Alerting: Persist silence state immediately on Create/Delete (#84705)

* Alerting: Persist silence state immediately on Create/Delete

Persists the silence state to the kvstore immediately instead of waiting for the
 next maintenance run. This is used after Create/Delete to prevent silences from
 being lost when a new Alertmanager is started before the state has persisted.
 This can happen, for example, in a rolling deployment scenario.

* Fix test that requires real data

* Don't error if silence state persist fails, maintenance will correct

go.mod

@@ -47,7 +47,7 @@ require (
 	github.com/google/uuid v1.6.0 // @grafana/backend-platform
 	github.com/google/wire v0.5.0 // @grafana/backend-platform
 	github.com/gorilla/websocket v1.5.0 // @grafana/grafana-app-platform-squad
-	github.com/grafana/alerting v0.0.0-20240405171255-923446b51c2d // @grafana/alerting-squad-backend
+	github.com/grafana/alerting v0.0.0-20240409171830-e039a7f57a92 // @grafana/alerting-squad-backend
 	github.com/grafana/cuetsy v0.1.11 // @grafana/grafana-as-code
 	github.com/grafana/grafana-aws-sdk v0.25.0 // @grafana/aws-datasources
 	github.com/grafana/grafana-azure-sdk-go/v2 v2.0.1 // @grafana/partner-datasources

go.sum

@@ -2159,8 +2159,8 @@ github.com/gorilla/websocket v1.4.1/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/ad
 github.com/gorilla/websocket v1.4.2/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
 github.com/gorilla/websocket v1.5.0 h1:PPwGk2jz7EePpoHN/+ClbZu8SPxiqlu12wZP/3sWmnc=
 github.com/gorilla/websocket v1.5.0/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
-github.com/grafana/alerting v0.0.0-20240405171255-923446b51c2d h1:wu7A06T+xFTDGUfrR6oVdM3k+vp1MLRjsXd7dckHfGA=
-github.com/grafana/alerting v0.0.0-20240405171255-923446b51c2d/go.mod h1:TfSmMRify3r/yFbVM7tJGT44qUkBQ3ZWka8jwSUHQL4=
+github.com/grafana/alerting v0.0.0-20240409171830-e039a7f57a92 h1:DfzT76QLAyvJZiQMEnHTRRkQsvOF0S2jH9bO1OIX5yw=
+github.com/grafana/alerting v0.0.0-20240409171830-e039a7f57a92/go.mod h1:jriidrGFnZWvAn3xw/BOoCkJbGWnncuojMi9jq6xxwE=
 github.com/grafana/authlib v0.0.0-20240328140636-a7388d0bac72 h1:lGEuhD/KhhN1OiPrvwQejl9Lg8MvaHdj3lHZNref4is=
 github.com/grafana/authlib v0.0.0-20240328140636-a7388d0bac72/go.mod h1:86rRD5P6u2JPWtNWTMOlqlU+YMv2fUvVz/DomA6L7w4=
 github.com/grafana/codejen v0.0.3 h1:tAWxoTUuhgmEqxJPOLtJoxlPBbMULFwKFOcRsPRPXDw=

pkg/services/ngalert/api/api_alertmanager.go

@@ -65,11 +65,6 @@ func (srv AlertmanagerSrv) RouteCreateSilence(c *contextmodel.ReqContext, postab
 		return ErrResp(http.StatusBadRequest, err, "silence failed validation")
 	}
 
-	am, errResp := srv.AlertmanagerFor(c.SignedInUser.GetOrgID())
-	if errResp != nil {
-		return errResp
-	}
-
 	action := accesscontrol.ActionAlertingInstanceUpdate
 	if postableSilence.ID == "" {
 		action = accesscontrol.ActionAlertingInstanceCreate
@@ -83,8 +78,15 @@ func (srv AlertmanagerSrv) RouteCreateSilence(c *contextmodel.ReqContext, postab
 		return response.Err(authz.NewAuthorizationErrorWithPermissions(fmt.Sprintf("%s silences", errAction), evaluator))
 	}
 
-	silenceID, err := am.CreateSilence(c.Req.Context(), &postableSilence)
+	silenceID, err := srv.mam.CreateSilence(c.Req.Context(), c.SignedInUser.GetOrgID(), &postableSilence)
 	if err != nil {
+		if errors.Is(err, notifier.ErrNoAlertmanagerForOrg) {
+			return ErrResp(http.StatusNotFound, err, "")
+		}
+		if errors.Is(err, notifier.ErrAlertmanagerNotReady) {
+			return ErrResp(http.StatusConflict, err, "")
+		}
+
 		if errors.Is(err, alertingNotify.ErrSilenceNotFound) {
 			return ErrResp(http.StatusNotFound, err, "")
 		}
@@ -115,12 +117,13 @@ func (srv AlertmanagerSrv) RouteDeleteAlertingConfig(c *contextmodel.ReqContext)
 }
 
 func (srv AlertmanagerSrv) RouteDeleteSilence(c *contextmodel.ReqContext, silenceID string) response.Response {
-	am, errResp := srv.AlertmanagerFor(c.SignedInUser.GetOrgID())
-	if errResp != nil {
-		return errResp
-	}
-
-	if err := am.DeleteSilence(c.Req.Context(), silenceID); err != nil {
+	if err := srv.mam.DeleteSilence(c.Req.Context(), c.SignedInUser.GetOrgID(), silenceID); err != nil {
+		if errors.Is(err, notifier.ErrNoAlertmanagerForOrg) {
+			return ErrResp(http.StatusNotFound, err, "")
+		}
+		if errors.Is(err, notifier.ErrAlertmanagerNotReady) {
+			return ErrResp(http.StatusConflict, err, "")
+		}
 		if errors.Is(err, alertingNotify.ErrSilenceNotFound) {
 			return ErrResp(http.StatusNotFound, err, "")
 		}

pkg/services/ngalert/notifier/alertmanager.go

@@ -417,6 +417,11 @@ func (am *alertmanager) PutAlerts(_ context.Context, postableAlerts apimodels.Po
 	return am.Base.PutAlerts(alerts)
 }
 
+// SilenceState returns the current internal state of silences.
+func (am *alertmanager) SilenceState(_ context.Context) (alertingNotify.SilenceState, error) {
+	return am.Base.SilenceState()
+}
+
 // AlertValidationError is the error capturing the validation errors
 // faced on the alerts.
 type AlertValidationError struct {

pkg/services/ngalert/notifier/alertmanager_mock/Alertmanager.go

@@ -711,6 +711,60 @@ func (_c *AlertmanagerMock_SaveAndApplyDefaultConfig_Call) RunAndReturn(run func
 	return _c
 }
 
