## The short version

Deploy a subscription content built with Symfony on Ample using the public media library 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, and a published bucket serves public assets from the CDN host.

## WHAT WAS VERIFIED

Verified on Symfony: an object written to a published bucket with an immutable Cache-Control header, a mapping row, and the CDN URL serving it publicly.

## INFRASTRUCTURE

### What it needs

- [Compute](/content/discover/primitive/compute/index.html): verified (Apps run in isolated x86_64 Firecracker microVMs; sizes are the priced VM sizes.)
- [Postgres](/content/discover/primitive/postgres/index.html): verified (Managed PostgreSQL 16 runs in its own microVM and is auto-provisioned when an app needs a database and no `DATABASE_URL` is supplied.)
- [S3-compatible object storage](/content/discover/primitive/s3-compatible-object-storage/index.html): verified (Buckets are S3-compatible with issued credentials; PutObject and GetObject are verified by canary. Other S3 operations are not verified.)
- [CDN](/content/discover/primitive/cdn/index.html): verified (A published bucket's objects are served at its `public_url`. It does not front app compute and is not a cache or key-value store.)

## PREREQUISITES

### Before you start

- 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`)
- A bucket from `ample bucket create` with its credentials passed as encrypted `S3_*` environment variables and a second, published bucket for public assets (`CDN_*`)
- An Ample account token with `servers:write`, `databases:read`, `buckets:read`

## STEP BY STEP

### How to do it

1. **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`.

2. **Implement the pattern on PostgreSQL**  
   The fixture's module implements public media library: an object written to a published bucket with an immutable Cache-Control header, a mapping row, and the CDN URL serving it publicly. Copy the approach into your schema; keep migrations idempotent and run them with `--release-command`.

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. Publish only the bucket that serves public assets and reference its CDN URL.

4. **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 <app-name> --public --env S3_ENDPOINT=... --env S3_REGION=... --env S3_BUCKET=... --env S3_ACCESS_KEY_ID=... --env S3_SECRET_ACCESS_KEY=... --env CDN_PUBLIC_URL=...
   ```

5. **Verify**  
   Fetch the live URL and the pattern self-test route(s) (`/p/public-media-library`) from the example; then run your own checks. On failure read `ample logs <deployment_id> --kind build` then `--kind runtime`.
   ```
   ample logs <deployment_id> --kind build
   ```

## EXAMPLES

### Tested examples  
- **Symfony pattern fixture** (`tests/deploy-canaries/symfony-patterns`): Multi-pattern Symfony app whose public media library module was checked live; the module is under `tests/deploy-canaries/_pattern-modules`.

## SUCCESS CHECKS

### How to know it worked  
- App responds on its public URL (`/` on the live URL, expect ample canary Symfony patterns)
- public-media-library self-test (`/p/public-media-library` on the live URL, expect a CDN URL whose content is served publicly)

## COST

### Cost estimate  
Estimated 10.00 USD per month (size prices from pricing.toml at build revision `ca0b484a7a9957c573a88d3a32dc603c3c10135a`).
- app server x1 `s-1vcpu-1gb`: 5.00 USD
- managed PostgreSQL database x1 `s-1vcpu-1gb`: 5.00 USD
Upper-bound monthly price of the tested sizes. Buckets are allocation-priced per quota and not included.

## EVIDENCE

### Verification evidence  
- `canary_run` on `2026-09-20T22:23:52Z` at revision `64a7bb8e37dd (CLI 64a7bb8e)`: 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`); checks passed for public-media-library and configuration-secrets. Pattern proof: an object written to a published bucket with an immutable Cache-Control header, a mapping row, and the CDN URL serving it publicly. (expires `2027-03-19T22:23:52Z`)
- `canary_run` on `2026-09-20T22:23:52Z` at revision `64a7bb8e37dd (CLI 64a7bb8e)`: The same Symfony app deployed with a `--release-command` migration; the marker it created was readable after activation. (expires `2027-03-19T22:23:52Z`)

## EXECUTION

### Execution binding  
MCP tool `ample_deploy` (registry `mcp:ample_deploy`), schema hash `876465fce906da0c` observed `2026-09-22T00:31:22.774679+00:00` at revision `e6446ceea69b`. Binding state at export: schema_changed. Required scopes: `servers:write`, `databases:read`, `buckets:read`.

## NEXT ACTIONS

### Typed next actions  
- Browse the catalog index (`GET /v1/catalog` on the api origin; authentication not required, approval not required)
- Search published recipes by intent, stack and constraints (`POST /v1/catalog/search` on the api origin; authentication not required, approval not required)
- Prepare a side-effect-free deployment plan for an authorized project (`POST /v1/catalog/plan` on the api origin; authentication required, approval not required)
- Read the existing agent authentication setup (`GET /mcp/setup` on the api origin; authentication not required, approval not required)
- Browse Subscription content (`GET /v1/catalog/nodes/workload%3Asubscription-content` on the api origin; authentication not required, approval not required)
- Browse Symfony (`GET /v1/catalog/nodes/stack%3Aframework-symfony` on the api origin; authentication not required, approval not required)
- Browse Public media library (`GET /v1/catalog/nodes/pattern%3Apublic-media-library` on the api origin; authentication not required, approval not required)
- Browse Deploy web app (`GET /v1/catalog/nodes/intent%3Adeploy-web-app` on the api origin; authentication not required, approval not required)

## ABOUT THIS RECIPE

### Identifiers and status  
Recipe `page:recipes:subscription-content:symfony:product-media`. Revision r1.

release **published** support **verified** execution **blocked (schema_changed: live tool schema differs from the recorded binding)**

Formats: [HTML](/content/recipes/subscription-content/symfony/product-media/index.html) | [Markdown](/content/recipes/subscription-content/symfony/product-media.md) | [JSON contract](https://api.ample.computer/v1/catalog/recipes/page%3Arecipes%3Asubscription-content%3Asymfony%3Aproduct-media)