Draft: Resolve "backup all installed apps and system"

Closes #25 (closed)

defaults/main.yml

@@ -63,11 +63,13 @@ ynh_apps: null
   #       owner: ttrss # Only provide if different from app name
   #       group: ttrss # Only provide if different from www-data
 
-# Variables for backup
-# ynh_backup:
-#   directory: "/data/backup"
-#   scheduled: "true"
-#   scheduled_hour: 3
-#   scheduled_minute: "*"
-#   scheduled_weekday: "*"
-#   scheduled_month: "*"
+# Variables for apps backup
+ynh_apps_backup:
+  scheduled: False
+  # directory: "/data/backup"
+  # scheduled_hour: 3
+  # scheduled_minute: "0"
+  # scheduled_weekday: "*"
+  # scheduled_month: "*"
+  # src_script: "templates/ynh_apps_backup.sh.j2"
+  # dest_script: "/usr/local/bin/"