metrics"
+)
+
+var (
+	// ReadCertificateTotal is a prometheus counter metrics which holds the total
+	// number of certificate reads.
+	ReadCertificateTotal = prometheus.NewCounter(prometheus.CounterOpts{
+		Name: "certwatcher_read_certificate_total",
+		Help: "Total number of certificate reads",
+	})
+
+	// ReadCertificateErrors is a prometheus counter metrics which holds the total
+	// number of errors from certificate read.
+	ReadCertificateErrors = prometheus.NewCounter(prometheus.CounterOpts{
+		Name: "certwatcher_read_certificate_errors_total",
+		Help: "Total number of certificate read errors",
+	})
+)
+
+func init() {
+	metrics.Registry.MustRegister(
+		ReadCertificateTotal,
+		ReadCertificateErrors,
+	)
+}