为了解决日志文件监控的问题， 使用python脚本完成了基于关键字的告警功能
环境 python 2.7
依赖包 time \ traceback \ filelock \ logging
代码如下：
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
|
#!/bin/python
#coding:utf-8
import sys
reload(sys)
sys.setdefaultencoding('utf8')
import re
import os
from urllib import urlencode
import logging
import filelock
import time
import traceback
#config.conf
#文件1:关键字A|关键字B:出现次数:告警方式:联系方式:联系组:某某异常
#文件2:关键字C|关键字D:出现次数:告警方式:联系方式:联系组:某某异常
#rc.local增加
#sudo -u monitor /bin/bash -x /home/apps/logmon-job/deploy_py.sh
logging.basicConfig(level=logging.DEBUG,
format='%(asctime)s %(filename)s[line:%(lineno)d] %(levelname)s %(message)s',
datefmt='%a, %d %b %Y %H:%M:%S',
filename='/home/logs/monitor/logmon.log',
#filename='/Users/mac/Desktop/logmon/logmon.log',
filemode='a')
basDir='/home/apps/logmon-job/'
posFiles=basDir+'/pos.log'
configFile=basDir+'config.conf'
def readOnly(filename):
return open(filename,'r')
# pass
def readWrite(filename):
return open(filename,'rw')
# pass
def writeOnly(filename):
return open(filename,'w')
# pass
# def closesfile():
# pass
def getStartPosLog(posFiles):
txt=readOnly(posFiles)
result={}
for i in txt :
filename,pos=i.split(':')
if filename != '' :
result[filename]=pos
return result
txt.close()
def rematch(txt,regular):
resultList=[]
for t in txt.split(r'\n') :
# print t
# pattern = re.compile(r':')
pattern = re.compile(regular)
resultList=(pattern.findall(t))
try :
# print '匹配结果为',resultList
return len(resultList),regular , resultList[0]
except Exception as e :
print e
return 0 , regular , ''
# pass
def getEndPost(f):
filename=readOnly(f)
try :
nowpos=filename.tell()
filename.seek(0,2)
endpos=filename.tell()
filename.seek(nowpos,0)
except :
endpos = 0
filename.close()
return endpos
# pass
def getDistinct(startpos,endpos):
return endpos-startpos
def getText(f,startpos,endpos):
filename=readOnly(f)
filename.seek(startpos,0)
textLength=getDistinct(startpos,endpos)
text=filename.read(textLength)
filename.close()
return text
def updatePosLog(posResult,posFiles):
f=writeOnly(posFiles)
# print 'posResult ',posResult
for k in posResult.keys() :
v=posResult[k]
f.writelines('%s:%s\n' %(k,v))
f.close()
pass
def getAlterConfi(filename):
#文件:关键字:出现次数:告警方式:联系方式:联系组
f=readOnly(filename)
result={}
for lines in f.readlines():
# print lines
try :
filename , key , count , alterType , alterAddress , alterGroup ,alterMessage= lines.strip('\n').split(":")
result[filename]={}
result[filename]["key"] =key
result[filename]["count"] =count
result[filename]["alterType"] =alterType
result[filename]["alterAddress"]=alterAddress
result[filename]["alterGroup"] =alterGroup
result[filename]["alterMessage"]=alterMessage
except Exception as e:
print e
print '错误的配置 %s' % (lines.strip('\n'))
pass
return result
def sendSms(account,message):
data={
'accounts':account ,
'templateName':'opalert' ,
'alertcontent':message ,
}
encodeMessage=urlencode(data)
#正式时需要开启
os.system('curl -I "http://10.1.1.146:8080/sms/send?%s" ' % ( encodeMessage ) )
def main():
global posFiles
global configFile
AlterConfi=getAlterConfi(configFile)
print AlterConfi
posResult=getStartPosLog(posFiles)
posResult_bak=getStartPosLog(posFiles)
# print posResult
for filename in AlterConfi.keys() :
keyDict=AlterConfi[filename]
print '开始检查文件 ',filename
#print rematch(filename,r'#')[0]
if not os.path.exists(filename):
print 'file "%s" not exist ,pass' % (filename)
# continue
if os.path.exists(filename):
endpos = getEndPost(filename)
if endpos == 0 :
print 'file "%s" is empty ,pass' % (filename)
else :
try :
startpos= int(posResult[filename])
except :
startpos = 0
print 'startpos is %.f , endpos is %.f' %(startpos ,endpos)
#处理切割后，偏移量归位
if startpos > endpos :
startpos = 0
text = getText(filename,startpos,endpos)
# print '%s text is : '%(filename) , text
#分析关键字
#print AposlterConfi[filename]
matchCount , regular , resultList = rematch(text,keyDict['key'])
print '匹配关键字',regular , '匹配长度为', matchCount , '关键字告警阈值' ,keyDict['count'] , '关键字' , resultList
if int(matchCount) >= int(keyDict['count']) :
print 'alterGroup len is ',len(keyDict['alterGroup'])
print 'alterType len is ' ,len(keyDict['alterType'])
if len(keyDict['alterGroup']) > 0:
pass
if len(keyDict['alterType']) >0:
if keyDict['alterType'].upper() == 'SMS' :
for account in keyDict['alterAddress'].split(',') :
if len(account) >0 :
sendSms(account,'发现%s 告警，关键字:%s ,出现次数:%s ' %(keyDict['alterMessage'] , resultList , matchCount ))
pass
#记录末尾偏移量
posResult_bak[filename]=endpos
print '打印文件偏移量信息',posResult_bak
#正式时需要开启
updatePosLog(posResult_bak,posFiles)
if __name__ == '__main__':
lock = filelock.FileLock("/home/apps/logmon-job/logmon.py.lock")
if lock:
logging.info("CaiWeiCheng Get Lock.start!!!")
try:
with lock.acquire(timeout=5):
while 1 :
main()
time.sleep(60)
# pass
#except filelock.timeout :
except Exception as e :
print traceback.format_exc()
print "timeout" logging.warning("get file lock timeout")
|
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。