mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
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40 lines
1.1 KiB
Go
40 lines
1.1 KiB
Go
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package httpserver
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import (
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"flag"
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"fmt"
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"io"
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"strings"
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"time"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/buildinfo"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/memory"
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"github.com/VictoriaMetrics/metrics"
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)
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func writePrometheusMetrics(w io.Writer) {
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metrics.WritePrometheus(w, true)
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fmt.Fprintf(w, "vm_app_version{version=%q} 1\n", buildinfo.Version)
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fmt.Fprintf(w, "vm_allowed_memory_bytes %d\n", memory.Allowed())
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// Export start time and uptime in seconds
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fmt.Fprintf(w, "vm_app_start_timestamp %d\n", startTime.Unix())
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fmt.Fprintf(w, "vm_app_uptime_seconds %d\n", int(time.Since(startTime).Seconds()))
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// TODO: export other interesting stuff.
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// Export flags as metrics.
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flag.VisitAll(func(f *flag.Flag) {
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lname := strings.ToLower(f.Name)
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value := f.Value.String()
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if strings.Contains(lname, "pass") || strings.Contains(lname, "key") || strings.Contains(lname, "secret") {
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// Do not expose passwords and keys to prometheus.
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value = "secret"
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}
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fmt.Fprintf(w, "flag{name=%q, value=%q} 1\n", f.Name, value)
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})
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}
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var startTime = time.Now()
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