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168 lines
5.5 KiB
PowerShell
168 lines
5.5 KiB
PowerShell
# ============================================
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# 系统恢复脚本 (PowerShell)
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# ============================================
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# 功能：
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# - 从指定的完整备份目录恢复数据库和文件存储
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# - 恢复前先执行一次完整备份作为 "before-restore" 快照
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# 使用：
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# .\scripts\restore.ps1 -BackupDir ".\backups\full\20251218-120000"
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# ============================================
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param(
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[Parameter(Mandatory = $true)]
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[string]$BackupDir
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)
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$ErrorActionPreference = "Stop"
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$databaseDir = Join-Path $BackupDir "database"
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$filesDir = Join-Path $BackupDir "files"
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if (-not (Test-Path $databaseDir) -or -not (Test-Path $filesDir)) {
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Write-Host "错误：$BackupDir 下未找到 database/ 或 files/ 子目录。" -ForegroundColor Red
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exit 1
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}
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Write-Host "========================================"
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Write-Host " 系统恢复脚本"
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Write-Host "========================================"
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Write-Host "目标备份目录: $BackupDir"
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Write-Host "警告：该操作会覆盖当前数据库和文件存储，请确保在测试环境中执行。" -ForegroundColor Yellow
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Write-Host "========================================"
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$confirm = Read-Host "确认继续恢复？(yes/[no])"
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if ($confirm -ne "yes") {
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Write-Host "已取消恢复操作。"
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exit 0
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}
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# 0. 恢复前先做一次完整备份
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Write-Host "`n[步骤 0] 恢复前备份当前系统..."
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& .\scripts\backup-all.ps1 -BackupRoot ".\backups\before-restore" || `
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Write-Host "恢复前备份失败（已记录），继续尝试恢复..." -ForegroundColor Yellow
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# 1. 恢复数据库
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Write-Host "`n[步骤 1] 恢复数据库..."
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# 加载当前 .env 中的 DATABASE_URL
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if (Test-Path ".env") {
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Get-Content .env | ForEach-Object {
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if ($_ -match '^([^#][^=]+)=(.*)$') {
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$name = $matches[1].Trim()
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$value = $matches[2].Trim()
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[Environment]::SetEnvironmentVariable($name, $value, "Process")
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}
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}
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}
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$databaseUrl = $env:DATABASE_URL
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if (-not $databaseUrl) {
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Write-Host "错误：未在当前环境或 .env 中找到 DATABASE_URL，无法恢复数据库。" -ForegroundColor Red
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exit 1
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}
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$dbBackup = Get-ChildItem -Path $databaseDir -Filter "db-backup-*.sql.gz" -ErrorAction SilentlyContinue |
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Sort-Object LastWriteTime -Descending |
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Select-Object -First 1
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if (-not $dbBackup) {
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Write-Host "错误：在 $databaseDir 下未找到 db-backup-*.sql.gz 文件。" -ForegroundColor Red
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exit 1
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}
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Write-Host "使用备份文件: $($dbBackup.FullName)"
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# 解压到临时文件再用 psql 恢复
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$tempSql = Join-Path $databaseDir "restore-temp.sql"
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# 选择压缩工具
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$compressTool = $null
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if (Get-Command 7z -ErrorAction SilentlyContinue) {
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$compressTool = "7z"
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} elseif (Get-Command gzip -ErrorAction SilentlyContinue) {
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$compressTool = "gzip"
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}
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if (-not $compressTool) {
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Write-Host "错误：未找到解压工具（7z 或 gzip），无法恢复数据库。" -ForegroundColor Red
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exit 1
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}
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if ($compressTool -eq "7z") {
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& 7z x -so $dbBackup.FullName | Out-File -FilePath $tempSql -Encoding ASCII
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} else {
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& gzip -cd $dbBackup.FullName > $tempSql
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}
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if ($LASTEXITCODE -ne 0) {
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Write-Host "错误：解压数据库备份失败。" -ForegroundColor Red
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if (Test-Path $tempSql) { Remove-Item $tempSql -Force }
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exit 1
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}
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# 使用 psql 和连接字符串恢复
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& psql $databaseUrl -f $tempSql
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if ($LASTEXITCODE -ne 0) {
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Write-Host "错误：数据库恢复失败。" -ForegroundColor Red
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if (Test-Path $tempSql) { Remove-Item $tempSql -Force }
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exit 1
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}
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if (Test-Path $tempSql) { Remove-Item $tempSql -Force }
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Write-Host "数据库恢复完成。" -ForegroundColor Green
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# 2. 恢复文件存储 (MinIO)
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Write-Host "`n[步骤 2] 恢复文件存储 (MinIO)..."
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$filesBackup = Get-ChildItem -Path $filesDir -Filter "files-backup-*.tar.gz" -ErrorAction SilentlyContinue |
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Sort-Object LastWriteTime -Descending |
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Select-Object -First 1
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if (-not $filesBackup) {
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Write-Host "错误：在 $filesDir 下未找到 files-backup-*.tar.gz 文件。" -ForegroundColor Red
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exit 1
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}
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Write-Host "使用备份文件: $($filesBackup.FullName)"
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$minioDataDir = $env:MINIO_DATA_DIR
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if (-not $minioDataDir) {
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$minioDataDir = ".\minio-data"
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}
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if (-not (Test-Path $minioDataDir)) {
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New-Item -ItemType Directory -Path $minioDataDir -Force | Out-Null
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}
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Write-Host "清空当前 MinIO 数据目录: $minioDataDir" -ForegroundColor Yellow
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Get-ChildItem -Path $minioDataDir -Force -ErrorAction SilentlyContinue | Remove-Item -Recurse -Force
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# 解压 tar.gz 到父目录
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$parentDir = Split-Path $minioDataDir -Parent
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# 选择解压命令
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if (Get-Command tar -ErrorAction SilentlyContinue) {
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& tar -xzf $filesBackup.FullName -C $parentDir
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} elseif (Get-Command 7z -ErrorAction SilentlyContinue) {
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& 7z x $filesBackup.FullName -o$parentDir -y | Out-Null
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} else {
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Write-Host "错误：未找到解压工具（tar 或 7z），无法恢复文件存储。" -ForegroundColor Red
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exit 1
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}
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if ($LASTEXITCODE -ne 0) {
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Write-Host "错误：文件存储恢复失败。" -ForegroundColor Red
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exit 1
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}
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Write-Host "文件存储恢复完成。" -ForegroundColor Green
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Write-Host "`n========================================"
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Write-Host " 🎉 系统恢复完成 (基础版本)" -ForegroundColor Green
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Write-Host "========================================"
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Write-Host "来源备份: $BackupDir"
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Write-Host "恢复前快照目录: .\backups\before-restore"
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Write-Host "========================================"
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