49 lines
1.4 KiB
Bash
49 lines
1.4 KiB
Bash
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#!/usr/bin/env bash
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set -euo pipefail
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# Dify docker backup script
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# 备份内容：
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# 1) Postgres 数据库 dify
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# 2) 整个 volumes/ 目录（包括插件、向量库等数据）
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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cd "$SCRIPT_DIR"
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BACKUP_DIR="$SCRIPT_DIR/backups"
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TIMESTAMP="$(date +%Y%m%d_%H%M%S)"
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DB_FILE="$BACKUP_DIR/dify_db_${TIMESTAMP}.sql"
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VOL_FILE="$BACKUP_DIR/dify_volumes_${TIMESTAMP}.tar.gz"
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mkdir -p "$BACKUP_DIR"
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DB_USER="${POSTGRES_USER:-postgres}"
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DB_NAME="${POSTGRES_DB:-dify}"
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# 自动检测 db_postgres 容器名，匹配形如 "<project>-db_postgres-1"
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DB_CONTAINER="${DB_CONTAINER:-}"
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if [ -z "$DB_CONTAINER" ]; then
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DB_CONTAINER="$(docker ps --format '{{.Names}}' | grep 'db_postgres-1$' | head -n1 || true)"
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fi
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if [ -z "$DB_CONTAINER" ]; then
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echo "错误：未找到名称类似 '*-db_postgres-1' 的运行中容器，请确认 db_postgres 服务已启动。" >&2
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exit 1
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fi
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echo "[1/2] 导出 Postgres 数据库 ${DB_NAME} (容器: ${DB_CONTAINER}) ..."
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docker exec -t "${DB_CONTAINER}" \
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pg_dump -U "${DB_USER}" -d "${DB_NAME}" > "${DB_FILE}"
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echo "数据库已备份到: ${DB_FILE}"
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echo "[2/2] 打包 volumes/ 目录 ..."
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if [ ! -d "volumes" ]; then
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echo "警告：当前目录下不存在 volumes/ 目录，跳过卷备份。" >&2
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else
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tar czf "${VOL_FILE}" volumes/
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echo "卷数据已打包到: ${VOL_FILE}"
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fi
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echo "备份完成。"
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