编写原因

丢数据擦屁股太麻烦了

实现功能

• 自动备份网站(default: /var/www)
• 自动备份数据库(default: mysql)
• 自动上传(default: rclone)

前置

• rclone
• mega/onedrive等储存空间
• crontab

代码

#!/bin/bash

#Set configs
fileName="QN_WEB_BACK_date +%Y%m%d.zip"
folderPath="/root/backup"
filePath=$folderPath/$fileName

remoteFolderPath="TO BE FILLED" #"Backup_Mega:/QN_WEB_BACK/"

originWebsitePath="/var/www/"
originConfigPath="/etc/nginx/sites-aviliable/"

tempFolderName="webBackdate +%Y%m%d"
tempFolder="/tmp/$tempFolderName"
encryptPass="TO BE FILLED"

#Set database
dbUser="TO BE FILLED"
dbPass="TO BE FILLED"
dbHost="TO BE FILLED"

#Backup website files
function backup_file(){
    echo "[INFO]["date +%Y-%m-%d' '%H:%M:%S"] Backup Files"
    mkdir $tempFolder $tempFolder/databases
    cp -r  /var/www $tempFolder/websites_file
    cp -r -L /etc/nginx/sites-enabled $tempFolder/nginx_conf
}

#Backup databases
function backup_database(){
    echo "[INFO]["date +%Y-%m-%d' '%H:%M:%S"] Backup Databases"
    dbList=mysql -u$dbUser -p$dbPass -h$dbHost  -Bse "show databases" |grep -v "schema" |grep -v "sys"
    for dbName in $dbList
    do
        mysqldump -u$dbUser -p$dbPass -h$dbHost --databases $dbName > $tempFolder/databases/$dbName.sql
    done
}

#Compress files
function compress_file(){
    echo "[INFO]["date +%Y-%m-%d' '%H:%M:%S"] Compress"
    bz2File=$folderPath/"QN_WEB_BACK_date +%Y%m%d.tar"

    processorNum=cat /proc/cpuinfo |grep "processor"|wc -l
    freeMem=free | awk '/Mem/ {print $4}'
    freeMem=expr $freeMem / 1000
    if [ $processorNum -gt 2 ]; then
        apt install pbzip2
        processorNum=expr $processorNum - 1
        tar -C "/tmp" -cvf $bz2File $tempFolderName
        if [ $freeMem -gt 500 ]; then
            pbzip2 $bz2File -c -b16 -m$freeMem -p$processorNum -k >$bz2File".bz2"
        else
            pbzip2 $bz2File -c -p$processorNum -k > $bz2File".bz2"
        fi
        bz2File=$bz2File".bz2"
    else
        bz2File=$bz2File".bz2"
        tar -C "/tmp"  -cjf $bz2File $tempFolderName
    fi
    zip -0 -j -P$encryptPass $filePath $bz2File
    rm -rf $tempFolder $bz2File
}

#Upload file with rclone
function upload_file(){
    if [ ! -x "$folderPath" ]; then
        echo "[ERROR]["date +%Y-%m-%d' '%H:%M:%S"] $folderPath is not exist."
        mkdir $folderPath
        exit 1
    fi

    if [ ! -f $filePath ]; then
        echo "[ERROR]["date +%Y-%m-%d' '%H:%M:%S"] $filePath not found."
        exit 1
    else
        echo "[INFO]["date +%Y-%m-%d' '%H:%M:%S"] $filePath has been found. Start uploading ......"
        rclone copy $filePath $remoteFolderPath
        echo "[INFO]["date +%Y-%m-%d' '%H:%M:%S"] Uploading end."
    fi

}

#Delete file for more than a week to save my poor space:(
function delete_before_week(){
    beforeAMonth=$(date -d "-7 days" +%Y%m%d)

    if [ ! -d $folderPath ]; then
        echo "[INFO]["date +%Y-%m-%d' '%H:%M:%S"] Folder not found. Nothing to do."
    else
        echo "[INFO]["date +%Y-%m-%d' '%H:%M:%S"] Iteration is beginning ......"
        for file in $folderPath/*
        do
            if [ -f $file  ]; then
                extension=${file##*.}
                if [ "zip" = $extension ]; then
                    baseName=$(basename $file .zip)
                    timeStr=${baseName##*_}
                    if (( $timeStr <= $beforeAMonth )); then
                        rm -rf $file
                        echo "[INFO]["date +%Y-%m-%d' '%H:%M:%S"] Delete file $file."
                        echo "[INFO]["date +%Y-%m-%d' '%H:%M:%S"] $file has been found. Start removing ......"
                        rclone delete "$remoteFolderPath${file##*/}"
                    fi
                else
                    echo $file" is not a zip file."
                fi
            else
                echo $file" is not a file."
            fi
        done
        echo "[INFO]["date +%Y-%m-%d' '%H:%M:%S"] Iteration end ......"
    fi
}

backup_file;
backup_database;
compress_file;
upload_file;
delete_before_week;