mirror of
https://github.com/teddysun/across.git
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258 lines
7.5 KiB
Bash
258 lines
7.5 KiB
Bash
#!/usr/bin/env bash
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PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bin
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#==============================================================#
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# Description: backup script #
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# Author: Teddysun <i@teddysun.com> #
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# Visit: https://teddysun.com #
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#==============================================================#
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[[ $EUID -ne 0 ]] && echo 'Error: This script must be run as root!' && exit 1
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### START OF CONFIG ###
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# Encrypt flag(true:encrypt, false:not encrypt)
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ENCRYPTFLG=true
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# KEEP THE PASSWORD SAFE.
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# The password used to encrypt the backup
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# To decrypt backups made by this script, run the following command:
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# openssl enc -aes256 -in [encrypted backup] -out decrypted_backup.tgz -pass pass:[backup password] -d -md sha1
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BACKUPPASS="mypassword"
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# Directory to store backups
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LOCALDIR="/root/backups/"
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# Temporary directory used during backup creation
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TEMPDIR="/root/backups/temp/"
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# File to log the outcome of backups
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LOGFILE="/root/backups/backup.log"
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# OPTIONAL: If you want MySQL to be backed up, enter the root password below
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MYSQL_ROOT_PASSWORD=""
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# Below is a list of MySQL database name that will be backed up
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# if you want backup all databases, leave it blank.
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MYSQL_DATABASE_NAME[0]=""
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# Below is a list of files and directories that will be backed up in the tar backup
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# For example:
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# File: /data/www/default/test.tgz
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# Directory: /data/www/default/test/
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# if you want not to be backed up, leave it blank.
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BACKUP[0]=""
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# Number of days to store daily local backups
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LOCALAGEDAILIES="7"
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# Delete Googole Drive's remote file flag(true:delete, false:not delete)
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DELETE_REMOTE_FILE_FLG=true
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# Date & Time
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BACKUPDATE=$(date +%Y%m%d%H%M%S)
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# Backup file name
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TARFILE="${LOCALDIR}""$(hostname)"_"${BACKUPDATE}".tgz
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# Backup MySQL dump file name
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SQLFILE="${TEMPDIR}mysql_${BACKUPDATE}.sql"
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### END OF CONFIG ###
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log() {
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echo "$(date "+%Y-%m-%d %H:%M:%S")" "$1"
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echo -e "$(date "+%Y-%m-%d %H:%M:%S")" "$1" >> ${LOGFILE}
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}
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### START OF CHECKS ###
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# Check if the backup folders exist and are writeable
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if [ ! -d "${LOCALDIR}" ]; then
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mkdir -p ${LOCALDIR}
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fi
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if [ ! -d "${TEMPDIR}" ]; then
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mkdir -p ${TEMPDIR}
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fi
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# This section checks for all of the binaries used in the backup
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BINARIES=( cat cd du date dirname echo openssl mysql mysqldump pwd rm tar )
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# Iterate over the list of binaries, and if one isn't found, abort
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for BINARY in "${BINARIES[@]}"; do
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if [ ! "$(command -v "$BINARY")" ]; then
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log "$BINARY is not installed. Install it and try again"
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exit 1
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fi
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done
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### END OF CHECKS ###
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STARTTIME=$(date +%s)
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cd ${LOCALDIR} || exit
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log "Backup progress start"
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### START OF MYSQL BACKUP ###
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if [ -z ${MYSQL_ROOT_PASSWORD} ]; then
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log "MySQL root password not set, MySQL back up skip"
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else
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log "MySQL dump start"
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mysql -u root -p"${MYSQL_ROOT_PASSWORD}" 2>/dev/null <<EOF
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exit
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EOF
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if [ $? -ne 0 ]; then
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log "MySQL root password is incorrect. Please check it and try again"
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exit 1
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fi
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if [ "${MYSQL_DATABASE_NAME[*]}" == "" ]; then
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mysqldump -u root -p"${MYSQL_ROOT_PASSWORD}" --all-databases > "${SQLFILE}" 2>/dev/null
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if [ $? -ne 0 ]; then
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log "MySQL all databases backup failed"
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exit 1
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fi
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log "MySQL all databases dump file name: ${SQLFILE}"
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#Add MySQL backup dump file to BACKUP list
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BACKUP=(${BACKUP[*]} ${SQLFILE})
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else
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for db in ${MYSQL_DATABASE_NAME[*]}
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do
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unset DBFILE
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DBFILE="${TEMPDIR}${db}_${BACKUPDATE}.sql"
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mysqldump -u root -p"${MYSQL_ROOT_PASSWORD}" ${db} > "${DBFILE}" 2>/dev/null
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if [ $? -ne 0 ]; then
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log "MySQL database name [${db}] backup failed, please check database name is correct and try again"
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exit 1
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fi
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log "MySQL database name [${db}] dump file name: ${DBFILE}"
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#Add MySQL backup dump file to BACKUP list
