apiVersion: v1
kind: ConfigMap
metadata:
  name: cluster-autoscaler-status
  namespace: kube-system
data:
  nodes.max: "10"
  nodes.min: "3"
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: cluster-autoscaler
  namespace: kube-system
  labels:
    app: cluster-autoscaler
spec:
  replicas: 1
  selector:
    matchLabels:
      app: cluster-autoscaler
  template:
    metadata:
      labels:
        app: cluster-autoscaler
    spec:
      serviceAccountName: cluster-autoscaler
      containers:
      - image: registry.k8s.io/autoscaling/cluster-autoscaler:v1.27.0
        name: cluster-autoscaler
        command:
        - ./cluster-autoscaler
        - --v=4
        - --stderrthreshold=info
        - --cloud-provider=clusterapi
        - --namespace=kube-system
        - --nodes=3:10:kind-worker
        - --scale-down-delay-after-add=1m
        - --scale-down-unneeded-time=1m
        - --skip-nodes-with-local-storage=false
        - --skip-nodes-with-system-pods=false
---
apiVersion: v1
kind: ServiceAccount
metadata:
  name: cluster-autoscaler
  namespace: kube-system
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  name: cluster-autoscaler
rules:
- apiGroups: [""]
  resources: ["events", "endpoints"]
  verbs: ["create", "patch"]
- apiGroups: [""]
  resources: ["pods/eviction"]
  verbs: ["create"]
- apiGroups: [""]
  resources: ["pods/status"]
  verbs: ["update"]
- apiGroups: [""]
  resources: ["nodes"]
  verbs: ["watch", "list", "get", "update"]
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: cluster-autoscaler
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: cluster-autoscaler
subjects:
- kind: ServiceAccount
  name: cluster-autoscaler
  namespace: kube-system