k3s/contrib/prometheus/prometheus-service.json

{
    "kind":"Service",
    "apiVersion":"v1",
    "metadata":{
        "name":"prometheus",
        "labels":{
            "name":"prometheus"
        }
    },
    "spec":{
        "type": "NodePort",
        "ports": [
        {
            "port":9090,
            "targetPort":9090,
                "protocol":"TCP"
        }],
        "selector":{
            "name":"kube-prometheus"
        }
    }
}