rk-prom

A simple prometheus initializer. What rk-prom trying to do is described as bellow:

Start prometheus client by calling StartProm()
Start prometheus client by providing yaml config
Start a daemon thread which will periodically push local prometheus metrics to PushGateway
Simple wrapper of Counter, Gauge, Summary, Histogram like POJO with GetXXX(), RegisterXXX(), UnRegisterXXX()
Go & Process collector variables which is originally implemented by prometheus client package.

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Installation
Development Status: Active
Quick start
Example
Contributing

Installation

go get -u github.com/rookie-ninja/rk-prom

Development Status: Active

In Prod version.

Quick start

Start with Bootstrap() with code

package main

import (
	"github.com/rookie-ninja/rk-prom"
	"github.com/rookie-ninja/rk-query"
	"time"
)

func main() {
	// create prom entry
	entry := rkprom.RegisterPromEntry()

	// start server
	entry.Bootstrap(context.TODO())

	// stop server
	entry.Interrupt(context.TODO())
}

Start with Bootstrap() with config file

---
prom:
  enabled: true
#  port: 1608
#  path: metrics
#  pusher:
#    enabled: false
#    intervalMS: 1
#    jobName: "rk-job"
#    remoteAddress: "localhost:9091"
#    basicAuth: "user:pass"

package main

import (
	"github.com/rookie-ninja/rk-prom"
	"github.com/rookie-ninja/rk-query"
	"time"
)

func main() {
	rkentry.RegisterInternalEntriesFromConfig("example/boot.yaml")

	maps := rkprom.RegisterPromEntriesWithConfig("example/boot.yaml")

	entry := maps[rkprom.PromEntryNameDefault]
	entry.Bootstrap(context.TODO())

	rkentry.GlobalAppCtx.WaitForShutdownSig()
    
	// stop server
	entry.Interrupt(context.TODO())
}

Name	Description	Option	Default Value
prom.enabled	Enable prometheus	bool	false
prom.port	Prometheus port	integer	1608
prom.path	Prometheus path	string	metrics
prom.pusher.enabled	Enable push gateway pusher	bool	false
prom.pusher.intervalMS	Push interval to remote push gateway	integer	0
prom.pusher.jobName	Pusher job name	string	empty string
prom.pusher.remoteAddress	Pusher url	string	empty string
prom.pusher.basicAuth	basic auth as user:password	string	empty string

Example

Working with Counter (namespace and subsystem)

metricsSet := rkprom.NewMetricsSet("my_namespace", "my_service")

metricsSet.RegisterCounter("counter", "key_1")

metricsSet.GetCounterWithValues("counter", "value_1").Inc()
metricsSet.GetCounterWithLabels("counter", prometheus.Labels{"key_1":"value_1"}).Inc()

Working with Gauge (namespace and subsystem)

metricsSet := rkprom.NewMetricsSet("my_namespace", "my_service")
metricsSet.RegisterGauge("gauge", "key_1")

metricsSet.GetGaugeWithValues("gauge", "value_1").Inc()
metricsSet.GetGaugeWithLabels("gauge", prometheus.Labels{"key_1":"value_1"}).Inc()

Working with Summary (custom namespace and subsystem)

metricsSet := rkprom.NewMetricsSet("my_namespace", "my_service")
metricsSet.RegisterSummary("summary", rk_prom.SummaryObjectives, "key_1")

metricsSet.GetSummaryWithValues("summary", "value_1").Observe(1.0)
metricsSet.GetSummaryWithLabels("summary", prometheus.Labels{"key_1":"value_1"}).Observe(1.0)

Working with Histogram (custom namespace and subsystem)

metricsSet := rkprom.NewMetricsSet("new_namespace", "new_service")
metricsSet.RegisterHistogram("histogram", []float64{}, "key_1")

metricsSet.GetHistogramWithValues("histogram", "value_1").Observe(1.0)
metricsSet.GetHistogramWithLabels("histogram", prometheus.Labels{"key_1":"value_1"}).Observe(1.0)

Working with PushGateway publisher

pusher, _ := NewPushGatewayPusher(
	WithIntervalMSPusher(2 * time.Second),
	WithRemoteAddressPusher("localhost:8888"),
	WithJobNamePusher("test_job"))

pusher.Start()
defer pusher.Shutdown()

time.Sleep(2 * time.Second)

Contributing

We encourage and support an active, healthy community of contributors — including you! Details are in the contribution guide and the code of conduct. The pulse-line maintainers keep an eye on issues and pull requests. So don't hesitate to hold us to a high standard.