504 lines
17 KiB
Bash
Executable File
504 lines
17 KiB
Bash
Executable File
#!/bin/bash
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set -x
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#
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# PostgreSQL Backup Script Ver 1.0
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# http://autopgsqlbackup.frozenpc.net
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# Copyright (c) 2005 Aaron Axelsen <axelseaa@amadmax.com>
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#
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# This script is based of the AutoMySQLBackup Script Ver 2.2
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# It can be found at http://sourceforge.net/projects/automysqlbackup/
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#
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# The PostgreSQL changes are based on a patch agaisnt AutoMySQLBackup 1.9
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# created by Friedrich Lobenstock <fl@fl.priv.at>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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#=====================================================================
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# Set the following variables to your system needs
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# (Detailed instructions below variables)
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#=====================================================================
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# Username to access the PostgreSQL server e.g. dbuser
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#USERNAME=alchemy
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#PGPASSWORD='ngK_D8WV!Wi_'
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USERNAME=postgres
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PGPASSWORD=postgres
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# Password
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# create a file $HOME/.pgpass containing a line like this
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# hostname:*:*:dbuser:dbpass
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# replace hostname with the value of DBHOST and postgres with
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# the value of USERNAME
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# Host name (or IP address) of PostgreSQL server e.g localhost
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#DBHOST=bj-postgres-qe58e4r0.sql.tencentcdb.com
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#DBPORT=28154
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DBHOST=localhost
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DBPORT=5432
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# List of DBNAMES for Daily/Weekly Backup e.g. "DB1 DB2 DB3"
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#DBNAMES="htyuc_huiwings htyws_huiwings htytask_huiwings"
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#DBNAMES="${DBNAMES}"
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# Backup directory location e.g /backups
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BACKUPDIR="/data/backup/postgres"
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# Mail setup
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# What would you like to be mailed to you?
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# - log : send only log file
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# - files : send log file and sql files as attachments (see docs)
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# - stdout : will simply output the log to the screen if run manually.
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MAILCONTENT="log"
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# Set the maximum allowed email size in k. (4000 = approx 5MB email [see docs])
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MAXATTSIZE="4000"
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# Email Address to send mail to? (user@domain.com)
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MAILADDR="l.weinan@gmail.com"
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# ============================================================
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# === ADVANCED OPTIONS ( Read the doc's below for details )===
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#=============================================================
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# List of DBBNAMES for Monthly Backups.
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MDBNAMES="template1 $DBNAMES"
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# List of DBNAMES to EXLUCDE if DBNAMES are set to all (must be in " quotes)
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DBEXCLUDE=""
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# Include CREATE DATABASE in backup?
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CREATE_DATABASE=no
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# Separate backup directory and file for each DB? (yes or no)
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SEPDIR=yes
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# Which day do you want weekly backups? (1 to 7 where 1 is Monday)
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DOWEEKLY=6
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# Choose Compression type. (gzip or bzip2)
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COMP=bzip2
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# Command to run before backups (uncomment to use)
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#PREBACKUP="/etc/pgsql-backup-pre"
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# Command run after backups (uncomment to use)
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#POSTBACKUP="bash /home/backups/scripts/ftp_pgsql"
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#=====================================================================
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# Options documentation
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#=====================================================================
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# Set USERNAME and PASSWORD of a user that has at least SELECT permission
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# to ALL databases.
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#
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# Set the DBHOST option to the server you wish to backup, leave the
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# default to backup "this server".(to backup multiple servers make
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# copies of this file and set the options for that server)
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#
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# Put in the list of DBNAMES(Databases)to be backed up. If you would like
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# to backup ALL DBs on the server set DBNAMES="all".(if set to "all" then
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# any new DBs will automatically be backed up without needing to modify
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# this backup script when a new DB is created).
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#
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# If the DB you want to backup has a space in the name replace the space
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# with a % e.g. "data base" will become "data%base"
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# NOTE: Spaces in DB names may not work correctly when SEPDIR=no.
