VictoriaMetrics/lib/pushmetrics/pushmetrics.go

44 lines
2 KiB
Go

package pushmetrics
import (
"context"
"flag"
"strings"
"time"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/appmetrics"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/flagutil"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/logger"
"github.com/VictoriaMetrics/metrics"
)
var (
pushURL = flagutil.NewArrayString("pushmetrics.url", "Optional URL to push metrics exposed at /metrics page. See https://docs.victoriametrics.com/#push-metrics . "+
"By default, metrics exposed at /metrics page aren't pushed to any remote storage")
pushInterval = flag.Duration("pushmetrics.interval", 10*time.Second, "Interval for pushing metrics to every -pushmetrics.url")
pushExtraLabel = flagutil.NewArrayString("pushmetrics.extraLabel", "Optional labels to add to metrics pushed to every -pushmetrics.url . "+
`For example, -pushmetrics.extraLabel='instance="foo"' adds instance="foo" label to all the metrics pushed to every -pushmetrics.url`)
pushHeader = flagutil.NewArrayString("pushmetrics.header", "Optional HTTP request header to send to every -pushmetrics.url . "+
"For example, -pushmetrics.header='Authorization: Basic foobar' adds 'Authorization: Basic foobar' header to every request to every -pushmetrics.url")
disableCompression = flag.Bool("pushmetrics.disableCompression", false, "Whether to disable request body compression when pushing metrics to every -pushmetrics.url")
)
func init() {
// The -pushmetrics.url flag can contain basic auth creds, so it mustn't be visible when exposing the flags.
flagutil.RegisterSecretFlag("pushmetrics.url")
}
// Init must be called after logger.Init
func Init() {
extraLabels := strings.Join(*pushExtraLabel, ",")
for _, pu := range *pushURL {
opts := &metrics.PushOptions{
ExtraLabels: extraLabels,
Headers: *pushHeader,
DisableCompression: *disableCompression,
}
if err := metrics.InitPushExtWithOptions(context.Background(), pu, *pushInterval, appmetrics.WritePrometheusMetrics, opts); err != nil {
logger.Fatalf("cannot initialize pushmetrics: %s", err)
}
}
}