83 lines
2.8 KiB
PowerShell
83 lines
2.8 KiB
PowerShell
# 保存基础镜像到本地
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# 用于加速后续构建，避免每次从网络拉取
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param(
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[switch]$Force = $false # 强制重新下载，即使本地已存在
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)
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$ErrorActionPreference = "Stop"
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$baseImagesDir = Join-Path (Split-Path $PSScriptRoot -Parent) "base-images"
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$baseImagesDir = [System.IO.Path]::GetFullPath($baseImagesDir)
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# 需要保存的基础镜像列表
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# 包括 Dockerfile 和 docker-compose 中使用的所有基础镜像
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$baseImages = @(
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"alpine:3.18" # Dockerfile 基础镜像
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"redis:7-alpine" # docker-compose 中使用的 Redis 镜像
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# 可以根据需要添加更多基础镜像
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)
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Write-Host "========================================" -ForegroundColor Cyan
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Write-Host " 保存基础镜像到本地" -ForegroundColor Cyan
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Write-Host "========================================" -ForegroundColor Cyan
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Write-Host ""
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Write-Host "目标目录: $baseImagesDir" -ForegroundColor Yellow
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Write-Host ""
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# 创建目录
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if (-not (Test-Path $baseImagesDir)) {
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New-Item -ItemType Directory -Path $baseImagesDir -Force | Out-Null
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Write-Host "已创建目录: $baseImagesDir" -ForegroundColor Green
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}
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$savedCount = 0
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$skippedCount = 0
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foreach ($image in $baseImages) {
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$imageName = $image -replace ':', '-'
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$tarPath = Join-Path $baseImagesDir "${imageName}.tar"
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Write-Host "处理镜像: $image" -ForegroundColor Cyan
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# 检查本地是否已存在
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if ((Test-Path $tarPath) -and -not $Force) {
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Write-Host " ✓ 本地已存在，跳过: $tarPath" -ForegroundColor Gray
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$skippedCount++
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continue
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}
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# 拉取镜像
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Write-Host " 正在拉取镜像..." -ForegroundColor Yellow
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docker pull $image
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if ($LASTEXITCODE -ne 0) {
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Write-Host " ✗ 拉取失败: $image" -ForegroundColor Red
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continue
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}
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# 保存镜像到 tar 文件
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Write-Host " 正在保存到: $tarPath" -ForegroundColor Yellow
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docker save -o $tarPath $image
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if ($LASTEXITCODE -ne 0) {
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Write-Host " ✗ 保存失败: $image" -ForegroundColor Red
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continue
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}
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# 获取文件大小
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$fileSizeMB = (Get-Item $tarPath).Length / 1MB
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$fileSizeStr = [Math]::Round($fileSizeMB, 2).ToString() + " MB"
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Write-Host " ✓ 保存成功: $tarPath ($fileSizeStr)" -ForegroundColor Green
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$savedCount++
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Write-Host ""
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}
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Write-Host "========================================" -ForegroundColor Cyan
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Write-Host " 完成" -ForegroundColor Cyan
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Write-Host "========================================" -ForegroundColor Cyan
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Write-Host "保存: $savedCount 个镜像" -ForegroundColor Green
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Write-Host "跳过: $skippedCount 个镜像" -ForegroundColor Gray
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Write-Host ""
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Write-Host "提示: 后续构建将自动使用这些本地镜像" -ForegroundColor Yellow
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Write-Host "提示: 如需重新下载，请使用 -Force 参数" -ForegroundColor Gray
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