k3s/examples/extensions/deployment.yaml

apiVersion: extensions/v1beta1 
kind: Deployment
metadata:
  name: nginx-deployment
  labels:
    name: nginx-deployment
spec:
  replicas: 3
  selector:
    name: nginx
  template:
    metadata:
      labels:
        name: nginx
    spec:
      containers:
      - name: nginx
        image: nginx
        ports:
        - containerPort: 80