upgrade VPA to latest for kubernetes 1.30

kubernetes/autoscaling/components/metric-server/components.yaml

@@ -1,153 +1,202 @@
----
+apiVersion: v1
-apiVersion: rbac.authorization.k8s.io/v1
+kind: ServiceAccount
-kind: ClusterRole
+metadata:
-metadata:
+  labels:
-  name: system:aggregated-metrics-reader
+    k8s-app: metrics-server
-  labels:
+  name: metrics-server
-    rbac.authorization.k8s.io/aggregate-to-view: "true"
+  namespace: kube-system
-    rbac.authorization.k8s.io/aggregate-to-edit: "true"
+---
-    rbac.authorization.k8s.io/aggregate-to-admin: "true"
+apiVersion: rbac.authorization.k8s.io/v1
-rules:
+kind: ClusterRole
-- apiGroups: ["metrics.k8s.io"]
+metadata:
-  resources: ["pods", "nodes"]
+  labels:
-  verbs: ["get", "list", "watch"]
+    k8s-app: metrics-server
----
+    rbac.authorization.k8s.io/aggregate-to-admin: "true"
-apiVersion: rbac.authorization.k8s.io/v1
+    rbac.authorization.k8s.io/aggregate-to-edit: "true"
-kind: ClusterRoleBinding
+    rbac.authorization.k8s.io/aggregate-to-view: "true"
-metadata:
+  name: system:aggregated-metrics-reader
-  name: metrics-server:system:auth-delegator
+rules:
-roleRef:
+- apiGroups:
-  apiGroup: rbac.authorization.k8s.io
+  - metrics.k8s.io
-  kind: ClusterRole
+  resources:
-  name: system:auth-delegator
+  - pods
-subjects:
+  - nodes
-- kind: ServiceAccount
+  verbs:
-  name: metrics-server
+  - get
-  namespace: kube-system
+  - list
----
+  - watch
-apiVersion: rbac.authorization.k8s.io/v1
+---
-kind: RoleBinding
+apiVersion: rbac.authorization.k8s.io/v1
-metadata:
+kind: ClusterRole
-  name: metrics-server-auth-reader
+metadata:
-  namespace: kube-system
+  labels:
-roleRef:
+    k8s-app: metrics-server
-  apiGroup: rbac.authorization.k8s.io
+  name: system:metrics-server
-  kind: Role
+rules:
-  name: extension-apiserver-authentication-reader
+- apiGroups:
-subjects:
+  - ""
-- kind: ServiceAccount
+  resources:
-  name: metrics-server
+  - nodes/metrics
-  namespace: kube-system
+  verbs:
----
+  - get
-apiVersion: apiregistration.k8s.io/v1beta1
+- apiGroups:
-kind: APIService
+  - ""
-metadata:
+  resources:
-  name: v1beta1.metrics.k8s.io
+  - pods
-spec:
+  - nodes
-  service:
+  verbs:
-    name: metrics-server
+  - get
-    namespace: kube-system
+  - list
-  group: metrics.k8s.io
+  - watch
-  version: v1beta1
+---
-  insecureSkipTLSVerify: true
+apiVersion: rbac.authorization.k8s.io/v1
-  groupPriorityMinimum: 100
+kind: RoleBinding
-  versionPriority: 100
+metadata:
----
+  labels:
-apiVersion: v1
+    k8s-app: metrics-server
-kind: ServiceAccount
+  name: metrics-server-auth-reader
-metadata:
+  namespace: kube-system
-  name: metrics-server
+roleRef:
-  namespace: kube-system
+  apiGroup: rbac.authorization.k8s.io
----
+  kind: Role
-apiVersion: apps/v1
+  name: extension-apiserver-authentication-reader
-kind: Deployment
+subjects:
-metadata:
+- kind: ServiceAccount
-  name: metrics-server
+  name: metrics-server
-  namespace: kube-system
+  namespace: kube-system
-  labels:
+---
-    k8s-app: metrics-server
+apiVersion: rbac.authorization.k8s.io/v1
-spec:
+kind: ClusterRoleBinding
-  selector:
+metadata:
-    matchLabels:
+  labels:
-      k8s-app: metrics-server
+    k8s-app: metrics-server
-  template:
+  name: metrics-server:system:auth-delegator
-    metadata:
+roleRef:
-      name: metrics-server
+  apiGroup: rbac.authorization.k8s.io
-      labels:
+  kind: ClusterRole
-        k8s-app: metrics-server
+  name: system:auth-delegator
-    spec:
+subjects:
-      serviceAccountName: metrics-server
+- kind: ServiceAccount
-      volumes:
+  name: metrics-server
-      # mount in tmp so we can safely use from-scratch images and/or read-only containers
+  namespace: kube-system
