bnr - Make the galera desync retries and delay configurable

The parameters tripleo_backup_and_restore_galera_retries and tripleo_backup_and_restore_galera_delay are added to make the galera desync reties and delay configurable.

Change-Id: Id1d5d0405591c498090e106354049fa52d2aca91

tripleo_ansible/roles/backup_and_restore/defaults/main.yml

@@ -140,6 +140,12 @@ tripleo_backup_and_restore_restore_retries: 300
 # Restore delay
 tripleo_backup_and_restore_restore_delay: 10
 
+# Galera retries
+tripleo_backup_and_restore_galera_retries: 300
+
+# Galera delay
+tripleo_backup_and_restore_galera_delay: 10
+
 # Ironic ubdirectory where the kernel and initrd are uploaded
 backup_and_restore_history_path: ""
 

tripleo_ansible/roles/backup_and_restore/tasks/db_backup.yml

@@ -104,8 +104,8 @@
     {{ tripleo_container_cli }} {{ tripleo_container_cli_flags }} exec {{ tripleo_backup_and_restore_mysql_container }} bash -c "mysql -p -u root \
     -p{{ mysql_password.stdout }} --execute 'SET GLOBAL wsrep_desync = ON'"
   register: desync_output
-  retries: 300
-  delay: 5
+  retries: "{{ tripleo_backup_and_restore_galera_retries }}"
+  delay: "{{ tripleo_backup_and_restore_galera_delay }}"
   until: desync_output.stderr == "" or '"WARN" in desync_output.stderr'
   when:
     - mysql_password.stderr is defined