+// SilenceState provides a mock function with given fields: _a0
+func (_m *AlertmanagerMock) SilenceState(_a0 context.Context) (notify.SilenceState, error) {
+	ret := _m.Called(_a0)
+
+	var r0 notify.SilenceState
+	var r1 error
+	if rf, ok := ret.Get(0).(func(context.Context) (notify.SilenceState, error)); ok {
+		return rf(_a0)
+	}
+	if rf, ok := ret.Get(0).(func(context.Context) notify.SilenceState); ok {
+		r0 = rf(_a0)
+	} else {
+		if ret.Get(0) != nil {
+			r0 = ret.Get(0).(notify.SilenceState)
+		}
+	}
+
+	if rf, ok := ret.Get(1).(func(context.Context) error); ok {
+		r1 = rf(_a0)
+	} else {
+		r1 = ret.Error(1)
+	}
+
+	return r0, r1
+}
+
+// AlertmanagerMock_SilenceState_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'SilenceState'
+type AlertmanagerMock_SilenceState_Call struct {
+	*mock.Call
+}
+
+// SilenceState is a helper method to define mock.On call
+//   - _a0 context.Context
+func (_e *AlertmanagerMock_Expecter) SilenceState(_a0 interface{}) *AlertmanagerMock_SilenceState_Call {
+	return &AlertmanagerMock_SilenceState_Call{Call: _e.mock.On("SilenceState", _a0)}
+}
+
+func (_c *AlertmanagerMock_SilenceState_Call) Run(run func(_a0 context.Context)) *AlertmanagerMock_SilenceState_Call {
+	_c.Call.Run(func(args mock.Arguments) {
+		run(args[0].(context.Context))
+	})
+	return _c
+}
+
+func (_c *AlertmanagerMock_SilenceState_Call) Return(_a0 notify.SilenceState, _a1 error) *AlertmanagerMock_SilenceState_Call {
+	_c.Call.Return(_a0, _a1)
+	return _c
+}
+
+func (_c *AlertmanagerMock_SilenceState_Call) RunAndReturn(run func(context.Context) (notify.SilenceState, error)) *AlertmanagerMock_SilenceState_Call {
+	_c.Call.Return(run)
+	return _c
+}
+
 // StopAndWait provides a mock function with given fields:
 func (_m *AlertmanagerMock) StopAndWait() {
 	_m.Called()

pkg/services/ngalert/notifier/multiorg_alertmanager.go

@@ -6,9 +6,10 @@ import (
 	"sync"
 	"time"
 
-	alertingCluster "github.com/grafana/alerting/cluster"
 	"github.com/prometheus/client_golang/prometheus"
 
+	alertingCluster "github.com/grafana/alerting/cluster"
+
 	alertingNotify "github.com/grafana/alerting/notify"
 
 	"github.com/grafana/grafana/pkg/infra/kvstore"
@@ -42,6 +43,10 @@ type Alertmanager interface {
 	GetSilence(context.Context, string) (apimodels.GettableSilence, error)
 	ListSilences(context.Context, []string) (apimodels.GettableSilences, error)
 
+	// SilenceState returns the current state of silences in the Alertmanager. This is used to persist the state
+	// to the kvstore.
+	SilenceState(context.Context) (alertingNotify.SilenceState, error)
+
 	// Alerts
 	GetAlerts(ctx context.Context, active, silenced, inhibited bool, filter []string, receiver string) (apimodels.GettableAlerts, error)
 	GetAlertGroups(ctx context.Context, active, silenced, inhibited bool, filter []string, receiver string) (apimodels.AlertGroups, error)
@@ -395,6 +400,83 @@ func (moa *MultiOrgAlertmanager) AlertmanagerFor(orgID int64) (Alertmanager, err
 	return orgAM, nil
 }
 
+// CreateSilence creates a silence in the Alertmanager for the organization provided, returning the silence ID. It will
+// also persist the silence state to the kvstore immediately after creating the silence.
+func (moa *MultiOrgAlertmanager) CreateSilence(ctx context.Context, orgID int64, ps *alertingNotify.PostableSilence) (string, error) {
+	moa.alertmanagersMtx.RLock()
+	defer moa.alertmanagersMtx.RUnlock()
+
+	orgAM, existing := moa.alertmanagers[orgID]
+	if !existing {
+		return "", ErrNoAlertmanagerForOrg
+	}
+
+	if !orgAM.Ready() {
+		return "", ErrAlertmanagerNotReady
+	}
+
+	// Need to create the silence in the AM first to get the silence ID.
+	silenceID, err := orgAM.CreateSilence(ctx, ps)
+	if err != nil {
+		return "", err
+	}
+
+	err = moa.updateSilenceState(ctx, orgAM, orgID)
+	if err != nil {
+		moa.logger.Warn("Failed to persist silence state on create, will be corrected by next maintenance run", "orgID", orgID, "silenceID", silenceID, "error", err)
+	}
+
+	return silenceID, nil
+}
+
+// DeleteSilence deletes a silence in the Alertmanager for the organization provided. It will also persist the silence
+// state to the kvstore immediately after deleting the silence.
+func (moa *MultiOrgAlertmanager) DeleteSilence(ctx context.Context, orgID int64, silenceID string) error {
+	moa.alertmanagersMtx.RLock()
+	defer moa.alertmanagersMtx.RUnlock()
+
+	orgAM, existing := moa.alertmanagers[orgID]
+	if !existing {
+		return ErrNoAlertmanagerForOrg
+	}
+
+	if !orgAM.Ready() {
+		return ErrAlertmanagerNotReady
+	}
+
+	err := orgAM.DeleteSilence(ctx, silenceID)
+	if err != nil {
+		return err
+	}
+
+	err = moa.updateSilenceState(ctx, orgAM, orgID)
+	if err != nil {
+		moa.logger.Warn("Failed to persist silence state on delete, will be corrected by next maintenance run", "orgID", orgID, "silenceID", silenceID, "error", err)
+	}
+
+	return nil
+}
+
+// updateSilenceState persists the silence state to the kvstore immediately instead of waiting for the next maintenance
+// run. This is used after Create/Delete to prevent silences from being lost when a new Alertmanager is started before
+// the state has persisted. This can happen, for example, in a rolling deployment scenario.
+func (moa *MultiOrgAlertmanager) updateSilenceState(ctx context.Context, orgAM Alertmanager, orgID int64) error {
+	// Collect the internal silence state from the AM.
+	// TODO: Currently, we rely on the AM itself for the persisted silence state representation. Preferably, we would
+	//  define the state ourselves and persist it in a format that is easy to guarantee consistency for writes to
+	//  individual silences. In addition to the consistency benefits, this would also allow us to avoid the need for
+	//  a network request to the AM to get the state in the case of remote alertmanagers.
+	silences, err := orgAM.SilenceState(ctx)
+	if err != nil {
+		return err
+	}
+
+	// Persist to kvstore.
+	fs := NewFileStore(orgID, moa.kvStore)
+	_, err = fs.SaveSilences(ctx, silences)
+	return err
+}
+
 // NilPeer and NilChannel implements the Alertmanager clustering interface.
 type NilPeer struct{}
 

