apiVersion: apps/v1
kind: DaemonSet
metadata:
  name: test-daemonset
spec:
  selector:
    matchLabels:
      k8s-app: test-daemonset
  template:
    metadata:
      labels:
        k8s-app: test-daemonset
    spec:
      containers:
        - name: webserver
          image: nginx
          ports:
          - containerPort: 80