172 lines
6.6 KiB
Bash
Executable File
172 lines
6.6 KiB
Bash
Executable File
#!/bin/sh
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# Features we want
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## Accept the following
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### backup_dir (MANDATORY)
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### wordpress_location
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### wordpress_log_location
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### wordpress_db_location
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### site_name
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### wp_db_name
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### wp_db_usename
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### wp_db_userpwd
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### borg pass-phrase (MANDATORY)
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### borg max-backup-size (MANDATORY)
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### log_rotate size
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### total log_size
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### log_off
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## Assume the following
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### backup_dir -> ~/backups/site_name
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### wordpress_location -> find it from nginx config
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### For more than 1 nginx sites -> prompt which one to use
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### backup all???
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### wordpress_log_location -> find it from nginx config
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### site_name -> find it from nginx config
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### wp_db_name -> get it from wordpress_location -> wp_config
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### wp_db_usename -> get it from wordpress_location -> wp_config
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### wp_db_userpwd -> get it from wordpress_location -> wp_config
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# https://stackoverflow.com/questions/32400933/how-can-i-list-all-vhosts-in-nginx
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# sudo nginx -T | perl -ln0777e '$,=$\; s/^\s*#.*\n//mg; print grep !$u{$_}++ && !m/^_$/, map m/(\S+)/g, m/\bserver_name\s++(.*?)\s*;/sg'
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# sudo nginx -T | grep "server_name " | sed 's/.*server_name \(.*\);/\1/'
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# -> Check if it starts with # (i.e. - deactivated)
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# -> Check if it has a corresponding (uncommented out) "root" in the same {} or any of the included files in that {}
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## Fail on following
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### No sudo
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### No nginx and no wordpress_location, wp_db_name, wp_db_username, wp_db_userpwd
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### If same script is currently running for the same site - fail
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## Create a DB backup and put it at tmp/wp_backup_script/site_name/db_bkp
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### Delete if already exists
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### mysqldump --user=username --password=password --opt DatabaseName > database.sql
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### delete it after successful backup creation
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### Run low-priority
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## Do a borg init - if it is not NOT done on the backup_dir
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### On init - show the key file on screen at the END (NOT on log)
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## Do a borg create with the timestamp
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### Run low-priority
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## Log all output to backup_dir/logs folder
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### Log rotate and delete if required
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### If log_off been mentioned - send logs to /dev/null
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## On ERROR -> output to backup_dir/logs/error
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### Add it to system log as well - even if log_off
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# For the README.md
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## Ensure you have sudo
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## If you have nginx and not providing the wordpress_location, wp_db_name, wp_db_username, wp_db_userpwd details - $ sudo nginx -t gives all OK
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## Ensure you have enough space at the backup location
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## If choosen to switch off log - check system error messages for "wp_backup_script_errors"
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## DB backup is created and stored in tmp/wp_backup_script/site_name/db_bkp
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### This is deleted after successful backup
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## If you want to schedule it - put it in appropriate location
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### Explain where - give links for more details
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## Runs on low priority - so system resources are NOT overloaded
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backup_name=wp-baseline
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backup_dir=/home/pratik/backup/borg/
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log_dir=/home/pratik/logs/borg/
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unique_identifier=pratik
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#########################################################################
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readonly backup_name
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readonly backup_dir
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readonly log_dir
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readonly unique_identifier
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# Setting this, so you won't be asked for your repository passphrase:
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export BORG_PASSPHRASE='d00x^UXryuEYTwPuZwQh'
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# Setting this, so the repo does not need to be given on the commandline:
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export BORG_REPO=$backup_dir$backup_name
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# some helpers and error handling:
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log_file=$log_dir$backup_name-$(date +%d%m%Y-%H%M%S)
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readonly log_file
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# if borg is currently running - stop sync
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if [ $(pidof borg | wc -w) -eq 1 ]
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then
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echo "Another Backup is currently running. Exiting." >> $log_file 2>&1
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exit 2
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fi
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info() { printf "\n%s %s\n\n" "$( date )" "$*" >> $log_file 2>&1; }
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trap 'echo $( date ) Backup interrupted >> $log_file 2>&1; exit 2' INT TERM
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info "Starting backup" >> $log_file 2>&1
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# Backup the most important directories into an archive named after
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# the machine this script is currently running on:
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borg create \
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--verbose \
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--filter AME \
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--list \
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--stats \
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--show-rc \
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--compression zstd,3 \
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--exclude-caches \
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--exclude '/home/*/.cache/*' \
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--exclude '/home/*/.local/share/Trash/*' \
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--exclude '/var/cache/*' \
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--exclude '/var/tmp/*' \
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--exclude "$backup_dir" \
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--exclude "$log_file" \
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::"$unique_identifier-$backup_name-{now}" \
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/etc \
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/root \
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/var \
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/srv \
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/opt \
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/usr/local \
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/usr/share/nginx \
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/home \
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>> $log_file 2>&1 \
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backup_exit=$?
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info "Pruning repository" >> $log_file 2>&1
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# Use the `prune` subcommand to maintain 7 daily, 4 weekly and 6 monthly
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# archives of THIS machine. The '{hostname}-' prefix is very important to
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# limit prune's operation to this machine's archives and not apply to
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# other machines' archives also:
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borg prune \
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--list \
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--stats \
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--prefix "$unique_identifier-$backup_name" \
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--show-rc \
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--keep-within 2d \
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--keep-last 5 \
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--keep-daily 7 \
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>> $log_file 2>&1 \
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prune_exit=$?
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# use highest exit code as global exit code
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global_exit=$(( backup_exit > prune_exit ? backup_exit : prune_exit ))
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if [ ${global_exit} -eq 1 ];
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then
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info "Backup and/or Prune finished with a warning" >> $log_file 2>&1
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fi
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if [ ${global_exit} -gt 1 ];
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then
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info "Backup and/or Prune finished with an error" >> $log_file 2>&1
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fi
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echo Status Code - $global_exit >> $log_file 2>&1
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exit ${global_exit} |