private file access.md
Enforce private-file authorization for Laravel
Summary
Private file access for a Laravel app on Ample. Verified on Laravel: a role-to-document access model with negative tests (401, 403) and an authorized private-bucket round-trip (private=ok). Build and start: composer install --no-dev from composer.lock, then FrankenPHP serving public/ (php-server with the index.php fallback) reading PORT on the php-8.5 template.
Infrastructure requirements
- Compute: verified (Apps run in isolated x86_64 Firecracker microVMs that auto-pause when idle and wake on request; sizes are the priced VM sizes.)
- Postgres: 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: verified (Buckets are S3-compatible with issued credentials; PutObject and GetObject are verified by canary. Other S3 operations are not verified.)
Prerequisites
- A Laravel project (composer install --no-dev from composer.lock, then FrankenPHP serving public/ (php-server with the index.php fallback) reading PORT on the php-8.5 template)
- A PostgreSQL driver reading DATABASE_URL at runtime
- A bucket from
ample bucket createwith 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
- Build and start. composer install --no-dev from composer.lock, then FrankenPHP serving public/ (php-server with the index.php fallback) reading PORT on the php-8.5 template; the server must bind 0.0.0.0 on PORT.
- Create the bucket and pass its credentials. Create it once with
ample bucket create, then pass endpoint, region, bucket and keys with --env; use path-style addressing.
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=...
- Authorize before touching storage. Return 401 for unauthenticated requests and 403 for the wrong role; keep the bucket unpublished and stream objects through the app.
- Verify. Fetch the live URL and /p/private-document-library on the example; on failure read the build and runtime logs.
ample logs <deployment_id> --kind build
Tested examples
- Laravel pattern fixture (tests/deploy-canaries/laravel-patterns): Verified private file access on Laravel.
Success checks
- app responds on its public URL (
/on the live URL, expect ample canary laravel patterns) - private-document-library check from the example (
/p/private-document-libraryon the live URL, expect see the pattern fixture checks)
Limitations
- Verified on the php-8.5 template at s-1vcpu-1gb; other sizes and Laravel major versions are not verified.
- Region, compliance attestations and request-duration limits are unknown and not claimed.
- Managed PostgreSQL 16 only; extensions, connection limits and backup or restore procedures are not verified.
- PutObject and GetObject with path-style addressing are verified; other S3 operations are not.
Cost estimate
Estimated 10.00 USD per month (size prices from pricing.toml at build revision a1b8c38919e59cd035ebabaced73cf84ece24371).
- app server x1
s-1vcpu-1gb: 5.00 USD - managed PostgreSQL database x1
s-1vcpu-1gb: 5.00 USD
Always-on monthly price of the tested sizes; apps auto-pause when idle. Buckets are allocation-priced per quota and not included.
Verification evidence
- canary_run on 2026-09-20T20:36:21Z at revision
118ad1c6d7d23d4c2ce069254bab9ec9d37cd57b-dirty (CLI 118ad1c): Laravel pattern fixture deployed on Ample (composer install --no-dev from composer.lock, then FrankenPHP serving public/ (php-server with the index.php fallback) reading PORT on the php-8.5 template); for this guide: a role-to-document access model with negative tests (401, 403) and an authorized private-bucket round-trip (private=ok). (expires 2027-03-19T20:36:21Z)
Last verified: 2026-09-20T20:36:21Z
Execution binding
MCP tool ample_deploy (registry mcp:ample_deploy), schema hash 876465fce906da0c observed 2026-09-21T03:19:59.461917+00:00 at revision 49962bcade4f, binding state current, required scopes: servers:write, databases:read, buckets:read.