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33b1bd70f2
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75d4055d78
5 changed files with 40 additions and 200 deletions
40
backups/create_nextcloud_backup.sh
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40
backups/create_nextcloud_backup.sh
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#!/bin/bash
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# Backup script for Nextcloud in a kubernetes cluster
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BACKUP_DEST='/mnt/PRIVATE_DOCS/home/backup'
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PASSFILE='./nextcloud_pass.txt'
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# Create filename for database
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database_backupfile="nextcloud-sqlbkp_$(date +'%Y%m%d').bak"
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# Retrieve container names
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base_container="$( docker ps --format '{{.Names}}' | grep hugocloud-nextcloud_hugocloud-nextcloud )"
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database_container="$( docker ps --format '{{.Names}}' | grep hugocloud-postgresql_hugocloud-postgresql )"
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# Abort entire script if any command fails
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set -e
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# Turn on maintenance mode
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docker exec --user www-data "${base_container}" php occ maintenance:mode --on
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# Database backup
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>&2 echo 'Backing up database'
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internal_database_backupfile="/tmp/${database_backupfile}"
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docker exec --env-file "${PASSFILE}" "${database_container}" pg_dump 'nextcloud' -cwv -h 'localhost' -U 'nextcloud' -f "${internal_database_backupfile}"
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docker cp "${database_container}":"${internal_database_backupfile}" "${BACKUP_DEST}"
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# Files backup
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for file in 'config' 'themes'; do
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>&2 printf 'Copying %s\n' "${file}"
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docker cp -a "${base_container}":"/var/www/html/${file}" "${BACKUP_DEST}"
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done
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# Turn off maintenance mode
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docker exec --user www-data "${base_container}" php occ maintenance:mode --off
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# Backup cleanup
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# Only keep 30 days of backups
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>&2 echo 'Clean up old database backups'
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find "${BACKUP_DEST}" -name '*sqlbkp*' -type f -mtime +30 -print -delete
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>&2 echo 'Done'
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#!/bin/bash
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# Create archived backups of zfs datasets, with support for incremental backups from automated snapshots.
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# Usage: backup-zfs-dataset [OPTIONS] <dataset>
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usage() {
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>&2 printf "Usage: %s [OPTIONS] <dataset>\n" "$0"
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>&2 printf "Options:\n"
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>&2 printf "\t-c --compression-level <level> \t Specify compression level (integer)\n"
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>&2 printf "\t-s --dataset <dataset name> \t Specify dataset name\n"
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>&2 printf "\t-d --destination <path to directory> \t Specify destination\n"
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>&2 printf "\t-m --max-size <size> \t Specify maximum size of archive parts\n"
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exit "${1:-1}"
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}
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# Get options.
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while [[ $# -gt 0 ]]; do
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case "${1}" in
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--compression_level | -c)
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if ! [[ "${2}" =~ -[[:digit:]] ]]; then
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>&2 printf "Error: Invalid compression level: %s\n" "${2}"
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usage
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fi
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compression_level="${2}"
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shift 2
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;;
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--dataset | -s)
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if ! [ -n "${2}" ]; then
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>&2 printf "Error: Invalid dataset: %s\n" "${2}"
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usage
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fi
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dataset="${2}"
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shift 2
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;;
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--destination | -d)
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if ! [ -d "${2}" ]; then
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>&2 printf "Error: Destination directory does not exist: %s\n" "${2}"
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usage
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fi
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destination="${2}"
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shift 2
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;;
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--max-size | -m)
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if ! [[ "${2}" =~ [[:digit:]](K|M|G) ]]; then
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>&2 printf "Error: Invalid maximum size: %s\n" "${2}"
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usage
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fi
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max_size="${2}"
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shift 2
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;;
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*)
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>&2 printf "Error: Invalid option: %s\n" "${1}"
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usage
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;;
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esac
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done
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# Check arguments.
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if [ -z "${dataset}" ]; then
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>&2 printf "Error: You need to specify a dataset.\n"
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usage
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fi
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# Working snapshots
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# Find snapshots
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snapshot_location="/mnt/${dataset}/.zfs/snapshot"
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latest_auto="$( find "${snapshot_location}"/* -maxdepth 0 -name 'auto*' -type d | sort -n | tail -n1 | xargs -n1 basename >2 /dev/null )"
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latest_manual="$( find "${snapshot_location}"/* -maxdepth 0 -name 'manual*' -type d | sort -n | tail -n1 | xargs -n1 basename >2 /dev/null )"
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# Check snapshots existance
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if ! [ -n "${latest_manual}" ]; then
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>&2 printf "Error: No manual snapshot could be found!\n"
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exit 2
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fi
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if ! [ -n "${latest_auto}" ]; then
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>&2 printf "Error: No automatic snapshot could be found!\n"
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exit 2
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fi
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printf "Latest auto snapshot: %s\nLatest manual snapshot: %s\n" "${latest_auto}" "${latest_manual}"
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# Abort entire script if anything fails.
