CMDB之數據庫表結構的設計

CMDB之數據庫表設計

1.開發CMDB的背景
不少公司還在用Excel維護資產信息，當服務器數量變多時，難以保證excel表格的正確性，並且不一樣部門之間交換信息不方便。實現自動採集資產，自動彙報，並自動保存變動記錄。
2.CMDB架構
- 資產採集（資產採集）
- API（接受數據保存入庫，對外提供數據接口）
- 後臺管理

3.資產採集方式
三種方案
- agent
- paramiko
- saltstack

4.服務器的惟一標識
a.不須要採集虛擬機
- 採用主板的SN號做爲惟一標識。
b.須要採集虛擬機
- 對服務器進行標準化，惟一標識選用hostname

5.CMDB流程
- 裝機同時，主機名在CMDB中設置
- 第一次採集，將主機名寫入文件，發送到API
- 第N次採集，主機名從直接從文件名中獲取。

6.表結構圖示

7.django-models結構

from django.db import models


class UserProfile(models.Model):
    """
    用戶信息
    """
    name = models.CharField(u'姓名', max_length=32)
    email = models.EmailField(u'郵箱')
    phone = models.CharField(u'座機', max_length=32)
    mobile = models.CharField(u'手機', max_length=32)

    class Meta:
        verbose_name_plural = "用戶表"

    def __str__(self):
        return self.name


class AdminInfo(models.Model):
    """
    用戶登錄相關信息
    """
    user_info = models.OneToOneField("UserProfile")
    username = models.CharField(u'用戶名', max_length=64)
    password = models.CharField(u'密碼', max_length=64)

    class Meta:
        verbose_name_plural = "管理員表"

    def __str__(self):
        return self.user_info.name


class UserGroup(models.Model):
    """
    用戶組
    """
    name = models.CharField(max_length=32, unique=True)
    users = models.ManyToManyField('UserProfile')

    class Meta:
        verbose_name_plural = "用戶組表"

    def __str__(self):
        return self.name


class BusinessUnit(models.Model):
    """
    業務線,業務聯繫人和系統管理員
    """
    name = models.CharField('業務線', max_length=64, unique=True)
    contact = models.ForeignKey('UserGroup', verbose_name='業務聯繫人', related_name='c')
    manager = models.ForeignKey('UserGroup', verbose_name='系統管理員', related_name='m')

    class Meta:
        verbose_name_plural = "業務線表"

    def __str__(self):
        return self.name


class IDC(models.Model):
    """
    機房信息
    """
    name = models.CharField('機房', max_length=32)
    floor = models.IntegerField('樓層', default=1)

    class Meta:
        verbose_name_plural = "機房表"

    def __str__(self):
        return self.name


class Tag(models.Model):
    """
    資產標籤
    """
    name = models.CharField('標籤', max_length=32, unique=True)

    class Meta:
        verbose_name_plural = "標籤表"

    def __str__(self):
        return self.name


class Asset(models.Model):
    """
    資產信息表，全部資產公共信息（交換機，服務器，防火牆等）
    """
    device_type_choices = (
        (1, '服務器'),
        (2, '交換機'),
        (3, '防火牆'),
    )
    device_status_choices = (
        (1, '上架'),
        (2, '在線'),
        (3, '離線'),
        (4, '下架'),
    )

    device_type_id = models.IntegerField(choices=device_type_choices, default=1)
    device_status_id = models.IntegerField(choices=device_status_choices, default=1)

    cabinet_num = models.CharField('機櫃號', max_length=30, null=True, blank=True)
    cabinet_order = models.CharField('機櫃中序號', max_length=30, null=True, blank=True)

    idc = models.ForeignKey('IDC', verbose_name='IDC機房', null=True, blank=True)
    business_unit = models.ForeignKey('BusinessUnit', verbose_name='屬於的業務線', null=True, blank=True)

    tag = models.ManyToManyField('Tag')

    latest_date = models.DateField(null=True)
    create_at = models.DateTimeField(auto_now_add=True)

    class Meta:
        verbose_name_plural = "資產表"

    def __str__(self):
        return "%s-%s-%s" % (self.idc.name, self.cabinet_num, self.cabinet_order)


class Server(models.Model):
    """
    服務器信息
    """
    asset = models.OneToOneField('Asset')

