fix: instance remove (#4602)

internal/admin/repository/eventsourcing/handler/styling.go

@@ -150,6 +150,12 @@ func (m *Styling) processLabelPolicy(event *models.Event) (err error) {
 			return err
 		}
 		err = m.generateStylingFile(policy)
+	case instance.InstanceRemovedEventType:
+		err = m.deleteInstanceFilesFromStorage(event.InstanceID)
+		if err != nil {
+			return err
+		}
+		return m.view.DeleteInstanceStyling(event)
 	default:
 		return m.view.ProcessedStylingSequence(event)
 	}
@@ -262,6 +268,10 @@ func (m *Styling) uploadFilesToStorage(instanceID, aggregateID, contentType stri
 	return err
 }
 
+func (m *Styling) deleteInstanceFilesFromStorage(instanceID string) error {
+	return m.static.RemoveInstanceObjects(context.Background(), instanceID)
+}
+
 func (m *Styling) generateColorPaletteRGBA255(hex string) map[string]string {
 	palette := make(map[string]string)
 	defaultColor := gamut.Hex(hex)

internal/admin/repository/eventsourcing/view/styling.go

@@ -23,6 +23,14 @@ func (v *View) PutStyling(policy *model.LabelPolicyView, event *models.Event) er
 	return v.ProcessedStylingSequence(event)
 }
 
+func (v *View) DeleteInstanceStyling(event *models.Event) error {
+	err := view.DeleteInstanceStyling(v.Db, stylingTyble, event.InstanceID)
+	if err != nil {
+		return err
+	}
+	return v.ProcessedStylingSequence(event)
+}
+
 func (v *View) GetLatestStylingSequence(instanceID string) (*global_view.CurrentSequence, error) {
 	return v.latestSequence(stylingTyble, instanceID)
 }

internal/api/grpc/system/instance.go

@@ -63,6 +63,7 @@ func (s *Server) UpdateInstance(ctx context.Context, req *system_pb.UpdateInstan
 }
 
 func (s *Server) RemoveInstance(ctx context.Context, req *system_pb.RemoveInstanceRequest) (*system_pb.RemoveInstanceResponse, error) {
+	ctx = authz.WithInstanceID(ctx, req.InstanceId)
 	details, err := s.command.RemoveInstance(ctx, req.InstanceId)
 	if err != nil {
 		return nil, err

internal/auth/repository/eventsourcing/handler/idp_config.go

@@ -117,6 +117,8 @@ func (i *IDPConfig) processIdpConfig(providerType iam_model.IDPProviderType, eve
 			return err
 		}
 		return i.view.DeleteIDPConfig(idp.IDPConfigID, event)
+	case instance.InstanceRemovedEventType:
+		return i.view.DeleteInstanceIDPs(event)
 	default:
 		return i.view.ProcessedIDPConfigSequence(event)
 	}

internal/auth/repository/eventsourcing/handler/idp_providers.go

@@ -138,6 +138,8 @@ func (i *IDPProvider) processIdpProvider(event *models.Event) (err error) {
 		return i.view.PutIDPProviders(event, providers...)
 	case org.LoginPolicyRemovedEventType:
 		return i.view.DeleteIDPProvidersByAggregateID(event.AggregateID, event.InstanceID, event)
+	case instance.InstanceRemovedEventType:
+		return i.view.DeleteInstanceIDPs(event)
 	default:
 		return i.view.ProcessedIDPProviderSequence(event)
 	}

internal/auth/repository/eventsourcing/handler/org_project_mapping.go

@@ -9,6 +9,7 @@ import (
 	"github.com/zitadel/zitadel/internal/eventstore/v1/query"
 	"github.com/zitadel/zitadel/internal/eventstore/v1/spooler"
 	view_model "github.com/zitadel/zitadel/internal/project/repository/view/model"
+	"github.com/zitadel/zitadel/internal/repository/instance"
 	"github.com/zitadel/zitadel/internal/repository/project"
 )
 
@@ -51,7 +52,7 @@ func (p *OrgProjectMapping) Subscription() *v1.Subscription {
 }
 
 func (_ *OrgProjectMapping) AggregateTypes() []es_models.AggregateType {
-	return []es_models.AggregateType{project.AggregateType}
+	return []es_models.AggregateType{project.AggregateType, instance.AggregateType}
 }
 
 func (p *OrgProjectMapping) CurrentSequence(instanceID string) (uint64, error) {
@@ -96,6 +97,8 @@ func (p *OrgProjectMapping) Reduce(event *es_models.Event) (err error) {
 		if err == nil {
 			return p.view.ProcessedOrgProjectMappingSequence(event)
 		}
+	case instance.InstanceRemovedEventType:
+		return p.view.DeleteInstanceOrgProjectMappings(event)
 	default:
 		return p.view.ProcessedOrgProjectMappingSequence(event)
 	}

internal/auth/repository/eventsourcing/handler/refresh_token.go

@@ -11,6 +11,7 @@ import (
 	es_models "github.com/zitadel/zitadel/internal/eventstore/v1/models"
 	"github.com/zitadel/zitadel/internal/eventstore/v1/query"
 	"github.com/zitadel/zitadel/internal/eventstore/v1/spooler"
+	"github.com/zitadel/zitadel/internal/repository/instance"
 	"github.com/zitadel/zitadel/internal/repository/project"
 	"github.com/zitadel/zitadel/internal/repository/user"
 	view_model "github.com/zitadel/zitadel/internal/user/repository/view/model"
@@ -55,7 +56,7 @@ func (t *RefreshToken) Subscription() *v1.Subscription {
 }
 
 func (t *RefreshToken) AggregateTypes() []es_models.AggregateType {
-	return []es_models.AggregateType{user.AggregateType, project.AggregateType}
+	return []es_models.AggregateType{user.AggregateType, project.AggregateType, instance.AggregateType}
 }
 
 func (t *RefreshToken) CurrentSequence(instanceID string) (uint64, error) {
@@ -109,6 +110,8 @@ func (t *RefreshToken) Reduce(event *es_models.Event) (err error) {
 		user.UserDeactivatedType,
 		user.UserRemovedType:
 		return t.view.DeleteUserRefreshTokens(event.AggregateID, event.InstanceID, event)
+	case instance.InstanceRemovedEventType:
+		return t.view.DeleteInstanceRefreshTokens(event)
 	default:
 		return t.view.ProcessedRefreshTokenSequence(event)
 	}

internal/auth/repository/eventsourcing/handler/token.go

@@ -16,6 +16,7 @@ import (
 	proj_model "github.com/zitadel/zitadel/internal/project/model"
 	project_es_model "github.com/zitadel/zitadel/internal/project/repository/eventsourcing/model"
 	proj_view "github.com/zitadel/zitadel/internal/project/repository/view"
+	"github.com/zitadel/zitadel/internal/repository/instance"
 	"github.com/zitadel/zitadel/internal/repository/project"
 	"github.com/zitadel/zitadel/internal/repository/user"
 	user_repo "github.com/zitadel/zitadel/internal/repository/user"
@@ -61,7 +62,7 @@ func (t *Token) Subscription() *v1.Subscription {
 }
 
 func (_ *Token) AggregateTypes() []es_models.AggregateType {
-	return []es_models.AggregateType{user.AggregateType, project.AggregateType}
+	return []es_models.AggregateType{user.AggregateType, project.AggregateType, instance.AggregateType}
 }
 
 func (p *Token) CurrentSequence(instanceID string) (uint64, error) {
@@ -144,6 +145,8 @@ func (t *Token) Reduce(event *es_models.Event) (err error) {
 			applicationsIDs = append(applicationsIDs, app.AppID)
 		}
 		return t.view.DeleteApplicationTokens(event, applicationsIDs...)
+	case instance.InstanceRemovedEventType:
+		return t.view.DeleteInstanceTokens(event)
 	default:
 		return t.view.ProcessedTokenSequence(event)
 	}

internal/auth/repository/eventsourcing/handler/user.go

@@ -16,6 +16,7 @@ import (
 	org_es_model "github.com/zitadel/zitadel/internal/org/repository/eventsourcing/model"
 	"github.com/zitadel/zitadel/internal/org/repository/view"
 	query2 "github.com/zitadel/zitadel/internal/query"
+	"github.com/zitadel/zitadel/internal/repository/instance"
 	"github.com/zitadel/zitadel/internal/repository/org"
 	user_repo "github.com/zitadel/zitadel/internal/repository/user"
 	usr_view "github.com/zitadel/zitadel/internal/user/repository/view"
@@ -63,7 +64,7 @@ func (u *User) Subscription() *v1.Subscription {
 	return u.subscription
 }
 func (_ *User) AggregateTypes() []es_models.AggregateType {
-	return []es_models.AggregateType{user_repo.AggregateType, org.AggregateType}
+	return []es_models.AggregateType{user_repo.AggregateType, org.AggregateType, instance.AggregateType}
 }
 
 func (u *User) CurrentSequence(instanceID string) (uint64, error) {
@@ -88,6 +89,8 @@ func (u *User) Reduce(event *es_models.Event) (err error) {
 		return u.ProcessUser(event)
 	case org.AggregateType:
 		return u.ProcessOrg(event)
+	case instance.AggregateType:
+		return u.ProcessInstance(event)
 	default:
 		return nil
 	}
@@ -229,6 +232,15 @@ func (u *User) ProcessOrg(event *es_models.Event) (err error) {
 	}
 }
 
