Expose Memberlist status page on MemberlistKV module init (#6322)

* Expose Memberlist status page on MemberlistKV module init

Signed-off-by: JordanRushing <rushing.jordan@gmail.com>

* Add Server dependency to MemberlistKV module to properly serve status page

Signed-off-by: JordanRushing <rushing.jordan@gmail.com>

pkg/loki/loki.go

@@ -513,6 +513,7 @@ func (t *Loki) setupModuleManager() error {
 		All:                      {QueryScheduler, QueryFrontend, Querier, Ingester, Distributor, Ruler, Compactor},
 		Read:                     {QueryScheduler, QueryFrontend, Querier, Ruler, Compactor},
 		Write:                    {Ingester, Distributor},
+		MemberlistKV:             {Server},
 	}
 
 	// Add IngesterQuerier as a dependency for store when target is either querier, ruler, or read.

pkg/loki/modules.go

@@ -836,6 +836,8 @@ func (t *Loki) initMemberlistKV() (services.Service, error) {
 	t.Cfg.QueryScheduler.SchedulerRing.KVStore.MemberlistKV = t.MemberlistKV.GetMemberlistKV
 	t.Cfg.Ruler.Ring.KVStore.MemberlistKV = t.MemberlistKV.GetMemberlistKV
 
+	t.Server.HTTP.Handle("/memberlist", t.MemberlistKV)
+
 	return t.MemberlistKV, nil
 }