From 633175f5bef4088eeb6af86156dba65d1c1183bf Mon Sep 17 00:00:00 2001
From: tolelom <98kimsungmin@naver.com>
Date: Tue, 24 Feb 2026 14:28:33 +0900
Subject: [PATCH] =?UTF-8?q?feat:=20=ED=99=98=EA=B2=BD=EB=B3=80=EC=88=98?=
 =?UTF-8?q?=EB=A1=9C=20=EC=B4=88=EA=B8=B0=20admin=20=EA=B3=84=EC=A0=95=20?=
 =?UTF-8?q?=EC=9E=90=EB=8F=99=20=EC=83=9D=EC=84=B1?=
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서버 시작 시 ADMIN_USERNAME, ADMIN_PASSWORD 환경변수 기반으로
admin 계정이 없을 경우 자동 생성 (이미 있으면 스킵)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 .env.example             |  5 ++++-
 internal/auth/service.go | 15 +++++++++++++++
 main.go                  |  7 +++++++
 pkg/config/config.go     |  4 ++++
 4 files changed, 30 insertions(+), 1 deletion(-)

diff --git a/.env.example b/.env.example
index a92cae5..e0b2300 100644
--- a/.env.example
+++ b/.env.example
@@ -10,4 +10,7 @@ REDIS_ADDR=localhost:6379
 REDIS_PASSWORD=
 
 JWT_SECRET=your-secret-key-here
-JWT_EXPIRY_HOURS=24
\ No newline at end of file
+JWT_EXPIRY_HOURS=24
+
+ADMIN_USERNAME=admin
+ADMIN_PASSWORD=admin1234
\ No newline at end of file
diff --git a/internal/auth/service.go b/internal/auth/service.go
index 02d77fd..dc91290 100644
--- a/internal/auth/service.go
+++ b/internal/auth/service.go
@@ -64,3 +64,18 @@ func (s *Service) Logout(userID uint) {
 	key := fmt.Sprintf("session:%d", userID)
 	s.rdb.Del(context.Background(), key)
 }
+
+func (s *Service) EnsureAdmin(username, password string) error {
+	if _, err := s.repo.FindByUsername(username); err == nil {
+		return nil // 이미 존재하면 스킵
+	}
+	hash, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
+	if err != nil {
+		return err
+	}
+	return s.repo.Create(&User{
+		Username:     username,
+		PasswordHash: string(hash),
+		Role:         RoleAdmin,
+	})
+}
diff --git a/main.go b/main.go
index 7210411..b82efb2 100644
--- a/main.go
+++ b/main.go
@@ -35,6 +35,13 @@ func main() {
 	authSvc := auth.NewService(authRepo, database.RDB)
 	authHandler := auth.NewHandler(authSvc)
 
+	// 초기 admin 계정 생성
+	if err := authSvc.EnsureAdmin(config.C.AdminUsername, config.C.AdminPassword); err != nil {
+		log.Printf("admin 계정 생성 실패: %v", err)
+	} else {
+		log.Printf("admin 계정 확인 완료: %s", config.C.AdminUsername)
+	}
+
 	annRepo := announcement.NewRepository(database.DB)
 	annSvc := announcement.NewService(annRepo)
 	annHandler := announcement.NewHandler(annSvc)
diff --git a/pkg/config/config.go b/pkg/config/config.go
index 7cdb25d..0afb8eb 100644
--- a/pkg/config/config.go
+++ b/pkg/config/config.go
@@ -18,6 +18,8 @@ type Config struct {
 	RedisPassword  string
 	JWTSecret      string
 	JWTExpiryHours int
+	AdminUsername  string
+	AdminPassword  string
 }
 
 var C Config
@@ -37,6 +39,8 @@ func Load() {
 		RedisPassword:  getEnv("REDIS_PASSWORD", ""),
 		JWTSecret:      getEnv("JWT_SECRET", "secret"),
 		JWTExpiryHours: hours,
+		AdminUsername:  getEnv("ADMIN_USERNAME", "admin"),
+		AdminPassword:  getEnv("ADMIN_PASSWORD", "admin1234"),
 	}
 }