数据库模块完成-1

cmd/init/database.go

@@ -29,9 +29,6 @@ func NewDatabaseCmd() *cobra.Command {
 			}
 
 			log.Info("初始化数据库...")
-			if force {
-				log.Warn("⚠️  警告：强制重新初始化将清空数据库中的所有数据！")
-			}
 
 			dbInst := db.MustGetDB() // panic if fail (ok for CLI tool)
 			if err := dbInst.InitSchema(force); err != nil {

cmd/root.go

@@ -1,13 +1,11 @@
 package cmd
 
 import (
-	"os"
-	"strings"
 	initcmd "sunhpc/cmd/init"
 	"sunhpc/cmd/soft"
 	"sunhpc/cmd/tmpl"
 	"sunhpc/internal/auth"
-	"sunhpc/internal/config"
+	"sunhpc/internal/db"
 	"sunhpc/internal/log"
 
 	"github.com/spf13/cobra"
@@ -19,43 +17,6 @@ var (
 	noColor bool
 )
 
-func checkDB() error {
-	cfg, err := config.LoadConfig()
-	if err != nil {
-		log.Fatal("加载配置失败: ", err)
-	}
-
-	// 统一转为小写，避免用户输入错误
-	dbType := strings.ToLower(cfg.DB.Type)
-
-	// 打印配置（调试用）
-	log.Debugf("数据库类型: %s", dbType)
-	log.Debugf("数据库名称: %s", cfg.DB.Name)
-	log.Debugf("数据库路径: %s", cfg.DB.Path)
-	log.Debugf("数据库用户: %s", cfg.DB.User)
-	log.Debugf("数据库主机: %s", cfg.DB.Host)
-	log.Debugf("数据库套接字: %s", cfg.DB.Socket)
-	log.Debugf("数据库详细日志: %v", cfg.DB.Verbose)
-
-	// 支持 sqlite，mysql的常见别名
-	isSQLite := dbType == "sqlite" || dbType == "sqlite3"
-	isMySQL := dbType == "mysql"
-
-	// 检查数据库类型,只允许 sqlite 和 mysql
-	if !isSQLite && !isMySQL {
-		log.Fatalf("不支持的数据库类型: %s(仅支持 sqlite、sqlite3、mysql)", dbType)
-	}
-
-	// 检查数据库路径是否存在
-	if isSQLite {
-		if _, err := os.Stat(cfg.DB.Path); os.IsNotExist(err) {
-			log.Warnf("SQLite 数据库路径 %s 不存在", cfg.DB.Path)
-			log.Fatalf("必须先执行 'sunhpc init database' 初始化数据库")
-		}
-	}
-	return nil
-}
-
 var rootCmd = &cobra.Command{
 	Use:   "sunhpc",
 	Short: "SunHPC - HPC集群一体化运维工具",
@@ -68,15 +29,9 @@ var rootCmd = &cobra.Command{
 
 		log.Debugf("当前命令 Annotations: %+v", cmd.Annotations)
 
-		// 检查当前命令是否标记为跳过 DB 检查
-		if cmd.Annotations["skip-db-check"] == "true" {
-			log.Debugf("当前命令 %s 标记为跳过 DB 检查", cmd.Name())
-			return
-		} else {
-			// 检查数据库
-			if err := checkDB(); err != nil {
-				log.Fatalf("数据库检查失败: %v", err)
-			}
+		_, err := db.CheckDB()
+		if err != nil {
+			log.Warnf("数据库检查失败: %v", err)
 		}
 
 		// 需要 root 权限

internal/db/db.go

@@ -1,10 +1,12 @@
 package db
 
 import (
+	"bufio"
 	"database/sql"
 	"fmt"
 	"os"
 	"path/filepath"
+	"strings"
 	"sync"
 
 	_ "github.com/go-sql-driver/mysql"
@@ -17,31 +19,127 @@ import (
 // DB wraps the sql.DB connection pool.
 type DB struct {
 	engine *sql.DB
+	config *config.DBConfig // 保存配置
 }
 
