feat #4: add storage config in config file

polyculeconnect/config/config.go

@@ -40,12 +40,19 @@ const (
 	ModeNet
 )
 
+type BackendConfigType string
+
+const (
+	Memory BackendConfigType = "memory"
+	SQLite BackendConfigType = "sqlite"
+)
+
 type BackendConfig struct {
-	Config *oidc.Config `json:"config"`
-	Name   string       `json:"name"`
-	ID     string       `json:"ID"`
-	Type   string       `json:"type"`
-	Local  bool         `json:"local"`
+	Config *oidc.Config      `json:"config"`
+	Name   string            `json:"name"`
+	ID     string            `json:"ID"`
+	Type   BackendConfigType `json:"type"`
+	Local  bool              `json:"local"`
 }
 
 type OpenConnectConfig struct {

polyculeconnect/main.go

@@ -61,7 +61,7 @@ func main() {
 
 	storageType, err := initStorage(conf)
 	if err != nil {
-		logger.L.Errorf("Failed to initialize storage backend: %s", err.Error())
+		logger.L.Fatalf("Failed to initialize storage backend: %s", err.Error())
 	}
 	logger.L.Infof("Initialized storage backend \"%s\"", conf.StorageType)
 	dexConf := dex_server.Config{
@@ -99,7 +99,7 @@ func main() {
 		if err := dexConf.Storage.CreateConnector(storage.Connector{
 			ID:     backend.ID,
 			Name:   backend.Name,
-			Type:   backend.Type,
+			Type:   string(backend.Type),
 			Config: backendConfJson,
 		}); err != nil {
 			logger.L.Errorf("Failed to add connector for backend %q to stage: %s", backend.Name, err.Error())