bundles/backup-{client,server}: introduce

bundles/backup-client/files/generate-backup

@@ -0,0 +1,31 @@
+#!/bin/bash
+
+statusfile=/var/tmp/backup.monitoring
+ssh_login="${username}@${server}"
+
+if ! [[ -f /etc/backup.priv ]]
+then
+    echo "abort_no_key" > "$statusfile"
+    exit 1
+fi
+
+rsync_errors=""
+% for path in sorted(paths):
+rsync -zaAP --numeric-ids --delete --relative \
+    --rsync-path="/usr/bin/rsync --fake-super" \
+    -e "ssh -o IdentityFile=/etc/backup.priv -o StrictHostKeyChecking=accept-new" \
+    "${path}" "$ssh_login":backups/
+
+exitcode=$?
+if (( exitcode != 0 )) && (( exitcode != 24 ))
+then
+    rsync_errors+=" $ret"
+fi
+% endfor
+
+if [[ -n "$rsync_errors" ]]
+then
+    echo "rsync_error$rsync_errors" > "$statusfile"
+fi
+
+echo "ok" > "$statusfile"