Restore-instance-with-backup.md

+We are using the [`backups_role`](https://github.com/coopdevs/backups_role/) to manage the backups in the OC instances. This role use Backblaze (B2) and Restic to encrypt and upload the backup.
+
+We must follow the next steps to restore a backup:
+
+## Download backup from B2
+To download the bucket we need to install and config the [`b2` command-line tool](https://www.backblaze.com/b2/docs/quick_command_line.html):
+1. Access to the server where you want to restore:
+
+```
+$ ssh <user>@<host>
+```
+
+2. Install `b2` with `pip`:
+
+```
+$ pip install b2
+```
+
+3. Configure `b2`:
+
+```
+$ b2 authorize-account [<applicationKeyId>] [<applicationKey>]
+```
+
+> You can find the `applicationKeyId` and the `applicationKey` in BW with the name `backblaze - <host>`.
+
+3. With the 
+
+Get our `applicationKeyId` and `applicationKe
+
+## Extract the snapshot with Restic
+
+## Restore backup
+
 1. Copy the backup into the server.
 
 2. Stop the OpenCell container:
@@ -12,13 +46,13 @@ $ docker stop opencell
 $ docker exec -ti postgres dropdb -U opencell opencell
 ```
 
-4. Create the new OpenCell db:
+4. Create the new OpenCell DB:
 
 ```
 $ docker exec -ti postgres createdb -U opencell opencell
 ```
 
-5. Restore the dump in the new db:
+5. Restore the dump in the new DB:
 
 ```
 $ cat <DUMP_FILE> | docker exec -i postgres psql -U opencell opencell
@@ -26,7 +60,7 @@ $ cat <DUMP_FILE> | docker exec -i postgres psql -U opencell opencell
 
 6. Restore the filesystem from the backup overriding the `opencelldata` folder.
 
-7. Up the opencell container:
+7. Up the OC container:
 
 ```
 $ docker-compose up -d