prometheus/discovery/linode/metrics.go

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// 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.
package linode
import (
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/prometheus/discovery"
)
var _ discovery.DiscovererMetrics = (*linodeMetrics)(nil)
type linodeMetrics struct {
refreshMetrics discovery.RefreshMetricsInstantiator
failuresCount prometheus.Counter
metricRegisterer discovery.MetricRegisterer
}
func newDiscovererMetrics(reg prometheus.Registerer, rmi discovery.RefreshMetricsInstantiator) discovery.DiscovererMetrics {
m := &linodeMetrics{
refreshMetrics: rmi,
failuresCount: prometheus.NewCounter(
prometheus.CounterOpts{
Name: "prometheus_sd_linode_failures_total",
Help: "Number of Linode service discovery refresh failures.",
}),
}
m.metricRegisterer = discovery.NewMetricRegisterer(reg, []prometheus.Collector{
m.failuresCount,
})
return m
}
// Register implements discovery.DiscovererMetrics.
func (m *linodeMetrics) Register() error {
return m.metricRegisterer.RegisterMetrics()
}
// Unregister implements discovery.DiscovererMetrics.
func (m *linodeMetrics) Unregister() {
m.metricRegisterer.UnregisterMetrics()
}