fix(server/v2/store): fix store server flags (#21745)

server/v2/store/commands.go

@@ -91,7 +91,7 @@ func createRootStore(cmd *cobra.Command, v *viper.Viper, logger log.Logger) (sto
 		}
 		dbType = db.DBType(dbStr)
 	} else {
-		dbType = db.DBType(v.GetString("store.app-db-backend"))
+		dbType = db.DBType(v.GetString(FlagAppDBBackend))
 	}
 	scRawDb, err := db.NewDB(dbType, "application", filepath.Join(rootDir, "data"), nil)
 	if err != nil {

server/v2/store/flags.go

@@ -1,7 +1,16 @@
 package store
 
-const (
-	FlagAppDBBackend = "app-db-backend"
-	FlagKeepRecent   = "keep-recent"
-	FlagInterval     = "interval"
+import "fmt"
+
+// start flags are prefixed with the server name
+// as the config in prefixed with the server name
+// this allows viper to properly bind the flags
+func prefix(f string) string {
+	return fmt.Sprintf("%s.%s", ServerName, f)
+}
+
+var (
+	FlagAppDBBackend = prefix("app-db-backend")
+	FlagKeepRecent   = prefix("keep-recent")
+	FlagInterval     = prefix("interval")
 )

server/v2/store/server.go

@@ -11,6 +11,14 @@ import (
 	serverv2 "cosmossdk.io/server/v2"
 )
 
+var (
+	_ serverv2.ServerComponent[transaction.Tx] = (*StoreComponent[transaction.Tx])(nil)
+	_ serverv2.HasConfig                       = (*StoreComponent[transaction.Tx])(nil)
+	_ serverv2.HasCLICommands                  = (*StoreComponent[transaction.Tx])(nil)
+)
+
+const ServerName = "store"
+
 // StoreComponent manages store config
 // and contains prune & snapshot commands
 type StoreComponent[T transaction.Tx] struct {
@@ -35,7 +43,7 @@ func (s *StoreComponent[T]) Init(appI serverv2.AppI[T], cfg map[string]any, logg
 }
 
 func (s *StoreComponent[T]) Name() string {
-	return "store"
+	return ServerName
 }
 
 func (s *StoreComponent[T]) Start(ctx context.Context) error {