/
legacy.go
72 lines (59 loc) · 1.72 KB
/
legacy.go
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// SPDX-License-Identifier: Apache-2.0
// Copyright Authors of Cilium
package metrics
import (
"github.com/prometheus/client_golang/prometheus"
dto "github.com/prometheus/client_model/go"
"github.com/cilium/cilium/api/v1/operator/models"
)
// Registry is the global prometheus registry for cilium-operator metrics.
var Registry RegisterGatherer
type RegisterGatherer interface {
prometheus.Registerer
prometheus.Gatherer
}
// DumpMetrics gets the current Cilium operator metrics and dumps all into a
// Metrics structure. If metrics cannot be retrieved, returns an error.
func DumpMetrics() ([]*models.Metric, error) {
result := []*models.Metric{}
if Registry == nil {
return result, nil
}
currentMetrics, err := Registry.Gather()
if err != nil {
return result, err
}
for _, val := range currentMetrics {
metricName := val.GetName()
metricType := val.GetType()
for _, metricLabel := range val.Metric {
labelPairs := metricLabel.GetLabel()
labels := make(map[string]string, len(labelPairs))
for _, label := range labelPairs {
labels[label.GetName()] = label.GetValue()
}
var value float64
switch metricType {
case dto.MetricType_COUNTER:
value = metricLabel.Counter.GetValue()
case dto.MetricType_GAUGE:
value = metricLabel.GetGauge().GetValue()
case dto.MetricType_UNTYPED:
value = metricLabel.GetUntyped().GetValue()
case dto.MetricType_SUMMARY:
value = metricLabel.GetSummary().GetSampleSum()
case dto.MetricType_HISTOGRAM:
value = metricLabel.GetHistogram().GetSampleSum()
default:
continue
}
metric := &models.Metric{
Name: metricName,
Labels: labels,
Value: value,
}
result = append(result, metric)
}
}
return result, nil
}