Method generateInstance

backend/component/sampleinstance/manager.go:218–314

(
	ctx context.Context,
	projectID string,
	instanceMessage *store.InstanceMessage,
	schemaSyncer *schemasync.Syncer,
)

}

func (m *Manager) generateInstance(
	ctx context.Context,
	projectID string,
	instanceMessage *store.InstanceMessage,
	schemaSyncer *schemasync.Syncer,
) error {
	// Generate Sample Instance
	instance, err := m.store.GetInstance(ctx, &store.FindInstanceMessage{
		Workspace:  instanceMessage.Workspace,
		ResourceID: &instanceMessage.ResourceID,
	})
	if err != nil {
		return errors.Wrapf(err, "failed to find onboarding instance %v", instanceMessage.ResourceID)
	}
	if instance == nil {
		sampleInstance, err := m.store.CreateInstance(ctx, &store.InstanceMessage{
			Workspace:     instanceMessage.Workspace,
			ResourceID:    instanceMessage.ResourceID,
			EnvironmentID: instanceMessage.EnvironmentID,
			Metadata: &storepb.Instance{
				Title:        instanceMessage.Metadata.Title,
				Engine:       storepb.Engine_POSTGRES,
				ExternalLink: "",
				Activation:   false,
				DataSources: []*storepb.DataSource{
					{
						Id:       "admin",
						Type:     storepb.DataSourceType_ADMIN,
						Username: postgres.SampleUser,
						Password: "",
						Host:     common.GetPostgresSocketDir(),
						Port:     instanceMessage.Metadata.DataSources[0].Port,
						Database: instanceMessage.Metadata.DataSources[0].Database,
					},
				},
			},
		})
		if err != nil {
			return errors.Wrapf(err, "failed to create onboarding instance %v", instanceMessage.ResourceID)
		}
		instance = sampleInstance

		// Start the sample instance if needed
		if err := m.HandleInstanceCreation(ctx, instance.ResourceID); err != nil {
			slog.Warn("failed to start sample instance during onboarding", log.BBError(err), slog.String("instance", instance.ResourceID))
		}
	}

	// Sync the instance schema so we can transfer the sample database later.
	if _, _, _, err := schemaSyncer.SyncInstance(ctx, instance); err != nil {
		return errors.Wrapf(err, "failed to sync onboarding instance %v", instance.ResourceID)
	}

	dbName := instanceMessage.Metadata.DataSources[0].Database
	// Transfer sample database to the just created project.
	transferDatabaseMessage := &store.UpdateDatabaseMessage{
		InstanceID:   instance.ResourceID,
		DatabaseName: dbName,