Add config file support to CLI parser

Add -f/--config-file flag for loading YAML configs from local or remote sources. Fix error handling to return unmatched errors.

cmd/cli/main.go

@@ -12,7 +12,7 @@ import (
 
 func main() {
 	cliParser := config.NewConfigCLIParser(os.Args)
-	_, err := cliParser.Parse()
+	cfg, err := cliParser.Parse()
 
 	_ = utils.HandleErrorOrDie(err,
 		utils.OnSentinelError(types.ErrCLINoArgs, func(err error) error {
@@ -34,6 +34,8 @@ func main() {
 			return nil
 		}),
 	)
+
+	fmt.Println(cfg)
 }
 
 func printValidationErrors(parserName string, errors ...types.FieldParseError) {