+/*
 // Engine returns the underlying *sql.DB.
 func (d *DB) Engine() *sql.DB {
 	return d.engine
 }
+*/
+
+func ConfirmWithRetry(prompt string, maxAttempts int) bool {
+	reader := bufio.NewReader(os.Stdin)
+
+	for attempt := 1; attempt <= maxAttempts; attempt++ {
+		log.Infof("%s [y/n]", prompt)
+
+		response, err := reader.ReadString('\n')
+		if err != nil {
+			continue
+		}
+
+		response = strings.ToLower(strings.TrimSpace(response))
+
+		switch response {
+		case "y", "yes":
+			return true
+		case "n", "no", "":
+			return false
+		default:
+			if attempt < maxAttempts {
+				log.Warnf(
+					"⚠️ 无效输入、请输入 'y' 或 'n'(剩余尝试次数: %d)",
+					maxAttempts-attempt)
+			}
+		}
+	}
+
+	log.Warn("⚠️  警告：尝试次数过多、操作已取消")
+	return false
+}
 
 // InitSchema initializes the database schema.
 // If force is true, drops existing tables before recreating them.
 func (d *DB) InitSchema(force bool) error {
-	db := d.engine
+	fullPath := filepath.Join(d.config.Path, d.config.Name)
 
-	if force {
-		if err := dropTables(db); err != nil {
-			return fmt.Errorf("failed to drop tables: %w", err)
+	// 检查文件是否存在
+	_, err := os.Stat(fullPath)
+	fileExists := err == nil
+
+	// 处理不同的场景
+	switch {
+	case !fileExists:
+		// 场景1：文件不存在，连接并创建(allowCreate = true).
+		log.Infof("数据库文件不存在，将创建: %s", fullPath)
+		if err := d.Connect(true); err != nil {
+			return err
 		}
+		return createTables(d.engine)
+
+	case fileExists && !force:
+		// 场景2：文件存在、无 force 参数、提示友好退出.
+		log.Warnf("数据库文件已存在: %s", fullPath)
+		log.Warn("如果需要强制重新初始化，请添加 --force 参数")
+		log.Warn("数据库已存在、退出初始化操作.")
+		os.Exit(1)
+
+	case fileExists && force:
+		// 场景3：文件存在、force 参数 -> 需要用户确认并重建.
+		log.Warn("警告：强制重新初始化将清空数据库中的所有数据！")
+		if !ConfirmWithRetry("是否继续？", 3) {
+			return fmt.Errorf("用户取消操作")
 		}
 
+		// 连接现有数据库(allowCreate = true, 因为文件已经存在)
+		if err := d.Connect(true); err != nil {
+			return err
+		}
+
+		// 清空现有数据.
+		if err := dropTables(d.engine); err != nil {
+			return err
+		}
+
+		// 清空表
+		if err := dropTriggers(d.engine); err != nil {
+			return err
+		}
+
+		log.Info("已清空现有数据库触发器")
+		return createTables(d.engine)
+	}
+
+	log.Info("数据库创建成功")
+	return nil
+}
+
+// 辅助函数：检查文件是否存在
+func fileExists(path string) bool {
+	_, err := os.Stat(path)
+	if err == nil {
+		return true
+	}
+	if os.IsNotExist(err) {
+		return false
+	}
+	// 其他问题（如权限问题）也视为文件不存在，但应该记录日志
+	log.Debugf("检查数据库文件状态失败: %v", err)
+	return false
+}
+
+// 辅助函数: 创建数据库表
+func createTables(db *sql.DB) error {
 	// ✅ 调用 schema.go 中的函数
 	for _, ddl := range CreateTableStatements() {
+		log.Debugf("执行: %s", ddl)
 		if _, err := db.Exec(ddl); err != nil {
-			return fmt.Errorf("failed to create table: %w", err)
+			return fmt.Errorf("数据表创建失败: %w", err)
 		}
 	}
-
+	log.Info("数据库表创建成功")
 	return nil
 }
 
@@ -55,6 +153,16 @@ func dropTables(db *sql.DB) error {
 	return nil
 }
 
+func dropTriggers(db *sql.DB) error {
+	// ✅ 调用 schema.go 中的函数
+	for _, trigger := range DropTriggerStatements() {
+		if _, err := db.Exec(fmt.Sprintf("DROP TRIGGER IF EXISTS `%s`", trigger)); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
 // --- Singleton DB Instance ---
 var (
 	globalDB *DB
@@ -70,52 +178,77 @@ func GetDB() (*DB, error) {
 			return
 		}
 