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#
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# You can change the backup storage location from /backups to anything
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# you like by using the BACKUPDIR setting..
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#
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# The MAILCONTENT and MAILADDR options and pretty self explanitory, use
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# these to have the backup log mailed to you at any email address or multiple
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# email addresses in a space seperated list.
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# (If you set mail content to "log" you will require access to the "mail" program
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# on your server. If you set this to "files" you will have to have mutt installed
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# on your server. If you set it sto stdout it will log to the screen if run from
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# the console or to the cron job owner if run through cron)
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#
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# MAXATTSIZE sets the largest allowed email attachments total (all backup files) you
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# want the script to send. This is the size before it is encoded to be sent as an email
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# so if your mail server will allow a maximum mail size of 5MB I would suggest setting
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# MAXATTSIZE to be 25% smaller than that so a setting of 4000 would probably be fine.
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#
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# Finally copy automysqlbackup.sh to anywhere on your server and make sure
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# to set executable permission. You can also copy the script to
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# /etc/cron.daily to have it execute automatically every night or simply
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# place a symlink in /etc/cron.daily to the file if you wish to keep it
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# somwhere else.
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# NOTE:On Debian copy the file with no extention for it to be run
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# by cron e.g just name the file "automysqlbackup"
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#
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# Thats it..
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#
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#
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# === Advanced options doc's ===
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#
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# The list of MDBNAMES is the DB's to be backed up only monthly. You should
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# always include "mysql" in this list to backup your user/password
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# information along with any other DBs that you only feel need to
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# be backed up monthly. (if using a hosted server then you should
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# probably remove "mysql" as your provider will be backing this up)
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# NOTE: If DBNAMES="all" then MDBNAMES has no effect as all DBs will be backed
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# up anyway.
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#
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# If you set DBNAMES="all" you can configure the option DBEXCLUDE. Other
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# wise this option will not be used.
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# This option can be used if you want to backup all dbs, but you want
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# exclude some of them. (eg. a db is to big).
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#
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# Set CREATE_DATABASE to "yes" (the default) if you want your SQL-Dump to create
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# a database with the same name as the original database when restoring.
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# Saying "no" here will allow your to specify the database name you want to
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# restore your dump into, making a copy of the database by using the dump
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# created with automysqlbackup.
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# NOTE: Not used if SEPDIR=no
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#
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# The SEPDIR option allows you to choose to have all DBs backed up to
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# a single file (fast restore of entire server in case of crash) or to
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# seperate directories for each DB (each DB can be restored seperately
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# in case of single DB corruption or loss).
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#
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# To set the day of the week that you would like the weekly backup to happen
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# set the DOWEEKLY setting, this can be a value from 1 to 7 where 1 is Monday,
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# The default is 6 which means that weekly backups are done on a Saturday.
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#
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# COMP is used to choose the copmression used, options are gzip or bzip2.
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# bzip2 will produce slightly smaller files but is more processor intensive so
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# may take longer to complete.
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#
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# Use PREBACKUP and POSTBACKUP to specify Per and Post backup commands
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# or scripts to perform tasks either before or after the backup process.
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#
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#
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#=====================================================================
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# Backup Rotation..
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#=====================================================================
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#
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# Daily Backups are rotated weekly..
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# Weekly Backups are run by default on Saturday Morning when
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# cron.daily scripts are run...Can be changed with DOWEEKLY setting..
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# Weekly Backups are rotated on a 5 week cycle..
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# Monthly Backups are run on the 1st of the month..
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# Monthly Backups are NOT rotated automatically...
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# It may be a good idea to copy Monthly backups offline or to another
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# server..
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#
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#=====================================================================
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# Please Note!!
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#=====================================================================
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#
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# I take no resposibility for any data loss or corruption when using
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# this script..
