Completed the YAML configuration structure and complete implementation (new fields can just be added on demand)

Author: PythonHacker24

cmd/laclm/main.go

@@ -2,16 +2,18 @@ package main
 
 import (
 	"context"
+	"fmt"
+	"net/http"
 	"os"
 	"os/signal"
 	"syscall"
 	"time"
-	"net/http"
 
 	"go.uber.org/zap"
 
-	"github.com/PythonHacker24/linux-acl-management-backend/internal/utils"
 	"github.com/PythonHacker24/linux-acl-management-backend/api/routes"
+	"github.com/PythonHacker24/linux-acl-management-backend/config"
+	"github.com/PythonHacker24/linux-acl-management-backend/internal/utils"
 )
 
 func main() {
@@ -22,9 +24,13 @@ func main() {
 
 func exec() error {
 
-	/*
-		exec() wraps run() protecting it with user interrupts  
+	/* exec() wraps run() protecting it with user interrupts  */
+
+	/* 
+		load config file 
+		if there is an error in loading the config file, then it will exit with code 1
 	*/
+	config.LoadConfig("./config.yaml")
 
 	/* true for production, false for development mode */
 	utils.InitLogger(false)
@@ -56,7 +62,10 @@ func run(ctx context.Context) error {
 	routes.RegisterRoutes(mux)
 
 	server := &http.Server{
-        Addr:    ":8080",
+		Addr:	fmt.Sprintf("%s:%s", 
+			config.BackendConfig.Server.Host,
+			config.BackendConfig.Server.Port,	
+		),
         Handler: mux,
     }
 

config.yaml

@@ -0,0 +1,39 @@
+# config.yaml 
+
+# backend environment configs
+app:
+  name: 
+  version: 
+  environment:
+
+# backend server deployment configs
+server:
+  host:
+  port:
+
+# databases for operations
+database:
+  transaction_logs_redis: 
+    address:
+    password:
+    db: 
+
+# logging configurations
+logging:
+  file:
+  max_size:
+  max_backups:
+  max_age:
+  compress:
+
+# filesystem server that needs management
+filesystem_servers:
+  - path:
+    method:
+    remote:
+      host:
+      port:
+
+# authentication information
+authentication:
+  ldap:

config/config.go

@@ -1,9 +1,6 @@
 package config
 
-/* structure of config struct for yaml config */
-type Config struct {
-
-}
+import "github.com/PythonHacker24/linux-acl-management-backend/internal/models"
 
 /* globally accessible config */
-var BackendConfig Config
+var BackendConfig models.Config 

internal/models/models.go

@@ -1,13 +1,67 @@
 package models
 
-type Config struct {
+/* app parameters */
+type App struct {
+	Name		string	`yaml:"name"`
+	Version		string	`yaml:"version"`
+	Environment	string	`yaml:"environment"`
+}
+
+/* server deployment parameters */
+type Server struct {
+	Host	string	`yaml:"host"`
+	Port	string	`yaml:"port"`
+}
+
+/* database parameters */
+type Database struct {
+	TransactionLogRedis	TransactionLogRedis `yaml:"transaction_log_redis"`	
+}
+
+/* transaction log redis parameters */
+type TransactionLogRedis struct {
+	Address		string	`yaml:"address"`
+	Password	string	`yaml:"password"`
+	DB			string	`yaml:"db"`
+}
+ 
+/* logging parameters */
+type Logging struct {
+	File		string	`yaml:"file"`
+	MaxSize		int 	`yaml:"max_size"`
+	MaxBackups	int 	`yaml:"max_backups"`
+	MaxAge		int 	`yaml:"max_age"`
+	Compress	int		`yaml:"compress"`
+}
+
+/* file system server parameters */
+type FileSystemServers struct {
+	Path		string		`yaml:"path"` 
+	Method		string 		`yaml:"method"`
+	Remote		*Remote		`yaml:"remote"`
+}
 
+/* remote parameters for file system server with laclm daemons installed */
+type Remote struct {
+	Host	string	`yaml:"host"` 
+	Port 	int		`yaml:"port"`
+}
+
+/* complete config for global usage */
+type Config struct {
+	AppInfo				App 				`yaml:"app"`
+	Server 				Server				`yaml:"server"`
+	Database 			Database			`yaml:"database"`
+	Logging 			Logging				`yaml:"logging"`
+	FileSystemServers	[]FileSystemServers	`yaml:"filesystem_servers"`
 }
 
+/* health response */
 type HealthResponse struct {
     Status string `json:"status"`
 }
 
+/* username and password */
 type User struct {
     Username string `json:"username"`
     Password string `json:"password"`

internal/utils/utils.go

@@ -5,7 +5,6 @@ import (
 	"log"
 
 	"github.com/google/uuid"
-	"gopkg.in/yaml.v3"
 	"go.uber.org/zap"
 	"go.uber.org/zap/zapcore"
 	"gopkg.in/natefinch/lumberjack.v2"
@@ -54,22 +53,6 @@ func InitLogger(isProduction bool) {
 	log.Println("Initialized Zap Logger")
 }
 
-/* yaml file loader for config */
-func LoadConfig(filename string) (*models.Config, error) {
-    data, err := os.ReadFile(filename)
-    if err != nil {
-        return nil, err
-    }
-
-    var config models.Config
-    err = yaml.Unmarshal(data, &config)
-    if err != nil {
-        return nil, err
-    }
-
-    return &config, nil
-}
-
 /* generate a new uuid */
 func GenerateTxnID() string {
 	return uuid.New().String()