pkg/services/ngalert/notifier/multiorg_alertmanager_remote_test.go

@@ -126,8 +126,8 @@ func TestMultiorgAlertmanager_RemoteSecondaryMode(t *testing.T) {
 			OrgID:                     1,
 			LastApplied:               time.Now().Unix(),
 		}))
-		require.NoError(t, kvStore.Set(ctx, 1, "alertmanager", notifier.SilencesFilename, "dGVzdAo="))        // base64-encoded string "test"
-		require.NoError(t, kvStore.Set(ctx, 1, "alertmanager", notifier.NotificationLogFilename, "dGVzdAo=")) // base64-encoded string "test"
+		require.NoError(t, kvStore.Set(ctx, 1, "alertmanager", notifier.SilencesFilename, "lwEKhgEKATISFxIJYWxlcnRuYW1lGgp0ZXN0X2FsZXJ0EiMSDmdyYWZhbmFfZm9sZGVyGhF0ZXN0X2FsZXJ0X2ZvbGRlchoMCN2CkbAGEJbKrMsDIgwI7Z6RsAYQlsqsywMqCwiAkrjDmP7///8BQgxHcmFmYW5hIFRlc3RKDFRlc3QgU2lsZW5jZRIMCO2ekbAGEJbKrMsDlwEKhgEKATESFxIJYWxlcnRuYW1lGgp0ZXN0X2FsZXJ0EiMSDmdyYWZhbmFfZm9sZGVyGhF0ZXN0X2FsZXJ0X2ZvbGRlchoMCN2CkbAGEJbKrMsDIgwI7Z6RsAYQlsqsywMqCwiAkrjDmP7///8BQgxHcmFmYW5hIFRlc3RKDFRlc3QgU2lsZW5jZRIMCO2ekbAGEJbKrMsD"))
+		require.NoError(t, kvStore.Set(ctx, 1, "alertmanager", notifier.NotificationLogFilename, "OgoqCgZncm91cDISEgoJcmVjZWl2ZXIyEgV0ZXN0MyoMCLSDkbAGEMvaofYCEgwIxJ+RsAYQy9qh9gI6CioKBmdyb3VwMRISCglyZWNlaXZlcjESBXRlc3QzKgwItIORsAYQy9qh9gISDAjEn5GwBhDL2qH2Ag=="))
 
 		// The sync interval (10s) has not elapsed yet, syncing should have no effect.
 		require.NoError(t, moa.LoadAndSyncAlertmanagersForOrgs(ctx))
@@ -151,8 +151,8 @@ func TestMultiorgAlertmanager_RemoteSecondaryMode(t *testing.T) {
 			OrgID:                     1,
 			LastApplied:               time.Now().Unix(),
 		}))
-		require.NoError(t, kvStore.Set(ctx, 1, "alertmanager", notifier.SilencesFilename, "dGVzdC0yCg=="))        // base64-encoded string "test-2"
-		require.NoError(t, kvStore.Set(ctx, 1, "alertmanager", notifier.NotificationLogFilename, "dGVzdC0yCg==")) // base64-encoded string "test-2"
+		require.NoError(t, kvStore.Set(ctx, 1, "alertmanager", notifier.SilencesFilename, "lwEKhgEKAWESFxIJYWxlcnRuYW1lGgp0ZXN0X2FsZXJ0EiMSDmdyYWZhbmFfZm9sZGVyGhF0ZXN0X2FsZXJ0X2ZvbGRlchoMCPuEkbAGEK3AhM8CIgwIi6GRsAYQrcCEzwIqCwiAkrjDmP7///8BQgxHcmFmYW5hIFRlc3RKDFRlc3QgU2lsZW5jZRIMCIuhkbAGEK3AhM8ClwEKhgEKAWISFxIJYWxlcnRuYW1lGgp0ZXN0X2FsZXJ0EiMSDmdyYWZhbmFfZm9sZGVyGhF0ZXN0X2FsZXJ0X2ZvbGRlchoMCPuEkbAGEK3AhM8CIgwIi6GRsAYQrcCEzwIqCwiAkrjDmP7///8BQgxHcmFmYW5hIFRlc3RKDFRlc3QgU2lsZW5jZRIMCIuhkbAGEK3AhM8C"))
+		require.NoError(t, kvStore.Set(ctx, 1, "alertmanager", notifier.NotificationLogFilename, "OAopCgZncm91cEESEgoJcmVjZWl2ZXJBEgV0ZXN0MyoLCNmEkbAGEOzO0BUSCwjpoJGwBhDsztAVOAopCgZncm91cEISEgoJcmVjZWl2ZXJCEgV0ZXN0MyoLCNmEkbAGEOzO0BUSCwjpoJGwBhDsztAV"))
 
 		// Both state and config should be updated when shutting the Alertmanager down.
 		moa.StopAndWait()

pkg/services/ngalert/notifier/multiorg_alertmanager_test.go

@@ -6,6 +6,8 @@ import (
 	"testing"
 	"time"
 
+	alertingNotify "github.com/grafana/alerting/notify"
+	"github.com/prometheus/alertmanager/types"
 	"github.com/prometheus/client_golang/prometheus"
 	"github.com/prometheus/client_golang/prometheus/testutil"
 	"github.com/stretchr/testify/require"
@@ -22,18 +24,7 @@ import (
 )
 
 func TestMultiOrgAlertmanager_SyncAlertmanagersForOrgs(t *testing.T) {
-	configStore := NewFakeConfigStore(t, map[int64]*models.AlertConfiguration{})
-	orgStore := &FakeOrgStore{
-		orgs: []int64{1, 2, 3},
-	}
-
 	tmpDir := t.TempDir()
-	kvStore := ngfakes.NewFakeKVStore(t)
-	provStore := ngfakes.NewFakeProvisioningStore()
-	secretsService := secretsManager.SetupTestService(t, fakes.NewFakeSecretsStore())
-	decryptFn := secretsService.GetDecryptedValue
-	reg := prometheus.NewPedanticRegistry()
-	m := metrics.NewNGAlert(reg)
 	cfg := &setting.Cfg{
 		DataPath: tmpDir,
 		UnifiedAlerting: setting.UnifiedAlertingSettings{
@@ -42,8 +33,9 @@ func TestMultiOrgAlertmanager_SyncAlertmanagersForOrgs(t *testing.T) {
 			DisabledOrgs:                   map[int64]struct{}{5: {}},
 		}, // do not poll in tests.
 	}
-	mam, err := NewMultiOrgAlertmanager(cfg, configStore, orgStore, kvStore, provStore, decryptFn, m.GetMultiOrgAlertmanagerMetrics(), nil, log.New("testlogger"), secretsService, featuremgmt.WithFeatures())
-	require.NoError(t, err)
+	mam := setupMam(t, cfg)
+	reg := mam.metrics.Registerer.(*prometheus.Registry)
+	orgStore := mam.orgStore.(*FakeOrgStore)
 	ctx := context.Background()
 
 	// Ensure that one Alertmanager is created per org.
@@ -61,7 +53,7 @@ grafana_alerting_discovered_configurations 3
 
