# Host admin dashboard with Spring Boot: tenant-scoped workspaces

Deploy a admin dashboard 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 admin dashboard-specific behavior as your application code.

## Summary
- Framework: Spring Boot
- Workload: Admin dashboard
- Release Status: Published
- Support Status: Verified
- Execution Status: Ready
- Docs Only: false

## Representative Queries
1. Host admin dashboard with Spring Boot: tenant-scoped workspaces
2. Where can I host Admin dashboard built with Spring Boot?
3. I need an explicit tenant model and application-enforced tenant isolation tests.

## Resource Requirements
- **Compute**
- **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
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.

## Tested Configuration
- Template: jvm-21  
- Runtime: java  
- Size: s-1vcpu-2gb  
- Build: ./mvnw -q -DskipTests package  
- Start: java -jar $(ls target/*.jar | grep -v -- '-plain' | head -n 1)

## Workflow Steps
1. **Build and start**  
   - Command: `./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.
2. **Implement the pattern on PostgreSQL**  
   - Body: 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.
3. **Deploy**  
   - Command: `ample deploy . --name  --public`
4. **Verify**  
   - Command: `ample logs  --kind build`

## Success Checks
1. app responds on its public URL  
   - Kind: http_get  
   - Path: /  
   - Expect: ample canary spring boot patterns  
2. 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 admin dashboard 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**: 10.0  
- **Basis**: size prices from pricing.toml (loaded by the API) at build revision 1ac5595375130d45290090e82ed0f554ccd45405-dirty  
- **Components**:  
   - App server (size: s-1vcpu-1gb; quantity: 1.0; monthlyAmount: 5.0)  
   - Managed PostgreSQL database (size: s-1vcpu-1gb; quantity: 1.0; monthlyAmount: 5.0)  
- Note: Always-on monthly price of the tested sizes; apps and databases auto-pause when idle.

## Next Actions
1. **Browse the catalog index**  
   - Method: GET  
   - Relative Path: /v1/catalog
2. **Search published recipes by intent, stack and constraints**  
   - Method: POST  
   - Relative Path: /v1/catalog/search
3. **Prepare a side-effect-free deployment plan for an authorized project**  
   - Method: POST  
   - Relative Path: /v1/catalog/plan
4. **Read the existing agent authentication setup**  
   - Method: GET  
   - Relative Path: /mcp/setup
5. **Browse Admin dashboard**  
   - Method: GET  
   - Relative Path: /v1/catalog/nodes/workload%3Aadmin-dashboard
6. **Browse Spring Boot**  
   - Method: GET  
   - Relative Path: /v1/catalog/nodes/stack%3Aframework-spring-boot
7. **Browse Multi-tenant relational data**  
   - Method: GET  
   - Relative Path: /v1/catalog/nodes/pattern%3Amulti-tenant-relational-data
8. **Browse Deploy web app**  
   - Method: GET  
   - Relative Path: /v1/catalog/nodes/intent%3Adeploy-web-app