# Host member portal with Spring Boot: tenant-scoped workspaces

Deploy a member portal built with Spring Boot on Ample using the multi-tenant relational data 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 Spring Boot: a tenant column on every row and query, with a cross-tenant read returning nothing (tenant_isolation=ok). Not separately tested: your tenant model, membership and per-tenant authorization; treat the member portal-specific behavior as your application code.

## Representative Queries
- Host member portal with Spring Boot: tenant-scoped workspaces
- Where can I host Member portal built with Spring Boot?
- I need an explicit tenant model and application-enforced tenant isolation tests.

## Resource Requirements
- **Compute**
- **Postgres**

## Infrastructure Requirements
- **Compute**: Apps run in isolated x86_64 Firecracker microVMs that auto-pause when idle and wake on request; sizes are the priced VM sizes.
- **Postgres**: 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
1. A Spring Boot project that builds and starts with the documented commands (./mvnw -q -DskipTests package (or the Gradle wrapper) producing one application jar, then java -jar on the jvm-21 template (Temurin JDK 21) with server.port read from PORT)
2. A PostgreSQL driver reading DATABASE_URL at runtime (auto-provisioned when omitted, or supplied with --env)
3. An Ample account token with servers:write, databases:read

## Workflow Steps
### Build and start
Run: `./mvnw -q -DskipTests package` (or the Gradle wrapper) producing one application jar, then `java -jar` on the jvm-21 template (Temurin JDK 21) with server.port read from PORT. The server must bind 0.0.0.0 on PORT.

### Implement the pattern on PostgreSQL
The fixture's module implements multi-tenant relational data: a tenant column on every row and query, with a cross-tenant read returning nothing (tenant_isolation=ok). Copy the approach into your schema; keep migrations idempotent and run them with --release-command.

### 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 <app-name> --public`

### Verify
Fetch the live URL and the pattern self-test route(s) (/p/multi-tenant-relational-data) from the example; then run your own checks. On failure read `ample logs --kind build` then `--kind runtime`.
Command: `ample logs --kind build`

## Success Checks
- app responds on its public URL
  - Kind: http_get
  - Path: /
  - Expect: ample canary spring boot patterns
- multi-tenant-relational-data self-test
  - Kind: http_get
  - Path: /p/multi-tenant-relational-data
  - Expect: tenant_isolation=ok

## Limitations
- Verified on the jvm-21 template at s-1vcpu-2gb with the example fixture; other sizes, templates and Spring Boot major versions are not verified.
- The member portal itself (your tenant model, membership and per-tenant authorization) 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**: $10.00
- **Basis**: size prices from pricing.toml (loaded by the API) at build revision 1ac5595375130d45290090e82ed0f554ccd45405-dirty
- **Components**:
  - App server: s-1vcpu-1gb, Quantity: 1.0, Monthly Amount: $5.00
  - Managed PostgreSQL database: s-1vcpu-1gb, Quantity: 1.0, Monthly Amount: $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.

## Next Actions
- [Browse the catalog index](https://api.ample.computer/v1/catalog)
- [Search published recipes by intent](https://api.ample.computer/v1/catalog/search)
- [Prepare a side-effect-free deployment plan for an authorized project](https://api.ample.computer/v1/catalog/plan)
- [Read the existing agent authentication setup](https://api.ample.com/computer/mcp/setup)
- [Browse Member portal](https://api.ample.com/v1/catalog/nodes/workload%3Amember-portal)
- [Browse Spring Boot](https://api.ample.com/v1/catalog/nodes/stack%3Aframework-spring-boot)
- [Browse Multi-tenant relational data](https://api.ample.com/v1/catalog/nodes/pattern%3Amulti-tenant-relational-data)
- [Browse Deploy web app](https://api.ample.com/v1/catalog/nodes/intent%3Adeploy-web-app)