91 lines
2.2 KiB
Go
91 lines
2.2 KiB
Go
package prometheusremotewrite
|
|
|
|
import (
|
|
"fmt"
|
|
"math"
|
|
"time"
|
|
|
|
"github.com/prometheus/common/model"
|
|
"github.com/prometheus/prometheus/prompb"
|
|
|
|
"github.com/influxdata/telegraf"
|
|
"github.com/influxdata/telegraf/metric"
|
|
)
|
|
|
|
func (p *Parser) extractMetricsV2(ts *prompb.TimeSeries) ([]telegraf.Metric, error) {
|
|
t := time.Now()
|
|
|
|
// Convert each prometheus metric to a corresponding telegraf metric
|
|
// with one field each. The process will filter NaNs in values and skip
|
|
// the corresponding metrics.
|
|
metrics := make([]telegraf.Metric, 0)
|
|
|
|
tags := make(map[string]string, len(p.DefaultTags)+len(ts.Labels))
|
|
for key, value := range p.DefaultTags {
|
|
tags[key] = value
|
|
}
|
|
for _, l := range ts.Labels {
|
|
tags[l.Name] = l.Value
|
|
}
|
|
|
|
metricName := tags[model.MetricNameLabel]
|
|
if metricName == "" {
|
|
return nil, fmt.Errorf("metric name %q not found in tag-set or empty", model.MetricNameLabel)
|
|
}
|
|
delete(tags, model.MetricNameLabel)
|
|
|
|
for _, s := range ts.Samples {
|
|
if math.IsNaN(s.Value) {
|
|
continue
|
|
}
|
|
// converting to telegraf metric
|
|
fields := map[string]interface{}{metricName: s.Value}
|
|
if s.Timestamp > 0 {
|
|
t = time.Unix(0, s.Timestamp*1000000)
|
|
}
|
|
m := metric.New("prometheus_remote_write", tags, fields, t)
|
|
metrics = append(metrics, m)
|
|
}
|
|
|
|
for _, hp := range ts.Histograms {
|
|
h := hp.ToFloatHistogram()
|
|
|
|
if hp.Timestamp > 0 {
|
|
t = time.Unix(0, hp.Timestamp*1000000)
|
|
}
|
|
|
|
fields := map[string]any{
|
|
metricName + "_sum": h.Sum,
|
|
}
|
|
m := metric.New("prometheus_remote_write", tags, fields, t)
|
|
metrics = append(metrics, m)
|
|
|
|
fields = map[string]any{
|
|
metricName + "_count": h.Count,
|
|
}
|
|
m = metric.New("prometheus_remote_write", tags, fields, t)
|
|
metrics = append(metrics, m)
|
|
|
|
count := 0.0
|
|
iter := h.AllBucketIterator()
|
|
for iter.Next() {
|
|
bucket := iter.At()
|
|
|
|
count = count + bucket.Count
|
|
fields = map[string]any{
|
|
metricName: count,
|
|
}
|
|
|
|
localTags := make(map[string]string, len(tags)+1)
|
|
localTags[metricName+"_le"] = fmt.Sprintf("%g", bucket.Upper)
|
|
for k, v := range tags {
|
|
localTags[k] = v
|
|
}
|
|
|
|
m := metric.New("prometheus_remote_write", localTags, fields, t)
|
|
metrics = append(metrics, m)
|
|
}
|
|
}
|
|
|
|
return metrics, nil
|
|
}
|