26 lines
933 B
Bash
Executable File
26 lines
933 B
Bash
Executable File
#!/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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