跳至內容

部署到 AWS S3 + CloudFront ​

在 AWS 上架設 BentoPDF,取得最大的控制權與擴充性。

架構 ​

User → CloudFront (CDN) → S3 (Static Files)

步驟 1:建立 S3 儲存貯體 ​

bash
# Create bucket
aws s3 mb s3://your-bentopdf-bucket --region us-east-1

# Enable static website hosting
aws s3 website s3://your-bentopdf-bucket \
  --index-document index.html \
  --error-document index.html

步驟 2:建置並上傳 ​

bash
# Build the project (optionally with custom branding)
# VITE_BRAND_NAME="AcmePDF" VITE_BRAND_LOGO="images/acme-logo.svg" npm run build
npm run build

# Sync to S3
aws s3 sync dist/ s3://your-bentopdf-bucket \
  --delete \
  --cache-control "max-age=31536000"

# Set correct MIME types for WASM
aws s3 cp s3://your-bentopdf-bucket/ s3://your-bentopdf-bucket/ \
  --recursive \
  --exclude "*" \
  --include "*.wasm" \
  --content-type "application/wasm" \
  --metadata-directive REPLACE

# Set correct MIME type for ES module files (.mjs)
# S3 defaults .mjs to application/octet-stream, which browsers refuse to
# execute as ES modules. The bundled PDF viewer (Sign PDF, Form Filler)
# ships ES modules with .mjs extensions and will fail without this step.
aws s3 cp s3://your-bentopdf-bucket/ s3://your-bentopdf-bucket/ \
  --recursive \
  --exclude "*" \
  --include "*.mjs" \
  --content-type "application/javascript" \
  --metadata-directive REPLACE

步驟 3:建立 CloudFront 分配 ​

bash
aws cloudfront create-distribution \
  --origin-domain-name your-bentopdf-bucket.s3.amazonaws.com \
  --default-root-object index.html

或使用 AWS 主控台:

  1. 前往 CloudFront → Create distribution
  2. Origin domain:選擇您的 S3 儲存貯體
  3. 啟用「Origin Access Control」
  4. Default root object:index.html
  5. 建立分配

步驟 3b:回應標頭政策(LibreOffice WASM 必需) ​

以 LibreOffice 為基礎的轉換(Word、Excel、PowerPoint 轉 PDF)需要 SharedArrayBuffer,而它需要特定的回應標頭。請建立 CloudFront 回應標頭政策:

  1. 前往 CloudFront → Policies → Response headers
  2. 建立包含以下標頭的自訂政策:
標頭值
Cross-Origin-Embedder-Policyrequire-corp
Cross-Origin-Opener-Policysame-origin
Cross-Origin-Resource-Policycross-origin
  1. 將政策套用到您分配的預設快取行為

或透過 CLI:

bash
aws cloudfront create-response-headers-policy \
  --response-headers-policy-config '{
    "Name": "BentoPDF-COEP-COOP",
    "CustomHeadersConfig": {
      "Quantity": 3,
      "Items": [
        {"Header": "Cross-Origin-Embedder-Policy", "Value": "require-corp", "Override": true},
        {"Header": "Cross-Origin-Opener-Policy", "Value": "same-origin", "Override": true},
        {"Header": "Cross-Origin-Resource-Policy", "Value": "cross-origin", "Override": true}
      ]
    }
  }'

步驟 3c:預先壓縮 WASM 檔案的 S3 中繼資料 ​

LibreOffice WASM 檔案已預先壓縮(.wasm.gz、.data.gz)。請設定正確的 Content-Type 與 Content-Encoding,讓瀏覽器能解壓縮:

bash
# Set correct headers for soffice.wasm.gz
aws s3 cp s3://your-bentopdf-bucket/libreoffice-wasm/soffice.wasm.gz \
  s3://your-bentopdf-bucket/libreoffice-wasm/soffice.wasm.gz \
  --content-type "application/wasm" \
  --content-encoding "gzip" \
  --metadata-directive REPLACE

# Set correct headers for soffice.data.gz
aws s3 cp s3://your-bentopdf-bucket/libreoffice-wasm/soffice.data.gz \
  s3://your-bentopdf-bucket/libreoffice-wasm/soffice.data.gz \
  --content-type "application/octet-stream" \
  --content-encoding "gzip" \
  --metadata-directive REPLACE

重要

若沒有回應標頭政策,SharedArrayBuffer 將無法使用,LibreOffice WASM 轉換會停在約 55%。若 .gz 檔案沒有正確的 Content-Encoding,瀏覽器會收到原始 gzip 位元組,導致 WASM 編譯失敗。

步驟 4:S3 儲存貯體政策 ​

允許 CloudFront 存取儲存貯體:

json
{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Sid": "AllowCloudFrontAccess",
      "Effect": "Allow",
      "Principal": {
        "Service": "cloudfront.amazonaws.com"
      },
      "Action": "s3:GetObject",
      "Resource": "arn:aws:s3:::your-bentopdf-bucket/*",
      "Condition": {
        "StringEquals": {
          "AWS:SourceArn": "arn:aws:cloudfront::ACCOUNT_ID:distribution/DISTRIBUTION_ID"
        }
      }
    }
  ]
}

步驟 5:自訂錯誤頁面 ​

將 404 設定為回傳 index.html 以支援 SPA 路由:

  1. CloudFront → Error pages
  2. 建立自訂錯誤回應:
    • HTTP 錯誤代碼:404
    • 回應頁面路徑:/index.html
    • HTTP 回應代碼:200

費用估算 ​

資源預估費用
S3 儲存空間(約 500MB)約 $0.01/月
CloudFront(1TB 傳輸量)約 $85/月
CloudFront(10GB 傳輸量)約 $0.85/月

TIP

對不常存取的檔案使用 S3 Intelligent Tiering 以最佳化成本。

使用 Terraform 自動化 ​

hcl
# main.tf
resource "aws_s3_bucket" "bentopdf" {
  bucket = "your-bentopdf-bucket"
}

resource "aws_cloudfront_distribution" "bentopdf" {
  origin {
    domain_name = aws_s3_bucket.bentopdf.bucket_regional_domain_name
    origin_id   = "S3Origin"
  }

  enabled             = true
  default_root_object = "index.html"

  default_cache_behavior {
    allowed_methods  = ["GET", "HEAD"]
    cached_methods   = ["GET", "HEAD"]
    target_origin_id = "S3Origin"

    viewer_protocol_policy = "redirect-to-https"
  }
}

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