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BACKUP=(${BACKUP[*]} ${DBFILE})
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done
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fi
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log "MySQL dump completed"
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fi
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### END OF MYSQL BACKUP ###
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### START OF TAR BACKUP ###
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log "Tar backup file start"
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tar -zcPf ${TARFILE} ${BACKUP[*]}
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if [ $? -ne 0 ]; then
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log "Tar backup file failed"
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exit 1
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fi
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log "Tar backup file completed"
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# Encrypt tar file
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if ${ENCRYPTFLG}; then
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log "Encrypt backup file start"
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openssl enc -aes256 -in "${TARFILE}" -out "${TARFILE}.enc" -pass pass:"${BACKUPPASS}" -md sha1
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log "Encrypt backup file completed"
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# Delete unencrypted tar
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log "Delete unencrypted tar file"
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rm -f ${TARFILE}
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fi
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# Delete MySQL temporary dump file
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log "Delete MySQL temporary dump file"
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rm -f ${TEMPDIR}*.sql
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log "Backup progress complete"
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if ${ENCRYPTFLG}; then
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BACKUPSIZE=$(du -h ${TARFILE}.enc | cut -f1)
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log "File name: ${TARFILE}.enc, File size: ${BACKUPSIZE}"
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else
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BACKUPSIZE=$(du -h ${TARFILE} | cut -f1)
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log "File name: ${TARFILE}, File size: ${BACKUPSIZE}"
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fi
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# Transfer backup file to Google Drive
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# If you want to install gdrive command, please visit website:
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# https://github.com/prasmussen/gdrive
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# of cause, you can use below command to install it
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# For x86_64: wget -O /usr/bin/gdrive http://dl.teddysun.com/files/gdrive-linux-x64; chmod +x /usr/bin/gdrive
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# For i386: wget -O /usr/bin/gdrive http://dl.teddysun.com/files/gdrive-linux-386; chmod +x /usr/bin/gdrive
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if [ ! "$(command -v "gdrive")" ]; then
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GDRIVE_COMMAND=false
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log "gdrive is not installed"
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log "File transfer skipped. please install it and try again"
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else
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GDRIVE_COMMAND=true
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log "Tranferring backup file to Google Drive"
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if ${ENCRYPTFLG}; then
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gdrive upload --no-progress ${TARFILE}.enc >> ${LOGFILE}
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else
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gdrive upload --no-progress ${TARFILE} >> ${LOGFILE}
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fi
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log "Tranfer completed"
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fi
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### END OF TAR BACKUP ###
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### START OF DELETE OLD BACKUP FILE###
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getFileDate() {
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unset FILEYEAR FILEMONTH FILEDAY FILETIME FILEDAYS FILEAGE
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FILEYEAR=$(echo "$1" | cut -d_ -f2 | cut -c 1-4)
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FILEMONTH=$(echo "$1" | cut -d_ -f2 | cut -c 5-6)
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FILEDAY=$(echo "$1" | cut -d_ -f2 | cut -c 7-8)
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FILETIME=$(echo "$1" | cut -d_ -f2 | cut -c 9-14)
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if [[ "${FILEYEAR}" && "${FILEMONTH}" && "${FILEDAY}" && "${FILETIME}" ]]; then
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#Approximate a 30-day month and 365-day year
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FILEDAYS=$(( $((10#${FILEYEAR}*365)) + $((10#${FILEMONTH}*30)) + $((10#${FILEDAY})) ))
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FILEAGE=$(( 10#${DAYS} - 10#${FILEDAYS} ))
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return 0
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fi
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return 1
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}
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deleteRemoteFile() {
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local FILENAME=$1
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if ${DELETE_REMOTE_FILE_FLG} && ${GDRIVE_COMMAND}; then
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local FILEID=$(gdrive list -q "name = '${FILENAME}'" --no-header | awk '{print $1}')
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if [ -n ${FILEID} ]; then
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gdrive delete ${FILEID} >> ${LOGFILE}
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log "Google Drive's old backup file name:${FILENAME} has been deleted"
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fi
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fi
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}
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AGEDAILIES=${LOCALAGEDAILIES}
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DAY=$(date +%d)
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MONTH=$(date +%m)
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YEAR=$(date +%C%y)
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#Approximate a 30-day month and 365-day year
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DAYS=$(( $((10#${YEAR}*365)) + $((10#${MONTH}*30)) + $((10#${DAY})) ))
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cd ${LOCALDIR} || exit
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if ${ENCRYPTFLG}; then
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LS=($(ls *.enc))
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else
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LS=($(ls *.tgz))
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fi
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for f in ${LS[*]}
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do
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getFileDate ${f}
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if [ $? == 0 ]; then
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if [[ ${FILEAGE} -gt ${AGEDAILIES} ]]; then
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rm -f ${f}
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log "Old backup file name:${f} has been deleted"
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deleteRemoteFile ${f}
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fi
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fi
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done
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### END OF DELETE OLD BACKUP FILE###
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ENDTIME=$(date +%s)
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DURATION=$((ENDTIME - STARTTIME))
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log "All done"
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log "Backup and transfer completed in ${DURATION} seconds"
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