move to snapshots-based backups

ansible/roles/borg/backup.yml

@@ -0,0 +1,17 @@
+location:
+  source_directories:
+    - /mnt/thecloud
+  repositories:
+    - /mnt/backups/share
+retention:
+  keep_daily: 7
+  keep_weekly: 4
+  keep_monthly: 6
+hooks:
+  before_everything:
+    - virsh snapshot-create-as --domain tf-thecloud --name backup-thecloud --disk-only --quiesce --no-metadata --diskspec vda,snapshot=no --diskspec vdb,file=/kvm/snapshots/thecloud.qcow2
+    - guestmount -a /kvm/snapshots/thecloud.qcow2 -m /dev/sda1 --ro /mnt/thecloud
+  after_everything:
+    - guestunmount /mnt/thecloud && sleep 1
+    - virsh blockcommit tf-thecloud vdb --active --verbose --pivot
+    - rm /kvm/snapshots/thecloud.qcow2

ansible/roles/borg/files/start_vms.sh

@@ -1,3 +0,0 @@
-#!/bin/bash
-
-for i in $(virsh list --all --name --autostart); do virsh start "$i"; done

ansible/roles/borg/files/stop_vms.sh

@@ -1,9 +0,0 @@
-#!/bin/bash
-
-for i in $(virsh list --state-running --name --autostart); do
-	virsh shutdown "$i"
-	echo Stopping domain "$i"
-	until virsh domstate "$i" | grep shut; do
-		sleep 0.5
-	done
-done

ansible/roles/borg/tasks/main.yml

@@ -1,3 +1,13 @@
+- name: Create snapshots directory
+  file:
+    path: /kvm/snapshots
+    state: directory
+
+- name: Create backup mountpoint
+  file:
+    path: /mnt/thecloud
+    state: directory
+
 - name: Install Borg
   apt:
     pkg:
@@ -9,31 +19,19 @@
     name: apprise
 
 - name: Copy Borgmatic script
-  template:
-    src: "{{ role_path }}/templates/backup.yml.j2"
+  copy:
+    src: "{{ role_path }}/backup.yml"
     dest: /root/backup.yml
 
-- name: Copy start_vms.sh
-  copy:
-    src: "{{ role_path }}/files/start_vms.sh"
-    dest: /root/start_vms.sh
-    mode: preserve
-
-- name: Copy stop_vms.sh
-  copy:
-    src: "{{ role_path }}/files/stop_vms.sh"
-    dest: /root/stop_vms.sh
-    mode: preserve
-
 - name: Copy systemd backup unit
   copy:
-    src: "{{ role_path }}/files/backup.service"
+    src: "{{ role_path }}/backup.service"
     dest: /etc/systemd/system/backup.service
   notify: systemd daemon reload
 
 - name: Copy systemd backup timer
   copy:
-    src: "{{ role_path }}/files/backup.timer"
+    src: "{{ role_path }}/backup.timer"
     dest: /etc/systemd/system/backup.timer
   notify: systemd daemon reload
 

ansible/roles/borg/templates/backup.yml.j2

@@ -1,28 +0,0 @@
-# vi: ft=yaml
-location:
-  source_directories:
-    - /data
-  repositories:
-    - 'ssh://root@lewis.hyp/mnt/backups/hosts/{{ ansible_hostname }}'
-retention:
-  keep_daily: 7
-  keep_weekly: 4
-  keep_monthly: 6
-storage:
-  unknown_unencrypted_repo_access_is_ok: true
-  relocated_repo_access_is_ok: true
-hooks:
-  before_everything:
-    - 'apprise --body="{{ ansible_hostname }}: Stopping VMs" {{ apprise_url }} || true'
-    - /root/stop_vms.sh
-    - 'apprise --body="{{ ansible_hostname }}: Stopped VMs" {{ apprise_url }} || true'
-  after_everything:
-    - 'apprise --body="{{ ansible_hostname }}: Starting VMs" {{ apprise_url }} || true'
-    - /root/start_vms.sh
-    - 'apprise --body="{{ ansible_hostname }}: Started VMs" {{ apprise_url }} || true'
-  before_backup:
-    - 'apprise --body="{{ ansible_hostname }}: Performing backup" {{ apprise_url }} || true'
-  after_backup:
-    - 'apprise --body="{{ ansible_hostname }}: Backup done" {{ apprise_url }} || true'
-  on_error:
-    - 'apprise --body="{{ ansible_hostname }}: Backup error" {{ apprise_url }} || true'