36 lines
1.3 KiB
Go
36 lines
1.3 KiB
Go
// Copyright 2015 The Prometheus Authors
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
// Exporter is a prometheus exporter using multiple Factories to collect and export system metrics.
|
|
package collector
|
|
|
|
import (
|
|
"github.com/prometheus/client_golang/prometheus"
|
|
)
|
|
|
|
const Namespace = "node"
|
|
|
|
var Factories = make(map[string]func() (Collector, error))
|
|
|
|
// Interface a collector has to implement.
|
|
type Collector interface {
|
|
// Get new metrics and expose them via prometheus registry.
|
|
Update(ch chan<- prometheus.Metric) (err error)
|
|
}
|
|
|
|
// TODO: Instead of periodically call Update, a Collector could be implemented
|
|
// as a real prometheus.Collector that only gathers metrics when
|
|
// scraped. (However, for metric gathering that takes very long, it might
|
|
// actually be better to do them proactively before scraping to minimize scrape
|
|
// time.)
|