backups: do backup rotation ourselves instead of relying on zfs-auto-snapshot

bundles/backup-client/files/generate-backup

@@ -3,8 +3,10 @@
 statusfile=/var/tmp/backup.monitoring
 ssh_login="${username}@${server}"
 ssh_cmnd="ssh -o IdentityFile=/etc/backup.priv -o StrictHostKeyChecking=accept-new -p ${port}"
+nodename="${node.name}"
 
 <%text>
+[[ -n "$DEBUG" ]] && set -x
 NL=$'\n'
 
 if ! [[ -f /etc/backup.priv ]]
@@ -59,6 +61,8 @@ do_backup() {
 }
 
 rsync_errors=""
+
+$ssh_cmnd $ssh_login "sudo /usr/local/bin/rotate-single-backup-client $nodename"
 </%text>
 
 % for path in sorted(paths):