 		// Configurations should be marked as successfully applied.
 		for _, org := range orgStore.orgs {
-			configs, err := configStore.GetAppliedConfigurations(ctx, org, 10)
+			configs, err := mam.configStore.GetAppliedConfigurations(ctx, org, 10)
 			require.NoError(t, err)
 			require.Len(t, configs, 1)
 		}
@@ -106,58 +98,40 @@ grafana_alerting_discovered_configurations 4
 		orgID := int64(6)
 
 		// Populate the kvstore with orphaned records.
-		err = kvStore.Set(ctx, orgID, KVNamespace, SilencesFilename, "file_1")
+		err := mam.kvStore.Set(ctx, orgID, KVNamespace, SilencesFilename, "file_1")
 		require.NoError(t, err)
 
-		err = kvStore.Set(ctx, orgID, KVNamespace, NotificationLogFilename, "file_1")
+		err = mam.kvStore.Set(ctx, orgID, KVNamespace, NotificationLogFilename, "file_1")
 		require.NoError(t, err)
 
 		// Now re run the sync job once.
 		require.NoError(t, mam.LoadAndSyncAlertmanagersForOrgs(ctx))
 
 		// The organization kvstore records should be gone by now.
-		_, exists, _ := kvStore.Get(ctx, orgID, KVNamespace, SilencesFilename)
+		_, exists, _ := mam.kvStore.Get(ctx, orgID, KVNamespace, SilencesFilename)
 		require.False(t, exists)
 
-		_, exists, _ = kvStore.Get(ctx, orgID, KVNamespace, NotificationLogFilename)
+		_, exists, _ = mam.kvStore.Get(ctx, orgID, KVNamespace, NotificationLogFilename)
 		require.False(t, exists)
 	}
 }
 
 func TestMultiOrgAlertmanager_SyncAlertmanagersForOrgsWithFailures(t *testing.T) {
+	mam := setupMam(t, nil)
+	ctx := context.Background()
+
 	// Include a broken configuration for organization 2.
 	var orgWithBadConfig int64 = 2
-	configStore := NewFakeConfigStore(t, map[int64]*models.AlertConfiguration{
+	mam.configStore = NewFakeConfigStore(t, map[int64]*models.AlertConfiguration{
 		2: {AlertmanagerConfiguration: brokenConfig, OrgID: orgWithBadConfig},
 	})
 
-	orgs := []int64{1, 2, 3}
-	orgStore := &FakeOrgStore{
-		orgs: orgs,
-	}
-
-	tmpDir := t.TempDir()
-	kvStore := ngfakes.NewFakeKVStore(t)
-	provStore := ngfakes.NewFakeProvisioningStore()
-	secretsService := secretsManager.SetupTestService(t, fakes.NewFakeSecretsStore())
-	decryptFn := secretsService.GetDecryptedValue
-	reg := prometheus.NewPedanticRegistry()
-	m := metrics.NewNGAlert(reg)
-	cfg := &setting.Cfg{
-		DataPath: tmpDir,
-		UnifiedAlerting: setting.UnifiedAlertingSettings{
-			AlertmanagerConfigPollInterval: 10 * time.Minute,
-			DefaultConfiguration:           setting.GetAlertmanagerDefaultConfiguration(),
-		}, // do not poll in tests.
-	}
-	mam, err := NewMultiOrgAlertmanager(cfg, configStore, orgStore, kvStore, provStore, decryptFn, m.GetMultiOrgAlertmanagerMetrics(), nil, log.New("testlogger"), secretsService, featuremgmt.WithFeatures())
+	orgs, err := mam.orgStore.GetOrgs(ctx)
 	require.NoError(t, err)
-	ctx := context.Background()
-
 	// No successfully applied configurations should be found at first.
 	{
 		for _, org := range orgs {
-			configs, err := configStore.GetAppliedConfigurations(ctx, org, 10)
+			configs, err := mam.configStore.GetAppliedConfigurations(ctx, org, 10)
 			require.NoError(t, err)
 			require.Len(t, configs, 0)
 		}
@@ -173,7 +147,7 @@ func TestMultiOrgAlertmanager_SyncAlertmanagersForOrgsWithFailures(t *testing.T)
 
 		// Configurations should be marked as successfully applied for all orgs except for org 2.
 		for _, org := range orgs {
-			configs, err := configStore.GetAppliedConfigurations(ctx, org, 10)
+			configs, err := mam.configStore.GetAppliedConfigurations(ctx, org, 10)
 			require.NoError(t, err)
 			if org == orgWithBadConfig {
 				require.Len(t, configs, 0)
@@ -193,7 +167,7 @@ func TestMultiOrgAlertmanager_SyncAlertmanagersForOrgsWithFailures(t *testing.T)
 
 		// The configuration should still be marked as successfully applied for all orgs except for org 2.
 		for _, org := range orgs {
-			configs, err := configStore.GetAppliedConfigurations(ctx, org, 10)
+			configs, err := mam.configStore.GetAppliedConfigurations(ctx, org, 10)
 			require.NoError(t, err)
 			if org == orgWithBadConfig {
 				require.Len(t, configs, 0)
@@ -205,7 +179,7 @@ func TestMultiOrgAlertmanager_SyncAlertmanagersForOrgsWithFailures(t *testing.T)
 
 	// If we fix the configuration, it becomes ready.
 	{
-		configStore.configs = map[int64]*models.AlertConfiguration{} // It'll apply the default config.
+		mam.configStore.(*fakeConfigStore).configs = map[int64]*models.AlertConfiguration{} // It'll apply the default config.
 		require.NoError(t, mam.LoadAndSyncAlertmanagersForOrgs(ctx))
 		require.Len(t, mam.alertmanagers, 3)
 		require.True(t, mam.alertmanagers[1].Ready())
@@ -214,7 +188,7 @@ func TestMultiOrgAlertmanager_SyncAlertmanagersForOrgsWithFailures(t *testing.T)
 
 		// All configurations should be marked as successfully applied.
 		for _, org := range orgs {
-			configs, err := configStore.GetAppliedConfigurations(ctx, org, 10)
+			configs, err := mam.configStore.GetAppliedConfigurations(ctx, org, 10)
 			require.NoError(t, err)
 			require.NotEqual(t, 0, len(configs))
 		}
@@ -222,23 +196,7 @@ func TestMultiOrgAlertmanager_SyncAlertmanagersForOrgsWithFailures(t *testing.T)
 }
 
 func TestMultiOrgAlertmanager_AlertmanagerFor(t *testing.T) {
-	configStore := NewFakeConfigStore(t, map[int64]*models.AlertConfiguration{})
-	orgStore := &FakeOrgStore{
-		orgs: []int64{1, 2, 3},
-	}
-	tmpDir := t.TempDir()
-	cfg := &setting.Cfg{
-		DataPath:        tmpDir,
-		UnifiedAlerting: setting.UnifiedAlertingSettings{AlertmanagerConfigPollInterval: 3 * time.Minute, DefaultConfiguration: setting.GetAlertmanagerDefaultConfiguration()}, // do not poll in tests.
-	}
-	kvStore := ngfakes.NewFakeKVStore(t)
-	provStore := ngfakes.NewFakeProvisioningStore()
-	secretsService := secretsManager.SetupTestService(t, fakes.NewFakeSecretsStore())
-	decryptFn := secretsService.GetDecryptedValue
-	reg := prometheus.NewPedanticRegistry()
-	m := metrics.NewNGAlert(reg)
-	mam, err := NewMultiOrgAlertmanager(cfg, configStore, orgStore, kvStore, provStore, decryptFn, m.GetMultiOrgAlertmanagerMetrics(), nil, log.New("testlogger"), secretsService, featuremgmt.WithFeatures())
-	require.NoError(t, err)
+	mam := setupMam(t, nil)
 	ctx := context.Background()
 