+func (u *User) ProcessInstance(event *es_models.Event) (err error) {
+	switch eventstore.EventType(event.Type) {
+	case instance.InstanceRemovedEventType:
+		return u.view.DeleteInstanceUsers(event)
+	default:
+		return u.view.ProcessedUserSequence(event)
+	}
+}
+
 func (u *User) fillLoginNamesOnOrgUsers(event *es_models.Event) error {
 	userLoginMustBeDomain, _, domains, err := u.loginNameInformation(context.Background(), event.ResourceOwner, event.InstanceID)
 	if err != nil {

internal/auth/repository/eventsourcing/handler/user_external_idps.go

@@ -150,6 +150,8 @@ func (i *ExternalIDP) processIdpConfig(event *es_models.Event) (err error) {
 			i.fillConfigData(provider, config)
 		}
 		return i.view.PutExternalIDPs(event, exterinalIDPs...)
+	case instance.InstanceRemovedEventType:
+		return i.view.DeleteInstanceExternalIDPs(event)
 	default:
 		return i.view.ProcessedExternalIDPSequence(event)
 	}

internal/auth/repository/eventsourcing/handler/user_session.go

@@ -17,6 +17,7 @@ import (
 	org_es_model "github.com/zitadel/zitadel/internal/org/repository/eventsourcing/model"
 	"github.com/zitadel/zitadel/internal/org/repository/view"
 	query2 "github.com/zitadel/zitadel/internal/query"
+	"github.com/zitadel/zitadel/internal/repository/instance"
 	"github.com/zitadel/zitadel/internal/repository/org"
 	"github.com/zitadel/zitadel/internal/repository/user"
 	view_model "github.com/zitadel/zitadel/internal/user/repository/view/model"
@@ -61,7 +62,7 @@ func (u *UserSession) Subscription() *v1.Subscription {
 }
 
 func (_ *UserSession) AggregateTypes() []models.AggregateType {
-	return []models.AggregateType{user.AggregateType, org.AggregateType}
+	return []models.AggregateType{user.AggregateType, org.AggregateType, instance.AggregateType}
 }
 
 func (u *UserSession) CurrentSequence(instanceID string) (uint64, error) {
@@ -153,6 +154,8 @@ func (u *UserSession) Reduce(event *models.Event) (err error) {
 		return u.fillLoginNamesOnOrgUsers(event)
 	case user.UserRemovedType:
 		return u.view.DeleteUserSessions(event.AggregateID, event.InstanceID, event)
+	case instance.InstanceRemovedEventType:
+		return u.view.DeleteInstanceUserSessions(event)
 	default:
 		return u.view.ProcessedUserSessionSequence(event)
 	}

internal/auth/repository/eventsourcing/view/external_idps.go

@@ -56,6 +56,14 @@ func (v *View) DeleteExternalIDPsByUserID(userID, instanceID string, event *mode
 	return v.ProcessedExternalIDPSequence(event)
 }
 
+func (v *View) DeleteInstanceExternalIDPs(event *models.Event) error {
+	err := view.DeleteInstanceExternalIDPs(v.Db, externalIDPTable, event.InstanceID)
+	if err != nil && !errors.IsNotFound(err) {
+		return err
+	}
+	return v.ProcessedExternalIDPSequence(event)
+}
+
 func (v *View) GetLatestExternalIDPSequence(instanceID string) (*global_view.CurrentSequence, error) {
 	return v.latestSequence(externalIDPTable, instanceID)
 }

internal/auth/repository/eventsourcing/view/idp_configs.go

@@ -41,6 +41,14 @@ func (v *View) DeleteIDPConfig(idpID string, event *models.Event) error {
 	return v.ProcessedIDPConfigSequence(event)
 }
 
+func (v *View) DeleteInstanceIDPs(event *models.Event) error {
+	err := view.DeleteInstanceIDPs(v.Db, idpConfigTable, event.InstanceID)
+	if err != nil && !errors.IsNotFound(err) {
+		return err
+	}
+	return v.ProcessedIDPConfigSequence(event)
+}
+
 func (v *View) GetLatestIDPConfigSequence(instanceID string) (*global_view.CurrentSequence, error) {
 	return v.latestSequence(idpConfigTable, instanceID)
 }

internal/auth/repository/eventsourcing/view/idp_providers.go

@@ -61,6 +61,14 @@ func (v *View) DeleteIDPProvidersByAggregateID(aggregateID, instanceID string, e
 	return v.ProcessedIDPProviderSequence(event)
 }
 
+func (v *View) DeleteInstanceIDPProviders(event *models.Event) error {
+	err := view.DeleteInstanceIDPProviders(v.Db, idpProviderTable, event.InstanceID)
+	if err != nil && !errors.IsNotFound(err) {
+		return err
+	}
+	return v.ProcessedIDPProviderSequence(event)
+}
+
 func (v *View) GetLatestIDPProviderSequence(instanceID string) (*global_view.CurrentSequence, error) {
 	return v.latestSequence(idpProviderTable, instanceID)
 }

internal/auth/repository/eventsourcing/view/org_project_mapping.go

@@ -32,6 +32,14 @@ func (v *View) DeleteOrgProjectMapping(orgID, projectID, instanceID string, even
 	return v.ProcessedOrgProjectMappingSequence(event)
 }
 
+func (v *View) DeleteInstanceOrgProjectMappings(event *models.Event) error {
+	err := view.DeleteInstanceOrgProjectMappings(v.Db, orgPrgojectMappingTable, event.InstanceID)
+	if err != nil && !errors.IsNotFound(err) {
+		return err
+	}
+	return v.ProcessedOrgProjectMappingSequence(event)
+}
+
 func (v *View) DeleteOrgProjectMappingsByProjectID(projectID, instanceID string) error {
 	return view.DeleteOrgProjectMappingsByProjectID(v.Db, orgPrgojectMappingTable, projectID, instanceID)
 }

internal/auth/repository/eventsourcing/view/refresh_token.go

@@ -65,6 +65,14 @@ func (v *View) DeleteApplicationRefreshTokens(event *models.Event, ids ...string
 	return v.ProcessedRefreshTokenSequence(event)
 }
 
+func (v *View) DeleteInstanceRefreshTokens(event *models.Event) error {
+	err := usr_view.DeleteInstanceRefreshTokens(v.Db, refreshTokenTable, event.InstanceID)
+	if err != nil && !errors.IsNotFound(err) {
+		return err
+	}
+	return v.ProcessedRefreshTokenSequence(event)
+}
+
 func (v *View) GetLatestRefreshTokenSequence(instanceID string) (*repository.CurrentSequence, error) {
 	return v.latestSequence(refreshTokenTable, instanceID)
 }

internal/auth/repository/eventsourcing/view/token.go

@@ -76,6 +76,14 @@ func (v *View) DeleteTokensFromRefreshToken(refreshTokenID, instanceID string, e
 	return v.ProcessedTokenSequence(event)
 }
 
+func (v *View) DeleteInstanceTokens(event *models.Event) error {
+	err := usr_view.DeleteInstanceTokens(v.Db, tokenTable, event.InstanceID)
+	if err != nil && !errors.IsNotFound(err) {
+		return err
+	}
+	return v.ProcessedTokenSequence(event)
+}
+
 func (v *View) GetLatestTokenSequence(instanceID string) (*repository.CurrentSequence, error) {
 	return v.latestSequence(tokenTable, instanceID)
 }

internal/auth/repository/eventsourcing/view/user.go

@@ -181,6 +181,14 @@ func (v *View) DeleteUser(userID, instanceID string, event *models.Event) error
 	return v.ProcessedUserSequence(event)
 }
 
+func (v *View) DeleteInstanceUsers(event *models.Event) error {
+	err := view.DeleteInstanceUsers(v.Db, userTable, event.InstanceID)
+	if err != nil && !errors.IsNotFound(err) {
+		return err
+	}
+	return v.ProcessedUserSequence(event)
+}
+
 func (v *View) GetLatestUserSequence(instanceID string) (*repository.CurrentSequence, error) {
 	return v.latestSequence(userTable, instanceID)
 }

internal/auth/repository/eventsourcing/view/user_session.go

@@ -56,6 +56,14 @@ func (v *View) DeleteUserSessions(userID, instanceID string, event *models.Event
 	return v.ProcessedUserSessionSequence(event)
 }
 
+func (v *View) DeleteInstanceUserSessions(event *models.Event) error {
+	err := view.DeleteInstanceUserSessions(v.Db, userSessionTable, event.InstanceID)
+	if err != nil && !errors.IsNotFound(err) {
+		return err
+	}
+	return v.ProcessedUserSessionSequence(event)
+}
+
 func (v *View) GetLatestUserSessionSequence(instanceID string) (*repository.CurrentSequence, error) {
 	return v.latestSequence(userSessionTable, instanceID)
 }

internal/command/instance.go

@@ -550,7 +550,7 @@ func (c *Commands) prepareUpdateInstance(a *instance.Aggregate, name string) pre
 			if err != nil {
 				return nil, err
 			}
-			if writeModel.State == domain.InstanceStateUnspecified {
+			if !writeModel.State.Exists() {
 				return nil, errors.ThrowNotFound(nil, "INST-nuso2m", "Errors.Instance.NotFound")
 			}
 			if writeModel.Name == name {
@@ -631,17 +631,16 @@ func (c *Commands) prepareRemoveInstance(a *instance.Aggregate) preparation.Vali
 		return func(ctx context.Context, filter preparation.FilterToQueryReducer) ([]eventstore.Command, error) {
 			writeModel, err := c.getInstanceWriteModelByID(ctx, a.ID)
 			if err != nil {
-				return nil, errors.ThrowPreconditionFailed(err, "COMMA-pax9m3", "Errors.Instance.NotFound")
+				return nil, errors.ThrowNotFound(err, "COMMA-pax9m3", "Errors.Instance.NotFound")
 			}
-			events := []eventstore.Command{instance.NewInstanceRemovedEvent(ctx, &a.Aggregate, writeModel.Name)}
+			if !writeModel.State.Exists() {
-
+				return nil, errors.ThrowNotFound(err, "COMMA-AE3GS", "Errors.Instance.NotFound")
-			domainsWriteModel, err := c.getInstanceDomainsWriteModel(ctx, a.ID)
-			if err == nil {
-				for _, domainName := range domainsWriteModel.Domains {
-					events = append(events, instance.NewDomainRemovedEvent(ctx, &a.Aggregate, domainName))
 			}
-			}
+			return []eventstore.Command{instance.NewInstanceRemovedEvent(ctx,
-			return events, nil
+					&a.Aggregate,
+					writeModel.Name,
+					writeModel.Domains)},
+				nil
 		}, nil
 	}
 }

internal/command/instance_model.go

@@ -14,6 +14,7 @@ type InstanceWriteModel struct {
 	Name            string
 	State           domain.InstanceState
 	GeneratedDomain string
+	Domains         []string
 
