feat: support install metrics adapter with chart

charts/karmada/templates/_helpers.tpl

@@ -62,6 +62,24 @@ app: {{- include "karmada.name" .}}-aggregated-apiserver
 {{- end }}
 {{- end -}}
 
+{{- define "karmada.metricsAdapter.labels" -}}
+{{- if .Values.metricsAdapter.labels }}
+{{- range $key, $value := .Values.metricsAdapter.labels }}
+{{ $key }}: {{ $value }}
+{{- end }}
+{{- else}}
+app: {{- include "karmada.name" .}}-metrics-adapter
+{{- end }}
+{{- end -}}
+
+{{- define "karmada.metricsAdapter.podLabels" -}}
+{{- if .Values.metricsAdapter.podLabels }}
+{{- range $key, $value := .Values.metricsAdapter.podLabels }}
+{{ $key }}: {{ $value }}
+{{- end }}
+{{- end }}
+{{- end -}}
+
 {{- define "karmada.kube-cm.labels" -}}
 {{- if .Values.kubeControllerManager.labels }}
 {{- range $key, $value := .Values.kubeControllerManager.labels }}
@@ -422,6 +440,20 @@ Return the proper Docker Image Registry Secret Names
 {{ include "common.images.pullSecrets" (dict "images" (list .Values.aggregatedApiServer.image) "global" .Values.global) }}
 {{- end -}}
 
+{{/*
+Return the proper karmada metricsAdapter image name
+*/}}
+{{- define "karmada.metricsAdapter.image" -}}
+{{ include "common.images.image" (dict "imageRoot" .Values.metricsAdapter.image "global" .Values.global) }}
+{{- end -}}
+
+{{/*
+Return the proper Docker Image Registry Secret Names
+*/}}
+{{- define "karmada.metricsAdapter.imagePullSecrets" -}}
+{{ include "common.images.pullSecrets" (dict "images" (list .Values.metricsAdapter.image) "global" .Values.global) }}
+{{- end -}}
+
 {{/*
 Return the proper karmada search image name
 */}}

charts/karmada/templates/_karmada_apiservice.tpl

@@ -28,6 +28,66 @@ metadata:
 spec:
   type: ExternalName
   externalName: {{ $name }}-aggregated-apiserver.{{ include "karmada.namespace" . }}.svc.{{ .Values.clusterDomain }}
+---
+apiVersion: apiregistration.k8s.io/v1
+kind: APIService
+metadata:
+  name: v1beta1.metrics.k8s.io
+  labels:
+    app: {{ $name }}-metrics-adapter
+    apiserver: "true"
+spec:
+  {{- include "karmada.apiserver.caBundle" . | nindent 2 }}
+  group: metrics.k8s.io
+  groupPriorityMinimum: 100
+  service:
+    name: {{ $name }}-metrics-adapter
+    namespace: {{ $systemNamespace }}
+  version: v1beta1
+  versionPriority: 200
+---
+apiVersion: apiregistration.k8s.io/v1
+kind: APIService
+metadata:
+  name: v1beta2.custom.metrics.k8s.io
+  labels:
+    app: {{ $name }}-metrics-adapter
+    apiserver: "true"
+spec:
+  {{- include "karmada.apiserver.caBundle" . | nindent 2 }}
+  group: custom.metrics.k8s.io
+  groupPriorityMinimum: 100
+  service:
+    name: {{ $name }}-metrics-adapter
+    namespace: {{ $systemNamespace }}
+  version: v1beta2
+  versionPriority: 200
+---
+apiVersion: apiregistration.k8s.io/v1
+kind: APIService
+metadata:
+  name: v1beta1.custom.metrics.k8s.io
+  labels:
+    app: {{ $name }}-metrics-adapter
+    apiserver: "true"
+spec:
+  {{- include "karmada.apiserver.caBundle" . | nindent 2 }}
+  group: custom.metrics.k8s.io
+  groupPriorityMinimum: 100
+  service:
+    name: {{ $name }}-metrics-adapter
+    namespace: {{ $systemNamespace }}
+  version: v1beta1
+  versionPriority: 200
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ $name }}-metrics-adapter
+  namespace: {{ $systemNamespace }}
+spec:
+  type: ExternalName
+  externalName: {{ $name }}-metrics-adapter.{{ include "karmada.namespace" . }}.svc.{{ .Values.clusterDomain }}
 {{- end }}
 {{- if has "search" .Values.components }}
 ---

