init: EZOps AIOps 智能运维平台

- 前端: React 18 + TypeScript + Vite + Tailwind CSS + shadcn/ui
- 后端: Go + Gin + GORM + JWT (golang-jwt/jwt/v5)
- 功能: 服务器管理、K8s集群、监控告警、CI/CD、自动化运维、审批流程、审计日志
- 文档: 设计文档(ROADMAP/PDD/架构/模块)

backend/pkg/database/database.go

@@ -0,0 +1,88 @@
+package database
+
+import (
+	"fmt"
+	"time"
+
+	"ezops/internal/config"
+	"ezops/internal/models"
+
+	"gorm.io/driver/mysql"
+	"gorm.io/driver/postgres"
+	"gorm.io/gorm"
+	"gorm.io/gorm/logger"
+)
+
+// New 创建数据库连接
+func New(cfg config.DatabaseConfig) (*gorm.DB, error) {
+	var dialector gorm.Dialector
+
+	switch cfg.Driver {
+	case "mysql":
+		dsn := fmt.Sprintf("%s:%s@tcp(%s:%d)/%s?charset=%s&parseTime=True&loc=Local",
+			cfg.User, cfg.Password, cfg.Host, cfg.Port, cfg.DBName, cfg.Charset)
+		dialector = mysql.Open(dsn)
+	case "postgres":
+		dsn := fmt.Sprintf("host=%s port=%d user=%s password=%s dbname=%s sslmode=disable",
+			cfg.Host, cfg.Port, cfg.User, cfg.Password, cfg.DBName)
+		dialector = postgres.Open(dsn)
+	default:
+		return nil, fmt.Errorf("unsupported database driver: %s", cfg.Driver)
+	}
+
+	db, err := gorm.Open(dialector, &gorm.Config{
+		Logger: logger.Default.LogMode(logger.Silent),
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	// 设置连接池
+	sqlDB, err := db.DB()
+	if err != nil {
+		return nil, err
+	}
+
+	sqlDB.SetMaxOpenConns(cfg.MaxConn)
+	sqlDB.SetMaxIdleConns(cfg.MaxIdle)
+	sqlDB.SetConnMaxLifetime(time.Hour)
+
+	return db, nil
+}
+
+// AutoMigrate 自动迁移数据库表
+func AutoMigrate(db *gorm.DB) error {
+	return db.AutoMigrate(
+		&models.User{},
+		&models.Role{},
+		&models.Permission{},
+		&models.Server{},
+		&models.Cloud{},
+		&models.CloudAccount{},
+		&models.Region{},
+		&models.Domain{},
+		&models.K8sCluster{},
+		&models.K8sNode{},
+		&models.K8sPod{},
+		&models.K8sDeployment{},
+		&models.K8sService{},
+		&models.K8sIngress{},
+		&models.AlertRule{},
+		&models.AlertEvent{},
+		&models.NotifyChannel{},
+		&models.MetricData{},
+		&models.Pipeline{},
+		&models.PipelineRun{},
+		&models.AppRelease{},
+		&models.CronJob{},
+		&models.Script{},
+		&models.TaskExecution{},
+		&models.Playbook{},
+		&models.ApprovalTemplate{},
+		&models.ApprovalProcess{},
+		&models.ApprovalStep{},
+		&models.NavigationGroup{},
+		&models.NavigationLink{},
+		&models.AuditLog{},
+	)
+}