-		if _, err := os.Stat(cfg.DB.Path); err != nil {
-			// 创建数据库目录
-			if err := os.MkdirAll(cfg.DB.Path, 0755); err != nil {
-				log.Fatalf("创建数据库目录失败: %v", err)
+		globalDB = &DB{
+			config: &cfg.DB,
 		}
-			log.Infof("数据库目录创建成功: %s", cfg.DB.Path)
+	})
+	return globalDB, initErr
+}
+
+func (d *DB) Connect(allowCreate bool) error {
+	// 如果已经连接，直接返回
+	if d.engine != nil {
+		return nil
 	}
 
-		var dsn string
-		var driver string
-
-		switch cfg.DB.Type {
+	switch d.config.Type {
 	case "sqlite":
-			driver = "sqlite3"
-			fullPath := filepath.Join(cfg.DB.Path, cfg.DB.Name)
-			dsn = fmt.Sprintf("%s?_foreign_keys=on&_journal_mode=WAL&_timeout=5000", fullPath)
-		case "mysql":
-			driver = "mysql"
-			if cfg.DB.Socket != "" {
-				dsn = fmt.Sprintf("%s:%s@unix(%s)/%s?parseTime=true&loc=Local",
-					cfg.DB.User, cfg.DB.Password, cfg.DB.Socket, cfg.DB.Name)
-			} else {
-				dsn = fmt.Sprintf("%s:%s@tcp(%s)/%s?parseTime=true&loc=Local",
-					cfg.DB.User, cfg.DB.Password, cfg.DB.Host, cfg.DB.Name)
-			}
-		default:
-			initErr = fmt.Errorf("unsupported database type: %s", cfg.DB.Type)
-			return
+		fullPath := filepath.Join(d.config.Path, d.config.Name)
+
+		// 检查文件是否存在
+		_, err := os.Stat(fullPath)
+		fileExists := err == nil
+
+		// 如果文件不存在且不允许创建，返回错误
+		if !fileExists && !allowCreate {
+			return fmt.Errorf("数据库文件不存在: %s, 请先初始化.", fullPath)
 		}
 
-		engine, err := sql.Open(driver, dsn)
+		// 确保目录存在
+		if err := os.MkdirAll(d.config.Path, 0755); err != nil {
+			return fmt.Errorf("创建数据库目录失败: %w", err)
+		}
+
+		// 连接参数
+		dsn := fmt.Sprintf("%s?_foreign_keys=on&_journal_mode=WAL&_timeout=5000",
+			fullPath)
+
+		engine, err := sql.Open("sqlite3", dsn)
 		if err != nil {
-			initErr = fmt.Errorf("failed to open database: %w", err)
-			return
+			return fmt.Errorf("数据库打开失败: %w", err)
 		}
 
 		if err := engine.Ping(); err != nil {
 			engine.Close()
-			initErr = fmt.Errorf("failed to ping database: %w", err)
-			return
+			return fmt.Errorf("数据库连接失败: %w", err)
 		}
 
-		globalDB = &DB{engine: engine}
-	})
+		d.engine = engine
+	case "mysql":
+		// TODO: 实现 MySQL 连接逻辑
+		return fmt.Errorf("mysql 数据库连接未实现")
+	}
 
-	return globalDB, initErr
+	return nil
+}
+
+// Close 关闭数据库连接
+func (d *DB) Close() error {
+	if d.engine != nil {
+		return d.engine.Close()
+	}
+	return nil
+}
+
+// GetEngine 获取数据库引擎(自动连接)
+func (d *DB) GetEngine() (*sql.DB, error) {
+	// 如果还没有连接，自动连接（但不创建新文件)
+	if d.engine == nil {
+		if err := d.Connect(false); err != nil {
+			return nil, err
+		}
+	}
+	return d.engine, nil
 }
 
