forked from mirror/client_golang
84 lines
2.6 KiB
Go
84 lines
2.6 KiB
Go
|
// Copyright 2016 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.
|
||
|
|
|
||
|
|
// Copyright (c) 2013, The Prometheus Authors
|
||
|
|
// All rights reserved.
|
||
|
|
//
|
||
|
|
// Use of this source code is governed by a BSD-style license that can be found
|
||
|
|
// in the LICENSE file.
|
||
|
|
|
||
|
|
package push_test
|
||
|
|
|
||
|
|
import (
|
||
|
|
"fmt"
|
||
|
|
"time"
|
||
|
|
|
||
|
|
"github.com/prometheus/client_golang/prometheus"
|
||
|
|
"github.com/prometheus/client_golang/prometheus/push"
|
||
|
|
)
|
||
|
|
|
||
|
|
var (
|
||
|
|
completionTime = prometheus.NewGauge(prometheus.GaugeOpts{
|
||
|
|
Name: "db_backup_last_completion_timestamp_seconds",
|
||
|
|
Help: "The timestamp of the last completion of a DB backup, successful or not.",
|
||
|
|
})
|
||
|
|
successTime = prometheus.NewGauge(prometheus.GaugeOpts{
|
||
|
|
Name: "db_backup_last_success_timestamp_seconds",
|
||
|
|
Help: "The timestamp of the last successful completion of a DB backup.",
|
||
|
|
})
|
||
|
|
duration = prometheus.NewGauge(prometheus.GaugeOpts{
|
||
|
|
Name: "db_backup_duration_seconds",
|
||
|
|
Help: "The duration of the last DB backup in seconds.",
|
||
|
|
})
|
||
|
|
records = prometheus.NewGauge(prometheus.GaugeOpts{
|
||
|
|
Name: "db_backup_records_processed",
|
||
|
|
Help: "The number of records processed in the last DB backup.",
|
||
|
|
})
|
||
|
|
)
|
||
|
|
|
||
|
|
func performBackup() (int, error) {
|
||
|
|
// Perform the backup and return the number of backed up records and any
|
||
|
|
// applicable error.
|
||
|
|
// ...
|
||
|
|
return 42, nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func ExampleAddFromGatherer() {
|
||
|
|
registry := prometheus.NewRegistry()
|
||
|
|
registry.MustRegister(completionTime, duration, records)
|
||
|
|
// Note that successTime is not registered at this time.
|
||
|
|
|
||
|
|
start := time.Now()
|
||
|
|
n, err := performBackup()
|
||
|
|
records.Set(float64(n))
|
||
|
|
duration.Set(time.Since(start).Seconds())
|
||
|
|
completionTime.SetToCurrentTime()
|
||
|
|
if err != nil {
|
||
|
|
fmt.Println("DB backup failed:", err)
|
||
|
|
} else {
|
||
|
|
// Only now register successTime.
|
||
|
|
registry.MustRegister(successTime)
|
||
|
|
successTime.SetToCurrentTime()
|
||
|
|
}
|
||
|
|
// AddFromGatherer is used here rather than FromGatherer to not delete a
|
||
|
|
// previously pushed success timestamp in case of a failure of this
|
||
|
|
// backup.
|
||
|
|
if err := push.AddFromGatherer(
|
||
|
|
"db_backup", nil,
|
||
|
|
"http://pushgateway:9091",
|
||
|
|
registry,
|
||
|
|
); err != nil {
|
||
|
|
fmt.Println("Could not push to Pushgateway:", err)
|
||
|
|
}
|
||
|
|
}
|