CMDB学习之四 ——DEBUG模式

定义一个debug，进行解析调试，到测试文件

配置文件，配置debug模式，定义环境变量，

#!/usr/bin/env python
# -*- coding:utf-8 -*-
import os
BASE_DIR= os.path.dirname(os.path.dirname(os.path.abspath(__file__)))

ENGINE='agent' # 配置数据采集模式 agent，salt，ssh

#利用反射执行采集，开发封闭原则
ENGINE_HANDLERS = {
    'agent':'src.engine.agent.AgnetHandler',
    'salt':'src.engine.salt.SaltHandler',
    'ssh':'src.engine.ssh.SSHHandler',
    # 'aliyun':'src.engine.aliyun.AliyunHandler',
}

### #######################SSH模式的配置##########################

SSH_PRIVATE_KEY="私钥路径"
SSH_USER='cmdb'  #用户名
SSH_PORT=''   #端口

PLUGINS_DICT = {
    'disk':'src.plugins.disk.Disk',
    'memory':'src.plugins.memory.Memory',
    'network':'src.plugins.network.Network',
    # 'cpu':'src.plugins.cpu.CPU',
}

DEBUG = True  #debug模式 True / False

内存采集解析，内存采集中使用的 convert，导入文件在lib目录下

#!/usr/bin/env python
# -*- coding:utf-8 -*-

def convert_to_int(value,default=0):

    try:
        result = int(value)
    except Exception as e:
        result = default

    return result

def convert_mb_to_gb(value,default=0):

    try:
        value = value.strip('MB')
        result = int(value)
    except Exception as e:
        result = default

    return result

#!/usr/bin/env python
# -*- coding:utf-8 -*-
import os
from .base import BasePlugin
from lib import convert
class Memory(BasePlugin):
    def win(self,handler,hostname):
        '''
        执行命令拿到结果-内存
        :return:
        '''
        print("执行win方法")
        ret = handler.cmd('wmic memphysical list brief',hostname)[0:10]
        return ret
    # def linux(self,handler,hostname):
    #     '''
    #     执行命令拿到结果-内存
    #     :return:
    #     '''
    #     print("执行Linux方法")
    #     ret = handler.cmd('free',hostname)[0:10]
    #     return ret
    def linux(self, handler, hostname):

        if self.debug:
            output = open(os.path.join(self.base_dir, 'files', 'memory.out'), 'r').read()
        else:
            shell_command = "sudo dmidecode  -q -t 17 2>/dev/null"
            output = handler.cmd(shell_command, hostname)
        return self.parse(output)

    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
        """
        ram_dict = {}
        key_map = {
            'Size': 'capacity',
            'Locator': 'slot',
            'Type': 'model',
            'Speed': 'speed',
            'Manufacturer': 'manufacturer',
            'Serial Number': 'sn',

        }
        devices = content.split('Memory Device')
        for item in devices:
            item = item.strip()
            if not item:
                continue
            if item.startswith('#'):
                continue
            segment = {}
            lines = item.split('\n\t')
            for line in lines:
                if len(line.split(':')) > 1:
                    key, value = line.split(':')
                else:
                    key = line.split(':')[0]
                    value = ""
                if key in key_map:
                    if key == 'Size':
                        segment[key_map['Size']] = convert.convert_mb_to_gb(value, 0)
                    else:
                        segment[key_map[key.strip()]] = value.strip()
            ram_dict[segment['slot']] = segment

        return ram_dict

磁盘采集解析

# !/usr/bin/env python
# -*- coding:utf-8 -*-
from .base import BasePlugin
import os,re
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):

        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)

        return self.parse(output)

    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

网络采集解析

#!/usr/bin/env python
# -*- coding:utf-8 -*-
import os,re
from .base import BasePlugin
class Network(BasePlugin):
    def win(self,handler,hostname):
        '''
        执行命令拿到结果-网卡
        :return:
        '''
        print("执行win方法")
        ret = handler.cmd('ipconfig',hostname)[0:10]
        return ret
    # def linux(self,handler,hostname):
    #         '''
    #         执行命令拿到结果-网卡
    #         :return:
    #         '''
    #         print("执行Linux方法")
    #         ret = handler.cmd('ifconfig',hostname)[0:10]
    #         return ret
    def linux(self, handler, hostname):
        if self.debug:
            output = open(os.path.join(self.base_dir, 'files', 'nic.out'), 'r').read()
            interfaces_info = self._interfaces_ip(output)
        else:
            interfaces_info = self.linux_interfaces(handler)
        self.standard(interfaces_info)
        return interfaces_info

    def linux_interfaces(self, handler):
        '''
        Obtain interface information for *NIX/BSD variants
        '''
        ifaces = dict()
        ip_path = 'ip'
        if ip_path:
            cmd1 = handler.cmd('sudo {0} link show'.format(ip_path))
            cmd2 = handler.cmd('sudo {0} addr show'.format(ip_path))
            ifaces = self._interfaces_ip(cmd1 + '\n' + cmd2)
        return ifaces

    def which(self, exe):
        def _is_executable_file_or_link(exe):
            # check for os.X_OK doesn't suffice because directory may executable
            return (os.access(exe, os.X_OK) and
                    (os.path.isfile(exe) or os.path.islink(exe)))

        if exe:
            if _is_executable_file_or_link(exe):
                # executable in cwd or fullpath
                return exe

