VictoriaMetrics/lib/httpserver/metrics.go
Aliaksandr Valialkin ab53cb6f7b app/vmagent: substitute -remoteWrite.url with secret-url value in logs, since it may contain sensitive info such as passwords or auth tokens
Pass `-remoteWrite.showURL` command-line flag in order to see real `-remoteWrite.url` values in logs and at `/metrics` page.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/773
2020-09-16 22:36:25 +03:00

39 lines
1.1 KiB
Go

package httpserver
import (
"flag"
"fmt"
"io"
"strings"
"time"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/buildinfo"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/flagutil"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/memory"
"github.com/VictoriaMetrics/metrics"
)
// WritePrometheusMetrics writes all the registered metrics to w in Prometheus exposition format.
func WritePrometheusMetrics(w io.Writer) {
metrics.WritePrometheus(w, true)
fmt.Fprintf(w, "vm_app_version{version=%q} 1\n", buildinfo.Version)
fmt.Fprintf(w, "vm_allowed_memory_bytes %d\n", memory.Allowed())
// Export start time and uptime in seconds
fmt.Fprintf(w, "vm_app_start_timestamp %d\n", startTime.Unix())
fmt.Fprintf(w, "vm_app_uptime_seconds %d\n", int(time.Since(startTime).Seconds()))
// Export flags as metrics.
flag.VisitAll(func(f *flag.Flag) {
lname := strings.ToLower(f.Name)
value := f.Value.String()
if flagutil.IsSecretFlag(lname) {
// Do not expose passwords and keys to prometheus.
value = "secret"
}
fmt.Fprintf(w, "flag{name=%q, value=%q} 1\n", f.Name, value)
})
}
var startTime = time.Now()