manifest.yaml

apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  labels:
    k8s-app: descheduler
  name: system:descheduler
rules:
- apiGroups:
  - ''
  resources:
  - 'nodes'
  - 'pods'
  verbs:
  - 'get'
  - 'list'
  - 'watch'
- apiGroups:
  - 'apps'
  resources:
  - 'replicasets'
  verbs:
  - 'list'
  - 'watch'
- apiGroups:
  - ''
  resources:
  - 'pods/eviction'
  verbs:
  - 'create'
---
apiVersion: v1
kind: ServiceAccount
metadata:
  labels:
    k8s-app: descheduler
  name: descheduler-service-account
  namespace: kube-system
---
apiVersion: rbac.authorization.k8s.io/v1beta1
kind: ClusterRoleBinding
metadata:
  name: descheduler
  labels:
    k8s-app: descheduler
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: system:descheduler
subjects:
- kind: ServiceAccount
  name: descheduler-service-account
  namespace: kube-system
---
apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    k8s-app: descheduler
  name: descheduler
  namespace: kube-system
spec:
  replicas: 1
  selector:
    matchLabels:
      run: descheduler
  template:
    metadata:
      labels:
        run: descheduler
    spec:
      containers:
      - image: lentil1016/descheduler
        name: descheduler
        volumeMounts:
        - name: descheduler-conf
          mountPath: /root/.descheduler.yaml
          subPath: descheduler.yaml
        resources:
          requests:
            memory: "200Mi"
            cpu: "100m"
          limits:
            memory: "200Mi"
            cpu: "100m"
      serviceAccountName: descheduler-service-account
      volumes:
      - name: descheduler-conf
        configMap:
          name: descheduler-conf
---
apiVersion: v1
kind: ConfigMap
metadata:
  labels:
    k8s-app: descheduler
  name: descheduler-conf
  namespace: kube-system
data:
  descheduler.yaml: |-
    apiVersion: descheduler.lentil1016.cn/v1alpha1
    spec:
        triggers:
            allReplicasOnOneNode: true
            minSparedPercentage:
                cpu: 30
                memory: 30
                pod: 30
            maxSparedPercentage:
                cpu: 100
                memory: 100
                pod: 100
            mode: "event"
            time:
                from: 10:00PM
                for: "1h"
        rules:
            hardEviction: false
            affectNamespaces: ["default"]
            nodeSelector: ""
            maxEvictSize: 4