部署到 AWS S3 + CloudFront
在 AWS 上托管 BentoPDF,获得最大的控制力和可扩展性。
架构
User → CloudFront (CDN) → S3 (Static Files)第 1 步:创建 S3 存储桶
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第 2 步:构建并上传
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第 3 步:创建 CloudFront 分配
bash
aws cloudfront create-distribution \
--origin-domain-name your-bentopdf-bucket.s3.amazonaws.com \
--default-root-object index.html或者使用 AWS 控制台:
- 前往 CloudFront → Create distribution
- Origin domain:选择您的 S3 存储桶
- 启用 "Origin Access Control"
- Default root object:
index.html - 创建分配
第 3b 步:响应头策略(LibreOffice WASM 必需)
基于 LibreOffice 的转换(Word、Excel、PowerPoint 转 PDF)需要 SharedArrayBuffer,而这需要特定的响应头。请创建一个 CloudFront 响应头策略(Response Headers Policy):
- 前往 CloudFront → Policies → Response headers
- 创建包含以下响应头的自定义策略:
| 响应头 | 值 |
|---|---|
Cross-Origin-Embedder-Policy | require-corp |
Cross-Origin-Opener-Policy | same-origin |
Cross-Origin-Resource-Policy | cross-origin |
- 将该策略附加到分配的默认缓存行为
或者通过 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}
]
}
}'第 3c 步:预压缩 WASM 文件的 S3 元数据
LibreOffice WASM 文件是预压缩的(.wasm.gz、.data.gz)。请设置正确的 Content-Type 和 Content-Encoding,让浏览器能够正确解压:
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
如果没有响应头策略,SharedArrayBuffer 将不可用,LibreOffice WASM 转换会卡在约 55%。如果 .gz 文件没有正确的 Content-Encoding,浏览器会收到原始的 gzip 字节,WASM 编译将失败。
第 4 步:S3 存储桶策略
允许 CloudFront 访问存储桶:
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"
}
}
}
]
}第 5 步:自定义错误页面
将 404 配置为返回 index.html,以支持 SPA 路由:
- CloudFront → Error pages
- 创建自定义错误响应:
- HTTP error code:404
- Response page path:
/index.html - HTTP response code:200
成本估算
| 资源 | 预估成本 |
|---|---|
| S3 存储(约 500MB) | 约 $0.01/月 |
| CloudFront(1TB 流量) | 约 $85/月 |
| CloudFront(10GB 流量) | 约 $0.85/月 |
TIP
对于不常访问的文件,可使用 S3 Intelligent Tiering 来优化成本。
使用 Terraform 自动化
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"
}
}