.yaml

apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  namespace: kube-system
  name: scheduler-resource-reader
rules:
  - apiGroups:
      - ""
    resources:
      - events
    verbs:
      - create
      - patch
      - update
  - apiGroups:
      - "*"
    resources:
      - configmaps
      - storageclasses
    verbs:
      - get
      - list
      - watch
  - apiGroups:
      - ""
    resources:
      - endpoints
    verbs:
      - create
      - get
      - list
      - watch
      - delete
      - update

  - apiGroups:
      - ""
    resourceNames:
      - kube-scheduler
    resources:
      - endpoints
    verbs:
      - delete
      - get
      - patch
      - update
  - apiGroups:
      - ""
    resources:
      - nodes
    verbs:
      - get
      - list
      - watch
  - apiGroups:
      - ""
    resources:
      - pods
    verbs:
      - delete
      - get
      - list
      - watch
  - apiGroups:
      - ""
    resources:
      - bindings
      - pods/binding
    verbs:
      - create
  - apiGroups:
      - ""
    resources:
      - pods/status
    verbs:
      - patch
      - update
  - apiGroups:
      - ""
    resources:
      - replicationcontrollers
      - services
    verbs:
      - get
      - list
      - watch
  - apiGroups:
      - apps
      - extensions
    resources:
      - replicasets
    verbs:
      - get
      - list
      - watch
  - apiGroups:
      - apps
    resources:
      - statefulsets
    verbs:
      - get
      - list
      - watch
  - apiGroups:
      - policy
    resources:
      - poddisruptionbudgets
    verbs:
      - get
      - list
      - watch
  - apiGroups:
      - ""
    resources:
      - persistentvolumeclaims
      - persistentvolumes
    verbs:
      - get
      - list
      - watch
  - apiGroups:
      - authentication.k8s.io
    resources:
      - tokenreviews
    verbs:
      - create
  - apiGroups:
      - authorization.k8s.io
    resources:
      - subjectaccessreviews
    verbs:
      - create
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: scheduler-resource-reader-binding
  namespace: kube-system
subjects:
  - kind: ServiceAccount
    name: default
    namespace: kube-system
roleRef:
  kind: ClusterRole
  name: scheduler-resource-reader
  apiGroup: rbac.authorization.k8s.io
---
apiVersion: v1
kind: ConfigMap
metadata:
  name: rl-scheduler-config
  namespace: kube-system
data:
  config.yaml: |
    apiVersion: kubescheduler.config.k8s.io/v1alpha1
    kind: KubeSchedulerConfiguration
    schedulerName: rl-scheduler
    algorithmSource:
      policy:
        configMap:
          namespace: kube-system
          name: rl-scheduler-policy
    leaderElection:
      leaderElect: true
      lockObjectName: rl-scheduler
      lockObjectNamespace: kube-system
---
apiVersion: v1
kind: ConfigMap
metadata:
  name: rl-scheduler-policy
  namespace: kube-system
data:
  policy.cfg : |
    {
      "kind" : "Policy",
      "apiVersion" : "v1",
      "predicates" : [
        {"name" : "PodFitsHostPorts"},
        {"name" : "PodFitsResources"},
        {"name" : "NoDiskConflict"},
        {"name" : "MatchNodeSelector"},
        {"name" : "HostName"}
      ],
      "priorities" : [
        {"name" : "LeastRequestedPriority", "weight" : 1},
        {"name" : "BalancedResourceAllocation", "weight" : 1},
        {"name" : "ServiceSpreadingPriority", "weight" : 1},
        {"name" : "EqualPriority", "weight" : 1}
      ],
      "extenders" : [
      {
        "urlPrefix": "http://localhost/scheduler",
        "prioritizeVerb": "priorities/rl-priority",
        "weight": 10,
        "enableHttps": false,
        "nodeCacheCapable": false
      }
      ],
      "hardPodAffinitySymmetricWeight" : 10
    }
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: rl-scheduler
  namespace: kube-system
  labels:
    app: rl-scheduler
spec:
  replicas: 1
  selector:
    matchLabels:
      app: rl-scheduler
  template:
    metadata:
      labels:
        app: rl-scheduler
    spec:
      volumes:
        - name: rl-scheduler-config
          configMap:
            name: rl-scheduler-config
      containers:
        - name: rl-scheduler
          image: gcr.io/google_containers/hyperkube:v1.13.5
          imagePullPolicy: IfNotPresent
          args:
          - kube-scheduler
          - --config=/rl-scheduler/config.yaml
          - -v=4
          volumeMounts:
          - name: rl-scheduler-config
            mountPath: /rl-scheduler
        - name: rl-scheduler-extender
          image: $USERID/rl-scheduler-extender:latest
          imagePullPolicy: Always
          livenessProbe:
            httpGet:
              path: /version
              port: 80
          readinessProbe:
            httpGet:
              path: /version
              port: 80
          ports:
            - containerPort: 80
          env:
            - name: LOG_LEVEL
              value: INFO