-      - name: tmp-dir
+---
-        emptyDir: {}
+apiVersion: rbac.authorization.k8s.io/v1
-      containers:
+kind: ClusterRoleBinding
-      - name: metrics-server
+metadata:
-        image: k8s.gcr.io/metrics-server/metrics-server:v0.3.7
+  labels:
-        imagePullPolicy: IfNotPresent
+    k8s-app: metrics-server
-        args:
+  name: system:metrics-server
-          - --cert-dir=/tmp
+roleRef:
-          - --secure-port=4443
+  apiGroup: rbac.authorization.k8s.io
-          - --kubelet-insecure-tls #remove these for production: only used for kind
+  kind: ClusterRole
-          - --kubelet-preferred-address-types="InternalIP" #remove these for production: only used for kind
+  name: system:metrics-server
-        ports:
+subjects:
-        - name: main-port
+- kind: ServiceAccount
-          containerPort: 4443
+  name: metrics-server
-          protocol: TCP
+  namespace: kube-system
-        securityContext:
+---
-          readOnlyRootFilesystem: true
+apiVersion: v1
-          runAsNonRoot: true
+kind: Service
-          runAsUser: 1000
+metadata:
-        volumeMounts:
+  labels:
-        - name: tmp-dir
+    k8s-app: metrics-server
-          mountPath: /tmp
+  name: metrics-server
-      nodeSelector:
+  namespace: kube-system
-        kubernetes.io/os: linux
+spec:
-        kubernetes.io/arch: "amd64"
+  ports:
----
+  - name: https
-apiVersion: v1
+    port: 443
-kind: Service
+    protocol: TCP
-metadata:
+    targetPort: https
-  name: metrics-server
+  selector:
-  namespace: kube-system
+    k8s-app: metrics-server
-  labels:
+---
-    kubernetes.io/name: "Metrics-server"
+apiVersion: apps/v1
-    kubernetes.io/cluster-service: "true"
+kind: Deployment
-spec:
+metadata:
-  selector:
+  labels:
-    k8s-app: metrics-server
+    k8s-app: metrics-server
-  ports:
+  name: metrics-server
-  - port: 443
+  namespace: kube-system
-    protocol: TCP
+spec:
-    targetPort: main-port
+  selector:
----
+    matchLabels:
-apiVersion: rbac.authorization.k8s.io/v1
+      k8s-app: metrics-server
-kind: ClusterRole
+  strategy:
-metadata:
+    rollingUpdate:
-  name: system:metrics-server
+      maxUnavailable: 0
-rules:
+  template:
-- apiGroups:
+    metadata:
-  - ""
+      labels:
-  resources:
+        k8s-app: metrics-server
-  - pods
+    spec:
-  - nodes
+      containers:
-  - nodes/stats
+      - args:
-  - namespaces
+        - --cert-dir=/tmp
-  - configmaps
+        - --secure-port=10250
-  verbs:
+        - --kubelet-insecure-tls #remove these for production: only used for kind
-  - get
+        - --kubelet-preferred-address-types=InternalIP,ExternalIP,Hostname
-  - list
+        - --kubelet-use-node-status-port
-  - watch
+        - --metric-resolution=15s
----
+        image: registry.k8s.io/metrics-server/metrics-server:v0.7.2
-apiVersion: rbac.authorization.k8s.io/v1
+        imagePullPolicy: IfNotPresent
-kind: ClusterRoleBinding
+        livenessProbe:
-metadata:
+          failureThreshold: 3
-  name: system:metrics-server
+          httpGet:
-roleRef:
+            path: /livez
-  apiGroup: rbac.authorization.k8s.io
+            port: https
-  kind: ClusterRole
+            scheme: HTTPS
-  name: system:metrics-server
+          periodSeconds: 10
-subjects:
+        name: metrics-server
-- kind: ServiceAccount
+        ports:
-  name: metrics-server
+        - containerPort: 10250
-  namespace: kube-system
+          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
+          capabilities:
+            drop:
+            - ALL
+          readOnlyRootFilesystem: true
+          runAsNonRoot: true
+          runAsUser: 1000
+          seccompProfile:
+            type: RuntimeDefault
+        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