 	DefaultOrgID    string
 	ProjectID       string
@@ -41,10 +42,16 @@ func (wm *InstanceWriteModel) Reduce() error {
 		case *instance.InstanceRemovedEvent:
 			wm.State = domain.InstanceStateRemoved
 		case *instance.DomainAddedEvent:
-			if !e.Generated {
+			if e.Generated {
-				continue
-			}
 				wm.GeneratedDomain = e.Domain
+			}
+			wm.Domains = append(wm.Domains, e.Domain)
+		case *instance.DomainRemovedEvent:
+			for _, customDomain := range wm.Domains {
+				if customDomain == e.Domain {
+					wm.Domains = removeDomainFromDomains(wm.Domains, e.Domain)
+				}
+			}
 		case *instance.ProjectSetEvent:
 			wm.ProjectID = e.ProjectID
 		case *instance.DefaultOrgSetEvent:

internal/command/instance_test.go

@@ -14,14 +14,13 @@ import (
 	"github.com/zitadel/zitadel/internal/repository/instance"
 )
 
-func TestCommandSide_ChangeInstance(t *testing.T) {
+func TestCommandSide_UpdateInstance(t *testing.T) {
 	type fields struct {
 		eventstore *eventstore.Eventstore
 	}
 	type args struct {
 		ctx  context.Context
 		name string
-		instanceID string
 	}
 	type res struct {
 		want *domain.ObjectDetails
@@ -42,7 +41,6 @@ func TestCommandSide_ChangeInstance(t *testing.T) {
 			},
 			args: args{
 				ctx:  authz.WithInstanceID(context.Background(), "INSTANCE"),
-				instanceID: "INSTANCE",
 				name: "",
 			},
 			res: res{
@@ -59,16 +57,14 @@ func TestCommandSide_ChangeInstance(t *testing.T) {
 			},
 			args: args{
 				ctx:  authz.WithInstanceID(context.Background(), "INSTANCE"),
-				instanceID: "INSTANCE",
 				name: "INSTANCE_CHANGED",
 			},
 			res: res{
 				err: caos_errs.IsNotFound,
 			},
 		},
-		/* instance removed is not yet implemented
 		{
-			name: "generator removed, not found error",
+			name: "instance removed, not found error",
 			fields: fields{
 				eventstore: eventstoreExpect(
 					t,
@@ -84,6 +80,7 @@ func TestCommandSide_ChangeInstance(t *testing.T) {
 							instance.NewInstanceRemovedEvent(context.Background(),
 								&instance.NewAggregate("INSTANCE").Aggregate,
 								"INSTANCE",
+								nil,
 							),
 						),
 					),
@@ -96,7 +93,7 @@ func TestCommandSide_ChangeInstance(t *testing.T) {
 			res: res{
 				err: caos_errs.IsNotFound,
 			},
-		},*/
+		},
 		{
 			name: "no changes, precondition error",
 			fields: fields{
@@ -115,7 +112,6 @@ func TestCommandSide_ChangeInstance(t *testing.T) {
 			},
 			args: args{
 				ctx:  authz.WithInstanceID(context.Background(), "INSTANCE"),
-				instanceID: "INSTANCE",
 				name: "INSTANCE",
 			},
 			res: res{
@@ -178,3 +174,148 @@ func TestCommandSide_ChangeInstance(t *testing.T) {
 		})
 	}
 }
+
+func TestCommandSide_RemoveInstance(t *testing.T) {
+	type fields struct {
+		eventstore *eventstore.Eventstore
+	}
+	type args struct {
+		ctx        context.Context
+		instanceID string
+	}
+	type res struct {
+		want *domain.ObjectDetails
+		err  func(error) bool
+	}
+	tests := []struct {
+		name   string
+		fields fields
+		args   args
+		res    res
+	}{
+		{
+			name: "instance not existing, not found error",
+			fields: fields{
+				eventstore: eventstoreExpect(
+					t,
+					expectFilter(),
+				),
+			},
+			args: args{
+				ctx:        authz.WithInstanceID(context.Background(), "INSTANCE"),
+				instanceID: "INSTANCE",
+			},
+			res: res{
+				err: caos_errs.IsNotFound,
+			},
+		},
+		{
+			name: "instance removed, not found error",
+			fields: fields{
+				eventstore: eventstoreExpect(
+					t,
+					expectFilter(
+						eventFromEventPusher(
+							instance.NewInstanceAddedEvent(
+								context.Background(),
+								&instance.NewAggregate("INSTANCE").Aggregate,
+								"INSTANCE",
+							),
+						),
+						eventFromEventPusher(
+							instance.NewInstanceRemovedEvent(context.Background(),
+								&instance.NewAggregate("INSTANCE").Aggregate,
+								"INSTANCE",
+								nil,
+							),
+						),
+					),
+				),
+			},
+			args: args{
+				ctx:        authz.WithInstanceID(context.Background(), "INSTANCE"),
+				instanceID: "INSTANCE",
+			},
+			res: res{
+				err: caos_errs.IsNotFound,
+			},
+		},
+		{
+			name: "instance remove, ok",
+			fields: fields{
+				eventstore: eventstoreExpect(
+					t,
+					expectFilter(
+						eventFromEventPusherWithInstanceID(
+							"INSTANCE",
+							instance.NewInstanceAddedEvent(context.Background(),
+								&instance.NewAggregate("INSTANCE").Aggregate,
+								"INSTANCE",
+							),
+						),
+						eventFromEventPusherWithInstanceID(
+							"INSTANCE",
+							instance.NewDomainAddedEvent(context.Background(),
+								&instance.NewAggregate("INSTANCE").Aggregate,
+								"instance.domain",
+								true,
+							),
+						),
+						eventFromEventPusherWithInstanceID(
+							"INSTANCE",
+							instance.NewDomainAddedEvent(context.Background(),
+								&instance.NewAggregate("INSTANCE").Aggregate,
+								"custom.domain",
+								false,
+							),
+						),
+					),
+					expectPush(
+						[]*repository.Event{
+							eventFromEventPusherWithInstanceID(
+								"INSTANCE",
+								instance.NewInstanceRemovedEvent(context.Background(),
+									&instance.NewAggregate("INSTANCE").Aggregate,
+									"INSTANCE",
+									[]string{
+										"instance.domain",
+										"custom.domain",
+									},
+								),
+							),
+						},
+						uniqueConstraintsFromEventConstraint(instance.NewRemoveInstanceDomainUniqueConstraint("instance.domain")),
+						uniqueConstraintsFromEventConstraint(instance.NewRemoveInstanceDomainUniqueConstraint("custom.domain")),
+						uniqueConstraintsFromEventConstraintWithInstanceID("INSTANCE", eventstore.NewRemoveInstanceUniqueConstraints()),
+					),
+				),
+			},
+			args: args{
+				ctx:        authz.WithInstanceID(context.Background(), "INSTANCE"),
+				instanceID: "INSTANCE",
+			},
+			res: res{
+				want: &domain.ObjectDetails{
+					ResourceOwner: "INSTANCE",
+				},
+			},
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			r := &Commands{
+				eventstore: tt.fields.eventstore,
+			}
+			got, err := r.RemoveInstance(tt.args.ctx, tt.args.instanceID)
+			if tt.res.err == nil {
+				assert.NoError(t, err)
+			}
+			if tt.res.err != nil && !tt.res.err(err) {
+				t.Errorf("got wrong err: %v ", err)
+			}
+			if tt.res.err == nil {
+				assert.Equal(t, tt.res.want, got)
+			}
+		})
+	}
+}

internal/domain/instance.go

@@ -14,6 +14,10 @@ const (
 	instanceStateCount
 )
 
-func (f InstanceState) Valid() bool {
+func (s InstanceState) Valid() bool {
-	return f >= 0 && f < instanceStateCount
+	return s >= 0 && s < instanceStateCount
+}
+
+func (s InstanceState) Exists() bool {
+	return s != InstanceStateUnspecified && s != InstanceStateRemoved
 }

internal/eventstore/eventstore.go

@@ -12,7 +12,7 @@ import (
 	"github.com/zitadel/zitadel/internal/eventstore/repository"
 )
 
-//Eventstore abstracts all functions needed to store valid events
+// Eventstore abstracts all functions needed to store valid events
 // and filters the stored events
 type Eventstore struct {
 	repo              repository.Repository
@@ -32,13 +32,13 @@ func NewEventstore(repo repository.Repository) *Eventstore {
 	}
 }
 
-//Health checks if the eventstore can properly work
+// Health checks if the eventstore can properly work
 // It checks if the repository can serve load
 func (es *Eventstore) Health(ctx context.Context) error {
 	return es.repo.Health(ctx)
 }
 
-//Push pushes the events in a single transaction
+// Push pushes the events in a single transaction
 // an event needs at least an aggregate
 func (es *Eventstore) Push(ctx context.Context, cmds ...Command) ([]Event, error) {
 	events, constraints, err := commandsToRepository(authz.GetInstance(ctx).InstanceID(), cmds)
@@ -119,7 +119,7 @@ func uniqueConstraintsToRepository(instanceID string, constraints []*EventUnique
 	return uniqueConstraints
 }
 
