mirror of
https://github.com/alam00000/bentopdf.git
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201 lines
5.6 KiB
Markdown
201 lines
5.6 KiB
Markdown
# 部署到 AWS S3 + CloudFront
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在 AWS 上架設 BentoPDF,取得最大的控制權與擴充性。
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## 架構
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```
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User → CloudFront (CDN) → S3 (Static Files)
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```
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## 步驟 1:建立 S3 儲存貯體
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```bash
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# Create bucket
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aws s3 mb s3://your-bentopdf-bucket --region us-east-1
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# Enable static website hosting
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aws s3 website s3://your-bentopdf-bucket \
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--index-document index.html \
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--error-document index.html
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```
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## 步驟 2:建置並上傳
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```bash
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# Build the project (optionally with custom branding)
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# VITE_BRAND_NAME="AcmePDF" VITE_BRAND_LOGO="images/acme-logo.svg" npm run build
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npm run build
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# Sync to S3
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aws s3 sync dist/ s3://your-bentopdf-bucket \
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--delete \
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--cache-control "max-age=31536000"
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# Set correct MIME types for WASM
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aws s3 cp s3://your-bentopdf-bucket/ s3://your-bentopdf-bucket/ \
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--recursive \
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--exclude "*" \
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--include "*.wasm" \
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--content-type "application/wasm" \
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--metadata-directive REPLACE
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# Set correct MIME type for ES module files (.mjs)
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# S3 defaults .mjs to application/octet-stream, which browsers refuse to
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# execute as ES modules. The bundled PDF viewer (Sign PDF, Form Filler)
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# ships ES modules with .mjs extensions and will fail without this step.
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aws s3 cp s3://your-bentopdf-bucket/ s3://your-bentopdf-bucket/ \
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--recursive \
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--exclude "*" \
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--include "*.mjs" \
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--content-type "application/javascript" \
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--metadata-directive REPLACE
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```
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## 步驟 3:建立 CloudFront 分配
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```bash
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aws cloudfront create-distribution \
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--origin-domain-name your-bentopdf-bucket.s3.amazonaws.com \
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--default-root-object index.html
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```
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或使用 AWS 主控台:
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1. 前往 CloudFront → Create distribution
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2. Origin domain:選擇您的 S3 儲存貯體
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3. 啟用「Origin Access Control」
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4. Default root object:`index.html`
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5. 建立分配
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## 步驟 3b:回應標頭政策(LibreOffice WASM 必需)
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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:
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1. 前往 CloudFront → Policies → Response headers
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2. 建立包含以下標頭的自訂政策:
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| 標頭 | 值 |
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| ------------------------------ | -------------- |
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| `Cross-Origin-Embedder-Policy` | `require-corp` |
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| `Cross-Origin-Opener-Policy` | `same-origin` |
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| `Cross-Origin-Resource-Policy` | `cross-origin` |
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3. 將政策套用到您分配的預設快取行為
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或透過 CLI:
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```bash
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aws cloudfront create-response-headers-policy \
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--response-headers-policy-config '{
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"Name": "BentoPDF-COEP-COOP",
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"CustomHeadersConfig": {
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"Quantity": 3,
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"Items": [
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{"Header": "Cross-Origin-Embedder-Policy", "Value": "require-corp", "Override": true},
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{"Header": "Cross-Origin-Opener-Policy", "Value": "same-origin", "Override": true},
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{"Header": "Cross-Origin-Resource-Policy", "Value": "cross-origin", "Override": true}
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]
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}
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}'
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```
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## 步驟 3c:預先壓縮 WASM 檔案的 S3 中繼資料
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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:
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```bash
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# Set correct headers for soffice.wasm.gz
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aws s3 cp s3://your-bentopdf-bucket/libreoffice-wasm/soffice.wasm.gz \
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s3://your-bentopdf-bucket/libreoffice-wasm/soffice.wasm.gz \
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--content-type "application/wasm" \
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--content-encoding "gzip" \
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--metadata-directive REPLACE
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# Set correct headers for soffice.data.gz
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aws s3 cp s3://your-bentopdf-bucket/libreoffice-wasm/soffice.data.gz \
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s3://your-bentopdf-bucket/libreoffice-wasm/soffice.data.gz \
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--content-type "application/octet-stream" \
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--content-encoding "gzip" \
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--metadata-directive REPLACE
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```
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::: warning 重要
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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。
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:::
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## 步驟 4:S3 儲存貯體政策
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允許 CloudFront 存取儲存貯體:
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```json
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{
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"Version": "2012-10-17",
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"Statement": [
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{
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"Sid": "AllowCloudFrontAccess",
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"Effect": "Allow",
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"Principal": {
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"Service": "cloudfront.amazonaws.com"
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},
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"Action": "s3:GetObject",
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"Resource": "arn:aws:s3:::your-bentopdf-bucket/*",
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"Condition": {
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"StringEquals": {
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"AWS:SourceArn": "arn:aws:cloudfront::ACCOUNT_ID:distribution/DISTRIBUTION_ID"
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}
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}
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}
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]
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}
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```
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## 步驟 5:自訂錯誤頁面
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將 404 設定為回傳 `index.html` 以支援 SPA 路由:
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1. CloudFront → Error pages
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2. 建立自訂錯誤回應:
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- HTTP 錯誤代碼:404
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- 回應頁面路徑:`/index.html`
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- HTTP 回應代碼:200
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## 費用估算
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| 資源 | 預估費用 |
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| ------------------------- | ----------- |
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| S3 儲存空間(約 500MB) | 約 $0.01/月 |
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| CloudFront(1TB 傳輸量) | 約 $85/月 |
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| CloudFront(10GB 傳輸量) | 約 $0.85/月 |
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::: tip
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對不常存取的檔案使用 S3 Intelligent Tiering 以最佳化成本。
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:::
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## 使用 Terraform 自動化
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```hcl
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# main.tf
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resource "aws_s3_bucket" "bentopdf" {
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bucket = "your-bentopdf-bucket"
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}
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resource "aws_cloudfront_distribution" "bentopdf" {
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origin {
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domain_name = aws_s3_bucket.bentopdf.bucket_regional_domain_name
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origin_id = "S3Origin"
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}
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enabled = true
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default_root_object = "index.html"
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default_cache_behavior {
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allowed_methods = ["GET", "HEAD"]
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cached_methods = ["GET", "HEAD"]
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target_origin_id = "S3Origin"
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viewer_protocol_policy = "redirect-to-https"
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}
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}
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```
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