feat: kubesphere 4.0 (#6115)

* feat: kubesphere 4.0

Signed-off-by: ci-bot <ci-bot@kubesphere.io>

* feat: kubesphere 4.0

Signed-off-by: ci-bot <ci-bot@kubesphere.io>

---------

Signed-off-by: ci-bot <ci-bot@kubesphere.io>
Co-authored-by: ks-ci-bot <ks-ci-bot@example.com>
Co-authored-by: joyceliu <joyceliu@yunify.com>

vendor/k8s.io/apiserver/pkg/server/options/encryptionconfig/metrics/metrics.go

@@ -0,0 +1,111 @@
+/*
+Copyright 2023 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 (
+	"crypto/sha256"
+	"fmt"
+	"hash"
+	"sync"
+
+	"k8s.io/component-base/metrics"
+	"k8s.io/component-base/metrics/legacyregistry"
+)
+
+const (
+	namespace = "apiserver"
+	subsystem = "encryption_config_controller"
+)
+
+var (
+	encryptionConfigAutomaticReloadFailureTotal = metrics.NewCounterVec(
+		&metrics.CounterOpts{
+			Namespace:      namespace,
+			Subsystem:      subsystem,
+			Name:           "automatic_reload_failures_total",
+			Help:           "Total number of failed automatic reloads of encryption configuration split by apiserver identity.",
+			StabilityLevel: metrics.ALPHA,
+		},
+		[]string{"apiserver_id_hash"},
+	)
+
+	encryptionConfigAutomaticReloadSuccessTotal = metrics.NewCounterVec(
+		&metrics.CounterOpts{
+			Namespace:      namespace,
+			Subsystem:      subsystem,
+			Name:           "automatic_reload_success_total",
+			Help:           "Total number of successful automatic reloads of encryption configuration split by apiserver identity.",
+			StabilityLevel: metrics.ALPHA,
+		},
+		[]string{"apiserver_id_hash"},
+	)
+
+	encryptionConfigAutomaticReloadLastTimestampSeconds = metrics.NewGaugeVec(
+		&metrics.GaugeOpts{
+			Namespace:      namespace,
+			Subsystem:      subsystem,
+			Name:           "automatic_reload_last_timestamp_seconds",
+			Help:           "Timestamp of the last successful or failed automatic reload of encryption configuration split by apiserver identity.",
+			StabilityLevel: metrics.ALPHA,
+		},
+		[]string{"status", "apiserver_id_hash"},
+	)
+)
+
+var registerMetrics sync.Once
+var hashPool *sync.Pool
+
+func RegisterMetrics() {
+	registerMetrics.Do(func() {
+		hashPool = &sync.Pool{
+			New: func() interface{} {
+				return sha256.New()
+			},
+		}
+		legacyregistry.MustRegister(encryptionConfigAutomaticReloadFailureTotal)
+		legacyregistry.MustRegister(encryptionConfigAutomaticReloadSuccessTotal)
+		legacyregistry.MustRegister(encryptionConfigAutomaticReloadLastTimestampSeconds)
+	})
+}
+
+func RecordEncryptionConfigAutomaticReloadFailure(apiServerID string) {
+	apiServerIDHash := getHash(apiServerID)
+	encryptionConfigAutomaticReloadFailureTotal.WithLabelValues(apiServerIDHash).Inc()
+	recordEncryptionConfigAutomaticReloadTimestamp("failure", apiServerIDHash)
+}
+
+func RecordEncryptionConfigAutomaticReloadSuccess(apiServerID string) {
+	apiServerIDHash := getHash(apiServerID)
+	encryptionConfigAutomaticReloadSuccessTotal.WithLabelValues(apiServerIDHash).Inc()
+	recordEncryptionConfigAutomaticReloadTimestamp("success", apiServerIDHash)
+}
+
+func recordEncryptionConfigAutomaticReloadTimestamp(result, apiServerIDHash string) {
+	encryptionConfigAutomaticReloadLastTimestampSeconds.WithLabelValues(result, apiServerIDHash).SetToCurrentTime()
+}
+
+func getHash(data string) string {
+	if len(data) == 0 {
+		return ""
+	}
+	h := hashPool.Get().(hash.Hash)
+	h.Reset()
+	h.Write([]byte(data))
+	dataHash := fmt.Sprintf("sha256:%x", h.Sum(nil))
+	hashPool.Put(h)
+	return dataHash
+}