 // MustGetDB is a helper that panics on error (use in main/init only).
@@ -126,3 +259,48 @@ func MustGetDB() *DB {
 	}
 	return db
 }
+
+func GetDBConfig() (*config.DBConfig, error) {
+	cfg, err := config.LoadConfig()
+	if err != nil {
+		return nil, fmt.Errorf("数据库配置文件加载失败: %w", err)
+	}
+	return &cfg.DB, nil
+}
+
+func CheckDB() (*config.Config, error) {
+	cfg, err := config.LoadConfig()
+	if err != nil {
+		log.Warnf("加载配置失败: %v", err)
+	}
+
+	// 统一转为小写，避免用户输入错误
+	dbType := strings.ToLower(cfg.DB.Type)
+
+	// 打印配置（调试用）
+	log.Debugf("数据库类型: %s", dbType)
+	log.Debugf("数据库名称: %s", cfg.DB.Name)
+	log.Debugf("数据库路径: %s", cfg.DB.Path)
+	log.Debugf("数据库用户: %s", cfg.DB.User)
+	log.Debugf("数据库主机: %s", cfg.DB.Host)
+	log.Debugf("数据库套接字: %s", cfg.DB.Socket)
+	log.Debugf("数据库详细日志: %v", cfg.DB.Verbose)
+
+	// 支持 sqlite，mysql的常见别名
+	isSQLite := dbType == "sqlite" || dbType == "sqlite3"
+	isMySQL := dbType == "mysql"
+
+	// 检查数据库类型,只允许 sqlite 和 mysql
+	if !isSQLite && !isMySQL {
+		log.Fatalf("不支持的数据库类型: %s(仅支持 sqlite、sqlite3、mysql)", dbType)
+	}
+
+	// 检查数据库路径是否存在
+	if isSQLite {
+		if _, err := os.Stat(cfg.DB.Path); os.IsNotExist(err) {
+			log.Warnf("SQLite 数据库路径 %s 不存在", cfg.DB.Path)
+			log.Warn("必须先执行 'sunhpc init database' 初始化数据库")
+		}
+	}
+	return cfg, nil
+}

internal/db/schema.go

@@ -9,31 +9,56 @@ func CurrentSchemaVersion() int {
 // CreateTableStatements returns a list of CREATE TABLE statements.
 func CreateTableStatements() []string {
 	return []string{
-		createNodesTable(),
+		createAliasesTable(),
 		createAttributesTable(),
+		createBootactionTable(),
+		createDistributionsTable(),
+		createFirewallsTable(),
 		createNetworksTable(),
-		createSubnetsTable(),
+		createPartitionsTable(),
+		createPublicKeysTable(),
 		createSoftwareTable(),
+		createNodesTable(),
+		createSubnetsTable(),
+		createTrg_nodes_before_delete(),
 	}
 }
 
 // DropTableOrder returns table names in reverse dependency order for safe DROP.
 func DropTableOrder() []string {
-	return []string{"software", "attributes", "nodes", "subnets", "networks"}
+	return []string{
+		"aliases",
+		"attributes",
+		"bootactions",
+		"distributions",
+		"firewalls",
+		"networks",
+		"partitions",
+		"publickeys",
+		"software",
+		"nodes",
+		"subnets",
+	}
+}
+
+func DropTriggerStatements() []string {
+	return []string{
+		"trg_nodes_before_delete",
+	}
 }
 
 // --- Private DDL Functions ---
-
-func createNodesTable() string {
+func createAliasesTable() string {
 	return `
-CREATE TABLE IF NOT EXISTS nodes (
+CREATE TABLE IF NOT EXISTS aliases (
     id INTEGER PRIMARY KEY AUTOINCREMENT,
-    hostname TEXT NOT NULL UNIQUE,
-    ip TEXT,
-    status TEXT DEFAULT 'active',
-    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
-    updated_at DATETIME DEFAULT CURRENT_TIMESTAMP
-);`
+    node_id INTEGER NOT NULL,
+    alias TEXT NOT NULL,
+    CONSTRAINT fk_aliases_node FOREIGN KEY(node_id) REFERENCES nodes(id),
+    UNIQUE(node_id, alias)
+);
+create index if not exists idx_aliases_node on aliases (node_id);
+`
 }
 
