backup and restore maas snap

group_vars/all/20-database

@@ -25,6 +25,7 @@ maas_postgres_version_number: "{{ 14 if ansible_distribution_major_version | flo
 maas_postgres_replication_user: "replicator"
 maas_postgres_backup_dir: "/tmp/maas_backup/" 
 maas_postgres_backup_path: "{{ maas_postgres_backup_dir }}dump.sql.gz"
+maas_snap_backup_path: "{{ '' if maas_install_deb | bool else '/var/lib/maas/snap_backup' }}"
 maas_config_backup_path: "{{ '/etc/maas/' if maas_install_deb | bool else '' }}"
 maas_runtime_backup_path: "{{ '/var/lib/maas/' if maas_install_deb | bool else '' }}"
 maas_exclude_backup_path: "{{ '/var/lib/maas/boot-resources/' if maas_install_deb | bool else '' }}"

restore.yaml

@@ -31,6 +31,15 @@
   become: true
   gather_facts: true
 
+- hosts: maas_region_controller
+  tasks:
+    - name: Reset database triggers
+      ansible.builtin.command: maas-region dbupgrade
+      when: ('maas_region_controller' in group_names) and (not maas_install_deb | bool)
+      run_once: true
+  become: true
+  gather_facts: true
+
 - hosts:
     - maas_postgres
     - maas_region_controller

roles/common/tasks/backup.yaml

@@ -1,9 +1,27 @@
 ---
+- name: Stop MAAS snap
+  ansible.builtin.command: snap stop maas
+  when: (('maas_region_controller' in group_names) or ('maas_rack_controller' in group_names)) and (not maas_install_deb | bool)
+
+- name: Backup MAAS snap
+  ansible.builtin.command: snap save maas
+  register: snap_id
+  when: (('maas_region_controller' in group_names) or ('maas_rack_controller' in group_names)) and (not maas_install_deb | bool)
+
+- name: Verify snap backup valid
+  ansible.builtin.command: "snap check-snapshot {{ snap_id }}"
+  when: (('maas_region_controller' in group_names) or ('maas_rack_controller' in group_names)) and (not maas_install_deb | bool)
+
+- name: Export snap backup
+  ansible.builtin.command: "snap export-snapshot {{ snap_id }} {{ maas_snap_backup_path }}"
+  when: (('maas_region_controller' in group_names) or ('maas_rack_controller' in group_names)) and (not maas_install_deb | bool)
+
 - name: Generate List of Archiveable Directories
   ansible.builtin.set_fact:
     archive_list: "{{ archive_list | default([]) + [item] }}"
   loop:
     - "{{ maas_postgres_backup_dir if 'maas_postgres' in group_names else None }}"
+    - "{{ maas_snap_backup_path if (('maas_region_controller' in group_names) or ('maas_rack_controller' in group_names)) else None }}"
     - "{{ maas_config_backup_path if (('maas_region_controller' in group_names) or ('maas_rack_controller' in group_names)) else None }}"
     - "{{ maas_runtime_backup_path if (('maas_region_controller' in group_names) or ('maas_rack_controller' in group_names)) else None }}"
   when: item
@@ -30,3 +48,7 @@
     path: "{{ maas_backup_dest_path }}"
     state: absent
   when: archive_list is defined
+
+- name: Start MAAS snap
+  ansible.builtin.command: snap start maas
+  when: (('maas_region_controller' in group_names) or ('maas_rack_controller' in group_names)) and (not maas_install_deb | bool)

roles/common/tasks/restore.yaml

@@ -28,6 +28,15 @@
   ansible.builtin.command: snap stop maas
   when: (('maas_region_controller' in group_names) or ('maas_rack_controller' in group_names)) and (not maas_install_deb | bool)
 
+- name: Import snap data
+  ansible.builtin.command: "snap import-snapshot /tmp/maas_backup/{{ maas_snap_backup_path }}"
+  register: snap_id
+  when: (('maas_region_controller' in group_names) or ('maas_rack_controller' in group_names)) and (not maas_install_deb | bool)
+
+- name: Restore Snap data
+  ansible.builtin.command: "snap restore {{ snap_id }}"
+  when: (('maas_region_controller' in group_names) or ('maas_rack_controller' in group_names)) and (not maas_install_deb | bool)
+
 - name: Restore Config
   ansible.builtin.command: "mv /tmp/maas_backup/etc/maas {{ maas_restore_config_path }}"
   when: ('maas_region_controller' in group_names) or ('maas_rack_controller' in group_names)

roles/maas_postgres/tasks/restore.yaml

@@ -1,5 +1,5 @@
 ---
-- name: Restore database using the tar format
+- name: Restore database from file
   community.postgresql.postgresql_db:
     name: "{{ maas_postgres_database }}"
     state: restore