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# This script will not help in the event of a hard drive crash. If a
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# copy of the backup has not be stored offline or on another PC..
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# You should copy your backups offline regularly for best protection.
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#
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# Happy backing up...
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#
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#=====================================================================
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# Change Log
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#=====================================================================
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#
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# VER 1.0 - (2005-03-25)
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# Initial Release - based on AutoMySQLBackup 2.2
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#
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#=====================================================================
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#=====================================================================
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#
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# Should not need to be modified from here down!!
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#
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#=====================================================================
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#=====================================================================
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PATH=/usr/local/bin:/usr/bin:/bin:/usr/local/postgres/bin:/usr/local/pgsql/bin
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DATE=`date +%Y-%m-%d` # Datestamp e.g 2002-09-21
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DOW=`date +%A` # Day of the week e.g. Monday
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DNOW=`date +%u` # Day number of the week 1 to 7 where 1 represents Monday
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DOM=`date +%d` # Date of the Month e.g. 27
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M=`date +%B` # Month e.g January
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W=`date +%V` # Week Number e.g 37
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VER=1.0 # Version Number
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LOGFILE=$BACKUPDIR/$DBHOST-`date +%N`.log # Logfile Name
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OPT="" # OPT string for use with mysqldump ( see man mysqldump )
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BACKUPFILES="" # thh: added for later mailing
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# Create required directories
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if [ ! -e "$BACKUPDIR" ] # Check Backup Directory exists.
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then
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mkdir -p "$BACKUPDIR"
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fi
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if [ ! -e "$BACKUPDIR/daily" ] # Check Daily Directory exists.
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then
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mkdir -p "$BACKUPDIR/daily"
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fi
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if [ ! -e "$BACKUPDIR/weekly" ] # Check Weekly Directory exists.
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then
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mkdir -p "$BACKUPDIR/weekly"
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fi
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if [ ! -e "$BACKUPDIR/monthly" ] # Check Monthly Directory exists.
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then
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mkdir -p "$BACKUPDIR/monthly"
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fi
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# IO redirection for logging.
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touch $LOGFILE
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exec 6>&1 # Link file descriptor #6 with stdout.
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# Saves stdout.
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exec > $LOGFILE # stdout replaced with file $LOGFILE.
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# Functions
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# Database dump function
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dbdump () {
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PGPASSWORD="$PGPASSWORD" /usr/pgsql-13/bin/pg_dump --username=$USERNAME -h $DBHOST $OPT -p $DBPORT $1 > $2
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return 0
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}
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# Compression function
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SUFFIX=""
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compression () {
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if [ "$COMP" = "gzip" ]; then
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gzip -f "$1"
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echo
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echo Backup Information for "$1"
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gzip -l "$1.gz"
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SUFFIX=".gz"
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elif [ "$COMP" = "bzip2" ]; then
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echo Compression information for "$1.bz2"
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bzip2 -f -v $1 2>&1
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SUFFIX=".bz2"
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else
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echo "No compression option set, check advanced settings"
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fi
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return 0
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}
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# Run command before we begin
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if [ "$PREBACKUP" ]
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then
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echo ======================================================================
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echo "Prebackup command output."
