备份MySQL数据库并上传到阿里云OSS存储

 1 #!/bin/bash
 2 # mysql_backup.sh: backup mysql databases and keep newest 7 days backup.  
 3 #  
 4 # ${db_user} is mysql username  
 5 # ${db_password} is mysql password  
 6 # ${db_host} is mysql host   
 7 # —————————–  
 8 #/root/mysql_backup.sh
 9 # everyday 3:00 AM execute database backup
10 # 0 3 * * * /root/mysql_backup_to_oss.sh
11 #/etc/cron.daily
12 
13 # the directory for story your backup file.  #
14 backup_dir="/opt/backup/mysql/"
15 
16 # 要备份的数据库名 #
17 all_db="mydb1 mydb2 mydb3"
18 
19 # 要保留的备份天数 #
20 backup_day=7
21 
22 #数据库备份日志文件存储的路径
23 logfile="/var/log/mysql_backup.log"
24 
25 # Aliyun OSS Bucket Name.
26 bucket_name=aliyunoss-backup
27 
28 # local IP address
29 local_ip=`hostname -i`
30 
31 # date format for backup file (dd-mm-yyyy)  #
32 time="$(date +"%Y-%m-%d")"
33 
34 # mysql, ${mysqldump} and some other bin‘s path  #
35 mysql="/usr/bin/mysql"
36 mysqldump="/usr/bin/mysqldump"
37 
38 # the directory for story the newest backup  #
39 test ! -d ${backup_dir} && mkdir -p ${backup_dir}
40 
41 #备份数据库函数#
42 mysql_backup()
43 {
44     # 取所有的数据库名 #
45     for db in ${all_db}
46     do
47         backname=${db}.${time}
48         dumpfile=${backup_dir}${backname}
49         
50         #将备份的时间、数据库名存入日志
51         echo "------"$(date +‘%Y-%m-%d %T‘)" Beginning database "${db}" backup--------" >>${logfile}
52         ${mysqldump} --login-path=my3306 ${db} > ${dumpfile}.sql 2>>${logfile} 2>&1
53         
54         #开始将压缩数据日志写入log
55         echo $(date +‘%Y-%m-%d %T‘)" Beginning zip ${dumpfile}.sql" >>${logfile}
56         
57         #将备份数据库文件库压成ZIP文件，并删除先前的SQL文件. #
58         tar -czvf ${backname}.tar.gz ${backname}.sql 2>&1 && rm ${dumpfile}.sql 2>>${logfile} 2>&1 
59         
60         #将压缩后的文件名存入日志。
61         echo "backup file name:"${dumpfile}".tar.gz" >>${logfile}
62         echo -e "-------"$(date +‘%Y-%m-%d %T‘)" Ending database "${db}" backup-------\n" >>${logfile}    
63     done
64 }
65 
66 delete_old_backup()
67 {    
68     echo "delete backup file:" >>${logfile}
69     # 删除旧的备份 查找出当前目录下七天前生成的文件，并将之删除
70     find ${backup_dir} -type f -mtime +${backup_day} | tee delete_list.log | xargs rm -rf
71     cat delete_list.log >>${logfile}
72 }
73 
74 upload_backups_toAliyunOSS()
75 {
76     # upload backfile to Aliyun OSS bucket
77     for db in ${all_db}
78     do
79         backname=${db}.${time}
80         echo "upload ${backname}.tar.gz to AliyunOSS begin at "$(date +‘%Y-%m-%d %T‘) >>${logfile}
81         ### Upload to AliyunOSS by storage Monthly ### 
82         ossutil64 cp ${backname}.tar.gz oss://${bucket_name}/DB_DATA/$(date +‘%Y%m‘)/${local_ip}/ -f
83         echo "upload ${backname}.tar.gz to AliyunOSS done at "$(date +‘%Y-%m-%d %T‘) >>${logfile}
84     done
85 }
86 
87 #进入数据库备份文件目录
88 cd ${backup_dir}
89 
90 mysql_backup
91 delete_old_backup
92 upload_backups_toAliyunOSS
93 
94 echo -e "========== mysql backup && upload_to_AliyunOSS done at "$(date +‘%Y-%m-%d %T‘)" ==========\n\n">>${logfile}
95 #cat ${logfile}