1 #!/usr/bin/env python
2 #-*- coding: utf-8 -*-
3 """
4 @Project:Py
5 @author:sandu
6 @Email: sandu12345@msn.cn
7 @Software: PyCharm
8 @file: mysql_class.py
9 @time: 2018/1/18 0018 下午 14:02
10 """
11
12 #导入模块
13 import time
14 import os
15
16 DATE = time.strftime('%Y%m%d%H%M%S')
17 DAYS = 3
18
19 class MysqlBak():
20
21 def __init__(self,DATE,DAYS):
22 self.date = DATE
23 self.days = DAYS
24 self.__DB_HOST = "127.0.0.1"
25 self.__DB_PORT = "3306"
26 self.__DB_NAME = "demooil"
27 self.__DB_USER = "demooil"
28 self.__DB_PASS = "8OvUNQU8CggrahGS"
29 self.__BIN_DIR = "/usr/local/mysql/bin/mysqldump"
30 self.__OPTIONS = "--skip-extended-insert --skip-lock-tables --set-gtid-purged=OFF --triggers --routines --events"
31 self.__MYSQLBACK_DIR = "/home/backup/demooil_bak/"
32 self.__filebak_log = "/var/log/mysqlbak.log"
33 self.__filerm_log = "/var/log/mysqlrm.log"
34
35 def mysql_bak(self):
36 try:
37 # all
38 mysql_file = self.__MYSQLBACK_DIR + str(self.date) + ".sql"
39 os.system("%s -h%s -u%s -p%s %s -d --databases %s > %s" % (self.__BIN_DIR,self.__DB_HOST,self.__DB_USER,self.__DB_PASS,self.__OPTIONS,self.__DB_NAME,mysql_file))
40 if os.path.exists(mysql_file):
41 with open(self.__filebak_log,'a') as f_obj:
42 f_obj.write('%s success back file %s
' % (self.date[0:8],mysql_file))
43 except Exception as e:
44 with open(self.__filebak_log, 'a') as f_obj:
45 f_obj.write('%s error back file %s
' % (self.date[0:8],mysql_file))
46 f_obj.write("error msg: %s" % e)
47
48 def mysql_rm(self):
49 """删除备份目录下超过一定时长的文件"""
50 f = list(os.listdir(self.__MYSQLBACK_DIR))
51 now_time = self.date[0:8]
52 for i in f:
53 if i[15:] == 'sql':
54 exit_time = i[0:8]
55 update_time = int(exit_time) + self.days
56 if update_time < int(now_time):
57 os.remove(self.__MYSQLBACK_DIR + i)
58 with open(self.__filerm_log, 'a') as file_log:
59 file_log.write("%s删除备份文件%s
" % (self.date[0:8], i))
60
61 if __name__ == '__main__':
62 mysql_bak = MysqlBak(DATE,DAYS)
63 mysql_bak.mysql_bak()
64 mysql_bak.mysql_rm()
65
66 # linux定时执行python文件
67 # crontab
68 # 0 5 * * * /usr/bin/python /root/demooil_mysql_bak.py >/dev/null 2>&1