## Host Recruiting Tracker with Spring Boot: Private Attachments

Deploy a recruiting tracker built with Spring Boot on Ample using the private document library 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, a private S3-compatible bucket holds objects with credentials delivered as encrypted environment variables. Verified on Spring Boot: a role-to-document access model with negative tests (401 without identity, 403 for the wrong role) and a private-bucket round-trip for the allowed role (private=ok). Not separately tested: your identity integration and role assignments; treat the recruiting tracker-specific behavior as your application code.

### Summary

- **Framework:** Spring Boot  
- **Workload:** Recruiting tracker  
- **Release Status:** Published  
- **Support Status:** Verified  
- **Execution Status:** Ready

### Prerequisites
- 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).
- A PostgreSQL driver reading DATABASE_URL at runtime (auto-provisioned when omitted, or supplied with --env).
- A bucket from `ample bucket create` with its credentials passed as encrypted S3_* environment variables.
- An Ample account token with servers:write, databases:read, buckets:read.

### Workflow Steps
1. **Build and start**: `./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**: The fixture's module implements private document library: a role-to-document access model with negative tests (401 without identity, 403 for the wrong role) and a private-bucket round-trip for the allowed role (private=ok). Copy the approach into your schema; keep migrations idempotent and run them with --release-command.
3. **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 Keep private data in an unpublished bucket.
4. **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=...`
5. **Verify**: Fetch the live URL and the pattern self-test route(s) (/p/private-document-library) from the example; then run your own checks. On failure read `ample logs  --kind build` then `--kind runtime`.  
   Command: `ample logs  --kind build`

### Examples
- **Title**: Spring Boot pattern fixture  
   **Description**: Multi-pattern Spring Boot app whose private document library module was checked live; the module is under tests/deploy-canaries/_pattern-modules.
   **Source Reference**: `tests/deploy-canaries/spring-boot-patterns`

### Success Checks
- **App responds on its public URL**  
   Kind: http_get  
   Path: /  
   Expect: ample canary spring boot patterns  
- **Private-document-library self-test**  
   Kind: http_get  
   Path: /p/private-document-library  
   Expect: private=ok (with ?role=owner; 401 without, 403 for viewer)

### 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 recruiting tracker itself (your identity integration and role assignments) 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.
- PutObject and GetObject with path-style addressing are verified; multipart upload, listing, presigned URLs and lifecycle rules are not verified.

### Cost Estimate
- **Currency:** USD  
- **Monthly Amount:** $10.00  
- **Basis:** size prices from pricing.toml (loaded by the API) at build revision 1ac5595375130d45290090e82ed0f554ccd45405-dirty  
- **Components:**  
  - **Name:** app server  
    - **Size:** s-1vcpu-1gb  
    - **Quantity:** 1.0  
    - **Monthly Amount:** $5.00  
  - **Name:** managed PostgreSQL database  
    - **Size:** 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.

### Evidence Summary
1. **Kind:** canary_run  
   **Summary:** Spring Boot pattern fixture deployed on Ample (./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); checks passed for private-document-library and configuration-secrets. Pattern proof: a role-to-document access model with negative tests (401 without identity, 403 for the wrong role) and a private-bucket round-trip for the allowed role (private=ok).  
   **Observed At:** 2026-09-21T02:34:39Z  
   **Implementation Revision:** 1d28ae0-dirty (CLI 0.1.21)  
   **Expires At:** 2027-03-20T02:34:39Z  
   **Scope:**  
   - Checks: [/p/private-document-library]  
   - Pattern: pattern:private-document-library  
   - Template: jvm-21
2. **Kind:** canary_run  
   **Summary:** The same Spring Boot app deployed with a --release-command migration; the marker it created was readable after activation.  
   **Observed At:** 2026-09-20T22:49:19Z  
   **Implementation Revision:** af6f45adea26-dirty (CLI af6f45a)  
   **Expires At:** 2027-03-19T22:49:19Z  
   **Scope:**  
   - Pattern: pattern:private-document-library

### Last Verified At
2026-09-21T02:34:39Z