charts/karmada/templates/karmada-metrics-adapter.yaml

@@ -0,0 +1,119 @@
+{{- if eq .Values.installMode "host" }}
+{{- $name := include "karmada.name" . -}}
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ $name }}-metrics-adapter
+  namespace: {{ include "karmada.namespace" . }}
+  labels:
+    {{- include "karmada.metricsAdapter.labels" . | nindent 4 }}
+spec:
+  selector:
+    matchLabels:
+      {{- include "karmada.metricsAdapter.labels" . | nindent 6 }}
+  replicas: {{ .Values.metricsAdapter.replicaCount }}
+  {{- with .Values.metricsAdapter.strategy }}
+  strategy:
+  {{- toYaml . | nindent 4 }}
+  {{- end }}
+  template:
+    metadata:
+      {{- with .Values.metricsAdapter.podAnnotations }}
+      annotations:
+      {{- toYaml . | nindent 8 }}
+      {{- end }}
+      labels:
+        {{- include "karmada.metricsAdapter.labels" . | nindent 8 }}
+        {{- include "karmada.metricsAdapter.podLabels" . | nindent 8 }}
+    spec:
+      {{- include "karmada.metricsAdapter.imagePullSecrets" . | nindent 6 }}
+      automountServiceAccountToken: false
+      containers:
+        - name: {{ $name }}-aggregated-apiserver
+          image: {{ template "karmada.metricsAdapter.image" . }}
+          imagePullPolicy: {{ .Values.metricsAdapter.image.pullPolicy }}
+          volumeMounts:
+            {{- include "karmada.kubeconfig.volumeMount" . | nindent 12 }}
+            - name: apiserver-cert
+              mountPath: /etc/kubernetes/pki
+              readOnly: true
+          command:
+            - /bin/karmada-metrics-adapter
+            - --kubeconfig=/etc/kubeconfig
+            - --authentication-kubeconfig=/etc/kubeconfig
+            - --authorization-kubeconfig=/etc/kubeconfig
+            - --tls-cert-file=/etc/kubernetes/pki/karmada.crt
+            - --tls-private-key-file=/etc/kubernetes/pki/karmada.key
+            - --audit-log-path=-
+            - --audit-log-maxage=0
+            - --audit-log-maxbackup=0
+            - --tls-min-version=VersionTLS13
+          resources:
+            {{- toYaml .Values.metricsAdapter.resources | nindent 12 }}
+          readinessProbe:
+            httpGet:
+              path: /readyz
+              port: 443
+              scheme: HTTPS
+            initialDelaySeconds: 1
+            periodSeconds: 3
+            timeoutSeconds: 15
+          livenessProbe:
+            httpGet:
+              path: /healthz
+              port: 443
+              scheme: HTTPS
+            initialDelaySeconds: 10
+            periodSeconds: 10
+            timeoutSeconds: 15
+      {{- with .Values.metricsAdapter.nodeSelector }}
+      nodeSelector:
+      {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.metricsAdapter.affinity }}
+      affinity:
+      {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.metricsAdapter.tolerations }}
+      tolerations:
+      {{- toYaml . | nindent 8 }}
+      {{- end }}
+      volumes:
+        {{- include "karmada.kubeconfig.volume" . | nindent 8 }}
+        - name: apiserver-cert
+          secret:
+            secretName: {{ $name }}-cert
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ $name }}-metrics-adapter
+  namespace: {{ include "karmada.namespace" . }}
+  labels:
+    {{- include "karmada.metricsAdapter.labels" . | nindent 4 }}
+spec:
+  ports:
+    - port: 443
+      protocol: TCP
+      targetPort: 443
+  selector:
+    {{- include "karmada.metricsAdapter.labels" . | nindent 4 }}
+
+{{ if and .Values.metricsAdapter .Values.metricsAdapter.podDisruptionBudget }}
+---
+apiVersion: policy/v1
+kind: PodDisruptionBudget
+metadata:
+  name: {{ $name }}-metrics-adapter
+  namespace: {{ include "karmada.namespace" . }}
+  labels:
+    {{- include "karmada.metricsAdapter.labels" . | nindent 4 }}
+spec:
+  selector:
+    matchLabels:
+      {{- include "karmada.metricsAdapter.labels" . | nindent 6 }}
+  {{ toYaml .Values.metricsAdapter.podDisruptionBudget | nindent 2 }}
+{{- end -}}
+
+{{- end }}

