Set up systemd service and timer for backups

site-cookbooks/kosmos_kvm/recipes/backup.rb

@@ -54,3 +54,39 @@ template "/root/backups/backup_all_vms.sh" do
   mode '0750'
   variables vm_domains: vm_domains
 end
+
+systemd_unit "backup-libvirt-guests.service" do
+  content({
+    Unit: {
+      Description: "Back up libvirt guest images and metadata",
+      Wants: "network.target"
+    },
+    Service: {
+      Type: "oneshot",
+      EnvironmentFile: "/root/.borg_credentials.env",
+      ExecStart: "/root/backups/backup_all_vms.sh",
+      SyslogIdentifier: "backup-libvirt-guests",
+      Restart: "no"
+    }
+  })
+  verify false
+  triggers_reload true
+  action [:create]
+end
+
+systemd_unit "backup-libvirt-guests.timer" do
+  content({
+    Unit: {
+      Description: "Back up libvirt guest images and metadata",
+    },
+    Timer: {
+      OnCalendar: node["kosmos_kvm"]["backup"]["schedule"]
+    },
+    Install: {
+      WantedBy: "timers.target"
+    }
+  })
+  verify false
+  triggers_reload true
+  action [:create, :enable, :start]
+end