灌南县规划局网站理想嘉苑规划建设,富阳区建设局网站,自动推广软件免费,如何给企业做网站推广一、背景
生产环境的mongodb数据库是直接购买阿里云的云数据库#xff0c;但是在公司研发环境#xff0c;我们是自己手动部署的。开发和测试的数据当然没有生产环境那么重要#xff0c;但备份也是必要的#xff0c;只不过容忍一定的数据丢失。
二、备份脚本
vi /etc/cro…一、背景
生产环境的mongodb数据库是直接购买阿里云的云数据库但是在公司研发环境我们是自己手动部署的。开发和测试的数据当然没有生产环境那么重要但备份也是必要的只不过容忍一定的数据丢失。
二、备份脚本
vi /etc/crontab
# 每天的凌晨1点执行备份
0 1 * * * root /usr/bin/bash /data/mongo_bak.sh /dev/null 21vi /data/mongo_bak.sh
#!/bin/bash
#
d$(date -d -1 day %F)# 先把备份数据库保存在本地目录/mongo_bak/
[ -d /mongo_bak/$d ] || mkdir -p /mongo_bak/$d
mongodump --port 3717 -u {用户名} -p {密码} --authenticationDatabase admin -o /mongo_bak/$d/ /dev/null 21# 压缩
cd /mongo_bak tar -czf /mongo_bak/$d.tar.gz $d cd# 将备份文件复到远端目录/data/mongo_bak/bak/
scp /mongo_bak/$d.tar.gz mongo_bak192.168.8.15:/data/mongo_bak/bak/ /dev/null 21#删除源目录中的备份文件
rm -rf /mongo_bak/*#远端保留7天的备份
ssh mongo_bak192.168.8.15 find /data/mongo_bak/bak/ -mtime 7 |xargs rm -rf192.168.8.15 是保存数据库备份的远程机器/data/mongo_bak/bak/是远程机器的备份目录/mongo_bak/是本地机器的备份目录
三、ssh免密登录
1、生成ssh密钥对
[rootmongodb1 mongo_bak]# ssh-keygen -t rsa -C mongo -b 4096
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /root/.ssh/id_rsa.
Your public key has been saved in /root/.ssh/id_rsa.pub.
The key fingerprint is:
SHA256:xouv9rIur/REHf88TroIiiupYuidqHZFPBfUAwftc0 mongo
The keys randomart image is:
---[RSA 4096]----
| .o.. |
| . .... |
| o .... E |
| o o |
| o o S . |
| o o o . o |
| . o . |
| .oo . . |
|X.o** o.. |
----[SHA256]-----[rootmongodb1 mongo_bak]# ll ~/.ssh/
total 12
-rw------- 1 root root 381 Oct 11 2023 authorized_keys
-rw------- 1 root root 3243 May 28 16:16 id_rsa
-rw-r--r-- 1 root root 731 May 28 16:16 id_rsa.pub2、发送ssh公钥至远程机器
[rootmongodb1 mongo_bak]# cat ~/.ssh/id_rsa.pub | ssh root192.168.8.15 mkdir -p ~/.ssh cat ~/.ssh/authorized_keys | chmod 700 ~/.ssh chmod 600 ~/.ssh/authorized_keysThe authenticity of host 192.168.8.15 (192.168.8.15) cant be established.
ECDSA key fingerprint is SHA256:kq7eeYGHgUUw1HrymOBVR8amY0Krpv4RZFpBQUMHh2M.
ECDSA key fingerprint is MD5:9b:7d:49:5c:61:18:61:58:23:85:63:46:58:94:f1:23.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 192.168.8.15 (ECDSA) to the list of known hosts.
root192.168.8.15s password: 执行该命令后最后会提示你输入远程机器的root用户对应的登录密码。 3、登录远程机器查看authorized_keys
rootEOS6:~/.ssh# vi authorized_keys4、本机验证 ssh root192.168.8.15 本地不用输入密码即可登录远程机器192.168.8.15。
四、验证
1、本地备份
在备份的过程中会在目录/mongo_bak生成如下文件。 [rootmongodb1 mongo_bak]# ll -h
total 2.0G
drwxr-xr-x 17 root root 4.0K May 28 16:32 2024-05-27
-rw-r--r-- 1 root root 1.9G May 28 16:46 2024-05-27.tar.gz
[rootmongodb1 mongo_bak]# pwd
/mongo_bak2、远程机器
备份执行前
rootEOS6:/data/mongo_bak/bak# ll
总用量 8
drwxr-xr-x 2 root root 4096 5月 28 16:33 ./
drwxr-xr-x 3 root root 4096 5月 28 16:33 ../备份执行后
rootEOS6:/data/mongo_bak/bak# ll -h
总用量 3.0G
drwxr-xr-x 2 root root 4.0K 5月 28 17:11 ./
drwxr-xr-x 3 root root 4.0K 5月 28 16:33 ../
-rw-r--r-- 1 root root 3.0G 5月 28 17:12 2024-05-27.tar.gz
