initial import for nested configs

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

cmd/servicechecker/main.go

@@ -3,8 +3,10 @@ package main
 import (
 	"context"
 	"fmt"
+	"io/fs"
 	"os"
 	"os/signal"
+	"path/filepath"
 	"time"
 
 	openapi_v3 "github.com/google/gnostic/openapiv3"
@@ -73,6 +75,27 @@ func main() {
 		l.Fatal(ctx, "failed to open config", err)
 	}
 
+	if cfg.App.ChecksDir != "" {
+		if !filepath.IsAbs(cfg.App.ChecksDir) {
+			dir, _ := os.Getwd()
+			cfg.App.ChecksDir = filepath.Clean(filepath.Join(dir, cfg.App.ChecksDir))
+		}
+
+		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() {
+				return nil
+			}
+			return nil
+		})
+		if err != nil {
+			l.Fatal(ctx, fmt.Sprintf("error loading config: %s", cfg.App.ChecksDir), err)
+		}
+	}
+
 	if !cfg.App.MultiUser {
 		m.Init(
 			meter.WriteFDMetrics(true),
@@ -153,7 +176,7 @@ func main() {
 	}
 	clients["http"] = hcli
 
-	for _, check := range cfg.Checks {
+	for _, check := range cfg.App.Checks {
 		l.Info(ctx, fmt.Sprintf("check %#+v", check))
 		if !check.Active {
 			continue

pkg/config/config.go

@@ -8,6 +8,8 @@ import (
 )
 
 type AppConfig struct {
+	ChecksDir string         `json:"checks_dir,omitempty" yaml:"checks_dir,omitempty"`
+	Checks    []*CheckConfig `json:"checks,omitempty" yaml:"checks,omitempty"`
 	MultiUser bool           `json:"multi_user,omitempty" yaml:"multi_user,omitempty"`
 }
 
@@ -19,7 +21,6 @@ type MeterConfig struct {
 type Config struct {
 	App   *AppConfig   `json:"app,omitempty" yaml:"app,omitempty"`
 	Meter *MeterConfig `json:"meter,omitempty" yaml:"meter,omitempty"`
-	Checks []*CheckConfig `json:"checks,omitempty" yaml:"checks,omitempty"`
 }
 
 type CheckConfig struct {

pkg/grpcconn/protoset.go

@@ -3,8 +3,8 @@
 package grpcconn
 
 import (
-	"github.com/emicklei/proto"
 	"github.com/jhump/protoreflect/desc"
+	"google.golang.org/protobuf/proto"
 )
 
 var protoSets = map[string]*desc.FileDescriptor