fix db backup and restore

compose.yml

@@ -58,7 +58,7 @@ services:
         - "coop-cloud.${STACK_NAME}.timeout=${TIMEOUT:-120}"
         - "backupbot.backup=true"
         - "backupbot.backup.path=/var/www/html"
-        - "coop-cloud.${STACK_NAME}.version=2.5.0+6.3.0"
+        - "coop-cloud.${STACK_NAME}.version=2.5.1+6.3.0"
 
   db:
     image: "mariadb:11.0"
@@ -77,10 +77,11 @@ services:
     deploy:
       labels:
         backupbot.backup: "true"
-        backupbot.backup.pre-hook: "mariadb-dump --single-transaction -u root -p\"$$(cat /run/secrets/db_root_password)\" wordpress | gzip > /var/lib/mysql/dump.sql.gz"
+        backupbot.backup.pre-hook: "sh -c 'mariadb-dump --single-transaction -u root -p\"$$(cat /run/secrets/db_root_password)\" wordpress | gzip > /var/lib/mysql/dump.sql.gz'"
+        backupbot.backup.path: "/var/lib/mysql/dump.sql.gz"
         backupbot.backup.post-hook: "rm -f /var/lib/mysql/dump.sql.gz"
         backupbot.restore: "true"
-        backupbot.restore.post-hook: "sh -c 'mysql -u root -p\"$$(cat /run/secrets/db_root_password)\" wordpress < /var/lib/mysql/dbdump.sql && rm -f /var/lib/mysql/dbdump.sql'"
+        backupbot.restore.post-hook: "sh -c 'gzip -d /var/lib/mysql/dump.sql.gz && mariadb -u root -p\"$$(cat /run/secrets/db_root_password)\" wordpress < /var/lib/mysql/dump.sql && rm -f /var/lib/mysql/dump.sql'"
 
 networks:
   backend: