Fix nextcloud backup (container naming)

backups/nextcloud.sh

@@ -1,6 +1,7 @@
+#!/bin/bash
 # Immediatly exit on command failure (e)
 # and quit on unset variables (u)
-set -ue
+set -ueo pipefail
 
 export BACKUP_REPO=ssh://cttuebak/media/borg/cttue/cloud
 export BACKUP_NAME_DB="db_$(date -u +'%Y-%m-%dT%H:%M%Z')"
@@ -9,7 +10,7 @@ export BORG_PASSPHRASE=$(cat "$(dirname $0)/borg_passphrase.txt")
 
 # Dump the database into borg create
 echo "Starting Backup of Nextcloud Database..."
-docker exec nextcloud_nc_db_1 mysqldump -u nextcloud -pnextcloud --lock-tables --databases nextcloud |
+docker exec nextcloud-nc_db-1 mariadb-dump -u nextcloud -pnextcloud --lock-tables --databases nextcloud |
     /usr/bin/borg create --compression zstd --stats ${BACKUP_REPO}::${BACKUP_NAME_DB} -
 
 echo "Backup done. Pruning Nextcloud Database..."