kubernetes/autoscaling/vertical-pod-autoscaling/readme.md

@@ -7,7 +7,7 @@
 Lets create a Kubernetes cluster to play with using [kind](https://kind.sigs.k8s.io/docs/user/quick-start/)
 
 ```
-kind create cluster --name vpa --image kindest/node:v1.19.1
+kind create cluster --name vpa --image kindest/node:v1.30.4
 ```
 <hr/>
 
@@ -20,8 +20,8 @@ kind create cluster --name vpa --image kindest/node:v1.19.1
 
 [Metric Server](https://github.com/kubernetes-sigs/metrics-server) provides container resource metrics for use in autoscaling pipelines <br/>
 
-Because I run K8s `1.19` in `kind`, the Metric Server version i need is `0.3.7` <br/>
+Because I run K8s `1.30` in `kind`, the Metric Server version i need is `0.7.2` <br/>
-We will need to deploy Metric Server [0.3.7](https://github.com/kubernetes-sigs/metrics-server/releases/tag/v0.3.7) <br/>
+We will need to deploy Metric Server [0.7.2](https://github.com/kubernetes-sigs/metrics-server/releases/tag/v0.7.2) <br/>
 I used `components.yaml`from the release page link above. <br/>
 
 <b>Important Note</b> : For Demo clusters (like `kind`), you will need to disable TLS <br/>
@@ -31,15 +31,13 @@ You can disable TLS by adding the following to the metrics-server container args
 
 ```
 - --kubelet-insecure-tls
-- --kubelet-preferred-address-types="InternalIP"
-
 ```
 
 Deployment: <br/>
 
 ```
 cd kubernetes\autoscaling
-kubectl -n kube-system apply -f .\components\metric-server\metricserver-0.3.7.yaml
+kubectl -n kube-system apply -f .\components\metric-server\components.yaml
 
 #test 
 kubectl -n kube-system get pods
@@ -51,12 +49,12 @@ kubectl top nodes
 
 ## VPA
 
-VPA docs [here]("https://github.com/kubernetes/autoscaler/tree/master/vertical-pod-autoscaler#install-command") <br/>
+VPA docs [here](https://github.com/kubernetes/autoscaler/tree/master/vertical-pod-autoscaler#install-command) <br/>
 Let's install the VPA from a container that can access our cluster
 
 ```
 cd kubernetes/autoscaling/vertical-pod-autoscaling
-docker run -it --rm -v ${HOME}:/root/ -v ${PWD}:/work -w /work --net host debian:buster bash
+docker run -it --rm -v ${HOME}:/root/ -v ${PWD}:/work -w /work --net host debian:bookworm bash
 
 # install git
 apt-get update && apt-get install -y git curl nano
@@ -71,6 +69,10 @@ cd /tmp
 git clone https://github.com/kubernetes/autoscaler.git
 cd autoscaler/vertical-pod-autoscaler/
 
+# you may need to generate VPA certificates 
+bash ./pkg/admission-controller/gencerts.sh
+
+# deploy the VPA
 ./hack/vpa-up.sh
 
 # after few seconds, we can see the VPA components in:

kubernetes/autoscaling/vertical-pod-autoscaling/vpa.yaml

@@ -8,4 +8,4 @@ spec:
     kind:       Deployment
     name:       application-cpu
   updatePolicy:
-    updateMode: "Off"
+    updateMode: "Off" # Auto for automatic updates, Off for manual updates