-//Filter filters the stored events based on the searchQuery
+// Filter filters the stored events based on the searchQuery
 // and maps the events to the defined event structs
 func (es *Eventstore) Filter(ctx context.Context, queryFactory *SearchQueryBuilder) ([]Event, error) {
 	query, err := queryFactory.build(authz.GetInstance(ctx).InstanceID())
@@ -165,7 +165,7 @@ type reducer interface {
 	AppendEvents(...Event)
 }
 
-//FilterToReducer filters the events based on the search query, appends all events to the reducer and calls it's reduce function
+// FilterToReducer filters the events based on the search query, appends all events to the reducer and calls it's reduce function
 func (es *Eventstore) FilterToReducer(ctx context.Context, searchQuery *SearchQueryBuilder, r reducer) error {
 	events, err := es.Filter(ctx, searchQuery)
 	if err != nil {
@@ -177,7 +177,7 @@ func (es *Eventstore) FilterToReducer(ctx context.Context, searchQuery *SearchQu
 	return r.Reduce()
 }
 
-//LatestSequence filters the latest sequence for the given search query
+// LatestSequence filters the latest sequence for the given search query
 func (es *Eventstore) LatestSequence(ctx context.Context, queryFactory *SearchQueryBuilder) (uint64, error) {
 	query, err := queryFactory.build(authz.GetInstance(ctx).InstanceID())
 	if err != nil {
@@ -186,7 +186,7 @@ func (es *Eventstore) LatestSequence(ctx context.Context, queryFactory *SearchQu
 	return es.repo.LatestSequence(ctx, query)
 }
 
-//InstanceIDs returns the instance ids found by the search query
+// InstanceIDs returns the instance ids found by the search query
 func (es *Eventstore) InstanceIDs(ctx context.Context, queryFactory *SearchQueryBuilder) ([]string, error) {
 	query, err := queryFactory.build(authz.GetInstance(ctx).InstanceID())
 	if err != nil {
@@ -201,7 +201,7 @@ type QueryReducer interface {
 	Query() *SearchQueryBuilder
 }
 
-//FilterToQueryReducer filters the events based on the search query of the query function,
+// FilterToQueryReducer filters the events based on the search query of the query function,
 // appends all events to the reducer and calls it's reduce function
 func (es *Eventstore) FilterToQueryReducer(ctx context.Context, r QueryReducer) error {
 	events, err := es.Filter(ctx, r.Query())
@@ -213,7 +213,7 @@ func (es *Eventstore) FilterToQueryReducer(ctx context.Context, r QueryReducer)
 	return r.Reduce()
 }
 
-//RegisterFilterEventMapper registers a function for mapping an eventstore event to an event
+// RegisterFilterEventMapper registers a function for mapping an eventstore event to an event
 func (es *Eventstore) RegisterFilterEventMapper(eventType EventType, mapper func(*repository.Event) (Event, error)) *Eventstore {
 	if mapper == nil || eventType == "" {
 		return es
@@ -258,6 +258,8 @@ func uniqueConstraintActionToRepository(action UniqueConstraintAction) repositor
 		return repository.UniqueConstraintAdd
 	case UniqueConstraintRemove:
 		return repository.UniqueConstraintRemoved
+	case UniqueConstraintInstanceRemove:
+		return repository.UniqueConstraintInstanceRemoved
 	default:
 		return repository.UniqueConstraintAdd
 	}

internal/eventstore/repository/sql/crdb.go

@@ -92,6 +92,8 @@ const (
 
 	uniqueDelete = `DELETE FROM eventstore.unique_constraints
 					WHERE unique_type = $1 and unique_field = $2 and instance_id = $3`
+	uniqueDeleteInstance = `DELETE FROM eventstore.unique_constraints
+					WHERE instance_id = $1`
 )
 
 type CRDB struct {
@@ -193,7 +195,7 @@ func (db *CRDB) handleUniqueConstraints(ctx context.Context, tx *sql.Tx, uniqueC
 					return caos_errs.ThrowAlreadyExists(err, "SQL-M0dsf", uniqueConstraint.ErrorMessage)
 				}
 
-				return caos_errs.ThrowInternal(err, "SQL-dM9ds", "unable to create unique constraint ")
+				return caos_errs.ThrowInternal(err, "SQL-dM9ds", "unable to create unique constraint")
 			}
 		case repository.UniqueConstraintRemoved:
 			_, err := tx.ExecContext(ctx, uniqueDelete, uniqueConstraint.UniqueType, uniqueConstraint.UniqueField, uniqueConstraint.InstanceID)
@@ -201,7 +203,14 @@ func (db *CRDB) handleUniqueConstraints(ctx context.Context, tx *sql.Tx, uniqueC
 				logging.WithFields(
 					"unique_type", uniqueConstraint.UniqueType,
 					"unique_field", uniqueConstraint.UniqueField).WithError(err).Info("delete unique constraint failed")
-				return caos_errs.ThrowInternal(err, "SQL-6n88i", "unable to remove unique constraint ")
+				return caos_errs.ThrowInternal(err, "SQL-6n88i", "unable to remove unique constraint")
+			}
+		case repository.UniqueConstraintInstanceRemoved:
+			_, err := tx.ExecContext(ctx, uniqueDeleteInstance, uniqueConstraint.InstanceID)
+			if err != nil {
+				logging.WithFields(
+					"instance_id", uniqueConstraint.InstanceID).WithError(err).Info("delete instance unique constraints failed")
+				return caos_errs.ThrowInternal(err, "SQL-6n88i", "unable to remove unique constraints of instance")
 			}
 		}
 	}

internal/eventstore/repository/sql/crdb_test.go

@@ -379,24 +379,28 @@ func TestCRDB_Push_OneAggregate(t *testing.T) {
 				}},
 		},
 		{
-			name: "push 1 event and add asset",
+			name: "push 1 event and remove instance unique constraints",
 			args: args{
 				ctx: context.Background(),
 				events: []*repository.Event{
 					generateEvent(t, "12"),
 				},
+				uniqueConstraints:    generateRemoveInstanceUniqueConstraints(t, "instanceID"),
+				uniqueDataType:       "usernames",
+				uniqueDataField:      "testremove",
+				uniqueDataInstanceID: "instanceID",
 			},
 			res: res{
 				wantErr: false,
 				eventsRes: eventsRes{
 					pushedEventsCount: 1,
-					assetCount:        1,
+					uniqueCount:       0,
 					aggID:             []string{"12"},
 					aggType:           repository.AggregateType(t.Name()),
 				}},
 		},
 		{
-			name: "push 1 event and remove asset",
+			name: "push 1 event and add asset",
 			args: args{
 				ctx: context.Background(),
 				events: []*repository.Event{
@@ -407,11 +411,28 @@ func TestCRDB_Push_OneAggregate(t *testing.T) {
 				wantErr: false,
 				eventsRes: eventsRes{
 					pushedEventsCount: 1,
-					assetCount:        0,
+					assetCount:        1,
 					aggID:             []string{"13"},
 					aggType:           repository.AggregateType(t.Name()),
 				}},
 		},
+		{
+			name: "push 1 event and remove asset",
+			args: args{
+				ctx: context.Background(),
+				events: []*repository.Event{
+					generateEvent(t, "14"),
+				},
+			},
+			res: res{
+				wantErr: false,
+				eventsRes: eventsRes{
+					pushedEventsCount: 1,
+					assetCount:        0,
+					aggID:             []string{"14"},
+					aggType:           repository.AggregateType(t.Name()),
+				}},
+		},
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
@@ -1201,3 +1222,13 @@ func generateRemoveUniqueConstraint(t *testing.T, table, uniqueField string) *re
 
 	return e
 }
+
+func generateRemoveInstanceUniqueConstraints(t *testing.T, instanceID string) *repository.UniqueConstraint {
+	t.Helper()
+	e := &repository.UniqueConstraint{
+		InstanceID: instanceID,
+		Action:     repository.UniqueConstraintInstanceRemoved,
+	}
+
+	return e
+}

internal/eventstore/repository/unique_constraint.go

@@ -1,6 +1,6 @@
 package repository
 
-//UniqueCheck represents all information about a unique attribute
+// UniqueCheck represents all information about a unique attribute
 type UniqueConstraint struct {
 	//UniqueField is the field which should be unique
 	UniqueField string
@@ -23,6 +23,7 @@ type UniqueConstraintAction int32
 const (
 	UniqueConstraintAdd UniqueConstraintAction = iota
 	UniqueConstraintRemoved
+	UniqueConstraintInstanceRemoved
 
 	uniqueConstraintActionCount
 )

internal/eventstore/unique_constraint.go

@@ -18,6 +18,7 @@ type UniqueConstraintAction int32
 const (
 	UniqueConstraintAdd UniqueConstraintAction = iota
 	UniqueConstraintRemove
+	UniqueConstraintInstanceRemove
 )
 
 func NewAddEventUniqueConstraint(
@@ -42,6 +43,12 @@ func NewRemoveEventUniqueConstraint(
 	}
 }
 
