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201 lines
5.8 KiB
Markdown
201 lines
5.8 KiB
Markdown
# Desplega a AWS S3 + CloudFront
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Allotja BentoPDF a AWS per tenir el màxim control i escalabilitat.
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## Arquitectura
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```
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User → CloudFront (CDN) → S3 (Static Files)
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```
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## Pas 1: crea el bucket d'S3
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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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## Pas 2: compila i puja
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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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## Pas 3: crea la distribució de CloudFront
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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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O utilitza la consola d'AWS:
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1. Ves a CloudFront → Create distribution
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2. Origin domain: selecciona el teu bucket d'S3
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3. Activa "Origin Access Control"
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4. Default root object: `index.html`
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5. Crea la distribució
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## Pas 3b: política de capçaleres de resposta (obligatòria per a LibreOffice WASM)
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Les conversions basades en LibreOffice (Word, Excel i PowerPoint a PDF) requereixen `SharedArrayBuffer`, que necessita unes capçaleres de resposta concretes. Crea una Response Headers Policy de CloudFront:
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1. Ves a CloudFront → Policies → Response headers
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2. Crea una política personalitzada amb aquestes capçaleres:
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| Capçalera | Valor |
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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. Associa la política al comportament de memòria cau per defecte de la distribució
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O per 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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## Pas 3c: metadades d'S3 per als fitxers WASM precomprimits
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Els fitxers WASM de LibreOffice estan precomprimits (`.wasm.gz`, `.data.gz`). Defineix el Content-Type i el Content-Encoding correctes perquè els navegadors els descomprimeixin:
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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 Important
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Sense la política de capçaleres de resposta, `SharedArrayBuffer` no està disponible i les conversions de LibreOffice WASM es quedaran bloquejades al ~55 %. Sense el Content-Encoding correcte als fitxers `.gz`, el navegador rep bytes gzip en brut i la compilació de WASM falla.
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:::
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## Pas 4: política del bucket d'S3
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Permet que CloudFront accedeixi al bucket:
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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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## Pas 5: pàgines d'error personalitzades
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Configura el 404 perquè retorni `index.html` per a l'encaminament SPA:
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1. CloudFront → Error pages
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2. Crea una resposta d'error personalitzada:
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- HTTP error code: 404
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- Response page path: `/index.html`
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- HTTP response code: 200
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## Estimació de costos
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| Recurs | Cost estimat |
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| --------------------------- | ------------ |
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| Emmagatzematge S3 (~500MB) | ~0,01 $/mes |
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| CloudFront (1TB transfer.) | ~85 $/mes |
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| CloudFront (10GB transfer.) | ~0,85 $/mes |
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::: tip
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Utilitza S3 Intelligent Tiering per optimitzar costos en fitxers d'accés poc freqüent.
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:::
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## Automatització amb Terraform
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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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