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set -e
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# Backups
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# Base backup.
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output_filename="${destination}/${latest_manual}.gz"
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existing_backup="$( find "${destination}" -type f -name "${output_filename}.part.[a-z][a-z]" -print )" # -quit if you don't need to know every file.
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if ! [ ${existing_backup} ]; then
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printf "Info: If you've manually created a new snapshot, you might want to remove the old backups.\n"
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printf "Latest manual snapshot was not yet backed up, backing up now.\n"
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sudo zfs send --verbose "${dataset}@${latest_manual}" \
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| gzip "${compression_level:='-1'}" --verbose --rsyncable \
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| split - --verbose -b "${max_size}" "${output_filename}.part."
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printf "Written manual backup to: %s\n" "${output_filename}"
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elif [ "${force_create_manual_backup}" ]; then
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# TODO What if the new backup is smaller than the previous?
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printf "Removing previous backup files.\n"
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rm "${existing_backup}"
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printf "Backing up manual snapshot.\n"
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sudo zfs send --verbose "${dataset}@${latest_manual}" \
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| gzip "${compression_level:='-1'}" --verbose --rsyncable \
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| split - --verbose -b "${max_size}" "${output_filename}.part."
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printf "Written manual backup to: %s\n" "${output_filename}"
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else
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printf "Found existing backup of manual snapshot: %s\n" "${existing_backup}"
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fi
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# Incremental incremental backup.
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printf "Creating incremental backup between %s and %s\n" "${latest_manual}" "${latest_auto}"
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output_filename="${destination}/${latest_manual}-${latest_auto}.gz"
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sudo zfs send -i "@${latest_manual}" "${dataset}@${latest_auto}" \
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| gzip "${compression_level}" --verbose \
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| split - --verbose -b "${max_size:='2G'}" "${output_filename}.part."
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printf "Written incremental backup to: %s\n" "${output_filename}"
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# TODO Cleanup
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printf "Done!\n"
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#!/bin/bash
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# Backup Nextcloud database in a Kubernetes environment.
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# Usage: backup-database <destination>
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usage() {
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>&2 printf "Usage: %s <destination>\n" "${0}"
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exit "${1:-1}"
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}
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# Get options
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while getopts ":e:" option; do
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case "${option}" in
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e)
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if ! [ -f "${OPTARG}" ]; then
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>&2 printf "Error: Specified environment file does not exist: '%s'.\n" "${OPTARG}"
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elif ! [ -r "${OPTARG}" ]; then
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>&2 printf "Error: Specified environment file is not readable: '%s'.\n" "${OPTARG}"
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fi
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env_file="${OPTARG}"
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;;
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*)
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>&2 printf "Error: Invalid option: '%s'.\n" "${option}"
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usage
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;;
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esac
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done
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# Check arguments.
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if [ $# -ne 1 ]; then
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>&2 printf "Error: You need to specify a destination.\n"
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usage
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elif ! [ -d "${1}" ]; then
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>&2 printf "Error: Specified destination does not exist or is not readable : '%s'.\n" "${1}"
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usage
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else
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destination="${1}"
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fi
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# Filename for database backup
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database_backupfile="nextcloud-sqlbkp_$(date +'%Y%m%d').bak"
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# Retrieve container names
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base_container="$( docker ps --format '{{.Names}}' | grep -E 'nextcloud-2_nextcloud-2-[0-9a-z]{10}-[0-9a-z]{5}' )"
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database_container="$( docker ps --format '{{.Names}}' | grep postgres_nextcloud-2-cnpg-main-1 )"
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if ! [[ -n "${base_container}" && -n "${database_container}" ]]; then
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>&2 printf "Error: Not all containers could be found.\n"
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exit 2
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fi
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# Abort entire script if any command fails
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set -e
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# Turn on maintenance mode
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docker exec "${base_container}" php occ maintenance:mode --on
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# Database backup
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echo 'Backing up database'
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host_database_backupfile="${destination}/${database_backupfile}"
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docker exec --env-file "${env_file:='./nextcloud.env'}" "${database_container}" pg_dump 'nextcloud' -cwv -h 'localhost' -U 'nextcloud' > "${host_database_backupfile}"
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# Files backup
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for file in 'config' 'themes'; do
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printf 'Copying %s\n' "${file}"
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docker cp -a "${base_container}":"/var/www/html/${file}" "${destination}"
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done
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# Turn off maintenance mode
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docker exec "${base_container}" php occ maintenance:mode --off
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# Backup cleanup
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# Only keep 30 days of backups
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printf 'Clean up old database backups'
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find "${destination}" -name '*sqlbkp*' -type f -mtime +30 -print -delete
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printf 'Done'
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