## Host Admin Dashboard with SvelteKit: Application Activity History

### Summary
Deploy an admin dashboard built with SvelteKit on Ample using the transactional workflows 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. Verified on SvelteKit: an optimistic version check and an event row written in the same transaction, a stale update rejected, and a history query over the application-owned events (history=2 conflict=rejected).

### Representative Queries
- Host admin dashboard with SvelteKit: application activity history
- Where can I host Admin dashboard built with SvelteKit?
- I need an application-owned event schema and tested history queries; not native platform audit logs.

### Infrastructure Requirements
#### 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.

#### 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
- A SvelteKit project that builds and starts with the documented commands (vite build with @sveltejs/adapter-node then node build on the node-22 template)
- A PostgreSQL driver reading DATABASE_URL at runtime (auto-provisioned when omitted, or supplied with --env)
- An Ample account token with servers:write, databases:read

### Workflow Steps
1. **Build and start**  
   vite build with @sveltejs/adapter-node then node build on the node-22 template. The server must bind 0.0.0.0 on PORT.
2. **Implement the pattern on PostgreSQL**  
   The fixture's module implements transactional workflows: an optimistic version check and an event row written in the same transaction, a stale update rejected, and a history query over the application-owned events (history=2 conflict=rejected). Copy the approach into your schema; keep migrations idempotent and run them with --release-command.
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
4. **Verify**  
   Fetch the live URL and the pattern self-test route(s) (/p/transactional-workflows) from the example; then run your own checks. On failure read `ample logs  --kind build` then `--kind runtime`.  
   **Command**: ample logs  --kind build

### Examples
- **SvelteKit pattern fixture**  
  Multi-pattern SvelteKit app whose transactional workflows module was checked live; the module is under tests/deploy-canaries/_pattern-modules.  
  **Source Reference**: tests/deploy-canaries/sveltekit-patterns

### Success Checks
- **App responds on its public URL**  
  **Kind**: http_get  
  **Path**: /  
  **Expect**: ample canary sveltekit patterns
- **Transactional-workflows self-test**  
  **Kind**: http_get  
  **Path**: /p/transactional-workflows  
  **Expect**: tx=ok history=2 conflict=rejected

### Limitations
- Verified on the node-22 template at s-1vcpu-1gb with the example fixture; other sizes, templates and SvelteKit major versions are not verified.
- The admin dashboard itself (your domain records, validation rules and concurrency policy) 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.
- Managed PostgreSQL 16 only; extensions, connection limits and backup or restore procedures are not verified; apps and their databases are placed together.

### Cost Estimate
- **Currency**: USD  
- **Monthly Amount**: 10.0  
- **Components**:  
  - App server (size: s-1vcpu-1gb): $5.00  
  - Managed PostgreSQL database (size: s-1vcpu-1gb): $5.00  
- **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.

### Evidence Summary
- **Kind**: canary_run  
  **Summary**: SvelteKit pattern fixture deployed on Ample (vite build with @sveltejs/adapter-node then node build on the node-22 template); checks passed for transactional-workflows and configuration-secrets.
  **Observed At**: 2026-09-20T03:31:44Z
- **Kind**: canary_run  
  **Summary**: The same SvelteKit app deployed with a --release-command migration; the marker it created was readable after activation.  
  **Observed At**: 2026-09-20T02:16:51Z

### Next Actions
- **Action**: Browse the catalog index
- **Action**: Search published recipes by intent, stack and constraints
- **Action**: Prepare a side-effect-free deployment plan for an authorized project
- **Action**: Read the existing agent authentication setup
- **Action**: Browse Admin dashboard
- **Action**: Browse SvelteKit
- **Action**: Browse Transactional workflows
- **Action**: Browse Deploy web app