67 lines
1.4 KiB
Go
67 lines
1.4 KiB
Go
// Copyright (C) 2019 Storj Labs, Inc.
|
|
// See LICENSE for copying information.
|
|
|
|
package telemetry_test
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"log"
|
|
"time"
|
|
|
|
"github.com/zeebo/admission/admproto"
|
|
"github.com/zeebo/errs"
|
|
"golang.org/x/sync/errgroup"
|
|
monkit "gopkg.in/spacemonkeygo/monkit.v2"
|
|
|
|
"storj.io/storj/pkg/telemetry"
|
|
)
|
|
|
|
// Example is an example of a receiver and sender
|
|
func Example() {
|
|
ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
|
|
defer cancel()
|
|
|
|
var group errgroup.Group
|
|
|
|
receiver, err := telemetry.Listen("127.0.0.1:0")
|
|
if err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
|
|
// receiver
|
|
group.Go(func() (err error) {
|
|
defer func() { err = errs.Combine(err, receiver.Close()) }()
|
|
err = receiver.Serve(ctx, telemetry.HandlerFunc(
|
|
func(application, instance string, key []byte, val float64) {
|
|
fmt.Printf("receive %s %s %s %v\n", application, instance, string(key), val)
|
|
},
|
|
))
|
|
if err == context.Canceled {
|
|
err = nil
|
|
}
|
|
return err
|
|
})
|
|
|
|
// sender
|
|
group.Go(func() error {
|
|
client, err := telemetry.NewClient(receiver.Addr(), telemetry.ClientOpts{
|
|
Interval: time.Second,
|
|
Application: "example",
|
|
Instance: telemetry.DefaultInstanceID(),
|
|
Registry: monkit.Default,
|
|
FloatEncoding: admproto.Float32Encoding,
|
|
})
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
client.Run(ctx)
|
|
return nil
|
|
})
|
|
|
|
if err := group.Wait(); err != nil {
|
|
fmt.Println(err)
|
|
}
|
|
}
|