            # default path based on busybox's default
            default_path = '/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin'
            search_path = os.environ.get('PATH', default_path)
            path_ext = os.environ.get('PATHEXT', '.EXE')
            ext_list = path_ext.split(';')

            search_path = search_path.split(os.pathsep)
            if True:
                # Add any dirs in the default_path which are not in search_path. If
                # there was no PATH variable found in os.environ, then this will be
                # a no-op. This ensures that all dirs in the default_path are
                # searched, which lets salt.utils.which() work well when invoked by
                # salt-call running from cron (which, depending on platform, may
                # have a severely limited PATH).
                search_path.extend(
                    [
                        x for x in default_path.split(os.pathsep)
                        if x not in search_path
                    ]
                )
            for path in search_path:
                full_path = os.path.join(path, exe)
                if _is_executable_file_or_link(full_path):
                    return full_path

        return None

    def _number_of_set_bits_to_ipv4_netmask(self, set_bits):  # pylint: disable=C0103
        '''
        Returns an IPv4 netmask from the integer representation of that mask.

        Ex. 0xffffff00 -> '255.255.255.0'
        '''
        return self.cidr_to_ipv4_netmask(self._number_of_set_bits(set_bits))

    def cidr_to_ipv4_netmask(self, cidr_bits):
        '''
        Returns an IPv4 netmask
        '''
        try:
            cidr_bits = int(cidr_bits)
            if not 1 <= cidr_bits <= 32:
                return ''
        except ValueError:
            return ''

        netmask = ''
        for idx in range(4):
            if idx:
                netmask += '.'
            if cidr_bits >= 8:
                netmask += ''
                cidr_bits -= 8
            else:
                netmask += '{0:d}'.format(256 - (2 ** (8 - cidr_bits)))
                cidr_bits = 0
        return netmask

    def _number_of_set_bits(self, x):
        '''
        Returns the number of bits that are set in a 32bit int
        '''
        # Taken from http://stackoverflow.com/a/4912729. Many thanks!
        x -= (x >> 1) & 0x55555555
        x = ((x >> 2) & 0x33333333) + (x & 0x33333333)
        x = ((x >> 4) + x) & 0x0f0f0f0f
        x += x >> 8
        x += x >> 16
        return x & 0x0000003f

    def _interfaces_ip(self, out):
        '''
        Uses ip to return a dictionary of interfaces with various information about
        each (up/down state, ip address, netmask, and hwaddr)
        '''
        ret = dict()
        right_keys = ['name', 'hwaddr', 'up', 'netmask', 'ipaddrs']

        def parse_network(value, cols):
            '''
            Return a tuple of ip, netmask, broadcast
            based on the current set of cols
            '''
            brd = None
            if '/' in value:  # we have a CIDR in this address
                ip, cidr = value.split('/')  # pylint: disable=C0103
            else:
                ip = value  # pylint: disable=C0103
                cidr = 32

            if type_ == 'inet':
                mask = self.cidr_to_ipv4_netmask(int(cidr))
                if 'brd' in cols:
                    brd = cols[cols.index('brd') + 1]
            return (ip, mask, brd)

        groups = re.compile('\r?\n\\d').split(out)
        for group in groups:
            iface = None
            data = dict()

            for line in group.splitlines():
                if ' ' not in line:
                    continue
                match = re.match(r'^\d*:\s+([\w.\-]+)(?:@)?([\w.\-]+)?:\s+<(.+)>', line)
                if match:
                    iface, parent, attrs = match.groups()
                    if 'UP' in attrs.split(','):
                        data['up'] = True
                    else:
                        data['up'] = False
                    if parent and parent in right_keys:
                        data[parent] = parent
                    continue

                cols = line.split()
                if len(cols) >= 2:
                    type_, value = tuple(cols[0:2])

                    iflabel = cols[-1:][0]
                    if type_ in ('inet',):
                        if 'secondary' not in cols:
                            ipaddr, netmask, broadcast = parse_network(value, cols)
                            if type_ == 'inet':
                                if 'inet' not in data:
                                    data['inet'] = list()
                                addr_obj = dict()
                                addr_obj['address'] = ipaddr
                                addr_obj['netmask'] = netmask
                                addr_obj['broadcast'] = broadcast
                                data['inet'].append(addr_obj)
                        else:
                            if 'secondary' not in data:
                                data['secondary'] = list()
                            ip_, mask, brd = parse_network(value, cols)
                            data['secondary'].append({
                                'type': type_,
                                'address': ip_,
                                'netmask': mask,
                                'broadcast': brd,
                            })
                            del ip_, mask, brd
                    elif type_.startswith('link'):
                        data['hwaddr'] = value
            if iface:
                if iface.startswith('pan') or iface.startswith('lo') or iface.startswith('v'):
                    del iface, data
                else:
                    ret[iface] = data
                    del iface, data
        return ret

    def standard(self, interfaces_info):

        for key, value in interfaces_info.items():
            ipaddrs = set()
            netmask = set()
            if not 'inet' in value:
                value['ipaddrs'] = ''
                value['netmask'] = ''
            else:
                for item in value['inet']:
                    ipaddrs.add(item['address'])
                    netmask.add(item['netmask'])
                value['ipaddrs'] = '/'.join(ipaddrs)
                value['netmask'] = '/'.join(netmask)
                del value['inet']