Deliver public assets through CDN for Symfony

Summary

Cdn assets for a Symfony app on Ample. Verified on Symfony: a versioned, immutable-cached asset uploaded to a published bucket and served from the CDN URL. Build and start: composer install --no-dev from composer.lock with Symfony Runtime's dotenv disabled (extra.runtime.disable_dotenv; .env never ships, its values arrive as encrypted env, and compile-time parameters such as DEFAULT_URI need a default), then FrankenPHP serving public/ (php-server with the index.php fallback) reading PORT on the php-8.5 template with APP_ENV=prod.

Workflow Steps

Build and start

composer install --no-dev from composer.lock with Symfony Runtime's dotenv disabled (extra.runtime.disable_dotenv; .env never ships, its values arrive as encrypted env, and compile-time parameters such as DEFAULT_URI need a default), then FrankenPHP serving public/ (php-server with the index.php fallback) reading PORT on the php-8.5 template with APP_ENV=prod; the server must bind 0.0.0.0 on PORT.

Publish a bucket for public assets

Publish only the asset bucket; upload versioned keys with an immutable Cache-Control header and build URLs from its public URL.

Command: ample bucket publish

Verify

Fetch the live URL and /p/versioned-static-assets on the example; on failure read the build and runtime logs.

Command: ample logs --kind build

Prerequisites

• A Symfony project (composer install --no-dev from composer.lock with Symfony Runtime's dotenv disabled (extra.runtime.disable_dotenv; .env never ships, its values arrive as encrypted env, and compile-time parameters such as DEFAULT_URI need a default), then FrankenPHP serving public/ (php-server with the index.php fallback) reading PORT on the php-8.5 template with APP_ENV=prod)
• A bucket from ample bucket create with credentials passed as encrypted S3_* environment variables
• An Ample account token with servers:write, buckets:read

Limitations

• Verified on the php-8.5 template at s-1vcpu-1gb; other sizes and Symfony major versions are not verified.
• Region, compliance attestations and request-duration limits are unknown and not claimed.
• The CDN serves published-bucket objects only; cache rules, purge and TTL control are not verified.

Success Checks

1. App responds on its public URL
   • Kind: http_get
   • Path: /
   • Expect: ample canary symfony patterns
2. Versioned-static-assets check from the example
   • Kind: http_get
   • Path: /p/versioned-static-assets
   • Expect: see the pattern fixture checks

Cost Estimate

• Currency: USD
• Monthly Amount: 5.0
• Basis: size prices from pricing.toml (loaded by the API) at build revision 1ac5595375130d45290090e82ed0f554ccd45405-dirty
• Components:
  • Name: app server
  • Size: s-1vcpu-1gb
  • Quantity: 1.0
  • Monthly Amount: 5.0
• Note: Always-on monthly price of the tested sizes; apps auto-pause when idle. Buckets are allocation-priced per quota and not included.

Examples

• Title: Symfony pattern fixture
  • Description: Verified CDN assets on Symfony.
  • Source Ref: tests/deploy-canaries/symfony-patterns

Evidence Summary

• Kind: canary_run
• Summary: Symfony pattern fixture deployed on Ample (composer install --no-dev from composer.lock with Symfony Runtime's dotenv disabled (extra.runtime.disable_dotenv; .env never ships, its values arrive as encrypted env, and compile-time parameters such as DEFAULT_URI need a default), then FrankenPHP serving public/ (php-server with the index.php fallback) reading PORT on the php-8.5 template with APP_ENV=prod); for this guide: a versioned, immutable-cached asset uploaded to a published bucket and served from the CDN URL.
• Observed At: 2026-09-20T22:23:52Z
• Implementation Revision: 64a7bb8e37dd-dirty (CLI 64a7bb8)
• Expires At: 2027-03-19T22:23:52Z
• Scope: Checks: ['/p/versioned-static-assets'], Template: 'php-8.5'