Clean up variable organization (wip), better backup/node_exporter for mii, aya01, pi

Signed-off-by: TuDatTr <tuan-dat.tran@tudattr.dev>

README.md

@@ -7,6 +7,14 @@ Don't forget to set a password for the new user with `passwd tudattr`
 ## Backups
 Backup for aya01 and raspberry are in a backblaze b2, which gets encrypted on the clientside by rclone.
 but first of all we need to create the buckets and provide ansible with the needed information.
+
+When creating your own rclone config the `password` and `password2` entries have to be passed though `rclone obscure` like this:
+
+``` sh
+echo "$PASSWORD" | rclone obscure -
+```
+
+`
 ## Vault
 - Create vault with: `ansible-vault create secrets.yml`
 - Create entry in vault with: `ansible-vault edit secrets.yml`