allow time interval for alert manager (#5102)

* allow time interval for alert manager

Signed-off-by: Yijie Qin <qinyijie@amazon.com>

* change log update

Signed-off-by: Yijie Qin <qinyijie@amazon.com>

* fix lint

Signed-off-by: Yijie Qin <qinyijie@amazon.com>

---------

Signed-off-by: Yijie Qin <qinyijie@amazon.com>

Author: qinxx108

CHANGELOG.md

@@ -29,6 +29,7 @@
 * [BUGFIX] Fixed ingesters with less tokens stuck in LEAVING. #5061
 * [BUGFIX] Tracing: Fix missing object storage span instrumentation. #5074
 * [BUGFIX] Ingester: Ingesters returning empty response for metadata APIs. #5081
+* [FEATURE] Alertmanager: Add support for time_intervals. #5102
 
 ## 1.14.0 2022-12-02
 

pkg/alertmanager/alertmanager.go

@@ -368,17 +368,21 @@ func (am *Alertmanager) ApplyConfig(userID string, conf *config.Config, rawCfg s
 		return nil
 	}
 
-	muteTimes := make(map[string][]timeinterval.TimeInterval, len(conf.MuteTimeIntervals))
+	timeIntervals := make(map[string][]timeinterval.TimeInterval, len(conf.MuteTimeIntervals)+len(conf.TimeIntervals))
 	for _, ti := range conf.MuteTimeIntervals {
-		muteTimes[ti.Name] = ti.TimeIntervals
+		timeIntervals[ti.Name] = ti.TimeIntervals
+	}
+
+	for _, ti := range conf.TimeIntervals {
+		timeIntervals[ti.Name] = ti.TimeIntervals
 	}
 
 	pipeline := am.pipelineBuilder.New(
 		integrationsMap,
 		waitFunc,
 		am.inhibitor,
 		silence.NewSilencer(am.silences, am.marker, am.logger),
-		muteTimes,
+		timeIntervals,
 		am.nflog,
 		am.state,
 	)