Image-based backup
Assuming you have a running container identified by $CTID. The following needs to be done:
# Known snapshot ID ID=$(uuidgen) VE_PRIVATE=$(VEID=$CTID; source /etc/vz/vz.conf; source /etc/vz/conf/$CTID.conf; echo $VE_PRIVATE) # Take a snapshot without suspending a CT and saving its config vzctl snapshot $CTID --id $ID --skip-suspend --skip-config # Perform a backup using your favorite backup tool # (cp is just an example) cp $VE_PRIVATE/root.hdd/* /backup/destination # Delete (merge) the snapshot vzctl snapshot-delete $CTID --id $ID
File-based backup
Assuming you have a running container identified by $CTID. The following needs to be done:
# Known snapshot ID ID=$(uuidgen) # Directory used to mount a snapshot MNTDIR=./mnt mkdir $MNTDIR # Take a snapshot without suspending a CT and saving its config vzctl snapshot $CTID --id $ID --skip-suspend --skip-config # Mount the snapshot taken vzctl snapshot-mount $CTID --id $ID --target $MNTDIR # Perform a backup using your favorite backup tool # (tar is just an example) tar cf backup.tar.xz $MNTDIR # Unmount the snapshot vzctl snapshot-umount $CTID --id $ID # Delete (merge) the snapshot vzctl snapshot-delete $CTID --id $ID