56 lines
1.4 KiB
Go
56 lines
1.4 KiB
Go
package internal
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import (
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"errors"
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"fmt"
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"io"
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"net/http"
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"strings"
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dto "github.com/prometheus/client_model/go"
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"github.com/prometheus/common/expfmt"
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log "github.com/sirupsen/logrus"
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)
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func ParseMetrics(metrics string) (map[string]*dto.MetricFamily, error) {
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reader := strings.NewReader(metrics)
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var parser expfmt.TextParser
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mf, err := parser.TextToMetricFamilies(reader)
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if err != nil {
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return nil, errors.New(fmt.Sprintf("Error decoding metrics: %s", err.Error()))
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}
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return mf, nil
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}
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func GetMetrics(cfg *Config, endpoint string) (string, error) {
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resp, err := http.Get(fmt.Sprintf("%s://%s", cfg.Protocol, endpoint))
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if err != nil {
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return "", errors.New(fmt.Sprintf("Error getting metrics: %s", err.Error()))
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}
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defer resp.Body.Close()
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if resp.StatusCode == http.StatusOK {
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bodyBytes, err := io.ReadAll(resp.Body)
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if err != nil {
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log.Fatal(err)
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}
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bodyString := string(bodyBytes)
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return bodyString, nil
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}
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return "", errors.New(fmt.Sprintf("None ok return code from metrics endoint: %s", resp.Status))
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}
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func GetIpFromMetrics(metrics *dto.MetricFamily) (string, error) {
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for _, metric := range metrics.Metric {
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for _, label := range metric.Label {
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if *label.Name == "ip" {
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log.WithFields(log.Fields{
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"Caller": "Main",
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}).Info(fmt.Sprintf("Found IP Label: %s", *label.Value))
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return *label.Value, nil
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}
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}
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}
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return "", errors.New("Could not find 'ip' in metrics labels")
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}
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