Don't exit VM backup scripts immediately on failures

site-cookbooks/kosmos_kvm/files/backup_vm.sh

@@ -1,7 +1,6 @@
 #!/bin/bash
 # GENERATED BY CHEF
 # DO NOT EDIT
-set -e
 
 REPOSITORY=$BORG_REPO
 
@@ -18,6 +17,7 @@ virsh snapshot-create-as --domain $1  \
         --disk-only           \
         --diskspec vda,snapshot=external
 
+# TODO report failures
 borg create -v $REPOSITORY::$1_$(date +%F_%H-%M) \
         /var/lib/libvirt/images/$1.qcow2  \
         /root/backups/vm_meta/$1.xml