# Migrate Netlify Web App: FastAPI

Move FastAPI compute from Netlify web app to Ample, one component at a time. Destination verified on Ample: the app built, started and answered on its public HTTPS URL with encrypted configuration delivered. Source procedure: Copy environment variables from Site configuration (or `netlify env:list`) into an env file kept out of the repository. Not migrated automatically: Netlify Functions, Edge Functions, Forms, Identity and `_redirects`/`_headers` rules are not migrated; implement redirects in the app or the framework. Cutover: Add the custom domain with `ample domain add`, set the documented DNS records, keep the Netlify site until verified, then remove the domain from Netlify. Rollback: keep the source untouched until you confirm; nothing at the source is changed or deleted by this guide.

## Representative Queries
- Migrate Netlify web app: FastAPI
- Where can I host FastAPI built with FastAPI?
- I need a component-scoped export/import or reconfiguration procedure for FastAPI, with compatibility checks, verification and rollback.

## Resource Requirements
- primitive:compute
- primitive:postgres

## Infrastructure Requirements
1. **Compute**
   - Status: verified
   - Summary: Apps run in isolated x86_64 Firecracker microVMs that auto-pause when idle and wake on request; sizes are the priced VM sizes.
   
2. **Postgres**
   - Status: verified
   - Summary: Managed PostgreSQL 16 runs in its own microVM and is auto-provisioned when an app needs a database and no DATABASE_URL is supplied.

## Prerequisites
- Authorized access to the Netlify web app source and its export tooling
- An inventory of every component in scope and out of scope
- A validated backup or copy before any cutover
- An Ample account token with servers:write, databases:read

## Workflow Steps
1. **Inventory the source**  
   List what Netlify web app provides beyond the component you are moving. Out of scope here: Netlify Functions, Edge Functions, Forms, Identity and `_redirects`/`_headers` rules are not migrated; implement redirects in the app or the framework.

2. **Source step 1**  
   Copy environment variables from Site configuration (or `netlify env:list`) into an env file kept out of the repository

3. **Source step 2**  
   Translate `netlify.toml` build settings (command, publish directory) into the repository's own build script; Ample runs the detected build

4. **Source step 3**  
   List Netlify-only features in use: functions, edge functions, forms, identity, redirects and headers rules

5. **Deploy on Ample in parallel**  
   `pip install` into .ample/python from requirements.txt, then `uvicorn` from `run.py` reading PORT on the python-3.12 template. Pass the exported variables with `--env`; keep the source running.
   
   Command: `ample deploy . --name  --public --start "python3 run.py" --env-file .env.production`

6. **Validate before cutover**  
   Run the app's own checks and, for data, compare counts and checksums; the example checks are the pattern self-tests (/p/configuration-secrets, /p/relational-records).

7. **Cut over**  
   Add the custom domain with `ample domain add`, set the documented DNS records, keep the Netlify site until verified, then remove the domain from Netlify.

8. **Rollback**  
   Point DNS or configuration back to the source. The source was never modified; deletion is a separate, user-executed step after validation.

## Limitations
- Documentation only: nothing is executed automatically and no execution binding is offered.
- The source-side procedure is documented from Netlify web app's standard tooling and was not executed in this catalog's evidence;
- Verified on the python-3.12 template at s-1vcpu-1gb; region, compliance and request-duration limits are unknown.
- Managed PostgreSQL 16 only; extensions, connection limits and backup or restore procedures on the managed side are not verified beyond the pattern checks.

## Cost Estimate
- **Currency**: USD
- **Monthly Amount**: $10.00
- **Components**:
  - App server (size: s-1vcpu-1gb) - $5.00
  - Managed PostgreSQL database (size: s-1vcpu-1gb) - $5.00
- **Note**: Destination always-on monthly price of the tested sizes; apps auto-pause when idle. Source costs are unknown to Ample.

## Evidence Summary
- **Summary**: Destination side verified: the FastAPI pattern fixture deployed on Ample and its checks passed (the app built, started and answered on its public HTTPS URL with encrypted configuration delivered).
- **Observed At**: 2026-09-21T01:14:18Z
- **Last Verified At**: 2026-09-21T01:14:18Z

## Next Actions
1. **Browse the catalog index**  
   - Method: GET
   - Path: /v1/catalog

2. **Search published recipes by intent, stack and constraints**  
   - Method: POST
   - Path: /v1/catalog/search  
   - Parameters: {"limit":5,"query":"Migrate Netlify web app: FastAPI"}

3. **Prepare a side-effect-free deployment plan for an authorized project**  
   - Method: POST
   - Path: /v1/catalog/plan

4. **Read the existing agent authentication setup**  
   - Method: GET
   - Path: /mcp/setup

5. **Browse Migrate compute**  
   - Method: GET
   - Path: /v1/catalog/nodes/intent:migrate-compute