Use root account for database

dump_db.sh

@@ -18,7 +18,7 @@ umask 077
 CONTAINER="${DOCKER_CONTAINER_NAME:-mariadb}"
 
 PASSWORD_FILE="${PASSWORD_FILE:-/root/.mariadb-backup.pw}"
-DB_USER="${DB_USER:-backup}"
+DB_USER="${DB_USER:-root}"
 
 SCRIPT_DIR="$(cd "$(dirname "$(readlink -f "$0")")" && pwd)"
 DUMP_DIR="${DUMP_DIR:-dump}"
@@ -31,7 +31,10 @@ EXCLUDED_SCHEMAS="'information_schema','mysql','performance_schema','sys'"
 
 # =================================================================
 
-die()  { echo "ERROR: $*" >&2; exit 1; }
+die() {
+  echo "ERROR: $*" >&2
+  exit 1
+}
 warn() { echo "WARNING: $*" >&2; }
 
 cleanup() { rm -rf "$STAGING"; }
@@ -41,8 +44,8 @@ trap cleanup EXIT
 
 command -v docker >/dev/null 2>&1 || die "docker not found in PATH"
 
-[[ "$(docker inspect -f '{{.State.Running}}' "$CONTAINER" 2>/dev/null || echo false)" == "true" ]] \
-    || die "container '$CONTAINER' is not running"
+[[ "$(docker inspect -f '{{.State.Running}}' "$CONTAINER" 2>/dev/null || echo false)" == "true" ]] ||
+  die "container '$CONTAINER' is not running"
 
 if [[ -n "${MYSQL_ROOT_PASSWORD:-}" ]]; then
   DB_PASS="$MYSQL_ROOT_PASSWORD"
@@ -54,10 +57,12 @@ fi
 
 # Detect client binaries (MariaDB 11+ renamed them; MySQL keeps mysql/*).
 if docker exec "$CONTAINER" sh -c 'command -v mariadb-dump' >/dev/null 2>&1; then
-    CLIENT=mariadb; DUMPER=mariadb-dump
+  CLIENT=mariadb
+  DUMPER=mariadb-dump
   CLIENT_BIN="mariadb"
 else
-    CLIENT=mysql;   DUMPER=mysqldump
+  CLIENT=mysql
+  DUMPER=mysqldump
   CLIENT_BIN="mysql"
 fi
 
@@ -123,8 +128,8 @@ dump_users_and_grants() {
     log "[dump] using mysqldump --users (MySQL 8.0.31+ style)"
     db_exec "$DUMPER" -u "$DB_USER" --users \
       >"$out" 2>/dev/null
-    elif docker exec "$CONTAINER" sh -c "command -v mariadb-dump" >/dev/null 2>&1 \
-         && docker exec "$CONTAINER" mariadb-dump --help 2>&1 | grep -q -- '  --system '; then
+  elif docker exec "$CONTAINER" sh -c "command -v mariadb-dump" >/dev/null 2>&1 &&
+    docker exec "$CONTAINER" mariadb-dump --help 2>&1 | grep -q -- '  --system '; then
     # MariaDB: --system=users
     log "[dump] using mariadb-dump --system=users"
     db_exec "$DUMPER" -u "$DB_USER" --system=users \
@@ -146,7 +151,10 @@ failed=()
 
 verify_dump() {
   local f="$1"
-    [[ -s "$f" ]] || { warn "$(basename "$f"): empty"; return 1; }
+  [[ -s "$f" ]] || {
+    warn "$(basename "$f"): empty"
+    return 1
+  }
   # mysqldump ends with "-- Dump completed on ..."; mysqlpump ends similarly.
   # For the mysql-schema fallback, just check non-empty (it has no marker).
   if grep -q '^-- Dump completed' "$f" 2>/dev/null; then