# Host documentation site with Phoenix: public-site delivery

## Summary
Deploy a documentation site built with Phoenix on Ample using the public web service pattern. Compute runs the app in an isolated microVM behind a public HTTPS URL, and a published bucket serves public assets from the CDN host. Verified on Phoenix: a versioned, immutable-cached asset uploaded to a published bucket and served from the CDN URL alongside the app's own public HTTPS URL. Not separately tested: your site content and build; treat the documentation site-specific behavior as your application code.

## Representative Queries
- Host documentation site with Phoenix: public-site delivery
- Where can I host Documentation site built with Phoenix?
- I need an explicit origin-to-CDN delivery path and a tested public content build.

## Resource Requirements
- **primitive:compute**
- **primitive:cdn**

## Infrastructure Requirements
1. **Compute**: Apps run in isolated x86_64 Firecracker microVMs that auto-pause when idle and wake on request; sizes are the priced VM sizes.
2. **CDN**: The CDN host serves objects from published buckets. It does not front app compute and is not a cache or key-value store.

## Prerequisites
- A Phoenix project that builds and starts with the documented commands (mix deps.get, MIX_ENV=prod mix compile and mix release in the builder, then the release bin script with PHX_SERVER=true on the elixir-1.18 template; PORT, DATABASE_URL and SECRET_KEY_BASE read in config/runtime.exs)
- A bucket from `ample bucket create` with its credentials passed as encrypted S3_* environment variables
- An Ample account token with servers:write, buckets:read

## Workflow Steps
1. **Build and start**: mix deps.get, MIX_ENV=prod mix compile and mix release in the builder, then the release bin script with PHX_SERVER=true on the elixir-1.18 template; PORT, DATABASE_URL and SECRET_KEY_BASE read in config/runtime.exs. The server must bind 0.0.0.0 on PORT.
2. **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 Keep private data in an unpublished bucket.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.
3. **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.
   **Command**: ample deploy . --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=...
4. **Verify**: Fetch the live URL and the pattern self-test route(s) (/p/versioned-static-assets) from the example; then run your own checks. On failure read `ample logs  --kind build` then `--kind runtime`.
   **Command**: ample logs  --kind build

## Examples
- **Phoenix pattern fixture**: Multi-pattern Phoenix app whose public web service module was checked live; the module is under tests/deploy-canaries/_pattern-modules.

## Success Checks
1. App responds on its public URL
   - **Kind**: http_get
   - **Path**: /
   - **Expect**: ample canary phoenix patterns
2. Versioned-static-assets self-test
   - **Kind**: http_get
   - **Path**: /p/versioned-static-assets
   - **Expect**: a CDN URL whose content is served publicly.

## Limitations
- Verified on the elixir-1.18 template at s-1vcpu-1gb with the example fixture; other sizes, templates and Phoenix major versions are not verified.
- The documentation site itself (your site content and build) is application code and was not separately tested; the pattern checks are what was verified.
- Region, compliance attestations and request-duration limits are unknown and not claimed.
- Apps auto-pause when idle and wake on the next request; always-on is an operator setting, not a plan feature.
- PutObject and GetObject with path-style addressing are verified; multipart upload, listing, presigned URLs and lifecycle rules are not.
- The CDN serves published-bucket objects only; cache rules, purge and TTL control are not verified (the fixture sets Cache-Control on upload and versions keys).

## Cost Estimate
- **Currency**: USD
- **Monthly Amount**: 5.0
- **Basis**: size prices from pricing.toml (loaded by the API) at build revision 1ac5595375130d45290090e82ed0f554ccd45405-dirty
- **Components**:
  1. **App Server**: 
     - Size: s-1vcpu-1gb
     - Quantity: 1.0
     - Monthly Amount: 5.0
- **Note**: Always-on monthly price of the tested sizes; apps and databases auto-pause when idle. Buckets are allocation-priced per quota and not included.

## Next Actions
1. **Browse the catalog index**: 
   - **Action ID**: browse-catalog 
   - **Method**: GET
   - **Relative Path**: /v1/catalog
2. **Search published recipes by intent, stack and constraints**: 
   - **Action ID**: search-recipes 
   - **Method**: POST
   - **Relative Path**: /v1/catalog/search
   - **Parameters**:  
     - body: { limit: 5, query: "Host documentation site with Phoenix: public-site delivery" }
3. **Prepare a side-effect-free deployment plan for an authorized project**: 
   - **Action ID**: plan:page:recipes:documentation-site:phoenix:public-site 
   - **Method**: POST
   - **Relative Path**: /v1/catalog/plan
4. **Read the existing agent authentication setup**:
   - **Action ID**: auth-setup  
   - **Method**: GET  
   - **Relative Path**: /mcp/setup   
5. **Browse Documentation site**: 
   - **Action ID**: browse:workload:documentation-site 
   - **Method**: GET 
   - **Relative Path**: /v1/catalog/nodes/workload%3Adocumentation-site
6. **Browse Phoenix**: 
   - **Action ID**: browse:stack:framework-phoenix  
   - **Method**: GET  
   - **Relative Path**: /v1/catalog/nodes/stack%3Aframework-phoenix  
7. **Browse Public web service**: 
   - **Action ID**: browse:pattern:public-web-service  
   - **Method**: GET 
   - **Relative Path**: /v1/catalog/nodes/pattern%3Apublic-web-service  
8. **Browse Deploy web app**: 
   - **Action ID**: browse:intent:deploy-web-app  
   - **Method**: GET 
   - **Relative Path**: /v1/catalog/nodes/intent%3Adeploy-web-app

## References
- [HTML](/content/recipes/documentation-site/phoenix/public-site/index.html)
- [Markdown](/content/recipes/documentation-site/phoenix/public-site.md)
- [JSON](https://api.ample.computer/v1/catalog/recipes/page%3Arecipes%3Adocumentation-site%3Aphoenix%3Apublic-site)