### Enforce private-file authorization for Django

**Summary**  
Private file access for a Django app on Ample. Verified on Django: a role-to-document access model with negative tests (401, 403) and an authorized private-bucket round-trip (private=ok). Build and start: pip install into .ample/python from requirements.txt, then waitress serving project.wsgi from run.py reading PORT on the python-3.12 template.

---

### Representative Queries  
- Enforce private-file authorization for Django  
- Where can I host Enforce private-file authorization built with Django?  
- I need application identity integration, per-file access rules and negative authorization tests.

---

### Resource Requirements  
- **Compute**  
- **Postgres**  
- **S3-compatible object storage**

---

### Workflow Steps  
1. **Build and start**  
   pip install into .ample/python from requirements.txt, then waitress serving project.wsgi from run.py reading PORT on the python-3.12 template; the server must bind 0.0.0.0 on PORT.

2. **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.
   ```bash  
   ample deploy . --name <name> --public --start "python3 run.py" --env S3_ENDPOINT=... --env S3_REGION=... --env S3_BUCKET=... --env S3_ACCESS_KEY_ID=... --env S3_SECRET_ACCESS_KEY=...  
   ```

3. **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   Return 401 for unauthenticated requests and 403 for the wrong role; keep the bucket unpublished and stream objects through the app.

4. **Verify**  
   Fetch the live URL and /p/private-document-library on the example; on failure read the build and runtime logs.
   ```bash  
   ample logs <log-options> --kind build  
   ```

---

### Prerequisites  
- A Django project (pip install into .ample/python from requirements.txt, then waitress serving project.wsgi from run.py reading PORT on the python-3.12 template)  
- A PostgreSQL driver reading DATABASE_URL at runtime  
- A bucket from `ample bucket create` with credentials passed as encrypted S3_* environment variables  
- An Ample account token with servers:write, databases:read, buckets:read

---

### Cost Estimate  
- **Currency**: USD  
- **Monthly Amount**: 10.0  
- **Basis**: size prices from pricing.toml (loaded by the API) at build revision 1ac5595375130d45290090e82ed0f554ccd45405-dirty  
- **Components**:  
  - app server: 1.0 x s-1vcpu-1gb = 5.0  
  - managed PostgreSQL database: 1.0 x s-1vcpu-1gb = 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.

---

### Limitations  
- Verified on the python-3.12 template at s-1vcpu-1gb; other sizes and Django 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.

---

### Examples  
- **Django pattern fixture**: Verified private file access on Django.  
   - Source Reference: tests/deploy-canaries/django-patterns

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### Success Checks  
1. **App responds on its public URL**  
   - Kind: http_get  
   - Path: /  
   - Expect: ample canary django patterns

2. **Private-document-library check from the example**  
   - Kind: http_get  
   - Path: /p/private-document-library  
   - Expect: see the pattern fixture checks

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### Next Actions  
- **Browse the catalog index**  
- **Search published recipes by intent, stack and constraints**  
- **Prepare a side-effect-free deployment plan for an authorized project**  
- **Read the existing agent authentication setup**  
- **Browse Django**  
- **Browse Connect app to storage**  
- **Browse Private document library **

---

### Formats  
- HTML: [ample.computer/guides/django/private-file-access](/content/guides/django/private-file-access/index.html)  
- Markdown: [ample.computer/guides/django/private-file-access.md](/content/guides/django/private-file-access.md)  
- JSON: [api.ample.computer/v1/catalog/recipes/page%3Aguides%3Adjango%3Aprivate-file-access](https://api.ample.computer/v1/catalog/recipes/page%3Aguides%3Adjango%3Aprivate-file-access)