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Alerting: Wire up alertmanagerRemoteOnly feature toggle. (#88329)

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* Alerting: Wire up alertmanagerRemoteOnly feature toggle.

Though the mode isn't feature complete yet, it will be useful to have the
feature toggle wired up in order to start testing.

* Apply suggestions from code review

Co-authored-by: Santiago <santiagohernandez.1997@gmail.com>

* Formatting

---------

Co-authored-by: Santiago <santiagohernandez.1997@gmail.com>
This commit is contained in:
Steve Simpson 2024-05-27 16:18:46 +02:00 committed by GitHub
parent aac6e6dfd9
commit 08b18113d2
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1 changed files with 30 additions and 2 deletions
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32
pkg/services/ngalert/ngalert.go
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@ -164,7 +164,7 @@ func (ng *AlertNG) init() error {
// If enabled, configure the remote Alertmanager.
// - If several toggles are enabled, the order of precedence is RemoteOnly, RemotePrimary, RemoteSecondary
// - If no toggles are enabled, we default to using only the internal Alertmanager
// We currently support only remote secondary mode, so in case other toggles are enabled we fall back to remote secondary.
// We currently do not support remote primary mode, so we fall back to remote secondary.
var overrides []notifier.Option
moaLogger := log.New("ngalert.multiorg.alertmanager")
remoteOnly := ng.FeatureToggles.IsEnabled(initCtx, featuremgmt.FlagAlertmanagerRemoteOnly)
@ -172,7 +172,35 @@ func (ng *AlertNG) init() error {
remoteSecondary := ng.FeatureToggles.IsEnabled(initCtx, featuremgmt.FlagAlertmanagerRemoteSecondary)
if ng.Cfg.UnifiedAlerting.RemoteAlertmanager.Enable {
switch {
case remoteOnly, remotePrimary:
case remoteOnly:
ng.Log.Debug("Starting Grafana with remote only mode enabled")
m := ng.Metrics.GetRemoteAlertmanagerMetrics()
m.Info.WithLabelValues(metrics.ModeRemoteOnly).Set(1)
// This function will be used by the MOA to create new Alertmanagers.
override := notifier.WithAlertmanagerOverride(func(_ notifier.OrgAlertmanagerFactory) notifier.OrgAlertmanagerFactory {
return func(ctx context.Context, orgID int64) (notifier.Alertmanager, error) {
// Create remote Alertmanager.
cfg := remote.AlertmanagerConfig{
BasicAuthPassword: ng.Cfg.UnifiedAlerting.RemoteAlertmanager.Password,
DefaultConfig: ng.Cfg.UnifiedAlerting.DefaultConfiguration,
OrgID: orgID,
TenantID: ng.Cfg.UnifiedAlerting.RemoteAlertmanager.TenantID,
URL: ng.Cfg.UnifiedAlerting.RemoteAlertmanager.URL,
PromoteConfig: true,
}
remoteAM, err := createRemoteAlertmanager(cfg, ng.KVStore, ng.SecretsService.Decrypt, m)
if err != nil {
moaLogger.Error("Failed to create remote Alertmanager", "err", err)
return nil, err
}
return remoteAM, nil
}
})
overrides = append(overrides, override)
case remotePrimary:
ng.Log.Warn("Only remote secondary mode is supported at the moment, falling back to remote secondary")
fallthrough