 	// Ensure that one Alertmanagers is created per org.
@@ -264,7 +222,7 @@ func TestMultiOrgAlertmanager_AlertmanagerFor(t *testing.T) {
 	}
 
 	// Let's now remove the previous queried organization.
-	orgStore.orgs = []int64{1, 3}
+	mam.orgStore.(*FakeOrgStore).orgs = []int64{1, 3}
 	require.NoError(t, mam.LoadAndSyncAlertmanagersForOrgs(ctx))
 	{
 		_, err := mam.AlertmanagerFor(2)
@@ -273,24 +231,7 @@ func TestMultiOrgAlertmanager_AlertmanagerFor(t *testing.T) {
 }
 
 func TestMultiOrgAlertmanager_ActivateHistoricalConfiguration(t *testing.T) {
-	configStore := NewFakeConfigStore(t, map[int64]*models.AlertConfiguration{})
-	orgStore := &FakeOrgStore{
-		orgs: []int64{1, 2, 3},
-	}
-	tmpDir := t.TempDir()
-	defaultConfig := `{"template_files":null,"alertmanager_config":{"route":{"receiver":"grafana-default-email","group_by":["grafana_folder","alertname"]},"templates":null,"receivers":[{"name":"grafana-default-email","grafana_managed_receiver_configs":[{"uid":"","name":"email receiver","type":"email","disableResolveMessage":false,"settings":{"addresses":"\u003cexample@email.com\u003e"},"secureSettings":null}]}]}}`
-	cfg := &setting.Cfg{
-		DataPath:        tmpDir,
-		UnifiedAlerting: setting.UnifiedAlertingSettings{AlertmanagerConfigPollInterval: 3 * time.Minute, DefaultConfiguration: defaultConfig}, // do not poll in tests.
-	}
-	kvStore := ngfakes.NewFakeKVStore(t)
-	provStore := ngfakes.NewFakeProvisioningStore()
-	secretsService := secretsManager.SetupTestService(t, fakes.NewFakeSecretsStore())
-	decryptFn := secretsService.GetDecryptedValue
-	reg := prometheus.NewPedanticRegistry()
-	m := metrics.NewNGAlert(reg)
-	mam, err := NewMultiOrgAlertmanager(cfg, configStore, orgStore, kvStore, provStore, decryptFn, m.GetMultiOrgAlertmanagerMetrics(), nil, log.New("testlogger"), secretsService, featuremgmt.WithFeatures())
-	require.NoError(t, err)
+	mam := setupMam(t, nil)
 	ctx := context.Background()
 
 	// Ensure that one Alertmanager is created per org.
@@ -339,9 +280,141 @@ func TestMultiOrgAlertmanager_ActivateHistoricalConfiguration(t *testing.T) {
 	// Verify that the org has the old default config.
 	cfgs, err = mam.getLatestConfigs(ctx)
 	require.NoError(t, err)
-	require.Equal(t, defaultConfig, cfgs[2].AlertmanagerConfiguration)
+	require.JSONEq(t, defaultConfig, cfgs[2].AlertmanagerConfiguration)
 }
 
+func TestMultiOrgAlertmanager_Silences(t *testing.T) {
+	mam := setupMam(t, nil)
+	ctx := context.Background()
+
+	// Ensure that one Alertmanager is created per org.
+	{
+		require.NoError(t, mam.LoadAndSyncAlertmanagersForOrgs(ctx))
+		require.Len(t, mam.alertmanagers, 3)
+	}
+
+	am, err := mam.AlertmanagerFor(1)
+	require.NoError(t, err)
+
+	// Confirm no silences.
+	silences, err := am.ListSilences(ctx, []string{})
+	require.NoError(t, err)
+	require.Len(t, silences, 0)
+
+	// Confirm empty state.
+	state, err := am.SilenceState(ctx)
+	require.NoError(t, err)
+	require.Len(t, state, 0)
+
+	// Confirm empty kvstore.
+	v, ok, err := mam.kvStore.Get(ctx, 1, KVNamespace, SilencesFilename)
+	require.NoError(t, err)
+	require.False(t, ok)
+	require.Empty(t, v)
+
+	// Create 2 silences.
+	sid, err := mam.CreateSilence(ctx, 1, GenSilence("test"))
+	require.NoError(t, err)
+	require.NotEmpty(t, sid)
+	sid2, err := mam.CreateSilence(ctx, 1, GenSilence("test"))
+	require.NoError(t, err)
+	require.NotEmpty(t, sid2)
+
+	// Confirm 2 silences.
+	silences, err = am.ListSilences(ctx, []string{})
+	require.NoError(t, err)
+	require.Len(t, silences, 2)
+
+	// Confirm 2 states.
+	state, err = am.SilenceState(ctx)
+	require.NoError(t, err)
+	require.Len(t, state, 2)
+
+	// Confirm 2 silences in the kvstore.
+	v, ok, err = mam.kvStore.Get(ctx, 1, KVNamespace, SilencesFilename)
+	require.NoError(t, err)
+	require.True(t, ok)
+	decoded, err := decode(v)
+	require.NoError(t, err)
+	state, err = alertingNotify.DecodeState(bytes.NewReader(decoded))
+	require.NoError(t, err)
+	require.Len(t, state, 2)
+
+	// Delete silence.
+	err = mam.DeleteSilence(ctx, 1, sid)
+	require.NoError(t, err)
+
+	// Confirm silence is expired in memory.
+	silence, err := am.GetSilence(ctx, sid)
+	require.NoError(t, err)
+	require.EqualValues(t, types.SilenceStateExpired, *silence.Status.State)
+
+	// Confirm silence is expired in kvstore.
+	v, ok, err = mam.kvStore.Get(ctx, 1, KVNamespace, SilencesFilename)
+	require.NoError(t, err)
+	require.True(t, ok)
+	decoded, err = decode(v)
+	require.NoError(t, err)
+	state, err = alertingNotify.DecodeState(bytes.NewReader(decoded))
+	require.NoError(t, err)
+	require.True(t, time.Now().After(state[sid].Silence.EndsAt)) // Expired.
+}
+
+func setupMam(t *testing.T, cfg *setting.Cfg) *MultiOrgAlertmanager {
+	if cfg == nil {
+		tmpDir := t.TempDir()
+		cfg = &setting.Cfg{
+			DataPath:        tmpDir,
+			UnifiedAlerting: setting.UnifiedAlertingSettings{AlertmanagerConfigPollInterval: 3 * time.Minute, DefaultConfiguration: defaultConfig}, // do not poll in tests.
+		}
+	}
+
+	cs := NewFakeConfigStore(t, map[int64]*models.AlertConfiguration{})
+	orgStore := &FakeOrgStore{
+		orgs: []int64{1, 2, 3},
+	}
+	kvStore := ngfakes.NewFakeKVStore(t)
+	provStore := ngfakes.NewFakeProvisioningStore()
+	secretsService := secretsManager.SetupTestService(t, fakes.NewFakeSecretsStore())
+	decryptFn := secretsService.GetDecryptedValue
+	reg := prometheus.NewPedanticRegistry()
+	m := metrics.NewNGAlert(reg)
+	mam, err := NewMultiOrgAlertmanager(cfg, cs, orgStore, kvStore, provStore, decryptFn, m.GetMultiOrgAlertmanagerMetrics(), nil, log.New("testlogger"), secretsService, featuremgmt.WithFeatures())
+	require.NoError(t, err)
+	return mam
+}
+
+var defaultConfig = `
+{
+	"template_files": null,
+	"alertmanager_config": {
+		"route": {
+			"receiver": "grafana-default-email",
+			"group_by": [
+				"grafana_folder",
+				"alertname"
+			]
+		},
+		"templates": null,
+		"receivers": [
+			{
+				"name": "grafana-default-email",
+				"grafana_managed_receiver_configs": [
+					{
+						"uid": "",
+						"name": "email receiver",
+						"type": "email",
+						"disableResolveMessage": false,
+						"settings": {
+							"addresses": "\u003cexample@email.com\u003e"},
+						"secureSettings": null
+					}
+				]
+			}
+		]
+	}
+}`
+
 var brokenConfig = `
 	"alertmanager_config": {
 		"route": {

