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Alerting: Configurable externalLabels for Loki state history (#62404)

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* Add config option for external labels

* Remove redundant nilcheck
This commit is contained in:
Alexander Weaver 2023-01-30 14:24:45 -06:00 committed by GitHub
parent c8e7e7ccf1
commit b4682fe3cb
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 18 additions and 5 deletions
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11
pkg/services/ngalert/state/historian/loki.go
View File

@ -30,6 +30,7 @@ type remoteLokiClient interface {
type RemoteLokiBackend struct {
client remoteLokiClient
externalLabels map[string]string
log log.Logger
}
@ -37,6 +38,7 @@ func NewRemoteLokiBackend(cfg LokiConfig) *RemoteLokiBackend {
logger := log.New("ngalert.state.historian", "backend", "loki")
return &RemoteLokiBackend{
client: newLokiClient(cfg, logger),
externalLabels: cfg.ExternalLabels,
log: logger,
}
}
@ -62,7 +64,7 @@ func (h *RemoteLokiBackend) statesToStreams(rule history_model.RuleMeta, states
continue
}
labels := removePrivateLabels(state.State.Labels)
labels := h.addExternalLabels(removePrivateLabels(state.State.Labels))
labels[OrgIDLabel] = fmt.Sprint(rule.OrgID)
labels[RuleUIDLabel] = fmt.Sprint(rule.UID)
labels[GroupLabel] = fmt.Sprint(rule.Group)
@ -124,6 +126,13 @@ func (h *RemoteLokiBackend) recordStreams(ctx context.Context, streams []stream,
return nil
}
func (h *RemoteLokiBackend) addExternalLabels(labels data.Labels) data.Labels {
for k, v := range h.externalLabels {
labels[k] = v
}
return labels
}
type lokiEntry struct {
SchemaVersion int `json:"schemaVersion"`
Previous string `json:"previous"`

1
pkg/services/ngalert/state/historian/loki_http.go
View File

@ -20,6 +20,7 @@ type LokiConfig struct {
BasicAuthUser string
BasicAuthPassword string
TenantID string
ExternalLabels map[string]string
}
type httpLokiClient struct {

3
pkg/setting/setting_unified_alerting.go
View File

@ -108,6 +108,7 @@ type UnifiedAlertingStateHistorySettings struct {
// if one of them is set.
LokiBasicAuthPassword string
LokiBasicAuthUsername string
ExternalLabels map[string]string
}
// IsEnabled returns true if UnifiedAlertingSettings.Enabled is either nil or true.
@ -317,6 +318,7 @@ func (cfg *Cfg) ReadUnifiedAlertingSettings(iniFile *ini.File) error {
uaCfg.ReservedLabels = uaCfgReservedLabels
stateHistory := iniFile.Section("unified_alerting.state_history")
stateHistoryLabels := iniFile.Section("unified_alerting.state_history.external_labels")
uaCfgStateHistory := UnifiedAlertingStateHistorySettings{
Enabled: stateHistory.Key("enabled").MustBool(stateHistoryDefaultEnabled),
Backend: stateHistory.Key("backend").MustString("annotations"),
@ -324,6 +326,7 @@ func (cfg *Cfg) ReadUnifiedAlertingSettings(iniFile *ini.File) error {
LokiTenantID: stateHistory.Key("loki_tenant_id").MustString(""),
LokiBasicAuthUsername: stateHistory.Key("loki_basic_auth_username").MustString(""),
LokiBasicAuthPassword: stateHistory.Key("loki_basic_auth_password").MustString(""),
ExternalLabels: stateHistoryLabels.KeysHash(),
}
uaCfg.StateHistory = uaCfgStateHistory