 func createAttributesTable() string {
@@ -41,33 +66,149 @@ func createAttributesTable() string {
 CREATE TABLE IF NOT EXISTS attributes (
     id INTEGER PRIMARY KEY AUTOINCREMENT,
     node_id INTEGER NOT NULL,
-    key TEXT NOT NULL,
-    value TEXT NOT NULL,
-    FOREIGN KEY(node_id) REFERENCES nodes(id) ON DELETE CASCADE,
-    UNIQUE(node_id, key)
-);`
+    attr TEXT NOT NULL,
+    value TEXT,
+    shadow TEXT,
+    CONSTRAINT fk_attributes_node FOREIGN KEY(node_id) REFERENCES nodes(id)
+);
+create index if not exists idx_attributes_node on attributes (node_id);
+`
+}
+
+func createBootactionTable() string {
+	return `
+CREATE TABLE IF NOT EXISTS bootactions (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    node_id INTEGER NOT NULL,
+    action TEXT,
+    kernel TEXT,
+    initrd TEXT,
+    cmdline TEXT,
+    CONSTRAINT fk_bootactions_node FOREIGN KEY(node_id) REFERENCES nodes(id),
+    UNIQUE(node_id)
+);
+create index if not exists idx_bootactions_node on bootactions (node_id);
+`
+}
+
+func createDistributionsTable() string {
+	return `
+CREATE TABLE IF NOT EXISTS distributions (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    node_id INTEGER,
+    name TEXT NOT NULL,
+    version TEXT,
+    lang TEXT,
+    os_release TEXT,
+    constraint distributions_nodes_fk FOREIGN KEY(node_id) REFERENCES nodes(id)
+);
+create index if not exists idx_distributions_node on distributions (node_id);
+`
+}
+
+func createFirewallsTable() string {
+	return `
+CREATE TABLE IF NOT EXISTS firewalls (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    node_id INTEGER,
+    rulename TEXT NOT NULL,
+    rulesrc TEXT NOT NULL,
+    insubnet INTEGER,
+    outsubnet INTEGER,
+    service TEXT,
+    protocol TEXT,
+    action TEXT,
+    chain TEXT,
+    flags TEXT,
+    comment TEXT,
+    constraint firewalls_nodes_fk FOREIGN KEY(node_id) REFERENCES nodes(id)
+);
+create index if not exists idx_firewalls_node on firewalls (node_id);
+`
 }
 
 func createNetworksTable() string {
 	return `
 CREATE TABLE IF NOT EXISTS networks (
     id INTEGER PRIMARY KEY AUTOINCREMENT,
-    name TEXT NOT NULL UNIQUE,
+    node_id INTEGER,
+    subnet_id INTEGER,
+    mac TEXT,
+    ip TEXT,
+    name TEXT,
+    device TEXT,
+    module TEXT,
+    vlanid INTEGER,
+    options TEXT,
+    channel TEXT,
+    disable_kvm INTEGER NOT NULL DEFAULT 0 CHECK (disable_kvm IN (0, 1)),
+    constraint networks_nodes_fk FOREIGN KEY(node_id) REFERENCES nodes(id),
+    constraint networks_subnets_fk FOREIGN KEY(subnet_id) REFERENCES subnets(id)
+);
+create index if not exists idx_networks_node on networks (node_id);
+`
+}
+
+func createNodesTable() string {
+	return `
+CREATE TABLE IF NOT EXISTS nodes (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    name TEXT NOT NULL,
+    cpus INTEGER NOT NULL,
+    rack INTEGER NOT NULL,
+    rank INTEGER NOT NULL,
+    arch TEXT,
+    os TEXT,
+    runaction TEXT,
+    installaction TEXT
+);
+create index if not exists idx_nodes_name on nodes (name);
+`
+}
+
+func createPartitionsTable() string {
+	return `
+CREATE TABLE IF NOT EXISTS partitions (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    node_id INTEGER,
+    device TEXT NOT NULL,
+    formatflags TEXT NOT NULL,
+    fstype TEXT NOT NULL,
+    mountpoint TEXT NOT NULL,
+    partitionflags TEXT NOT NULL,
+    partitionid TEXT NOT NULL,
+    partitionsize TEXT NOT NULL,
+    sectorstart TEXT NOT NULL,
+    constraint partitions_nodes_fk FOREIGN KEY(node_id) REFERENCES nodes(id)
+);
+create index if not exists idx_partitions_node on partitions (node_id);
+`
+}
+
+func createPublicKeysTable() string {
+	return `
+CREATE TABLE IF NOT EXISTS publickeys (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    node_id INTEGER,
+    publickey TEXT NOT NULL,
     description TEXT,
-    created_at DATETIME DEFAULT CURRENT_TIMESTAMP
-);`
+    constraint publickeys_nodes_fk FOREIGN KEY(node_id) REFERENCES nodes(id)
+);
+create index if not exists idx_publickeys_node on publickeys (node_id);
+`
 }
 