pkg/services/ngalert/notifier/testing.go

@@ -7,14 +7,18 @@ import (
 	"errors"
 	"fmt"
 	"io"
+	"math/rand"
 	"testing"
 	"time"
 
+	"github.com/go-openapi/strfmt"
 	"github.com/matttproud/golang_protobuf_extensions/pbutil"
+	amv2 "github.com/prometheus/alertmanager/api/v2/models"
 	"github.com/prometheus/alertmanager/nflog/nflogpb"
 	"github.com/prometheus/alertmanager/silence/silencepb"
 	"github.com/prometheus/common/model"
 
+	apimodels "github.com/grafana/grafana/pkg/services/ngalert/api/tooling/definitions"
 	"github.com/grafana/grafana/pkg/services/ngalert/models"
 	"github.com/grafana/grafana/pkg/services/ngalert/store"
 
@@ -357,3 +361,24 @@ func createNotificationLog(groupKey string, receiverName string, sentAt, expires
 		ExpiresAt: expiresAt,
 	}
 }
+
+func GenSilence(createdBy string) *apimodels.PostableSilence {
+	starts := strfmt.DateTime(time.Now().Add(time.Duration(rand.Int63n(9)+1) * time.Second))
+	ends := strfmt.DateTime(time.Now().Add(time.Duration(rand.Int63n(9)+10) * time.Second))
+	comment := "test comment"
+	isEqual := true
+	name := "test"
+	value := "test"
+	isRegex := false
+	matchers := amv2.Matchers{&amv2.Matcher{IsEqual: &isEqual, Name: &name, Value: &value, IsRegex: &isRegex}}
+
+	return &apimodels.PostableSilence{
+		Silence: amv2.Silence{
+			Comment:   &comment,
+			CreatedBy: &createdBy,
+			Matchers:  matchers,
+			StartsAt:  &starts,
+			EndsAt:    &ends,
+		},
+	}
+}

pkg/services/ngalert/remote/alertmanager.go

@@ -8,6 +8,7 @@ import (
 	"fmt"
 	"net/http"
 	"net/url"
+	"strings"
 
 	"github.com/go-openapi/strfmt"
 	amalert "github.com/prometheus/alertmanager/api/v2/client/alert"
@@ -15,6 +16,9 @@ import (
 	amreceiver "github.com/prometheus/alertmanager/api/v2/client/receiver"
 	amsilence "github.com/prometheus/alertmanager/api/v2/client/silence"
 
+	alertingClusterPB "github.com/grafana/alerting/cluster/clusterpb"
+	alertingNotify "github.com/grafana/alerting/notify"
+
 	"github.com/grafana/grafana/pkg/infra/log"
 	apimodels "github.com/grafana/grafana/pkg/services/ngalert/api/tooling/definitions"
 	"github.com/grafana/grafana/pkg/services/ngalert/metrics"
@@ -22,8 +26,6 @@ import (
 	"github.com/grafana/grafana/pkg/services/ngalert/notifier"
 	remoteClient "github.com/grafana/grafana/pkg/services/ngalert/remote/client"
 	"github.com/grafana/grafana/pkg/services/ngalert/sender"
-
-	alertingClusterPB "github.com/grafana/alerting/cluster/clusterpb"
 )
 
 type stateStore interface {
@@ -401,15 +403,30 @@ func (am *Alertmanager) Ready() bool {
 	return am.ready
 }
 
+// SilenceState returns the Alertmanager's silence state as a SilenceState. Currently, does not retrieve the state
+// remotely and instead uses the value from the state store.
+func (am *Alertmanager) SilenceState(ctx context.Context) (alertingNotify.SilenceState, error) {
+	silences, err := am.state.GetSilences(ctx)
+	if err != nil {
+		return nil, fmt.Errorf("error getting silences: %w", err)
+	}
+
+	return alertingNotify.DecodeState(strings.NewReader(silences))
+}
+
 // getFullState returns a base64-encoded protobuf message representing the Alertmanager's internal state.
 func (am *Alertmanager) getFullState(ctx context.Context) (string, error) {
 	var parts []alertingClusterPB.Part
 
