87 lines
2.1 KiB
Go
87 lines
2.1 KiB
Go
package troubleshoot
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import (
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"encoding/json"
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"fmt"
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envoy_admin_v3 "github.com/envoyproxy/go-control-plane/envoy/admin/v3"
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"github.com/hashicorp/consul/troubleshoot/validate"
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)
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type statsJson struct {
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Stats []simpleMetric `json:"stats"`
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}
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type simpleMetric struct {
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Value int64 `json:"value,omitempty"`
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Name string `json:"name,omitempty"`
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}
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func (t *Troubleshoot) troubleshootStats() (validate.Messages, error) {
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statMessages := validate.Messages{}
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rejectionStats, err := t.getEnvoyStats("update_rejected")
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if err != nil {
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return nil, fmt.Errorf("could not get config rejection stats from envoy admin API: %w", err)
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}
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totalConfigRejections := 0
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for _, rs := range rejectionStats {
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if rs.Value != 0 {
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totalConfigRejections += int(rs.Value)
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}
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}
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statMessages = append(statMessages, validate.Message{
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Success: true,
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Message: fmt.Sprintf("Envoy has %v rejected configurations", totalConfigRejections),
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})
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connectionFailureStats, err := t.getEnvoyStats("upstream_cx_connect_fail")
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if err != nil {
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return nil, fmt.Errorf("could not get connection failure stats from envoy admin API: %w", err)
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}
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totalCxFailures := 0
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for _, cfs := range connectionFailureStats {
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if cfs.Value != 0 {
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totalCxFailures += int(cfs.Value)
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}
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}
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statMessages = append(statMessages, validate.Message{
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Success: true,
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Message: fmt.Sprintf("Envoy has detected %v connection failure(s).", totalCxFailures),
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})
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return statMessages, nil
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}
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func (t *Troubleshoot) getEnvoyStats(filter string) ([]*envoy_admin_v3.SimpleMetric, error) {
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var resultErr error
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jsonRaw, err := t.request(fmt.Sprintf("stats?format=json&filter=%s&type=Counters", filter))
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if err != nil {
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return nil, fmt.Errorf("error in requesting envoy Admin API /stats endpoint: %w", err)
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}
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var rawStats statsJson
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err = json.Unmarshal(jsonRaw, &rawStats)
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if err != nil {
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return nil, fmt.Errorf("could not unmarshal /stats response: %w", err)
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}
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stats := []*envoy_admin_v3.SimpleMetric{}
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for _, s := range rawStats.Stats {
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stat := &envoy_admin_v3.SimpleMetric{
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Value: uint64(s.Value),
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Name: s.Name,
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}
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stats = append(stats, stat)
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}
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t.envoyStats = stats
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return stats, resultErr
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}
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