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echo
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eval $PREBACKUP
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echo
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echo ======================================================================
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echo
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fi
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if [ "$SEPDIR" = "yes" ]; then # Check if CREATE DATABSE should be included in Dump
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if [ "$CREATE_DATABASE" = "no" ]; then
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OPT="$OPT"
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else
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OPT="$OPT --create"
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fi
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else
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OPT="$OPT"
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fi
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# Hostname for LOG information
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#if [ "$DBHOST" = "localhost" ]; then
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# DBHOST="`hostname -f`"
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# HOST=""
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#else
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# HOST="-h $DBHOST"
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#fi
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# If backing up all DBs on the server
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if [ "$DBNAMES" = "all" ]; then
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DBNAMES="`psql -U $USERNAME $HOST -l -A -F: | sed -ne "/:/ { /Name:Owner/d; /template0/d; s/:.*$//; p }"`"
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# If DBs are excluded
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for exclude in $DBEXCLUDE
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do
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DBNAMES=`echo $DBNAMES | sed "s/\b$exclude\b//g"`
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done
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MDBNAMES=$DBNAMES
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fi
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echo ======================================================================
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echo AutoPostgreSQLBackup VER $VER
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echo http://autopgsqlbackup.frozenpc.net/
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echo
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echo Backup of Database Server - $DBHOST
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echo ======================================================================
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# Test is seperate DB backups are required
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if [ "$SEPDIR" = "yes" ]; then
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echo Backup Start Time `date`
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echo ======================================================================
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# Monthly Full Backup of all Databases
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if [ $DOM = "01" ]; then
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for MDB in $MDBNAMES
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do
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# Prepare $DB for using
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MDB="`echo $MDB | sed 's/%/ /g'`"
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if [ ! -e "$BACKUPDIR/monthly/$MDB" ] # Check Monthly DB Directory exists.
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then
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mkdir -p "$BACKUPDIR/monthly/$MDB"
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fi
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echo Monthly Backup of $MDB...
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dbdump "$MDB" "$BACKUPDIR/monthly/$MDB/${MDB}_$DATE.$M.$MDB.sql"
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compression "$BACKUPDIR/monthly/$MDB/${MDB}_$DATE.$M.$MDB.sql"
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BACKUPFILES="$BACKUPFILES $BACKUPDIR/monthly/$MDB/${MDB}_$DATE.$M.$MDB.sql$SUFFIX"
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echo ----------------------------------------------------------------------
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done
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fi
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for DB in $DBNAMES
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do
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# Prepare $DB for using
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DB="`echo $DB | sed 's/%/ /g'`"
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# Create Separate directory for each DB
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if [ ! -e "$BACKUPDIR/daily/$DB" ] # Check Daily DB Directory exists.
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then
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mkdir -p "$BACKUPDIR/daily/$DB"
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fi
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if [ ! -e "$BACKUPDIR/weekly/$DB" ] # Check Weekly DB Directory exists.
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then
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mkdir -p "$BACKUPDIR/weekly/$DB"
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fi
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# Weekly Backup
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if [ $DNOW = $DOWEEKLY ]; then
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echo Weekly Backup of Database \( $DB \)
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echo Rotating 5 weeks Backups...
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if [ "$W" -le 05 ];then
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REMW=`expr 48 + $W`
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elif [ "$W" -lt 15 ];then
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REMW=0`expr $W - 5`
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else
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REMW=`expr $W - 5`
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fi
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eval rm -fv "$BACKUPDIR/weekly/$DB/week.$REMW.*"
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echo
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dbdump "$DB" "$BACKUPDIR/weekly/$DB/${DB}_week.$W.$DATE.sql"
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compression "$BACKUPDIR/weekly/$DB/${DB}_week.$W.$DATE.sql"
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BACKUPFILES="$BACKUPFILES $BACKUPDIR/weekly/$DB/${DB}_week.$W.$DATE.sql$SUFFIX"
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echo ----------------------------------------------------------------------
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# Daily Backup
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else
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echo Daily Backup of Database \( $DB \)
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echo Rotating last weeks Backup...
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eval rm -fv "$BACKUPDIR/daily/$DB/*.$DOW.sql.*"
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echo
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dbdump "$DB" "$BACKUPDIR/daily/$DB/${DB}_$DATE.$DOW.sql"
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compression "$BACKUPDIR/daily/$DB/${DB}_$DATE.$DOW.sql"
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BACKUPFILES="$BACKUPFILES $BACKUPDIR/daily/$DB/${DB}_$DATE.$DOW.sql$SUFFIX"
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echo ----------------------------------------------------------------------
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fi
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done
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echo Backup End `date`
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echo ======================================================================
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else # One backup file for all DBs
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echo Backup Start `date`
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echo ======================================================================
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# Monthly Full Backup of all Databases
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if [ $DOM = "01" ]; then
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echo Monthly full Backup of \( $MDBNAMES \)...
