Example of a Kubernetes Deployment

kube_deployment_example.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app: my-application-deployment
  name: my-application
spec:
  replicas: 2
  selector:
    matchLabels:
      app: my-application
  template:
    metadata:
      labels:
        app: my-application
    spec:
      affinity:
        podAntiAffinity: 
          preferredDuringSchedulingIgnoredDuringExecution: 
          - weight: 100
            podAffinityTerm:
              labelSelector:
                matchExpressions:
                - key: app 
                  operator: In 
                  values:
                  - my-application
              topologyKey: kubernetes.io/hostname
      containers:
      - name: hello-world-app
        image: hello-world
        ports:
        - containerPort: 9024
status: {}