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37 lines
947 B
Bash
37 lines
947 B
Bash
#!/bin/bash
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errors=0
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run-parts --exit-on-error -- /etc/zfs-snapshot-backup-pre.d || errors=1
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% for dataset in sorted(node.metadata.get('zfs/filesystems_with_backup_snapshots')):
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mountpoint="/mnt/backup-snapshot${node.metadata['zfs']['datasets'][dataset]['mountpoint']}"
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if findmnt "$mountpoint" >/dev/null
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then
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umount -R "$mountpoint" || errors=1
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fi
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if zfs get type "${dataset}@snapshot-backup" >/dev/null 2>&1
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then
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zfs destroy "${dataset}@snapshot-backup" || errors=1
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fi
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zfs snapshot "${dataset}@snapshot-backup" || errors=1
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mkdir -p "$mountpoint" || errors=1
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mount -t zfs "${dataset}@snapshot-backup" "$mountpoint" || errors=1
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% endfor
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run-parts --exit-on-error -- /etc/zfs-snapshot-backup-post.d || errors=1
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if (( errors ))
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then
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# We can't use 'set -e' in here, because this could result in services
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# not getting started, if they need to get stopped before creating a
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# consistent backup snapshot.
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exit 1
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fi
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