page:recipes:digital downloads:symfony:relational catalog
Host digital downloads with Symfony: relational catalog data
Deploy a digital downloads built with Symfony on Ample using the transactional workflows pattern. Compute runs the app in an isolated microVM behind a public HTTPS URL, a managed PostgreSQL 16 database is auto-provisioned and injected as DATABASE_URL. Verified on Symfony: an optimistic version check and an event row written in the same transaction, a stale update rejected, and a history query over the application-owned events (history=2 conflict=rejected). Not separately tested: your domain records, validation rules and concurrency policy; treat the digital downloads-specific behavior as your application code.
Representative Queries
- Host digital downloads with Symfony: relational catalog data
- Where can I host Digital downloads built with Symfony?
- I need catalog tables, transactional update logic and application-level access boundaries.
Prerequisites
- A Symfony project that builds and starts with the documented commands (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 PostgreSQL driver reading DATABASE_URL at runtime (auto-provisioned when omitted, or supplied with --env)
- An Ample account token with servers:write, databases:read
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.Implement the pattern on PostgreSQL
The fixture's module implements transactional workflows: an optimistic version check and an event row written in the same transaction, a stale update rejected, and a history query over the application-owned events (history=2 conflict=rejected). Copy the approach into your schema; keep migrations idempotent and run them with --release-command.Deploy
Run the synchronous deploy once and read the result (exit 0 live, 1 failed, 2 blocked). Re-running with no change is a no-op.ample deploy . --name <name> --publicVerify
Fetch the live URL and the pattern self-test route(s) (/p/transactional-workflows) from the example; then run your own checks. On failure readample logs <your logs> --kind buildthen--kind runtime.ample logs --kind build
Tested Configuration
- Template: php-8.5
- Runtime: php
- Size: s-1vcpu-1gb
- Install: composer install --no-dev --prefer-dist --no-interaction --no-progress --optimize-autoloader
- Start: frankenphp php-server --listen :$PORT --root public
Success Checks
- app responds on its public URL:
Kind: http_get
Path: /
Expect: ample canary symfony patterns - transactional-workflows self-test:
Kind: http_get
Path: /p/transactional-workflows
Expect: tx=ok history=2 conflict=rejected
Limitations
- Verified on the php-8.5 template at s-1vcpu-1gb with the example fixture; other sizes, templates and Symfony major versions are not verified.
- The digital downloads itself (your domain records, validation rules and concurrency policy) is application code and was not separately tested; the pattern checks are what was verified.
- Region, compliance attestations and request-duration limits are unknown and not claimed.
- Apps auto-pause when idle and wake on the next request; always-on is an operator setting, not a plan feature.
- Managed PostgreSQL 16 only; extensions, connection limits and backup or restore procedures are not verified; apps and their databases are placed together.