+func NewRemoveInstanceUniqueConstraints() *EventUniqueConstraint {
+	return &EventUniqueConstraint{
+		Action: UniqueConstraintInstanceRemove,
+	}
+}
+
 func NewAddGlobalEventUniqueConstraint(
 	uniqueType,
 	uniqueField,

internal/iam/repository/view/idp_provider_view.go

@@ -112,3 +112,8 @@ func DeleteIDPProvidersByAggregateID(db *gorm.DB, table, aggregateID, instanceID
 	)
 	return delete(db)
 }
+
+func DeleteInstanceIDPProviders(db *gorm.DB, table, instanceID string) error {
+	delete := repository.PrepareDeleteByKey(table, model.IDPProviderSearchKey(iam_model.IDPProviderSearchKeyInstanceID), instanceID)
+	return delete(db)
+}

internal/iam/repository/view/idp_view.go

@@ -63,6 +63,10 @@ func DeleteIDP(db *gorm.DB, table, idpID, instanceID string) error {
 		repository.Key{model.IDPConfigSearchKey(iam_model.IDPConfigSearchKeyIdpConfigID), idpID},
 		repository.Key{model.IDPConfigSearchKey(iam_model.IDPConfigSearchKeyInstanceID), instanceID},
 	)
-
+	return delete(db)
+}
+
+func DeleteInstanceIDPs(db *gorm.DB, table, instanceID string) error {
+	delete := repository.PrepareDeleteByKey(table, model.IDPConfigSearchKey(iam_model.IDPConfigSearchKeyInstanceID), instanceID)
 	return delete(db)
 }

internal/iam/repository/view/styling.go

@@ -28,8 +28,7 @@ func PutStyling(db *gorm.DB, table string, policy *model.LabelPolicyView) error
 	return save(db, policy)
 }
 
-func DeleteStyling(db *gorm.DB, table, aggregateID string) error {
+func DeleteInstanceStyling(db *gorm.DB, table, instanceID string) error {
-	delete := repository.PrepareDeleteByKey(table, model.LabelPolicySearchKey(iam_model.LabelPolicySearchKeyAggregateID), aggregateID)
+	delete := repository.PrepareDeleteByKey(table, model.LabelPolicySearchKey(iam_model.LabelPolicySearchKeyInstanceID), instanceID)
-
 	return delete(db)
 }

internal/project/repository/view/org_project_mapping_view.go

@@ -37,6 +37,11 @@ func DeleteOrgProjectMapping(db *gorm.DB, table, orgID, projectID, instanceID st
 	return delete(db)
 }
 
+func DeleteInstanceOrgProjectMappings(db *gorm.DB, table, instanceID string) error {
+	delete := repository.PrepareDeleteByKey(table, model.OrgProjectMappingSearchKey(proj_model.OrgProjectMappingSearchKeyInstanceID), instanceID)
+	return delete(db)
+}
+
 func DeleteOrgProjectMappingsByProjectID(db *gorm.DB, table, projectID, instanceID string) error {
 	delete := repository.PrepareDeleteByKeys(table,
 		repository.Key{model.OrgProjectMappingSearchKey(proj_model.OrgProjectMappingSearchKeyProjectID), projectID},

internal/query/projection/action_test.go

@@ -179,7 +179,7 @@ func TestActionProjection_reduces(t *testing.T) {
 				event: getEvent(testEvent(
 					repository.EventType(instance.InstanceRemovedEventType),
 					instance.AggregateType,
-					[]byte(`{"name": "Name"}`),
+					nil,
 				), instance.InstanceRemovedEventMapper),
 			},
 			reduce: reduceInstanceRemovedHelper(ActionInstanceIDCol),

internal/query/projection/app_test.go

@@ -220,7 +220,7 @@ func TestAppProjection_reduces(t *testing.T) {
 				event: getEvent(testEvent(
 					repository.EventType(instance.InstanceRemovedEventType),
 					instance.AggregateType,
-					[]byte(`{"name": "Name"}`),
+					nil,
 				), instance.InstanceRemovedEventMapper),
 			},
 			reduce: reduceInstanceRemovedHelper(AppColumnInstanceID),

internal/query/projection/authn_key_test.go

@@ -226,7 +226,7 @@ func TestAuthNKeyProjection_reduces(t *testing.T) {
 				event: getEvent(testEvent(
 					repository.EventType(instance.InstanceRemovedEventType),
 					instance.AggregateType,
-					[]byte(`{"name": "Name"}`),
+					nil,
 				), instance.InstanceRemovedEventMapper),
 			},
 			reduce: reduceInstanceRemovedHelper(AuthNKeyInstanceIDCol),

internal/query/projection/custom_text_test.go

@@ -132,7 +132,7 @@ func TestCustomTextProjection_reduces(t *testing.T) {
 				event: getEvent(testEvent(
 					repository.EventType(instance.InstanceRemovedEventType),
 					instance.AggregateType,
-					[]byte(`{"name": "Name"}`),
+					nil,
 				), instance.InstanceRemovedEventMapper),
 			},
 			reduce: reduceInstanceRemovedHelper(CustomTextInstanceIDCol),

internal/query/projection/debug_notification_provider_test.go

@@ -217,7 +217,7 @@ func TestDebugNotificationProviderProjection_reduces(t *testing.T) {
 				event: getEvent(testEvent(
 					repository.EventType(instance.InstanceRemovedEventType),
 					instance.AggregateType,
-					[]byte(`{"name": "Name"}`),
+					nil,
 				), instance.InstanceRemovedEventMapper),
 			},
 			reduce: reduceInstanceRemovedHelper(DebugNotificationProviderInstanceIDCol),

internal/query/projection/domain_policy_test.go

@@ -129,7 +129,7 @@ func TestDomainPolicyProjection_reduces(t *testing.T) {
 				event: getEvent(testEvent(
 					repository.EventType(instance.InstanceRemovedEventType),
 					instance.AggregateType,
-					[]byte(`{"name": "Name"}`),
+					nil,
 				), instance.InstanceRemovedEventMapper),
 			},
 			reduce: reduceInstanceRemovedHelper(DomainPolicyInstanceIDCol),

internal/query/projection/flow_test.go

@@ -109,7 +109,7 @@ func TestFlowProjection_reduces(t *testing.T) {
 				event: getEvent(testEvent(
 					repository.EventType(instance.InstanceRemovedEventType),
 					instance.AggregateType,
-					[]byte(`{"name": "Name"}`),
+					nil,
 				), instance.InstanceRemovedEventMapper),
 			},
 			reduce: reduceInstanceRemovedHelper(FlowInstanceIDCol),

internal/query/projection/idp_login_policy_link_test.go

@@ -190,7 +190,7 @@ func TestIDPLoginPolicyLinkProjection_reduces(t *testing.T) {
 				event: getEvent(testEvent(
 					repository.EventType(instance.InstanceRemovedEventType),
 					instance.AggregateType,
-					[]byte(`{"name": "Name"}`),
+					nil,
 				), instance.InstanceRemovedEventMapper),
 			},
 			reduce: reduceInstanceRemovedHelper(IDPUserLinkInstanceIDCol),

internal/query/projection/idp_test.go

@@ -201,7 +201,7 @@ func TestIDPProjection_reduces(t *testing.T) {
 				event: getEvent(testEvent(
 					repository.EventType(instance.InstanceRemovedEventType),
 					instance.AggregateType,
-					[]byte(`{"name": "Name"}`),
+					nil,
 				), instance.InstanceRemovedEventMapper),
 			},
 			reduce: reduceInstanceRemovedHelper(IDPInstanceIDCol),

internal/query/projection/idp_user_link_test.go

@@ -154,7 +154,7 @@ func TestIDPUserLinkProjection_reduces(t *testing.T) {
 				event: getEvent(testEvent(
 					repository.EventType(instance.InstanceRemovedEventType),
 					instance.AggregateType,
-					[]byte(`{"name": "Name"}`),
+					nil,
 				), instance.InstanceRemovedEventMapper),
 			},
 			reduce: reduceInstanceRemovedHelper(IDPUserLinkInstanceIDCol),

internal/query/projection/instance_domain_test.go

@@ -85,7 +85,7 @@ func TestInstanceDomainProjection_reduces(t *testing.T) {
 				event: getEvent(testEvent(
 					repository.EventType(instance.InstanceRemovedEventType),
 					instance.AggregateType,
-					[]byte(`{"name": "Name"}`),
+					nil,
 				), instance.InstanceRemovedEventMapper),
 			},
 			reduce: reduceInstanceRemovedHelper(InstanceDomainInstanceIDCol),

internal/query/projection/instance_member_test.go

@@ -178,7 +178,7 @@ func TestInstanceMemberProjection_reduces(t *testing.T) {
 				event: getEvent(testEvent(
 					repository.EventType(instance.InstanceRemovedEventType),
 					instance.AggregateType,
-					[]byte(`{"name": "Name"}`),
+					nil,
 				), instance.InstanceRemovedEventMapper),
 			},
 			reduce: reduceInstanceRemovedHelper(MemberInstanceID),

internal/query/projection/instance_test.go

@@ -56,7 +56,7 @@ func TestInstanceProjection_reduces(t *testing.T) {
 				event: getEvent(testEvent(
 					repository.EventType(instance.InstanceRemovedEventType),
 					instance.AggregateType,
-					[]byte(`{"name": "Name"}`),
+					nil,
 				), instance.InstanceRemovedEventMapper),
 			},
 			reduce: reduceInstanceRemovedHelper(InstanceColumnID),

internal/query/projection/key_test.go

@@ -106,7 +106,7 @@ func TestKeyProjection_reduces(t *testing.T) {
 				event: getEvent(testEvent(
 					repository.EventType(instance.InstanceRemovedEventType),
 					instance.AggregateType,
-					[]byte(`{"name": "Name"}`),
+					nil,
 				), instance.InstanceRemovedEventMapper),
 			},
 			reduce: reduceInstanceRemovedHelper(KeyColumnInstanceID),

internal/query/projection/label_policy_test.go

@@ -131,7 +131,7 @@ func TestLabelPolicyProjection_reduces(t *testing.T) {
 				event: getEvent(testEvent(
 					repository.EventType(instance.InstanceRemovedEventType),
 					instance.AggregateType,
-					[]byte(`{"name": "Name"}`),
+					nil,
 				), instance.InstanceRemovedEventMapper),
 			},
 			reduce: reduceInstanceRemovedHelper(LabelPolicyInstanceIDCol),

