[WIP] Remove Stretch and Percona support

tasks/replication/slave/import_data.yml

@@ -1,20 +1,19 @@
 ---
 
-# Doc: https://www.percona.com/doc/percona-xtrabackup/2.1/howtos/recipes_ibkx_gtid.html
 - name: WAIT_FOR | source data (prevent rsync bug) - TODO find another hack
   wait_for:
     host: "{{ mariadb_slave_import_from }}"
     port: 22
 
 - name: COMMAND | Prepare backup another server
-  command: innobackupex --no-timestamp {{ mariadb_backup_dir }}
+  command: mariabackup --backup {{ mariadb_backup_dir }}
   args:
     creates: "{{ mariadb_backup_dir }}"
   delegate_to: "{{ mariadb_slave_import_from }}"
   register: backup
 
 - name: SHELL | Dump
-  shell: "innobackupex --apply-log {{ mariadb_backup_dir }}"
+  shell: "mariabackup --prepare {{ mariadb_backup_dir }}"
   delegate_to: "{{ mariadb_slave_import_from }}"
   when: backup.changed