 func createSubnetsTable() string {
 	return `
 CREATE TABLE IF NOT EXISTS subnets (
     id INTEGER PRIMARY KEY AUTOINCREMENT,
-    network_id INTEGER NOT NULL,
-    cidr TEXT NOT NULL,
-    gateway TEXT,
-    vlan INTEGER,
-    FOREIGN KEY(network_id) REFERENCES networks(id) ON DELETE CASCADE,
-    UNIQUE(network_id, cidr)
+    name TEXT NOT NULL,
+    dnszone TEXT NOT NULL,
+    subnet TEXT NOT NULL,
+    netmask TEXT NOT NULL,
+    mtu INTEGER NOT NULL DEFAULT 1500,
+    servedns INTEGER NOT NULL DEFAULT 0 CHECK (servedns IN (0, 1)),
+    UNIQUE(name, dnszone)
 );`
 }
 
@@ -76,9 +217,78 @@ func createSoftwareTable() string {
 CREATE TABLE IF NOT EXISTS software (
     id INTEGER PRIMARY KEY AUTOINCREMENT,
     name TEXT NOT NULL,
-    version TEXT NOT NULL,
-    installed_on INTEGER,
-    FOREIGN KEY(installed_on) REFERENCES nodes(id) ON DELETE SET NULL,
-    UNIQUE(name, version, installed_on)
-);`
+    pathversion TEXT,
+    fullversion TEXT,
+    description TEXT,
+    website TEXT,
+    license TEXT,
+    install_method TEXT NOT NULL CHECK (install_method IN (
+        'source', 
+        'binary',
+        'rpm',
+        'docker',
+        'apptainer',
+        'conda',
+        'mamba',
+        'spack',
+        'tarball',
+        'zipball',
+        'pip',
+        'npm',
+        'custom'
+        )),
+    -- 源码编译相关参数
+    source_url TEXT, -- 源码下载地址
+    source_checksum TEXT, -- 源码校验和
+    source_checksum_type TEXT NOT NULL CHECK (source_checksum_type IN (
+        'md5',
+        'sha1',
+        'sha256',
+        'sha512'
+        )),
+    build_dependencies TEXT,    -- 编译依赖(JSON格式)
+    configure_params TEXT,      -- 配置参数(JSON格式)
+    make_params TEXT,           -- make参数(JSON格式)
+    make_install_params TEXT,   -- make install参数(JSON格式)
+
+    -- 安装路径参数
+    install_path TEXT NOT NULL, -- 安装路径
+    env_vars TEXT,     -- 环境变量(JSON格式)
+
+    -- 状态信息
+    is_installed INTEGER NOT NULL DEFAULT 0 CHECK (is_installed IN (0, 1)), -- 是否安装
+    install_date TEXT, -- 安装日期
+    updated_date TEXT, -- 更新日期
+    install_user TEXT, -- 安装用户
+    notes TEXT,        -- 安装备注
+
+    -- 元数据
+    created_at DATETIME DEFAULT CURRENT_TIMESTAMP, -- 创建时间
+    updated_at DATETIME DEFAULT CURRENT_TIMESTAMP, -- 更新时间
+
+    UNIQUE(name)
+);
+create index if not exists idx_software_name on software (name);
+create index if not exists idx_software_install_method on software (install_method);
+create index if not exists idx_software_is_installed on software (is_installed);
+`
+}
+
+func createTrg_nodes_before_delete() string {
+	return `
+CREATE TRIGGER IF NOT EXISTS trg_nodes_before_delete
+    BEFORE DELETE ON nodes
+    FOR EACH ROW
+    BEGIN
+        -- 先删除子表的关联记录
+        DELETE FROM aliases WHERE node_id = OLD.id;
+        DELETE FROM attributes WHERE node_id = OLD.id;
+        DELETE FROM bootactions WHERE node_id = OLD.id;
+        DELETE FROM distributions WHERE node_id = OLD.id;
+        DELETE FROM firewalls WHERE node_id = OLD.id;
+        DELETE FROM networks WHERE node_id = OLD.id;
+        DELETE FROM partitions WHERE node_id = OLD.id;
+        DELETE FROM publickeys WHERE node_id = OLD.id;
+    END;
+`
 }

