use fqdn

playbooks/roles/borg/tasks/main.yml

@@ -27,3 +27,10 @@
     borgmatic_hooks:
       after_backup:
         - "curl -d '{{ inventory_hostname }}' {{ backup_topic }}"
+
+- name: set archive format to use fqdn
+  ansible.builtin.replace:
+    path: /etc/borgmatic/config.yaml
+    regexp: 'archive_name_format:.*$'
+    replace: "archive_name_format: '{fqdn}-{now:%Y-%m-%d-%H%M%S}'"
+    backup: yes