internal/query/projection/lockout_policy_test.go

@@ -125,7 +125,7 @@ func TestLockoutPolicyProjection_reduces(t *testing.T) {
 				event: getEvent(testEvent(
 					repository.EventType(instance.InstanceRemovedEventType),
 					instance.AggregateType,
-					[]byte(`{"name": "Name"}`),
+					nil,
 				), instance.InstanceRemovedEventMapper),
 			},
 			reduce: reduceInstanceRemovedHelper(LockoutPolicyInstanceIDCol),

internal/query/projection/login_name.go

@@ -213,7 +213,7 @@ func (p *loginNameProjection) reducers() []handler.AggregateReducer {
 				},
 				{
 					Event:  instance.InstanceRemovedEventType,
-					Reduce: reduceInstanceRemovedHelper(LoginNameUserInstanceIDCol),
+					Reduce: p.reduceInstanceRemoved,
 				},
 			},
 		},
@@ -432,3 +432,32 @@ func (p *loginNameProjection) reduceDomainRemoved(event eventstore.Event) (*hand
 		crdb.WithTableSuffix(loginNameDomainSuffix),
 	), nil
 }
+
+func (p *loginNameProjection) reduceInstanceRemoved(event eventstore.Event) (*handler.Statement, error) {
+	e, ok := event.(*instance.InstanceRemovedEvent)
+	if !ok {
+		return nil, errors.ThrowInvalidArgumentf(nil, "HANDL-ASeg3", "reduce.wrong.event.type %s", instance.InstanceRemovedEventType)
+	}
+
+	return crdb.NewMultiStatement(
+		event,
+		crdb.AddDeleteStatement(
+			[]handler.Condition{
+				handler.NewCond(LoginNameDomainInstanceIDCol, e.Aggregate().ID),
+			},
+			crdb.WithTableSuffix(loginNameDomainSuffix),
+		),
+		crdb.AddDeleteStatement(
+			[]handler.Condition{
+				handler.NewCond(LoginNamePoliciesInstanceIDCol, e.Aggregate().ID),
+			},
+			crdb.WithTableSuffix(loginNamePolicySuffix),
+		),
+		crdb.AddDeleteStatement(
+			[]handler.Condition{
+				handler.NewCond(LoginNameUserInstanceIDCol, e.Aggregate().ID),
+			},
+			crdb.WithTableSuffix(loginNameUserSuffix),
+		),
+	), nil
+}

internal/query/projection/login_name_test.go

@@ -486,10 +486,10 @@ func TestLoginNameProjection_reduces(t *testing.T) {
 				event: getEvent(testEvent(
 					repository.EventType(instance.InstanceRemovedEventType),
 					instance.AggregateType,
-					[]byte(`{"name": "Name"}`),
+					nil,
 				), instance.InstanceRemovedEventMapper),
 			},
-			reduce: reduceInstanceRemovedHelper(LoginNameUserInstanceIDCol),
+			reduce: (&loginNameProjection{}).reduceInstanceRemoved,
 			want: wantReduce{
 				aggregateType:    eventstore.AggregateType("instance"),
 				sequence:         15,
@@ -497,7 +497,19 @@ func TestLoginNameProjection_reduces(t *testing.T) {
 				executer: &testExecuter{
 					executions: []execution{
 						{
-							expectedStmt: "DELETE FROM projections.login_names WHERE (instance_id = $1)",
+							expectedStmt: "DELETE FROM projections.login_names_domains WHERE (instance_id = $1)",
+							expectedArgs: []interface{}{
+								"agg-id",
+							},
+						},
+						{
+							expectedStmt: "DELETE FROM projections.login_names_policies WHERE (instance_id = $1)",
+							expectedArgs: []interface{}{
+								"agg-id",
+							},
+						},
+						{
+							expectedStmt: "DELETE FROM projections.login_names_users WHERE (instance_id = $1)",
 							expectedArgs: []interface{}{
 								"agg-id",
 							},

internal/query/projection/login_policy_test.go

@@ -543,7 +543,7 @@ func TestLoginPolicyProjection_reduces(t *testing.T) {
 				event: getEvent(testEvent(
 					repository.EventType(instance.InstanceRemovedEventType),
 					instance.AggregateType,
-					[]byte(`{"name": "Name"}`),
+					nil,
 				), instance.InstanceRemovedEventMapper),
 			},
 			reduce: reduceInstanceRemovedHelper(LoginPolicyInstanceIDCol),

internal/query/projection/mail_template.go

@@ -82,11 +82,6 @@ func (p *mailTemplateProjection) reducers() []handler.AggregateReducer {
 					Event:  instance.MailTemplateChangedEventType,
 					Reduce: p.reduceChanged,
 				},
-			},
-		},
-		{
-			Aggregate: instance.AggregateType,
-			EventRedusers: []handler.EventReducer{
 				{
 					Event:  instance.InstanceRemovedEventType,
 					Reduce: reduceInstanceRemovedHelper(MailTemplateInstanceIDCol),

internal/query/projection/mail_template_test.go

@@ -120,7 +120,7 @@ func TestMailTemplateProjection_reduces(t *testing.T) {
 				event: getEvent(testEvent(
 					repository.EventType(instance.InstanceRemovedEventType),
 					instance.AggregateType,
-					[]byte(`{"name": "Name"}`),
+					nil,
 				), instance.InstanceRemovedEventMapper),
 			},
 			reduce: reduceInstanceRemovedHelper(MailTemplateInstanceIDCol),

internal/query/projection/message_text_test.go

@@ -336,7 +336,7 @@ func TestMessageTextProjection_reduces(t *testing.T) {
 				event: getEvent(testEvent(
 					repository.EventType(instance.InstanceRemovedEventType),
 					instance.AggregateType,
-					[]byte(`{"name": "Name"}`),
+					nil,
 				), instance.InstanceRemovedEventMapper),
 			},
 			reduce: reduceInstanceRemovedHelper(MessageTextInstanceIDCol),

internal/query/projection/oidc_settings.go

@@ -66,11 +66,6 @@ func (p *oidcSettingsProjection) reducers() []handler.AggregateReducer {
 					Event:  instance.OIDCSettingsChangedEventType,
 					Reduce: p.reduceOIDCSettingsChanged,
 				},
-			},
-		},
-		{
-			Aggregate: instance.AggregateType,
-			EventRedusers: []handler.EventReducer{
 				{
 					Event:  instance.InstanceRemovedEventType,
 					Reduce: reduceInstanceRemovedHelper(OIDCSettingsColumnInstanceID),

internal/query/projection/oidc_settings_test.go

@@ -94,7 +94,7 @@ func TestOIDCSettingsProjection_reduces(t *testing.T) {
 				event: getEvent(testEvent(
 					repository.EventType(instance.InstanceRemovedEventType),
 					instance.AggregateType,
-					[]byte(`{"name": "Name"}`),
+					nil,
 				), instance.InstanceRemovedEventMapper),
 			},
 			reduce: reduceInstanceRemovedHelper(OIDCSettingsColumnInstanceID),

internal/query/projection/org_domain_test.go

@@ -194,7 +194,7 @@ func TestOrgDomainProjection_reduces(t *testing.T) {
 				event: getEvent(testEvent(
 					repository.EventType(instance.InstanceRemovedEventType),
 					instance.AggregateType,
-					[]byte(`{"name": "Name"}`),
+					nil,
 				), instance.InstanceRemovedEventMapper),
 			},
 			reduce: reduceInstanceRemovedHelper(OrgDomainInstanceIDCol),

internal/query/projection/org_member_test.go

@@ -208,7 +208,7 @@ func TestOrgMemberProjection_reduces(t *testing.T) {
 				event: getEvent(testEvent(
 					repository.EventType(instance.InstanceRemovedEventType),
 					instance.AggregateType,
-					[]byte(`{"name": "Name"}`),
+					nil,
 				), instance.InstanceRemovedEventMapper),
 			},
 			reduce: reduceInstanceRemovedHelper(MemberInstanceID),

internal/query/projection/org_metadata.go

@@ -7,6 +7,7 @@ import (
 	"github.com/zitadel/zitadel/internal/eventstore"
 	"github.com/zitadel/zitadel/internal/eventstore/handler"
 	"github.com/zitadel/zitadel/internal/eventstore/handler/crdb"
+	"github.com/zitadel/zitadel/internal/repository/instance"
 	"github.com/zitadel/zitadel/internal/repository/org"
 )
 
@@ -73,6 +74,15 @@ func (p *orgMetadataProjection) reducers() []handler.AggregateReducer {
 				},
 			},
 		},
+		{
+			Aggregate: instance.AggregateType,
+			EventRedusers: []handler.EventReducer{
+				{
+					Event:  instance.InstanceRemovedEventType,
+					Reduce: reduceInstanceRemovedHelper(OrgMetadataColumnInstanceID),
+				},
+			},
+		},
 	}
 }
 

internal/query/projection/org_metadata_test.go

@@ -7,6 +7,7 @@ import (
 	"github.com/zitadel/zitadel/internal/eventstore"
 	"github.com/zitadel/zitadel/internal/eventstore/handler"
 	"github.com/zitadel/zitadel/internal/eventstore/repository"
+	"github.com/zitadel/zitadel/internal/repository/instance"
 	"github.com/zitadel/zitadel/internal/repository/org"
 )
 
