# Host order tracking with Symfony: authorized file delivery

## Summary

Deploy a order tracking built with Symfony on Ample using the generated downloads 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, a private S3-compatible bucket holds objects with credentials delivered as encrypted environment variables. Verified on Symfony: an export query rendered to a CSV artifact stored with metadata in a private bucket and returned only to an authorized caller (401 without token, export=ok rows=3). Not separately tested: your export formats, retention policy and entitlement model; treat the order tracking-specific behavior as your application code.

## Infrastructure requirements

- Verified Compute: Apps run in isolated x86_64 Firecracker microVMs that auto-pause when idle and wake on request; sizes are the priced VM sizes.
- Verified Postgres: Managed PostgreSQL 16 runs in its own microVM and is auto-provisioned when an app needs a database and no DATABASE_URL is supplied.
- Verified S3-compatible object storage: Buckets are S3-compatible with issued credentials; PutObject and GetObject are verified by canary. Other S3 operations are not verified.

## 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).
- A PostgreSQL driver reading DATABASE_URL at runtime.
- A bucket from `ample bucket create` with its credentials passed as encrypted S3_* environment variables.
- An Ample account token with servers:write, databases:read, buckets:read.

## Exact 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`

## Steps

1. **Build and start.** composer install --no-dev from composer.lock with Symfony Runtime's dotenv disabled. The server must bind 0.0.0.0 on PORT.
2. **Implement the pattern on PostgreSQL.** The fixture's module implements generated downloads: an export query rendered to a CSV artifact stored with metadata in a private bucket and returned only to an authorized caller (401 without token, export=ok rows=3).
3. **Wire object storage.** Create the bucket(s), then pass endpoint, region, bucket and keys as --env values. Use path-style addressing. Keep private data in an unpublished bucket.
4. **Deploy.** Run the synchronous deploy once and read the result (exit 0 live, 1 failed, 2 blocked).

```
   ample deploy . --name <app-name> --public --env S3_ENDPOINT=... --env S3_REGION=... --env S3_BUCKET=... --env S3_ACCESS_KEY_ID=... --env S3_SECRET_ACCESS_KEY=...
   ```
5. **Verify.** Fetch the live URL and the pattern self-test route(s) (/p/generated-downloads);
   then run your own checks.

## Success checks

- App responds on its public URL (`/` on the live URL, expect ample canary symfony patterns).
- Generated-downloads self-test (`/p/generated-downloads` on the live URL, expect export=ok rows=3).

## Limitations

- Verified on the php-8.5 template; other sizes, templates and Symfony major versions are not verified.
- The order tracking itself (your export formats, retention policy and entitlement model) is application code and was not separately tested.
- Apps auto-pause when idle and wake on the next request.
- Managed PostgreSQL 16 only; extensions, connection limits and backup or restore procedures are not verified.

## Cost estimate

Estimated 10.00 USD per month.

## Verification evidence

- Canary runs verified:
  - Symfony pattern fixture deployed on Ample; checks passed.

## Execution binding

MCP tool `ample_deploy`, schema hash observed at revision.