sample deployment yaml file

gistfile1.txt

apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: s2
  annotations:
   scheduler.alpha.kubernetes.io/affinity: >
    {"podAntiAffinity": {
      "requiredDuringSchedulingIgnoredDuringExecution": [
       {
          "labelSelector" :{
          "matchExpressions": [
             {
              "key": "security",
              "operator": "In",
              "values": ["s1"]
             }
           ]
          },
         "topologyKey": "kubernetes.io/hostname"
       }]
     }}
spec:
  replicas: 2
  template:
    metadata:
      labels:
        security: s1
    spec:
     containers:
      - name: pod-test
        image: docker.io/ocpqe/hello-pod