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Alerting: Add metric to check for default AM configurations (#80225)

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* Alerting: Add metric to check for default AM configurations

* Use a gauge for the config hash

* don't go out of bounds when converting uint64 to float64

* expose metric for config hash

* update metrics after applying config
This commit is contained in:
Santiago
2024-01-16 17:12:24 +01:00
committed by GitHub
parent 06800e2d31
commit 3afd94185c
3 changed files with 33 additions and 3 deletions
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7
pkg/services/ngalert/metrics/alertmanager.go
View File

@@ -24,6 +24,7 @@ func NewAlertmanagerMetrics(r prometheus.Registerer) *Alertmanager {
}
type AlertmanagerConfigMetrics struct {
ConfigHash *prometheus.GaugeVec
Matchers prometheus.Gauge
MatchRE prometheus.Gauge
Match prometheus.Gauge
@@ -32,6 +33,10 @@ type AlertmanagerConfigMetrics struct {
func NewAlertmanagerConfigMetrics(r prometheus.Registerer) *AlertmanagerConfigMetrics {
m := &AlertmanagerConfigMetrics{
ConfigHash: prometheus.NewGaugeVec(prometheus.GaugeOpts{
Name: "alertmanager_config_hash",
Help: "The hash of the Alertmanager configuration.",
}, []string{"org"}),
Matchers: prometheus.NewGauge(prometheus.GaugeOpts{
Name: "alertmanager_config_matchers",
Help: "The total number of matchers",
@@ -50,7 +55,7 @@ func NewAlertmanagerConfigMetrics(r prometheus.Registerer) *AlertmanagerConfigMe
}),
}
if r != nil {
r.MustRegister(m.Matchers, m.MatchRE, m.Match, m.ObjectMatchers)
r.MustRegister(m.ConfigHash, m.Matchers, m.MatchRE, m.Match, m.ObjectMatchers)
}
return m
}

11
pkg/services/ngalert/metrics/multi_org_alertmanager.go
View File

@@ -117,6 +117,8 @@ type AlertmanagerAggregatedMetrics struct {
matchRE *prometheus.Desc
match *prometheus.Desc
objectMatchers *prometheus.Desc
configHash *prometheus.Desc
}
func NewAlertmanagerAggregatedMetrics(registries *metrics.TenantRegistries) *AlertmanagerAggregatedMetrics {
@@ -253,6 +255,11 @@ func NewAlertmanagerAggregatedMetrics(registries *metrics.TenantRegistries) *Ale
fmt.Sprintf("%s_%s_alertmanager_config_object_matchers", Namespace, Subsystem),
"The total number of object_matchers",
nil, nil),
configHash: prometheus.NewDesc(
fmt.Sprintf("%s_%s_alertmanager_config_hash", Namespace, Subsystem),
"The hash of the Alertmanager configuration.",
[]string{"org"}, nil),
}
return aggregatedMetrics
@@ -296,6 +303,8 @@ func (a *AlertmanagerAggregatedMetrics) Describe(out chan<- *prometheus.Desc) {
out <- a.matchRE
out <- a.match
out <- a.objectMatchers
out <- a.configHash
}
func (a *AlertmanagerAggregatedMetrics) Collect(out chan<- prometheus.Metric) {
@@ -338,4 +347,6 @@ func (a *AlertmanagerAggregatedMetrics) Collect(out chan<- prometheus.Metric) {
data.SendSumOfGauges(out, a.matchRE, "alertmanager_config_match_re")
data.SendSumOfGauges(out, a.match, "alertmanager_config_match")
data.SendSumOfGauges(out, a.objectMatchers, "alertmanager_config_object_matchers")
data.SendMaxOfGaugesPerTenant(out, a.configHash, "alertmanager_config_hash")
}