初始化提交
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#!/bin/sh
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# PostgreSQL 备份脚本:pg_dump 导出 + gzip 压缩 + 按天清理过期备份。
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# 通过 infra.yml 的 hunjing-pg-backup 服务运行(profile: backup):
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# docker compose -f docker/docker-compose.infra.yml --profile backup run --rm hunjing-pg-backup
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# 备份产物落在项目根 backups/ 目录(已加入 .gitignore)。
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set -eu
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PGDATABASE="${PGDATABASE:-hunjing}"
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PGHOST="${PGHOST:-hunjing-postgres}"
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PGPORT="${PGPORT:-5432}"
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mkdir -p /backups
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TS=$(date +%Y%m%d-%H%M%S)
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OUT="/backups/${PGDATABASE}-${TS}.sql.gz"
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echo "[backup] 导出 ${PGDATABASE}@${PGHOST}:${PGPORT} -> ${OUT}"
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pg_dump --no-owner --no-privileges | gzip > "$OUT"
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# 清理过期备份
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retain="${BACKUP_RETAIN_DAYS:-7}"
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echo "[backup] 清理 ${retain} 天前的备份"
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find /backups -name '*.sql.gz' -type f -mtime +"$retain" -delete 2>/dev/null || true
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echo "[backup] 完成。当前备份列表:"
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ls -lh /backups 2>/dev/null || true
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Executable
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#!/bin/sh
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# PostgreSQL 恢复脚本:从指定备份文件恢复到数据库(覆盖现有数据)。
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# 通过 infra.yml 的 hunjing-pg-backup 服务运行,需覆盖 entrypoint 并传入 RESTORE_FILE:
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# docker compose -f docker/docker-compose.infra.yml --profile backup run --rm \
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# -e RESTORE_FILE=hunjing-20260620-000000.sql.gz \
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# --entrypoint /bin/sh hunjing-pg-backup /backup/backup-restore.sh
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set -eu
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PGDATABASE="${PGDATABASE:-hunjing}"
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file="${RESTORE_FILE:-}"
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if [ -z "$file" ]; then
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echo "[restore] 请通过 RESTORE_FILE 指定备份文件名,例如:"
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echo " -e RESTORE_FILE=${PGDATABASE}-20260620-000000.sql.gz"
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echo "[restore] 可用备份:"
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ls -1 /backups/*.sql.gz 2>/dev/null | sed 's|.*/||' || echo " (无)"
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exit 1
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fi
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target="/backups/$file"
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if [ ! -f "$target" ]; then
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echo "[restore] 备份文件不存在: $target"
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exit 1
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fi
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echo "[restore] 从 $file 恢复到 ${PGDATABASE}@${PGHOST:-hunjing-postgres}:${PGPORT:-5432}"
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echo "[restore] ⚠️ 将覆盖现有数据,5 秒后开始(Ctrl+C 取消)"
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sleep 5
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gunzip -c "$target" | psql -v ON_ERROR_STOP=1
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echo "[restore] 完成"
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