---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: kube-scheduler
  namespace: kube-system
  labels:
    tier: control-plane
    component: kube-scheduler
spec:
  replicas: 2
  template:
    metadata:
      labels:
        tier: control-plane
        component: kube-scheduler
      annotations:
        scheduler.alpha.kubernetes.io/critical-pod: ''
    spec:
      affinity:
        podAntiAffinity:
          preferredDuringSchedulingIgnoredDuringExecution:
          - weight: 100
            podAffinityTerm:
              labelSelector:
                matchExpressions:
                - key: tier
                  operator: In
                  values:
                  - control-plane
                - key: component
                  operator: In
                  values:
                  - kube-scheduler
              topologyKey: kubernetes.io/hostname
      containers:
      - name: kube-scheduler
        image: quay.io/coreos/hyperkube:v1.6.2_coreos.0
        command:
        - ./hyperkube
        - scheduler
        - --leader-elect=true
        livenessProbe:
          httpGet:
            path: /healthz
            port: 10251  # Note: Using default port. Update if --port option is set differently.
          initialDelaySeconds: 15
          timeoutSeconds: 15
      nodeSelector:
        node-role.kubernetes.io/master: ""
      tolerations:
      - key: CriticalAddonsOnly
        operator: Exists
      - key: node-role.kubernetes.io/master
        operator: Exists
        effect: NoSchedule