@@ -137,6 +138,32 @@ func TestOrgMetadataProjection_reduces(t *testing.T) {
 				},
 			},
 		},
+		{
+			name: "reduceInstanceRemoved",
+			args: args{
+				event: getEvent(testEvent(
+					repository.EventType(instance.InstanceRemovedEventType),
+					instance.AggregateType,
+					nil,
+				), instance.InstanceRemovedEventMapper),
+			},
+			reduce: reduceInstanceRemovedHelper(MemberInstanceID),
+			want: wantReduce{
+				aggregateType:    eventstore.AggregateType("instance"),
+				sequence:         15,
+				previousSequence: 10,
+				executer: &testExecuter{
+					executions: []execution{
+						{
+							expectedStmt: "DELETE FROM projections.org_metadata WHERE (instance_id = $1)",
+							expectedArgs: []interface{}{
+								"agg-id",
+							},
+						},
+					},
+				},
+			},
+		},
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {

internal/query/projection/org_test.go

@@ -194,7 +194,7 @@ func TestOrgProjection_reduces(t *testing.T) {
 				event: getEvent(testEvent(
 					repository.EventType(instance.InstanceRemovedEventType),
 					instance.AggregateType,
-					[]byte(`{"name": "Name"}`),
+					nil,
 				), instance.InstanceRemovedEventMapper),
 			},
 			reduce: reduceInstanceRemovedHelper(OrgColumnInstanceID),

internal/query/projection/password_age_policy_test.go

@@ -125,7 +125,7 @@ func TestPasswordAgeProjection_reduces(t *testing.T) {
 				event: getEvent(testEvent(
 					repository.EventType(instance.InstanceRemovedEventType),
 					instance.AggregateType,
-					[]byte(`{"name": "Name"}`),
+					nil,
 				), instance.InstanceRemovedEventMapper),
 			},
 			reduce: reduceInstanceRemovedHelper(AgePolicyInstanceIDCol),

internal/query/projection/password_complexity_policy_test.go

@@ -137,7 +137,7 @@ func TestPasswordComplexityProjection_reduces(t *testing.T) {
 				event: getEvent(testEvent(
 					repository.EventType(instance.InstanceRemovedEventType),
 					instance.AggregateType,
-					[]byte(`{"name": "Name"}`),
+					nil,
 				), instance.InstanceRemovedEventMapper),
 			},
 			reduce: reduceInstanceRemovedHelper(ComplexityPolicyInstanceIDCol),

internal/query/projection/privacy_policy_test.go

@@ -128,7 +128,7 @@ func TestPrivacyPolicyProjection_reduces(t *testing.T) {
 				event: getEvent(testEvent(
 					repository.EventType(instance.InstanceRemovedEventType),
 					instance.AggregateType,
-					[]byte(`{"name": "Name"}`),
+					nil,
 				), instance.InstanceRemovedEventMapper),
 			},
 			reduce: reduceInstanceRemovedHelper(PrivacyPolicyInstanceIDCol),

internal/query/projection/project_grant_member_test.go

@@ -216,7 +216,7 @@ func TestProjectGrantMemberProjection_reduces(t *testing.T) {
 				event: getEvent(testEvent(
 					repository.EventType(instance.InstanceRemovedEventType),
 					instance.AggregateType,
-					[]byte(`{"name": "Name"}`),
+					nil,
 				), instance.InstanceRemovedEventMapper),
 			},
 			reduce: reduceInstanceRemovedHelper(MemberInstanceID),

internal/query/projection/project_grant_test.go

@@ -55,7 +55,7 @@ func TestProjectGrantProjection_reduces(t *testing.T) {
 				event: getEvent(testEvent(
 					repository.EventType(instance.InstanceRemovedEventType),
 					instance.AggregateType,
-					[]byte(`{"name": "Name"}`),
+					nil,
 				), instance.InstanceRemovedEventMapper),
 			},
 			reduce: reduceInstanceRemovedHelper(ProjectGrantColumnInstanceID),

internal/query/projection/project_member_test.go

@@ -209,7 +209,7 @@ func TestProjectMemberProjection_reduces(t *testing.T) {
 				event: getEvent(testEvent(
 					repository.EventType(instance.InstanceRemovedEventType),
 					instance.AggregateType,
-					[]byte(`{"name": "Name"}`),
+					nil,
 				), instance.InstanceRemovedEventMapper),
 			},
 			reduce: reduceInstanceRemovedHelper(MemberInstanceID),

internal/query/projection/project_role_test.go

@@ -53,7 +53,7 @@ func TestProjectRoleProjection_reduces(t *testing.T) {
 				event: getEvent(testEvent(
 					repository.EventType(instance.InstanceRemovedEventType),
 					instance.AggregateType,
-					[]byte(`{"name": "Name"}`),
+					nil,
 				), instance.InstanceRemovedEventMapper),
 			},
 			reduce: reduceInstanceRemovedHelper(ProjectRoleColumnInstanceID),

internal/query/projection/project_test.go

@@ -54,7 +54,7 @@ func TestProjectProjection_reduces(t *testing.T) {
 				event: getEvent(testEvent(
 					repository.EventType(instance.InstanceRemovedEventType),
 					instance.AggregateType,
-					[]byte(`{"name": "Name"}`),
+					nil,
 				), instance.InstanceRemovedEventMapper),
 			},
 			reduce: reduceInstanceRemovedHelper(ProjectColumnInstanceID),

internal/query/projection/secret_generator.go

@@ -76,6 +76,10 @@ func (p *secretGeneratorProjection) reducers() []handler.AggregateReducer {
 					Event:  instance.SecretGeneratorRemovedEventType,
 					Reduce: p.reduceSecretGeneratorRemoved,
 				},
+				{
+					Event:  instance.InstanceRemovedEventType,
+					Reduce: reduceInstanceRemovedHelper(SecretGeneratorColumnInstanceID),
+				},
 			},
 		},
 	}

internal/query/projection/secret_generator_test.go

@@ -122,6 +122,32 @@ func TestSecretGeneratorProjection_reduces(t *testing.T) {
 				},
 			},
 		},
+		{
+			name: "reduceInstanceRemoved",
+			args: args{
+				event: getEvent(testEvent(
+					repository.EventType(instance.InstanceRemovedEventType),
+					instance.AggregateType,
+					nil,
+				), instance.InstanceRemovedEventMapper),
+			},
+			reduce: reduceInstanceRemovedHelper(MemberInstanceID),
+			want: wantReduce{
+				aggregateType:    eventstore.AggregateType("instance"),
+				sequence:         15,
+				previousSequence: 10,
+				executer: &testExecuter{
+					executions: []execution{
+						{
+							expectedStmt: "DELETE FROM projections.secret_generators2 WHERE (instance_id = $1)",
+							expectedArgs: []interface{}{
+								"agg-id",
+							},
+						},
+					},
+				},
+			},
+		},
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {

internal/query/projection/sms_test.go

@@ -271,7 +271,7 @@ func TestSMSProjection_reduces(t *testing.T) {
 				event: getEvent(testEvent(
 					repository.EventType(instance.InstanceRemovedEventType),
 					instance.AggregateType,
-					[]byte(`{"name": "Name"}`),
+					nil,
 				), instance.InstanceRemovedEventMapper),
 			},
 			reduce: reduceInstanceRemovedHelper(SMSColumnInstanceID),

internal/query/projection/smtp_test.go

@@ -151,7 +151,7 @@ func TestSMTPConfigProjection_reduces(t *testing.T) {
 				event: getEvent(testEvent(
 					repository.EventType(instance.InstanceRemovedEventType),
 					instance.AggregateType,
-					[]byte(`{"name": "Name"}`),
+					nil,
 				), instance.InstanceRemovedEventMapper),
 			},
 			reduce: reduceInstanceRemovedHelper(SMTPConfigColumnInstanceID),

internal/query/projection/user_auth_method_test.go

@@ -244,7 +244,7 @@ func TestUserAuthMethodProjection_reduces(t *testing.T) {
 				event: getEvent(testEvent(
 					repository.EventType(instance.InstanceRemovedEventType),
 					instance.AggregateType,
-					[]byte(`{"name": "Name"}`),
+					nil,
 				), instance.InstanceRemovedEventMapper),
 			},
 			reduce: reduceInstanceRemovedHelper(UserAuthMethodInstanceIDCol),

internal/query/projection/user_grant_test.go

@@ -159,7 +159,7 @@ func TestUserGrantProjection_reduces(t *testing.T) {
 				event: getEvent(testEvent(
 					repository.EventType(instance.InstanceRemovedEventType),
 					instance.AggregateType,
-					[]byte(`{"name": "Name"}`),
+					nil,
 				), instance.InstanceRemovedEventMapper),
 			},
 			reduce: reduceInstanceRemovedHelper(UserGrantInstanceID),

internal/query/projection/user_metadata_test.go

@@ -144,7 +144,7 @@ func TestUserMetadataProjection_reduces(t *testing.T) {
 				event: getEvent(testEvent(
 					repository.EventType(instance.InstanceRemovedEventType),
 					instance.AggregateType,
-					[]byte(`{"name": "Name"}`),
+					nil,
 				), instance.InstanceRemovedEventMapper),
 			},
 			reduce: reduceInstanceRemovedHelper(UserMetadataColumnInstanceID),

internal/query/projection/user_personal_access_token_test.go

@@ -115,7 +115,7 @@ func TestPersonalAccessTokenProjection_reduces(t *testing.T) {
 				event: getEvent(testEvent(
 					repository.EventType(instance.InstanceRemovedEventType),
 					instance.AggregateType,
-					[]byte(`{"name": "Name"}`),
+					nil,
 				), instance.InstanceRemovedEventMapper),
 			},
 			reduce: reduceInstanceRemovedHelper(PersonalAccessTokenColumnInstanceID),

internal/query/projection/user_test.go

@@ -1623,7 +1623,7 @@ func TestUserProjection_reduces(t *testing.T) {
 				event: getEvent(testEvent(
 					repository.EventType(instance.InstanceRemovedEventType),
 					instance.AggregateType,
-					[]byte(`{"name": "Name"}`),
+					nil,
 				), instance.InstanceRemovedEventMapper),
 			},
 			reduce: reduceInstanceRemovedHelper(UserInstanceIDCol),

internal/repository/instance/instance.go

@@ -92,17 +92,23 @@ func InstanceChangedEventMapper(event *repository.Event) (eventstore.Event, erro
 type InstanceRemovedEvent struct {
 	eventstore.BaseEvent `json:"-"`
 	name                 string
+	domains              []string
 }
 
 func (e *InstanceRemovedEvent) Data() interface{} {
-	return e
-}
-
-func (e *InstanceRemovedEvent) UniqueConstraints() []*eventstore.EventUniqueConstraint {
 	return nil
 }
 
