88 lines
4.1 KiB
PowerShell
88 lines
4.1 KiB
PowerShell
# Script to backup the entire Postgres Docker volume
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$timestamp = Get-Date -Format "yyyy-MM-dd_HH-mm-ss"
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$scriptDir = Split-Path -Parent $MyInvocation.MyCommand.Path
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$backupDir = Join-Path $scriptDir "backups"
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$volumeName = "gitea-docker_postgres-data"
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$backupFile = "postgres-volume-backup-$timestamp.tar"
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$backupFilePath = Join-Path $backupDir $backupFile
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$redundantBackupDir = "D:\Pr00jects\gitea-docker"
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$logFile = Join-Path $backupDir "volume-backup-log.txt"
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$currentDir = Get-Location
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# Ensure backup directory exists
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if (-not (Test-Path $backupDir)) {
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New-Item -ItemType Directory -Path $backupDir
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}
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# Ensure redundant backup directory exists
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if (-not (Test-Path $redundantBackupDir)) {
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try {
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New-Item -ItemType Directory -Path $redundantBackupDir -Force
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} catch {
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Add-Content -Path $logFile -Value "[$timestamp] Warning: Could not create redundant backup directory at $redundantBackupDir. Error: $_"
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}
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}
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# Log start of backup
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Add-Content -Path $logFile -Value "[$timestamp] Starting volume backup for $volumeName..."
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# Check if volume exists
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$volumeExists = docker volume ls --format "{{.Name}}" | Select-String -Pattern "^$volumeName$"
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if (-not $volumeExists) {
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Write-Host "Volume $volumeName not found!" -ForegroundColor Red
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Add-Content -Path $logFile -Value "[$timestamp] Error: Volume $volumeName not found!"
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exit 1
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}
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# Create a temporary container to access the volume
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Write-Host "Creating backup of Docker volume $volumeName..."
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Add-Content -Path $logFile -Value "[$timestamp] Creating backup to $backupFilePath..."
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# Change to backup directory and use simple relative paths for Docker
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Set-Location -Path $backupDir
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docker run --rm -v ${volumeName}:/volume -v ${PWD}:/backup alpine tar -cf /backup/$backupFile -C /volume ./
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# Restore original directory
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Set-Location -Path $currentDir
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# Check if backup was successful
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if ($LASTEXITCODE -eq 0 -and (Test-Path $backupFilePath) -and (Get-Item $backupFilePath).Length -gt 0) {
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Write-Host "Volume backup completed successfully to $backupFilePath!" -ForegroundColor Green
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Add-Content -Path $logFile -Value "[$timestamp] Volume backup completed successfully!"
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# Optional: Compress the backup file
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Write-Host "Compressing backup file..."
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Add-Content -Path $logFile -Value "[$timestamp] Compressing backup file..."
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$zipFileName = "$backupFilePath.zip"
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Compress-Archive -Path $backupFilePath -DestinationPath $zipFileName -Force
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Remove-Item $backupFilePath
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Write-Host "Backup compressed to $zipFileName" -ForegroundColor Green
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Add-Content -Path $logFile -Value "[$timestamp] Backup compressed to $zipFileName"
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# Copy backup to redundant location
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if (Test-Path $redundantBackupDir) {
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try {
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$redundantBackupFile = Join-Path $redundantBackupDir (Split-Path -Leaf $zipFileName)
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Copy-Item -Path $zipFileName -Destination $redundantBackupFile -Force
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Write-Host "Backup copied to redundant location: $redundantBackupFile" -ForegroundColor Green
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Add-Content -Path $logFile -Value "[$timestamp] Backup copied to redundant location: $redundantBackupFile"
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} catch {
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Write-Host "Error copying backup to redundant location: $_" -ForegroundColor Red
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Add-Content -Path $logFile -Value "[$timestamp] Error copying backup to redundant location: $_"
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}
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} else {
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Write-Host "Warning: Redundant backup directory not found: $redundantBackupDir" -ForegroundColor Yellow
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Add-Content -Path $logFile -Value "[$timestamp] Warning: Redundant backup directory not found: $redundantBackupDir"
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}
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} else {
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Write-Host "Volume backup failed!" -ForegroundColor Red
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Add-Content -Path $logFile -Value "[$timestamp] Volume backup failed!"
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}
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# Optional: Clean up old volume backups (keep last 5)
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$oldBackups = Get-ChildItem -Path $backupDir -Filter "postgres-volume-backup-*.zip" | Sort-Object LastWriteTime -Descending | Select-Object -Skip 5
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foreach ($backup in $oldBackups) {
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Remove-Item $backup.FullName
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Write-Host "Removed old volume backup: $($backup.Name)"
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Add-Content -Path $logFile -Value "[$timestamp] Removed old volume backup: $($backup.Name)"
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} |