    hostname = models.CharField(max_length=128, unique=True)
    sn = models.CharField('SN號', max_length=64, db_index=True)
    manufacturer = models.CharField(verbose_name='製造商', max_length=64, null=True, blank=True)
    model = models.CharField('型號', max_length=64, null=True, blank=True)

    manage_ip = models.GenericIPAddressField('管理IP', null=True, blank=True)

    os_platform = models.CharField('系統', max_length=16, null=True, blank=True)
    os_version = models.CharField('系統版本', max_length=16, null=True, blank=True)

    cpu_count = models.IntegerField('CPU個數', null=True, blank=True)
    cpu_physical_count = models.IntegerField('CPU物理個數', null=True, blank=True)
    cpu_model = models.CharField('CPU型號', max_length=128, null=True, blank=True)

    create_at = models.DateTimeField(auto_now_add=True, blank=True)

    class Meta:
        verbose_name_plural = "服務器表"

    def __str__(self):
        return self.hostname


class NetworkDevice(models.Model):
    asset = models.OneToOneField('Asset')
    management_ip = models.CharField('管理IP', max_length=64, blank=True, null=True)
    vlan_ip = models.CharField('VlanIP', max_length=64, blank=True, null=True)
    intranet_ip = models.CharField('內網IP', max_length=128, blank=True, null=True)
    sn = models.CharField('SN號', max_length=64, unique=True)
    manufacture = models.CharField(verbose_name=u'製造商', max_length=128, null=True, blank=True)
    model = models.CharField('型號', max_length=128, null=True, blank=True)
    port_num = models.SmallIntegerField('端口個數', null=True, blank=True)
    device_detail = models.CharField('設置詳細配置', max_length=255, null=True, blank=True)

    class Meta:
        verbose_name_plural = "網絡設備"


class Disk(models.Model):
    """
    硬盤信息
    """
    slot = models.CharField('插槽位', max_length=8)
    model = models.CharField('磁盤型號', max_length=32)
    capacity = models.FloatField('磁盤容量GB')
    pd_type = models.CharField('磁盤類型', max_length=32)
    server_obj = models.ForeignKey('Server',related_name='disk')

    class Meta:
        verbose_name_plural = "硬盤表"

    def __str__(self):
        return self.slot


class NIC(models.Model):
    """
    網卡信息
    """
    name = models.CharField('網卡名稱', max_length=128)
    hwaddr = models.CharField('網卡mac地址', max_length=64)
    netmask = models.CharField(max_length=64)
    ipaddrs = models.CharField('ip地址', max_length=256)
    up = models.BooleanField(default=False)
    server_obj = models.ForeignKey('Server',related_name='nic')


    class Meta:
        verbose_name_plural = "網卡表"

    def __str__(self):
        return self.name


class Memory(models.Model):
    """
    內存信息
    """
    slot = models.CharField('插槽位', max_length=32)
    manufacturer = models.CharField('製造商', max_length=32, null=True, blank=True)
    model = models.CharField('型號', max_length=64)
    capacity = models.FloatField('容量', null=True, blank=True)
    sn = models.CharField('內存SN號', max_length=64, null=True, blank=True)
    speed = models.CharField('速度', max_length=16, null=True, blank=True)

    server_obj = models.ForeignKey('Server',related_name='memory')


    class Meta:
        verbose_name_plural = "內存表"

    def __str__(self):
        return self.slot


class AssetRecord(models.Model):
    """
    資產變動記錄,creator爲空時，表示是資產彙報的數據。
    """
    asset_obj = models.ForeignKey('Asset', related_name='ar')
    content = models.TextField(null=True)# 新增硬盤
    creator = models.ForeignKey('UserProfile', null=True, blank=True) #
    create_at = models.DateTimeField(auto_now_add=True)


    class Meta:
        verbose_name_plural = "資產記錄表"

    def __str__(self):
        return "%s-%s-%s" % (self.asset_obj.idc.name, self.asset_obj.cabinet_num, self.asset_obj.cabinet_order)


class ErrorLog(models.Model):
    """
    錯誤日誌,如：agent採集數據錯誤 或 運行錯誤
    """
    asset_obj = models.ForeignKey('Asset', null=True, blank=True)
    title = models.CharField(max_length=16)
    content = models.TextField()
    create_at = models.DateTimeField(auto_now_add=True)

    class Meta:
        verbose_name_plural = "錯誤日誌表"

    def __str__(self):
        return self.title