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https://gitlab.archlinux.org/archlinux/infrastructure.git
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268080569a
Due to the "systemctl is-active foo && backup-foo || true" shorthand, errors during database dumping were being ignored. Change the MariaDB section to also be wrapped in a proper if statement. Finally, get rid of "|| true" silencing statements + enable errexit in helper scripts.
97 lines
2.5 KiB
Django/Jinja
97 lines
2.5 KiB
Django/Jinja
#!/usr/bin/env bash
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set -e
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src="/"
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snapshotdir="backup-snapshot"
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backup_mountdir="/backup"
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declare -a list_of_btrfs_submounts
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##
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# usage : is_btrfs( $path )
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# return : whether $path is on a btrfs
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# source: makechrootpkg from devtools
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##
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is_btrfs() {
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[[ -e "$1" && "$(stat -f -c %T "$1")" == btrfs ]]
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}
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##
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# usage : delete_snapshot( $path )
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##
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delete_snapshot() {
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btrfs subvolume delete --commit-after "$1"
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}
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##
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# exit cleanup handler
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##
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cleanup() {
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if is_btrfs "$src"; then
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umount -R "$backup_mountdir"
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for vol in $list_of_btrfs_submounts; do
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delete_snapshot "$vol/$snapshotdir"
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done
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rmdir "$backup_mountdir"
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fi
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}
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trap cleanup EXIT
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# Dump databases to /root/backup-{postgres,mysql} before taking a btrfs snapshot
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if systemctl is-active postgresql; then
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/usr/local/bin/backup-postgres.sh
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fi
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if systemctl is-active mariadb; then
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/usr/local/bin/backup-mysql.sh
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fi
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if is_btrfs "$src"; then
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# List all btrfs submounts we want to backup, e.g. homedir.archlinux.org with "/ /home"
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list_of_btrfs_submounts=$(findmnt -Rl -o target,fstype,options / | grep btrfs | grep -v docker | grep -v "subvol=\/[[:alnum:]]" | cut -d ' ' -f1)
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if [[ -d "$backup_mountdir" ]]; then
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if [[ $(findmnt -M "$backup_mountdir") ]]; then
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umount -R "$backup_mountdir"
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fi
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rmdir "$backup_mountdir"
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fi
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mkdir "$backup_mountdir"
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for vol in $list_of_btrfs_submounts; do
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if [[ -d "$vol/$snapshotdir" ]]; then
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delete_snapshot "$vol/$snapshotdir"
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fi
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btrfs subvolume snapshot -r "$vol" "$vol/$snapshotdir"
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mount -o bind "$vol/$snapshotdir" "$backup_mountdir/$vol"
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done
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else
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backup_mountdir="$src"
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fi
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{{ item['borg_cmd'] }} create -v --stats -C zstd \
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-e /proc \
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-e /sys \
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-e /dev \
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-e /run \
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-e /tmp \
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-e /var/cache \
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-e /var/lib/archbuild \
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-e /var/lib/archbuilddest \
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-e /var/lib/docker \
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-e "$backup_mountdir/proc" \
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-e "$backup_mountdir/sys" \
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-e "$backup_mountdir/dev" \
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-e "$backup_mountdir/run" \
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-e "$backup_mountdir/tmp" \
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-e "$backup_mountdir/var/cache" \
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-e "$backup_mountdir/var/lib/archbuild" \
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-e "$backup_mountdir/var/lib/archbuilddest" \
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-e "$backup_mountdir/var/lib/docker" \
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{{ item['host'] }}/{{ item['dir'] }}::$(date "+%Y%m%d-%H%M%S") "$backup_mountdir"
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{{ item['borg_cmd'] }} prune -v {{ item['host'] }}/{{ item['dir'] }} --keep-daily=7 --keep-weekly=4 --keep-monthly=6
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{{ item['borg_cmd'] }} compact -v {{ item['host'] }}/{{ item['dir'] }}
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