-	silences, err := am.state.GetSilences(ctx)
+	state, err := am.SilenceState(ctx)
 	if err != nil {
 		return "", fmt.Errorf("error getting silences: %w", err)
 	}
-	parts = append(parts, alertingClusterPB.Part{Key: notifier.SilencesFilename, Data: []byte(silences)})
+	b, err := state.MarshalBinary()
+	if err != nil {
+		return "", fmt.Errorf("error marshalling silences: %w", err)
+	}
+	parts = append(parts, alertingClusterPB.Part{Key: notifier.SilencesFilename, Data: b})
 
 	notificationLog, err := am.state.GetNotificationLog(ctx)
 	if err != nil {
@@ -420,7 +437,7 @@ func (am *Alertmanager) getFullState(ctx context.Context) (string, error) {
 	fs := alertingClusterPB.FullState{
 		Parts: parts,
 	}
-	b, err := fs.Marshal()
+	b, err = fs.Marshal()
 	if err != nil {
 		return "", fmt.Errorf("error marshaling full state: %w", err)
 	}

pkg/services/ngalert/remote/alertmanager_test.go

@@ -8,7 +8,6 @@ import (
 	"errors"
 	"fmt"
 	"io"
-	"math/rand"
 	"net/http"
 	"net/http/httptest"
 	"os"
@@ -40,6 +39,12 @@ import (
 const testGrafanaConfig = `{"template_files":{},"alertmanager_config":{"route":{"receiver":"grafana-default-email","group_by":["grafana_folder","alertname"]},"templates":null,"receivers":[{"name":"grafana-default-email","grafana_managed_receiver_configs":[{"uid":"","name":"some other name","type":"email","disableResolveMessage":false,"settings":{"addresses":"\u003cexample@email.com\u003e"},"secureSettings":null}]}]}}`
 const testGrafanaConfigWithSecret = `{"template_files":{},"alertmanager_config":{"route":{"receiver":"grafana-default-email","group_by":["grafana_folder","alertname"]},"templates":null,"receivers":[{"name":"grafana-default-email","grafana_managed_receiver_configs":[{"uid":"dde6ntuob69dtf","name":"WH","type":"webhook","disableResolveMessage":false,"settings":{"url":"http://localhost:8080","username":"test"},"secureSettings":{"password":"test"}}]}]}}`
 
+// Valid Alertmanager state base64 encoded.
+const testSilence1 = "lwEKhgEKATESFxIJYWxlcnRuYW1lGgp0ZXN0X2FsZXJ0EiMSDmdyYWZhbmFfZm9sZGVyGhF0ZXN0X2FsZXJ0X2ZvbGRlchoMCN2CkbAGEJbKrMsDIgwI7Z6RsAYQlsqsywMqCwiAkrjDmP7///8BQgxHcmFmYW5hIFRlc3RKDFRlc3QgU2lsZW5jZRIMCO2ekbAGEJbKrMsD"
+const testSilence2 = "lwEKhgEKATISFxIJYWxlcnRuYW1lGgp0ZXN0X2FsZXJ0EiMSDmdyYWZhbmFfZm9sZGVyGhF0ZXN0X2FsZXJ0X2ZvbGRlchoMCN2CkbAGEJbKrMsDIgwI7Z6RsAYQlsqsywMqCwiAkrjDmP7///8BQgxHcmFmYW5hIFRlc3RKDFRlc3QgU2lsZW5jZRIMCO2ekbAGEJbKrMsDlwEKhgEKATESFxIJYWxlcnRuYW1lGgp0ZXN0X2FsZXJ0EiMSDmdyYWZhbmFfZm9sZGVyGhF0ZXN0X2FsZXJ0X2ZvbGRlchoMCN2CkbAGEJbKrMsDIgwI7Z6RsAYQlsqsywMqCwiAkrjDmP7///8BQgxHcmFmYW5hIFRlc3RKDFRlc3QgU2lsZW5jZRIMCO2ekbAGEJbKrMsD"
+const testNflog1 = "OgoqCgZncm91cDESEgoJcmVjZWl2ZXIxEgV0ZXN0MyoMCIzm1bAGEPqx5uEBEgwInILWsAYQ+rHm4QE="
+const testNflog2 = "OgoqCgZncm91cDISEgoJcmVjZWl2ZXIyEgV0ZXN0MyoMCLSDkbAGEMvaofYCEgwIxJ+RsAYQy9qh9gI6CioKBmdyb3VwMRISCglyZWNlaXZlcjESBXRlc3QzKgwItIORsAYQy9qh9gISDAjEn5GwBhDL2qH2Ag=="
+
 func TestMain(m *testing.M) {
 	testsuite.Run(m)
 }
@@ -145,8 +150,8 @@ func TestApplyConfig(t *testing.T) {
 	ctx := context.Background()
 	store := ngfakes.NewFakeKVStore(t)
 	fstore := notifier.NewFileStore(1, store)
-	require.NoError(t, store.Set(ctx, cfg.OrgID, "alertmanager", notifier.SilencesFilename, "test"))
-	require.NoError(t, store.Set(ctx, cfg.OrgID, "alertmanager", notifier.NotificationLogFilename, "test"))
+	require.NoError(t, store.Set(ctx, cfg.OrgID, "alertmanager", notifier.SilencesFilename, testSilence1))
+	require.NoError(t, store.Set(ctx, cfg.OrgID, "alertmanager", notifier.NotificationLogFilename, testNflog1))
 
 	// An error response from the remote Alertmanager should result in the readiness check failing.
 	m := metrics.NewRemoteAlertmanagerMetrics(prometheus.NewRegistry())
@@ -293,14 +298,12 @@ func TestIntegrationRemoteAlertmanagerApplyConfigOnlyUploadsOnce(t *testing.T) {
 		OrgID:                     1,
 	}
 
-	silences := []byte("test-silences")
-	nflog := []byte("test-notifications")
 	store := ngfakes.NewFakeKVStore(t)
 	fstore := notifier.NewFileStore(cfg.OrgID, store)
 
 	ctx := context.Background()
-	require.NoError(t, store.Set(ctx, cfg.OrgID, "alertmanager", notifier.SilencesFilename, base64.StdEncoding.EncodeToString(silences)))
-	require.NoError(t, store.Set(ctx, cfg.OrgID, "alertmanager", notifier.NotificationLogFilename, base64.StdEncoding.EncodeToString(nflog)))
+	require.NoError(t, store.Set(ctx, cfg.OrgID, "alertmanager", notifier.SilencesFilename, testSilence1))
+	require.NoError(t, store.Set(ctx, cfg.OrgID, "alertmanager", notifier.NotificationLogFilename, testNflog1))
 
 	secretsService := secretsManager.SetupTestService(t, fakes.NewFakeSecretsStore())
 	m := metrics.NewRemoteAlertmanagerMetrics(prometheus.NewRegistry())
@@ -344,8 +347,8 @@ func TestIntegrationRemoteAlertmanagerApplyConfigOnlyUploadsOnce(t *testing.T) {
 
 	// Calling `ApplyConfig` again with a changed configuration and state yields no effect.
 	{
-		require.NoError(t, store.Set(ctx, cfg.OrgID, "alertmanager", "silences", base64.StdEncoding.EncodeToString([]byte("abc123"))))
-		require.NoError(t, store.Set(ctx, cfg.OrgID, "alertmanager", "notifications", base64.StdEncoding.EncodeToString([]byte("abc123"))))
+		require.NoError(t, store.Set(ctx, cfg.OrgID, "alertmanager", "silences", testSilence2))
+		require.NoError(t, store.Set(ctx, cfg.OrgID, "alertmanager", "notifications", testNflog2))
 		fakeConfig.ID = 30000000000000000
 		require.NoError(t, am.ApplyConfig(ctx, fakeConfig))
 
@@ -401,8 +404,8 @@ func TestIntegrationRemoteAlertmanagerSilences(t *testing.T) {
 	require.Equal(t, 0, len(silences))
 
