app/platform: move failover config initialization to platform (#21281)

app/platform/config.go

@@ -36,15 +36,6 @@ type ServiceConfig struct {
 	Cluster einterfaces.ClusterInterface
 }
 
-func (c *ServiceConfig) validate() error {
-	// Mandatory fields need to be checked here
-	if c.ConfigStore == nil {
-		return errors.New("ConfigStore is required")
-	}
-
-	return nil
-}
-
 // ensure the config wrapper implements `product.ConfigService`
 var _ product.ConfigService = (*PlatformService)(nil)
 

app/platform/service.go

@@ -97,10 +97,6 @@ type PlatformService struct {
 
 // New creates a new PlatformService.
 func New(sc ServiceConfig, options ...Option) (*PlatformService, error) {
-	if err := sc.validate(); err != nil {
-		return nil, err
-	}
-
 	// Step 0: Create the PlatformService.
 	// ConfigStore is and should be handled on a upper level.
 	ps := &PlatformService{
@@ -138,6 +134,21 @@ func New(sc ServiceConfig, options ...Option) (*PlatformService, error) {
 		}
 	}
 
+	// the config store is not set, we need to create a new one
+	if ps.configStore == nil {
+		innerStore, err := config.NewFileStore("config.json", true)
+		if err != nil {
+			return nil, fmt.Errorf("failed to load config from file: %w", err)
+		}
+
+		configStore, err := config.NewStoreFromBacking(innerStore, nil, false)
+		if err != nil {
+			return nil, fmt.Errorf("failed to load config from file: %w", err)
+		}
+
+		ps.configStore = configStore
+	}
+
 	// Step 2: Start logging.
 	if err := ps.initLogging(); err != nil {
 		return nil, fmt.Errorf("failed to initialize logging: %w", err)