-func NewInstanceRemovedEvent(ctx context.Context, aggregate *eventstore.Aggregate, name string) *InstanceRemovedEvent {
+func (e *InstanceRemovedEvent) UniqueConstraints() []*eventstore.EventUniqueConstraint {
+	constraints := make([]*eventstore.EventUniqueConstraint, len(e.domains)+1)
+	for i, domain := range e.domains {
+		constraints[i] = NewRemoveInstanceDomainUniqueConstraint(domain)
+	}
+	constraints[len(e.domains)] = eventstore.NewRemoveInstanceUniqueConstraints()
+	return constraints
+}
+
+func NewInstanceRemovedEvent(ctx context.Context, aggregate *eventstore.Aggregate, name string, domains []string) *InstanceRemovedEvent {
 	return &InstanceRemovedEvent{
 		BaseEvent: *eventstore.NewBaseEventForPush(
 			ctx,
@@ -110,17 +116,12 @@ func NewInstanceRemovedEvent(ctx context.Context, aggregate *eventstore.Aggregat
 			InstanceRemovedEventType,
 		),
 		name:    name,
+		domains: domains,
 	}
 }
 
 func InstanceRemovedEventMapper(event *repository.Event) (eventstore.Event, error) {
-	instanceRemoved := &InstanceRemovedEvent{
+	return &InstanceRemovedEvent{
 		BaseEvent: *eventstore.BaseEventFromRepo(event),
-	}
+	}, nil
-	err := json.Unmarshal(event.Data, instanceRemoved)
-	if err != nil {
-		return nil, errors.ThrowInternal(err, "INSTANCE-39jlW", "unable to unmarshal instance removed")
-	}
-
-	return instanceRemoved, nil
 }

internal/static/database/crdb.go

@@ -180,3 +180,20 @@ func (c *crdbStorage) RemoveObjects(ctx context.Context, instanceID, resourceOwn
 	}
 	return nil
 }
+
+func (c *crdbStorage) RemoveInstanceObjects(ctx context.Context, instanceID string) error {
+	stmt, args, err := squirrel.Delete(assetsTable).
+		Where(squirrel.Eq{
+			AssetColInstanceID: instanceID,
+		}).
+		PlaceholderFormat(squirrel.Dollar).
+		ToSql()
+	if err != nil {
+		return caos_errors.ThrowInternal(err, "DATAB-Sfgeq", "Errors.Internal")
+	}
+	_, err = c.client.ExecContext(ctx, stmt, args...)
+	if err != nil {
+		return caos_errors.ThrowInternal(err, "DATAB-Efgt2", "Errors.Assets.Object.RemoveFailed")
+	}
+	return nil
+}

internal/static/database/crdb_test.go

@@ -35,6 +35,8 @@ const (
 		" WHERE asset_type = $1" +
 		" AND instance_id = $2" +
 		" AND resource_owner = $3"
+	removeInstanceObjectsStmt = "DELETE FROM system.assets" +
+		" WHERE instance_id = $1"
 )
 
 func Test_crdbStorage_CreateObject(t *testing.T) {
@@ -224,6 +226,50 @@ func Test_crdbStorage_RemoveObjects(t *testing.T) {
 		})
 	}
 }
+func Test_crdbStorage_RemoveInstanceObjects(t *testing.T) {
+	type fields struct {
+		client db
+	}
+	type args struct {
+		ctx        context.Context
+		instanceID string
+	}
+	tests := []struct {
+		name    string
+		fields  fields
+		args    args
+		wantErr bool
+	}{
+		{
+			"remove ok",
+			fields{
+				client: prepareDB(t,
+					expectExec(
+						removeInstanceObjectsStmt,
+						nil,
+						"instanceID",
+					)),
+			},
+			args{
+				ctx:        context.Background(),
+				instanceID: "instanceID",
+			},
+			false,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			c := &crdbStorage{
+				client: tt.fields.client.db,
+			}
+			err := c.RemoveInstanceObjects(tt.args.ctx, tt.args.instanceID)
+			if (err != nil) != tt.wantErr {
+				t.Errorf("RemoveInstanceObjects() error = %v, wantErr %v", err, tt.wantErr)
+				return
+			}
+		})
+	}
+}
 
 type db struct {
 	mock sqlmock.Sqlmock

internal/static/mock/storage_mock.go

@@ -82,6 +82,20 @@ func (mr *MockStorageMockRecorder) PutObject(ctx, instanceID, location, resource
 	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "PutObject", reflect.TypeOf((*MockStorage)(nil).PutObject), ctx, instanceID, location, resourceOwner, name, contentType, objectType, object, objectSize)
 }
 
+// RemoveInstanceObjects mocks base method.
+func (m *MockStorage) RemoveInstanceObjects(ctx context.Context, instanceID string) error {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "RemoveInstanceObjects", ctx, instanceID)
+	ret0, _ := ret[0].(error)
+	return ret0
+}
+
+// RemoveInstanceObjects indicates an expected call of RemoveInstanceObjects.
+func (mr *MockStorageMockRecorder) RemoveInstanceObjects(ctx, instanceID interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "RemoveInstanceObjects", reflect.TypeOf((*MockStorage)(nil).RemoveInstanceObjects), ctx, instanceID)
+}
+
 // RemoveObject mocks base method.
 func (m *MockStorage) RemoveObject(ctx context.Context, instanceID, resourceOwner, name string) error {
 	m.ctrl.T.Helper()

internal/static/s3/minio.go

@@ -136,6 +136,11 @@ func (m *Minio) RemoveObjects(ctx context.Context, instanceID, resourceOwner str
 	return g.Wait()
 }
 
+func (m *Minio) RemoveInstanceObjects(ctx context.Context, instanceID string) error {
+	bucketName := m.prefixBucketName(instanceID)
+	return m.Client.RemoveBucket(ctx, bucketName)
+}
+
 func (m *Minio) createBucket(ctx context.Context, name, location string) error {
 	if location == "" {
 		location = m.Location

internal/static/storage.go

@@ -15,6 +15,7 @@ type Storage interface {
 	GetObjectInfo(ctx context.Context, instanceID, resourceOwner, name string) (*Asset, error)
 	RemoveObject(ctx context.Context, instanceID, resourceOwner, name string) error
 	RemoveObjects(ctx context.Context, instanceID, resourceOwner string, objectType ObjectType) error
+	RemoveInstanceObjects(ctx context.Context, instanceID string) error
 	//TODO: add functionality to move asset location
 }
 

internal/user/repository/view/external_idp_view.go

@@ -115,3 +115,8 @@ func DeleteExternalIDPsByUserID(db *gorm.DB, table, userID, instanceID string) e
 	)
 	return delete(db)
 }
+
+func DeleteInstanceExternalIDPs(db *gorm.DB, table, instanceID string) error {
+	delete := repository.PrepareDeleteByKey(table, model.ExternalIDPSearchKey(usr_model.ExternalIDPSearchKeyInstanceID), instanceID)
+	return delete(db)
+}

internal/user/repository/view/refresh_token_view.go

@@ -94,3 +94,8 @@ func DeleteApplicationRefreshTokens(db *gorm.DB, table string, appIDs []string)
 	delete := repository.PrepareDeleteByKey(table, usr_model.RefreshTokenSearchKey(model.RefreshTokenSearchKeyApplicationID), appIDs)
 	return delete(db)
 }
+
+func DeleteInstanceRefreshTokens(db *gorm.DB, table string, instanceID string) error {
+	delete := repository.PrepareDeleteByKey(table, usr_model.RefreshTokenSearchKey(model.RefreshTokenSearchKeyInstanceID), instanceID)
+	return delete(db)
+}

internal/user/repository/view/token_view.go

@@ -97,3 +97,8 @@ func DeleteApplicationTokens(db *gorm.DB, table, instanceID string, appIDs []str
 	)
 	return delete(db)
 }
+
+func DeleteInstanceTokens(db *gorm.DB, table, instanceID string) error {
+	delete := repository.PrepareDeleteByKey(table, usr_model.TokenSearchKey(model.TokenSearchKeyInstanceID), instanceID)
+	return delete(db)
+}

internal/user/repository/view/user_session_view.go

@@ -125,3 +125,8 @@ func DeleteUserSessions(db *gorm.DB, table, userID, instanceID string) error {
 	)
 	return delete(db)
 }
+
+func DeleteInstanceUserSessions(db *gorm.DB, table, instanceID string) error {
+	delete := repository.PrepareDeleteByKey(table, model.UserSessionSearchKey(usr_model.UserSessionSearchKeyInstanceID), instanceID)
+	return delete(db)
+}

internal/user/repository/view/user_view.go

@@ -204,3 +204,8 @@ func DeleteUser(db *gorm.DB, table, userID, instanceID string) error {
 	)
 	return delete(db)
 }
+
+func DeleteInstanceUsers(db *gorm.DB, table, instanceID string) error {
+	delete := repository.PrepareDeleteByKey(table, model.UserSearchKey(usr_model.UserSearchKeyInstanceID), instanceID)
+	return delete(db)
+}