Add metrics-server installation

README.md

@@ -189,6 +189,12 @@ Win: %UserProfile%\.kube\config
 
 点击登陆，进入Kubernetes Dashboard
 
+#### 部署 Kubernetes metrics server (可选)
+
+```shell
+kubectl apply -f kubernetes-metrics-server.yaml
+```
+
 ### 配置 Ingress
 
 说明：如果测试 Istio，不需要安装 Ingress

README_en.md

@@ -181,6 +181,12 @@ Mac: $HOME/.kube/config
 
 Click login, go to Kubernetes Dashboard
 
+#### Install Kubernetes metrics server (Optional)
+
+```shell
+kubectl apply -f kubernetes-metrics-server.yaml
+```
+
 ### Config Ingress
 
 Note: If you are testing Istio, donot need to install Ingress

images.properties

@@ -3,6 +3,7 @@ k8s.gcr.io/kube-controller-manager:v1.25.4=registry.cn-hangzhou.aliyuncs.com/goo
 k8s.gcr.io/kube-scheduler:v1.25.4=registry.cn-hangzhou.aliyuncs.com/google_containers/kube-scheduler:v1.25.4
 k8s.gcr.io/kube-proxy:v1.25.4=registry.cn-hangzhou.aliyuncs.com/google_containers/kube-proxy:v1.25.4
 k8s.gcr.io/kube-apiserver:v1.25.4=registry.cn-hangzhou.aliyuncs.com/google_containers/kube-apiserver:v1.25.4
+k8s.gcr.io/metrics-server/metrics-server:v0.6.2=registry.cn-hangzhou.aliyuncs.com/google_containers/metrics-server:v0.6.2
 k8s.gcr.io/etcd:3.5.5-0=registry.cn-hangzhou.aliyuncs.com/google_containers/etcd:3.5.5-0
 k8s.gcr.io/coredns/coredns:v1.9.3=registry.cn-hangzhou.aliyuncs.com/google_containers/coredns:v1.9.3
 registry.k8s.io/ingress-nginx/controller:v1.5.1=registry.cn-hangzhou.aliyuncs.com/google_containers/nginx-ingress-controller:v1.5.1

kubernetes-metrics-server.yaml

@@ -0,0 +1,197 @@
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  labels:
+    k8s-app: metrics-server
+  name: metrics-server
+  namespace: kube-system
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  labels:
+    k8s-app: metrics-server
+    rbac.authorization.k8s.io/aggregate-to-admin: "true"
+    rbac.authorization.k8s.io/aggregate-to-edit: "true"
+    rbac.authorization.k8s.io/aggregate-to-view: "true"
+  name: system:aggregated-metrics-reader
+rules:
+- apiGroups:
+  - metrics.k8s.io
+  resources:
+  - pods
+  - nodes
+  verbs:
+  - get
+  - list
+  - watch
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  labels:
+    k8s-app: metrics-server
+  name: system:metrics-server
+rules:
+- apiGroups:
+  - ""
+  resources:
+  - nodes/metrics
+  verbs:
+  - get
+- apiGroups:
+  - ""
+  resources:
+  - pods
+  - nodes
+  verbs:
+  - get
+  - list
+  - watch
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  labels:
+    k8s-app: metrics-server
+  name: metrics-server-auth-reader
+  namespace: kube-system
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: extension-apiserver-authentication-reader
+subjects:
+- kind: ServiceAccount
+  name: metrics-server
+  namespace: kube-system
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  labels:
+    k8s-app: metrics-server
+  name: metrics-server:system:auth-delegator
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: system:auth-delegator
+subjects:
+- kind: ServiceAccount
+  name: metrics-server
+  namespace: kube-system
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  labels:
+    k8s-app: metrics-server
+  name: system:metrics-server
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: system:metrics-server
+subjects:
+- kind: ServiceAccount
+  name: metrics-server
+  namespace: kube-system
+---
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    k8s-app: metrics-server
+  name: metrics-server
+  namespace: kube-system
+spec:
+  ports:
+  - name: https
+    port: 443
+    protocol: TCP
+    targetPort: https
+  selector:
+    k8s-app: metrics-server
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  labels:
+    k8s-app: metrics-server
+  name: metrics-server
+  namespace: kube-system
+spec:
+  selector:
+    matchLabels:
+      k8s-app: metrics-server
+  strategy:
+    rollingUpdate:
+      maxUnavailable: 0
+  template:
+    metadata:
+      labels:
+        k8s-app: metrics-server
+    spec:
+      containers:
+      - args:
+        - --cert-dir=/tmp
+        - --secure-port=4443
+        - --kubelet-insecure-tls
+        - --kubelet-preferred-address-types=InternalIP,ExternalIP,Hostname
+        - --kubelet-use-node-status-port
+        - --metric-resolution=15s
+        image: k8s.gcr.io/metrics-server/metrics-server:v0.6.2
+        imagePullPolicy: IfNotPresent
+        livenessProbe:
+          failureThreshold: 3
+          httpGet:
+            path: /livez
+            port: https
+            scheme: HTTPS
+          periodSeconds: 10
+        name: metrics-server
+        ports:
+        - containerPort: 4443
+          name: https
+          protocol: TCP
+        readinessProbe:
+          failureThreshold: 3
+          httpGet:
+            path: /readyz
+            port: https
+            scheme: HTTPS
+          initialDelaySeconds: 20
+          periodSeconds: 10
+        resources:
+          requests:
+            cpu: 100m
+            memory: 200Mi
+        securityContext:
+          allowPrivilegeEscalation: false
+          readOnlyRootFilesystem: true
+          runAsNonRoot: true
+          runAsUser: 1000
+        volumeMounts:
+        - mountPath: /tmp
+          name: tmp-dir
+      nodeSelector:
+        kubernetes.io/os: linux
+      priorityClassName: system-cluster-critical
+      serviceAccountName: metrics-server
+      volumes:
+      - emptyDir: {}
+        name: tmp-dir
+---
+apiVersion: apiregistration.k8s.io/v1
+kind: APIService
+metadata:
+  labels:
+    k8s-app: metrics-server
+  name: v1beta1.metrics.k8s.io
+spec:
+  group: metrics.k8s.io
+  groupPriorityMinimum: 100
+  insecureSkipTLSVerify: true
+  service:
+    name: metrics-server
+    namespace: kube-system
+  version: v1beta1
+  versionPriority: 100