Db backup Script

scripts/backup-db.sh

@@ -0,0 +1,30 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+BACKUP_DIR="${BACKUP_DIR:-$ROOT_DIR/backups}"
+DB_SERVICE="${DB_SERVICE:-db}"
+DB_NAME="${DB_NAME:-resource_manager}"
+DB_USER="${DB_USER:-resman}"
+DB_PASSWORD="${DB_PASSWORD:-resmanpass}"
+KEEP_DAYS="${KEEP_DAYS:-30}"
+TIMESTAMP="$(date +%Y%m%d-%H%M%S)"
+BACKUP_FILE="$BACKUP_DIR/${DB_NAME}-${TIMESTAMP}.sql"
+
+mkdir -p "$BACKUP_DIR"
+
+cd "$ROOT_DIR"
+
+echo "Creating database backup: $BACKUP_FILE"
+
+docker compose exec -T "$DB_SERVICE" sh -c \
+  "MARIADB_PWD='$DB_PASSWORD' mariadb-dump --single-transaction --quick --routines --triggers -u '$DB_USER' '$DB_NAME'" \
+  > "$BACKUP_FILE"
+
+gzip "$BACKUP_FILE"
+
+if [[ "$KEEP_DAYS" =~ ^[0-9]+$ ]] && [[ "$KEEP_DAYS" -gt 0 ]]; then
+  find "$BACKUP_DIR" -name "${DB_NAME}-*.sql.gz" -type f -mtime +"$KEEP_DAYS" -delete
+fi
+
+echo "Backup finished: ${BACKUP_FILE}.gz"