readme.md

@@ -0,0 +1,146 @@
+## 其他包使用数据库模块
+```go
+package repository
+
+import (
+    "your-project/database"
+    "your-project/log"
+)
+
+type NodeRepository struct {
+    db *database.DB
+}
+
+// NewNodeRepository 创建仓库（延迟连接）
+func NewNodeRepository() (*NodeRepository, error) {
+    db, err := database.GetDB()
+    if err != nil {
+        return nil, err
+    }
+    
+    return &NodeRepository{db: db}, nil
+}
+
+// GetNode 获取节点（自动连接）
+func (r *NodeRepository) GetNode(id int) (*Node, error) {
+    // 获取数据库引擎（会自动连接）
+    engine, err := r.db.GetEngine()
+    if err != nil {
+        return nil, fmt.Errorf("数据库连接失败: %w", err)
+    }
+    
+    var node Node
+    err = engine.QueryRow("SELECT id, name FROM nodes WHERE id = ?", id).
+        Scan(&node.ID, &node.Name)
+    if err != nil {
+        return nil, err
+    }
+    
+    return &node, nil
+}
+
+// CreateNode 创建节点
+func (r *NodeRepository) CreateNode(name string) error {
+    engine, err := r.db.GetEngine()
+    if err != nil {
+        return err
+    }
+    
+    _, err = engine.Exec("INSERT INTO nodes (name) VALUES (?)", name)
+    return err
+}
+```
+
+## 服务层使用
+```go
+package service
+
+import (
+    "your-project/repository"
+    "your-project/log"
+)
+
+type NodeService struct {
+    repo *repository.NodeRepository
+}
+
+func NewNodeService() (*NodeService, error) {
+    repo, err := repository.NewNodeRepository()
+    if err != nil {
+        return nil, err
+    }
+    
+    return &NodeService{repo: repo}, nil
+}
+
+func (s *NodeService) ListNode() error {
+    // 自动连接数据库
+    nodes, err := s.repo.GetAllNodes()
+    if err != nil {
+        return err
+    }
+    
+    for _, node := range nodes {
+        log.Infof("Node: %v", node)
+    }
+    return nil
+}
+```
+## 命令处理 
+```go
+package main
+
+import (
+    "your-project/cmd"
+    "your-project/database"
+    "your-project/log"
+    "github.com/spf13/cobra"
+)
+
+func main() {
+    var rootCmd = &cobra.Command{Use: "sunhpc"}
+    
+    // init database 命令
+    var initCmd = &cobra.Command{
+        Use:   "init database",
+        Short: "初始化数据库",
+        Run: func(cmd *cobra.Command, args []string) {
+            force, _ := cmd.Flags().GetBool("force")
+            
+            // 获取DB实例（只加载配置）
+            db, err := database.GetDB()
+            if err != nil {
+                log.Fatal(err)
+            }
+            
+            // 初始化schema（会根据force参数决定行为）
+            if err := db.InitSchema(force); err != nil {
+                log.Fatal(err)
+            }
+            
+            log.Info("数据库初始化成功")
+        },
+    }
+    initCmd.Flags().BoolP("force", "f", false, "强制重新初始化")
+    rootCmd.AddCommand(initCmd)
+    
+    // node list 命令 - 自动连接已存在的数据库
+    var nodeCmd = &cobra.Command{
+        Use:   "node list",
+        Short: "列出所有节点",
+        Run: func(cmd *cobra.Command, args []string) {
+            service, err := service.NewNodeService()
+            if err != nil {
+                log.Fatal(err) // 如果数据库不存在，这里会报错
+            }
+            
+            if err := service.ListNode(); err != nil {
+                log.Fatal(err)
+            }
+        },
+    }
+    rootCmd.AddCommand(nodeCmd)
+    
+    rootCmd.Execute()
+}
+```

sunhpc.yaml

@@ -1,4 +0,0 @@
-db:
-  type: sqlite
-  name: sunhpc.db
-  path: /tmp/sunhpc