complete nested config files

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

cmd/servicechecker/main.go

@@ -65,17 +65,24 @@ func main() {
 	}
 
 	meters["default"] = m
+
+	l.Info(ctx, "try to parse config.yaml")
 	f, err := os.Open("config.yaml")
 	if err != nil {
 		l.Fatal(ctx, "failed to open config", err)
 	}
-	defer f.Close()
+
 	cfg := &config.Config{}
-	if err = cfg.Parse(f); err != nil {
+
+	if err = config.Parse(f, cfg); err != nil {
+		f.Close()
 		l.Fatal(ctx, "failed to open config", err)
 	}
+	f.Close()
 
 	if cfg.App.ChecksDir != "" {
+		var configFiles []string
+
 		if !filepath.IsAbs(cfg.App.ChecksDir) {
 			dir, _ := os.Getwd()
 			cfg.App.ChecksDir = filepath.Clean(filepath.Join(dir, cfg.App.ChecksDir))
@@ -83,17 +90,40 @@ func main() {
 
 		err = filepath.WalkDir(cfg.App.ChecksDir, func(path string, info fs.DirEntry, err error) error {
 			if err != nil {
-				//	fmt.Printf("prevent panic by handling failure accessing a path %q: %v\n", path, err)
 				return err
 			}
-			if info.IsDir() {
+
+			if info.IsDir() || !info.Type().IsRegular() {
 				return nil
 			}
+
+			if filepath.Ext(info.Name()) != ".yaml" {
+				return nil
+			}
+
+			configFiles = append(configFiles, path)
+
 			return nil
 		})
 		if err != nil {
 			l.Fatal(ctx, fmt.Sprintf("error loading config: %s", cfg.App.ChecksDir), err)
 		}
+
+		for _, configFile := range configFiles {
+			l.Info(ctx, "try to parse "+configFile)
+			f, err := os.Open(configFile)
+			if err != nil {
+				l.Fatal(ctx, "failed to open config", err)
+			}
+
+			checks := []*config.CheckConfig{}
+			if err = config.Parse(f, &checks); err != nil {
+				f.Close()
+				l.Fatal(ctx, "failed to open config", err)
+			}
+			f.Close()
+			cfg.App.Checks = append(cfg.App.Checks, checks...)
+		}
 	}
 
 	if !cfg.App.MultiUser {

pkg/config/config.go

@@ -66,7 +66,7 @@ type TaskConfig struct {
 	Active    bool           `json:"active,omitempty" yaml:"active,omitempty"`
 }
 
-func (cfg *Config) Parse(r io.Reader) error {
+func Parse(r io.Reader, cfg interface{}) error {
 	buf, err := io.ReadAll(r)
 	if err != nil {
 		return err