charts/karmada/values.yaml

@@ -469,6 +469,67 @@ aggregatedApiServer:
   ## @param apiServer.podDisruptionBudget
   podDisruptionBudget: *podDisruptionBudget
 
+## karmada metrics adapter config
+metricsAdapter:
+  ## @param metricsAdapter.labels labels of the karmada-metrics-adapter pods
+  labels:
+    app: karmada-metrics-adapter
+  ## @param metricsAadpter.replicaCount target replicas of the karmada-mertics-adapter
+  replicaCount: 1
+  ## @param metricsAadpter.podAnnotations annotations of the karmada-mertics-adapter pods
+  podAnnotations: {}
+  ## @param metricsAadpter.podLabels labels of the karmada-mertics-adapter pods
+  podLabels: {}
+  ## @param image.registry karmada metricsAadpter image registry
+  ## @param image.repository karmada metricsAadpter image repository
+  ## @param image.tag karmada metricsAadpter image tag (immutable tags are recommended)
+  ## @param image.pullPolicy karmada metricsAadpter image pull policy
+  ## @param image.pullSecrets Specify docker-registry secret names as an array
+  ##
+  image:
+    registry: docker.io
+    repository: karmada/karmada-metrics-adapter
+    tag: *karmadaImageVersion
+    ## Specify a imagePullPolicy
+    ## Defaults to 'Always' if image tag is 'latest', else set to 'IfNotPresent'
+    ##
+    pullPolicy: Always
+    ## Optionally specify an array of imagePullSecrets.
+    ## Secrets must be manually created in the namespace.
+    ## Example:
+    ## pullSecrets:
+    ##   - myRegistryKeySecretName
+    ##
+    pullSecrets: []
+  ## @param metricsAadpter.resources resource quota of the karmada-mertics-adapter
+  resources:
+    requests:
+      cpu: 100m
+    # If you do want to specify resources, uncomment the following
+    # lines, adjust them as necessary, and remove the curly braces after 'resources:'.
+    # limits:
+    #   cpu: 100m
+    #   memory: 128Mi
+    # requests:
+    #   cpu: 100m
+    #   memory: 128Mi
+  ## @param metricsAadpter.nodeSelector node selector of the karmada-mertics-adapter
+  nodeSelector: {}
+  ## @param metricsAadpter.affinity affinity of the karmada-mertics-adapter
+  affinity: {}
+  ## @param metricsAadpter.tolerations tolerations of the karmada-mertics-adapter
+  tolerations: []
+    # - key: node-role.kubernetes.io/master
+    #   operator: Exists
+  ## @param metricsAadpter.strategy strategy of the karmada-mertics-adapter
+  strategy:
+    type: RollingUpdate
+    rollingUpdate:
+      maxUnavailable: 0
+      maxSurge: 50%
+  ## @param apiServer.podDisruptionBudget
+  podDisruptionBudget: *podDisruptionBudget
+
 ## kubernetes controller manager config
 kubeControllerManager:
   ## @param kubeControllerManager.labels labels of the kube-controller-manager deployment