add export service

templates/backup-export.j2

@@ -0,0 +1,21 @@
+#!/bin/bash
+set -euo pipefail
+
+echo "Starting to export backups..."
+
+{% if backup_backend == 'restic' %}
+# restic backend
+source /etc/backup-client/restic.env
+
+{% for i in backups.export.destinations if i.type == "rsync" %}
+echo "exporting to {{ i.host }}"
+rsync -h -r -a --append-verify --delete --stats  -e "ssh -p {{ i.port|d(22) }} -i {{ i.key|d('/etc/backup-client/id_ed25519') }}" "${RESTIC_REPOSITORY}/" "{{ i.user }}@{{ i.host }}:{{ i.remotepath }}"
+{% endfor %}
+
+{% endif %}
+
+{% if not backup_backend %}
+echo "Noop, backup is handled external"
+{% endif %}
+
+echo "done!"

templates/backup-export.service.j2

@@ -0,0 +1,10 @@
+[Unit]
+Description=Export backups to an external host
+OnFailure=status-email-root@%n.service
+
+[Service]
+Nice=19
+IOSchedulingClass=idle
+Type=simple
+ExecStart=/usr/local/bin/backup-export
+