metrics.go

/*
 * Copyright 2018 - 2020 Christian Müller <dev@c-mueller.xyz>
 *
 * 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 ads

import (
	"github.com/coredns/coredns/plugin"
	"github.com/prometheus/client_golang/prometheus"
	"github.com/prometheus/client_golang/prometheus/promauto"
	"sync"
)

var requestCountTotal = promauto.NewCounterVec(prometheus.CounterOpts{
	Namespace: plugin.Namespace,
	Subsystem: "ads",
	Name:      "request_count_total",
	Help:      "Total counter of requests made.",
}, []string{"server"})

var blockedRequestCountTotal = promauto.NewCounterVec(prometheus.CounterOpts{
	Namespace: plugin.Namespace,
	Subsystem: "ads",
	Name:      "blocked_request_count_total",
	Help:      "Total counter of requests blocked by this plugin.",
}, []string{"server"})

var blockedRequestCount = promauto.NewGaugeVec(prometheus.GaugeOpts{
    Namespace: plugin.Namespace,
    Subsystem: "ads",
    Name:      "blocked_request_count",
    Help:      "Counter of requests blocked by this plugin.",
}, []string{"server"})

var once sync.Once