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dbdump "$MDBNAMES" "$BACKUPDIR/monthly/$DATE.$M.all-databases.sql"
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compression "$BACKUPDIR/monthly/$DATE.$M.all-databases.sql"
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BACKUPFILES="$BACKUPFILES $BACKUPDIR/monthly/$DATE.$M.all-databases.sql$SUFFIX"
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echo ----------------------------------------------------------------------
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fi
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# Weekly Backup
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if [ $DNOW = $DOWEEKLY ]; then
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echo Weekly Backup of Databases \( $DBNAMES \)
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echo
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echo Rotating 5 weeks Backups...
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if [ "$W" -le 05 ];then
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REMW=`expr 48 + $W`
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elif [ "$W" -lt 15 ];then
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REMW=0`expr $W - 5`
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else
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REMW=`expr $W - 5`
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fi
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eval rm -fv "$BACKUPDIR/weekly/week.$REMW.*"
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echo
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dbdump "$DBNAMES" "$BACKUPDIR/weekly/week.$W.$DATE.sql"
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compression "$BACKUPDIR/weekly/week.$W.$DATE.sql"
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BACKUPFILES="$BACKUPFILES $BACKUPDIR/weekly/week.$W.$DATE.sql$SUFFIX"
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echo ----------------------------------------------------------------------
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# Daily Backup
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else
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echo Daily Backup of Databases \( $DBNAMES \)
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echo
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echo Rotating last weeks Backup...
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eval rm -fv "$BACKUPDIR/daily/*.$DOW.sql.*"
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echo
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dbdump "$DBNAMES" "$BACKUPDIR/daily/$DATE.$DOW.sql"
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compression "$BACKUPDIR/daily/$DATE.$DOW.sql"
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BACKUPFILES="$BACKUPFILES $BACKUPDIR/daily/$DATE.$DOW.sql$SUFFIX"
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echo ----------------------------------------------------------------------
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fi
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echo Backup End Time `date`
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echo ======================================================================
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fi
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echo Total disk space used for backup storage..
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echo Size - Location
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echo `du -hs "$BACKUPDIR"`
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echo
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# Run command when we're done
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if [ "$POSTBACKUP" ]
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then
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echo ======================================================================
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echo "Postbackup command output."
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echo
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eval $POSTBACKUP
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echo
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echo ======================================================================
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fi
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#Clean up IO redirection
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exec 1>&6 6>&- # Restore stdout and close file descriptor #6.
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#if [ "$MAILCONTENT" = "files" ]
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#then
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# #Get backup size
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# ATTSIZE=`du -c $BACKUPFILES | grep "[[:digit:][:space:]]total$" |sed s/\s*total//`
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# if [ $MAXATTSIZE -ge $ATTSIZE ]
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# then
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# BACKUPFILES=`echo "$BACKUPFILES" | sed -e "s# # -a #g"` #enable multiple attachments
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# mutt -s "PostgreSQL Backup Log and SQL Files for $DBHOST - $DATE" $BACKUPFILES $MAILADDR < $LOGFILE #send via mutt
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# else
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# cat "$LOGFILE" | mail -s "WARNING! - PostgreSQL Backup exceeds set maximum attachment size on $HOST - $DATE" $MAILADDR
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# fi
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#elif [ "$MAILCONTENT" = "log" ]
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#then
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# cat "$LOGFILE" | mail -s "PostgreSQL Backup Log for $DBHOST - $DATE" $MAILADDR
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#else
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# cat "$LOGFILE"
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#fi
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# Clean up Logfile
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eval rm -f "$LOGFILE"
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exit 0
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