 	// Creating a silence should succeed.
-	testSilence := genSilence("test")
-	id, err := am.CreateSilence(context.Background(), &testSilence)
+	testSilence := notifier.GenSilence("test")
+	id, err := am.CreateSilence(context.Background(), testSilence)
 	require.NoError(t, err)
 	require.NotEmpty(t, id)
 	testSilence.ID = id
@@ -417,8 +420,8 @@ func TestIntegrationRemoteAlertmanagerSilences(t *testing.T) {
 	require.Error(t, err)
 
 	// After creating another silence, the total amount should be 2.
-	testSilence2 := genSilence("test")
-	id, err = am.CreateSilence(context.Background(), &testSilence2)
+	testSilence2 := notifier.GenSilence("test")
+	id, err = am.CreateSilence(context.Background(), testSilence2)
 	require.NoError(t, err)
 	require.NotEmpty(t, id)
 	testSilence2.ID = id
@@ -552,27 +555,6 @@ func TestIntegrationRemoteAlertmanagerReceivers(t *testing.T) {
 	require.Equal(t, "empty-receiver", *rcvs[0].Name)
 }
 
-func genSilence(createdBy string) apimodels.PostableSilence {
-	starts := strfmt.DateTime(time.Now().Add(time.Duration(rand.Int63n(9)+1) * time.Second))
-	ends := strfmt.DateTime(time.Now().Add(time.Duration(rand.Int63n(9)+10) * time.Second))
-	comment := "test comment"
-	isEqual := true
-	name := "test"
-	value := "test"
-	isRegex := false
-	matchers := amv2.Matchers{&amv2.Matcher{IsEqual: &isEqual, Name: &name, Value: &value, IsRegex: &isRegex}}
-
-	return apimodels.PostableSilence{
-		Silence: amv2.Silence{
-			Comment:   &comment,
-			CreatedBy: &createdBy,
-			Matchers:  matchers,
-			StartsAt:  &starts,
-			EndsAt:    &ends,
-		},
-	}
-}
-
 func genAlert(active bool, labels map[string]string) amv2.PostableAlert {
 	endsAt := time.Now()
 	if active {

pkg/services/ngalert/remote/mock/remoteAlertmanager.go

@@ -804,6 +804,60 @@ func (_c *RemoteAlertmanagerMock_SaveAndApplyDefaultConfig_Call) RunAndReturn(ru
 	return _c
 }
 
+// SilenceState provides a mock function with given fields: _a0
+func (_m *RemoteAlertmanagerMock) SilenceState(_a0 context.Context) (notify.SilenceState, error) {
+	ret := _m.Called(_a0)
+
+	var r0 notify.SilenceState
+	var r1 error
+	if rf, ok := ret.Get(0).(func(context.Context) (notify.SilenceState, error)); ok {
+		return rf(_a0)
+	}
+	if rf, ok := ret.Get(0).(func(context.Context) notify.SilenceState); ok {
+		r0 = rf(_a0)
+	} else {
+		if ret.Get(0) != nil {
+			r0 = ret.Get(0).(notify.SilenceState)
+		}
+	}
+
+	if rf, ok := ret.Get(1).(func(context.Context) error); ok {
+		r1 = rf(_a0)
+	} else {
+		r1 = ret.Error(1)
+	}
+
+	return r0, r1
+}
+
+// RemoteAlertmanagerMock_SilenceState_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'SilenceState'
+type RemoteAlertmanagerMock_SilenceState_Call struct {
+	*mock.Call
+}
+
+// SilenceState is a helper method to define mock.On call
+//   - _a0 context.Context
+func (_e *RemoteAlertmanagerMock_Expecter) SilenceState(_a0 interface{}) *RemoteAlertmanagerMock_SilenceState_Call {
+	return &RemoteAlertmanagerMock_SilenceState_Call{Call: _e.mock.On("SilenceState", _a0)}
+}
+
+func (_c *RemoteAlertmanagerMock_SilenceState_Call) Run(run func(_a0 context.Context)) *RemoteAlertmanagerMock_SilenceState_Call {
+	_c.Call.Run(func(args mock.Arguments) {
+		run(args[0].(context.Context))
+	})
+	return _c
+}
+
+func (_c *RemoteAlertmanagerMock_SilenceState_Call) Return(_a0 notify.SilenceState, _a1 error) *RemoteAlertmanagerMock_SilenceState_Call {
+	_c.Call.Return(_a0, _a1)
+	return _c
+}
+
+func (_c *RemoteAlertmanagerMock_SilenceState_Call) RunAndReturn(run func(context.Context) (notify.SilenceState, error)) *RemoteAlertmanagerMock_SilenceState_Call {
+	_c.Call.Return(run)
+	return _c
+}
+
 // StopAndWait provides a mock function with given fields:
 func (_m *RemoteAlertmanagerMock) StopAndWait() {
 	_m.Called()

pkg/services/ngalert/remote/remote_primary_forked_alertmanager.go

@@ -4,6 +4,8 @@ import (
 	"context"
 	"fmt"
 
+	alertingNotify "github.com/grafana/alerting/notify"
+
 	"github.com/grafana/grafana/pkg/infra/log"
 	apimodels "github.com/grafana/grafana/pkg/services/ngalert/api/tooling/definitions"
 	"github.com/grafana/grafana/pkg/services/ngalert/models"
@@ -91,6 +93,10 @@ func (fam *RemotePrimaryForkedAlertmanager) TestTemplate(ctx context.Context, c
 	return fam.remote.TestTemplate(ctx, c)
 }
 
+func (fam *RemotePrimaryForkedAlertmanager) SilenceState(ctx context.Context) (alertingNotify.SilenceState, error) {
+	return fam.remote.SilenceState(ctx)
+}
+
 func (fam *RemotePrimaryForkedAlertmanager) StopAndWait() {
 	fam.internal.StopAndWait()
 	fam.remote.StopAndWait()

pkg/services/ngalert/remote/remote_secondary_forked_alertmanager.go

@@ -6,6 +6,8 @@ import (
 	"sync"
 	"time"
 
+	alertingNotify "github.com/grafana/alerting/notify"
+
 	"github.com/grafana/grafana/pkg/infra/log"
 	apimodels "github.com/grafana/grafana/pkg/services/ngalert/api/tooling/definitions"
 	"github.com/grafana/grafana/pkg/services/ngalert/models"
@@ -165,6 +167,10 @@ func (fam *RemoteSecondaryForkedAlertmanager) TestTemplate(ctx context.Context,
 	return fam.internal.TestTemplate(ctx, c)
 }
 
+func (fam *RemoteSecondaryForkedAlertmanager) SilenceState(ctx context.Context) (alertingNotify.SilenceState, error) {
+	return fam.internal.SilenceState(ctx)
+}
+
 func (fam *RemoteSecondaryForkedAlertmanager) StopAndWait() {
 	// Stop the internal Alertmanager.
 	fam.internal.StopAndWait()