CMDB服务器管理系统【s5day90】:API构造可插拔式插件逻辑

1、服务器端目录结构:

CMDB服务器管理系统【s5day90】:API构造可插拔式插件逻辑

1、__init__.py

from django.conf import settings
from repository import models
import importlib
from .server import Server class PluginManger(object): def __init__(self):
self.plugin_items = settings.PLUGIN_ITEMS
self.basic_key = "basic"
self.board_key = "board" def exec(self,server_dict):
""" :param server_dict:
:return: 1,执行完全成功; 2, 局部失败;3,执行失败;4. 服务器不存在
"""
ret = {'code': 1,'msg':None} hostname = server_dict[self.basic_key]['data']['hostname']
server_obj = models.Server.objects.filter(hostname=hostname).first()
if not server_obj:
ret['code'] = 4
return ret obj = Server(server_obj,server_dict[self.basic_key],server_dict[self.board_key])
obj.process() # 对比更新[硬盘,网卡,内存,可插拔的插件]
for k,v in self.plugin_items.items():
try:
module_path,cls_name = v.rsplit('.',maxsplit=1) md = importlib.import_module(module_path)
cls = getattr(md,cls_name)
obj = cls(server_obj,server_dict[k])
obj.process()
except Exception as e:
ret['code'] = 2 return ret

2、disk.py

from repository import models

class Disk(object):
def __init__(self,server_obj,info):
self.server_obj = server_obj
self.disk_dict = info def process(self):
# 硬盘、网卡和内存
new_disk_info_dict = self.disk_dict['data']
"""
{
'0': {'slot': '0', 'pd_type': 'SAS', 'capacity': '279.396', 'model': 'SEAGATE ST300MM0006 LS08S0K2B5NV'},
'1': {'slot': '1', 'pd_type': 'SAS', 'capacity': '279.396', 'model': 'SEAGATE ST300MM0006 LS08S0K2B5AH'},
'2': {'slot': '2', 'pd_type': 'SATA', 'capacity': '476.939', 'model': 'S1SZNSAFA01085L Samsung SSD 850 PRO 512GB EXM01B6Q'},
'3': {'slot': '3', 'pd_type': 'SATA', 'capacity': '476.939', 'model': 'S1AXNSAF912433K Samsung SSD 840 PRO Series DXM06B0Q'},
'4': {'slot': '4', 'pd_type': 'SATA', 'capacity': '476.939', 'model': 'S1AXNSAF303909M Samsung SSD 840 PRO Series DXM05B0Q'},
'5': {'slot': '5', 'pd_type': 'SATA', 'capacity': '476.939', 'model': 'S1AXNSAFB00549A Samsung SSD 840 PRO Series
}"""
new_disk_info_list = self.server_obj.disk.all()
"""
[
obj,
obj,
obj,
]
"""
new_disk_slot_set = set(new_disk_info_dict.keys())
old_disk_slot_set = {obj.slot for obj in new_disk_info_list} # add_slot_list = new_disk_slot_set - old_disk_slot_set
add_slot_list = new_disk_slot_set.difference(old_disk_slot_set)
del_slot_list = old_disk_slot_set.difference(new_disk_slot_set)
update_slot_list = old_disk_slot_set.intersection(new_disk_slot_set) add_record_list = []
# 增加 [2,5]
for slot in add_slot_list:
value = new_disk_info_dict[slot]
tmp = "添加硬盘..."
add_record_list.append(tmp)
value['server_obj'] = self.server_obj
models.Disk.objects.create(**value)
# 删除 [4,6]
models.Disk.objects.filter(server_obj=self.server_obj, slot__in=del_slot_list).delete() # 更新 [7,8]
for slot in update_slot_list:
value = new_disk_info_dict[
slot] # {'slot': '0', 'pd_type': 'SAS', 'capacity': '279.396', 'model': 'SEAGATE ST300MM0006 LS08S0K2B5NV'}
obj = models.Disk.objects.filter(server_obj=self.server_obj, slot=slot).first()
for k, new_val in value.items():
old_val = getattr(obj, k)
if old_val != new_val:
setattr(obj, k, new_val)
obj.save() def add_disk(self):
pass def del_disk(self):
pass def update_disk(self):
pass

3、nic.py

class Nic(object):
def __init__(self,server_obj,info):
self.server_obj = server_obj
self.nic_dict = info def process(self):
pass

4、server.py

from repository import models

class Server(object):

    def __init__(self,server_obj,basic_dict,board_dict):
self.server_obj = server_obj
self.basic_dict = basic_dict
self.board_dict = board_dict def process(self,):
# 更新server表
tmp = {}
tmp.update(self.basic_dict['data'])
tmp.update(self.board_dict['data']) # 服务器数据更新
tmp.pop('hostname')
record_list = []
for k, new_val in tmp.items():
old_val = getattr(self.server_obj, k)
if old_val != new_val:
record = "[%s]的[%s]由[%s]变更为[%s]" % (self.server_obj.hostname, k, old_val, new_val)
record_list.append(record)
setattr(self.server_obj, k, new_val)
self.server_obj.save()
if record_list:
models.ServerRecord.objects.create(server_obj=self.server_obj, content=';'.join(record_list))

5、views.py

import json
from django.shortcuts import render,HttpResponse
from django.views.decorators.csrf import csrf_exempt
from django.conf import settings
from repository import models
from .plugins import PluginManger def server(request):
# 客户端提交的最新资产数据
server_dict = json.loads(request.body.decode('utf-8')) # 检查server表中是否有当前资产信息【主机名是唯一标识】
if not server_dict['basic']['status']:
return HttpResponse('臣妾做不到') manager = PluginManger()
response = manager.exec(server_dict) return HttpResponse(json.dumps(response))

settings.py在尾部添加如下内容:

PLUGIN_ITEMS = {
"nic": "api.plugins.nic.Nic",
"disk": "api.plugins.disk.Disk",
"memory": "api.plugins.memory.Memory",
}

  

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