50 lines
1.0 KiB
Bash
Executable File
50 lines
1.0 KiB
Bash
Executable File
#!/usr/bin/bash
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# Usage: borg_partclone_backup.sh VGNAME LVNAME SNP_SZ SRV_HOST SRV_BORG_REPO
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VGNAME=$1
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LVNAME=$2
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SNP_NM=$LVNAME-`date +%Y%m%dT%H%M%S`
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SNP_SZ=$3
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SRV_HOST=$4
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SRV_BORG_REPO=$5
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exitmsg () {
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echo $1 >&2;
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exit 1;
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}
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rmsnap () {
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# Remove the snapshot
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lvremove -y $VGNAME/$SNP_NM >/dev/null
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}
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exitmsg_rm () {
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rmsnap
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exitmsg $1
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}
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exit_ok () {
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rmsnap
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echo "Successful backup for $VGNAME/$LVNAME"
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exit 0
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}
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echo "Starting backup for $VGNAME/$LVNAME"
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# Be root
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test `id -u` == "0" || exitmsg "Run this script as root"
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# Create the snapshot
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lvcreate -y -n $SNP_NM -s -L $SNP_SZ $VGNAME/$LVNAME >/dev/null || exitmsg "Cannot create snapshot"
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# Check filesystem
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fsck -y /dev/$VGNAME/$SNP_NM || exitmsg_rm "Failed to check filesystem /dev/$VGNAME/$SNP_NM"
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# Clone
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partclone.ext4 -s /dev/$VGNAME/$SNP_NM -c -q >/dev/null 2>&1 | \
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BORG_UNKNOWN_UNENCRYPTED_REPO_ACCESS_IS_OK=yes \
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borg2 -r ssh://$SRV_HOST$SRV_BORG_REPO create --stdin-name image.pcl $SNP_NM - || exitmsg_rm "Backup failed for $SNP_NM"
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exit_ok
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