k3s/docs/user-guide/persistent-volumes/simpletest/service.json

{
  "kind": "Service",
  "apiVersion": "v1",
  "metadata": {
    "name": "frontendservice"
  },
  "spec": {
    "ports": [
      {
        "protocol": "TCP",
        "port": 3000,
        "targetPort": "http-server"
      }
    ],
    "selector": {
      "name": "frontendhttp"
    }
  }
}