CMDB学习之七-实现采集错误捕捉，日志信息处理

首先采集disk的具体实现方上代码：

# !/usr/bin/env python
# -*- coding:utf-8 -*-
from .base import BasePlugin
import os,re
import traceback
from lib.response import BaseReponse
class Disk(BasePlugin):
    def win(self,handler,hostname):
        '''
        执行命令拿到结果-磁盘
        :return:
        '''
        print("执行win方法")
        ret = handler.cmd('wmic diskdrive',hostname)[0:10]
        return ret
    # def linux(self,handler,hostname):
    #     '''
    #     执行命令拿到结果-磁盘
    #     :return:
    #     '''
    #     print("执行Linux方法")
    #
    #     ret = handler.cmd('df -h',hostname)[0:10]
    #     return ret
    def linux(self, handler, hostname):
        '''
        采集数据
        :param handler:
        :param hostname:
        :return:
        '''
        #实现错误信息记录，标记，post 提交到服务端，首先定义一个字典如下：
        # result = {'status':True,'error':None,'data':None}
        #字典的形式使用比较麻烦，所有这里在lib 文件中定义一个类来使用，看起比较高端些，使用方法是
        '''
        这里是在 lib 文件实现的，使用的时候记得导入模块
        class BaseReponse():
    def __init__(self):
        self.status = True
        self.error = None
        self.data = None
    #调用内部方法 静态方法属性
    @property
    def dict(self):
        return self.__dict__
        '''
        reponse = BaseReponse()
        try :
            if self.debug:
                output = open(os.path.join(self.base_dir, 'files', 'disk.out'), 'r').read()
            else:
                shell_command = "sudo MegaCli  -PDList -aALL" #根据执行的命令
                output = handler.cmd(shell_command, hostname)
            reponse.data = self.parse(output)
        except Exception as e:
            error_msg = traceback.format_exc()
            reponse.status = False
            reponse.error = error_msg
        return reponse.dict

    def parse(self, content):
        """
        解析shell命令返回结果
        :param content: shell 命令结果
        :return:解析后的结果
        """
        response = {}
        result = []
        for row_line in content.split("\n\n\n\n"):
            result.append(row_line)
        for item in result:
            temp_dict = {}
            for row in item.split('\n'):
                if not row.strip():
                    continue
                if len(row.split(':')) != 2:
                    continue
                key, value = row.split(':')
                name = self.mega_patter_match(key)
                if name:
                    if key == 'Raw Size':
                        raw_size = re.search('(\d+\.\d+)', value.strip())
                        if raw_size:
                            temp_dict[name] = raw_size.group()
                        else:
                            raw_size = ''
                    else:
                        temp_dict[name] = value.strip()
            if temp_dict:
                response[temp_dict['slot']] = temp_dict
        return response

    @staticmethod
    def mega_patter_match(needle):
        grep_pattern = {'Slot': 'slot', 'Raw Size': 'capacity', 'Inquiry': 'model', 'PD Type': 'pd_type'}
        for key, value in grep_pattern.items():
            if needle.startswith(key):
                return value
        return False

看见截图

按照上面采集磁盘的方法，在其它的 网卡，cpu 。内存 去实现下

#######################

下面是错误日志记录 ，是loging 模块实现，思路是让每次报错的是日志信息写入到文件中

按照原来思路，把功能写到lib 目录中进行掉用

配置文件中添加一个记录文件日志的路径配置信息

导入loging 到日配置文件

import logging
from config import settings

# file_handler = logging.FileHandler('xxxxxxxx.log', 'a', encoding='utf-8')
# file_handler.setFormatter(logging.Formatter(fmt="%(asctime)s - %(name)s - %(levelname)s:  %(message)s"))
#
# logger = logging.Logger('s1', level=logging.INFO)
# logger.addHandler(file_handler)
#
# logger.info('1111')
# logger.error('2222')

class Logger:
    def __init__(self):
        self.path = settings.LOG_FILE_PATH
        file_handler = logging.FileHandler(self.path, 'a', encoding='utf-8')
        fmt = logging.Formatter(fmt="%(asctime)s - %(name)s - %(levelname)s -%(module)s:  %(message)s")
        file_handler.setFormatter(fmt)

        self.logger = logging.Logger('cmdb',level=logging.INFO)
        self.logger.addHandler(file_handler)

    def info(self,msg):
        self.logger.info(msg)

    def error(self,mag):
        self.logger.error(mag)

logger = Logger()

disk 采集文件实现代码如下

# !/usr/bin/env python
# -*- coding:utf-8 -*-
from .base import BasePlugin
import os,re
import traceback
from lib.response import BaseReponse
from lib.log import logger

class Disk(BasePlugin):
    def win(self,handler,hostname):
        '''
        执行命令拿到结果-磁盘
        :return:
        '''
        print("执行win方法")
        ret = handler.cmd('wmic diskdrive',hostname)[0:10]
        return ret
    # def linux(self,handler,hostname):
    #     '''
    #     执行命令拿到结果-磁盘
    #     :return:
    #     '''
    #     print("执行Linux方法")
    #
    #     ret = handler.cmd('df -h',hostname)[0:10]
    #     return ret
    def linux(self, handler, hostname):
        '''
        采集数据
        :param handler:
        :param hostname:
        :return:
        '''
        #实现错误信息记录，标记，post 提交到服务端，首先定义一个字典如下：
        # result = {'status':True,'error':None,'data':None}
        #字典的形式使用比较麻烦，所有这里在lib 文件中定义一个类来使用，看起比较高端些，使用方法是
        '''
        这里是在 lib 文件实现的
        class BaseReponse():
    def __init__(self):
        self.status = True
        self.error = None
        self.data = None
    #调用内部方法 静态方法属性
    @property
    def dict(self):
        return self.__dict__
        '''
        reponse = BaseReponse()
        try :
            if self.debug:
                output = open(os.path.join(self.base_dir, 'files', 'disk.out'), 'r').read()
            else:
                shell_command = "sudo MegaCli  -PDList -aALL" #根据执行的命令
                output = handler.cmd(shell_command, hostname)
            reponse.data = self.parse(output)
        except Exception as e:
            error_msg = traceback.format_exc()
            reponse.status = False
            reponse.error = error_msg
            # 记录错误日志
            logger.error(error_msg)
        return reponse.dict

    def parse(self, content):
        """
        解析shell命令返回结果
        :param content: shell 命令结果
        :return:解析后的结果
        """
        response = {}
        result = []
        for row_line in content.split("\n\n\n\n"):
            result.append(row_line)
        for item in result:
            temp_dict = {}
            for row in item.split('\n'):
                if not row.strip():
                    continue
                if len(row.split(':')) != 2:
                    continue
                key, value = row.split(':')
                name = self.mega_patter_match(key)
                if name:
                    if key == 'Raw Size':
                        raw_size = re.search('(\d+\.\d+)', value.strip())
                        if raw_size:
                            temp_dict[name] = raw_size.group()
                        else:
                            raw_size = ''
                    else:
                        temp_dict[name] = value.strip()
            if temp_dict:
                response[temp_dict['slot']] = temp_dict
        return response

    @staticmethod
    def mega_patter_match(needle):
        grep_pattern = {'Slot': 'slot', 'Raw Size': 'capacity', 'Inquiry': 'model', 'PD Type': 'pd_type'}
        for key, value in grep_pattern.items():
            if needle.startswith(key):
                return value
        return False

其它的采集插件依次方法实现