change: add verbosity to backup task

templates/backup.yaml.j2

@@ -28,13 +28,14 @@ services:
       - public
     command: >
       /bin/ash -c "
-      echo \"info: dumping '$$PGDATABASE' into '$$SRC/$$PGDATABASE.pgdump'...\"
+      echo \"info: backup started on $$(date -Iseconds)\"
+      && echo \"info: dumping '$$PGDATABASE' into '$$SRC/$$PGDATABASE.pgdump'...\"
       && pg_dump --no-owner --format c --file $$SRC/$$PGDATABASE.pgdump
       && echo \"info: backuping '$$SRC' to '$$DST'...\"
       && duplicity backup --full-if-older-than 6D $$SRC $$DST
       && echo \"info: removing all but 5 full backups in '$$DST'\"
       && duplicity remove-all-but-n-full 5 --force $$DST
-      && echo \"info: done\""
+      && echo \"info: backup done\""
 
 networks:
   {{ template_odoo_instance.key }}_default: