# Host approval workflow with Quarkus: CSV imports

## Summary
Deploy an approval workflow built with Quarkus on Ample using the bulk import staging 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 Quarkus: a CSV staged as an object, row-level validation with per-row errors recorded, and a restart-safe import keyed by import id (imported=2 rejected=1 restart=ok). Not separately tested: your import format, mapping and conflict rules; treat the approval workflow-specific behavior as your application code.

## Representative Queries
- Host approval workflow with Quarkus: CSV imports
- Where can I host Approval workflow built with Quarkus?
- I need a domain CSV format, row validation, deduplication and an import recovery path.

## Prerequisites
- A Quarkus project that builds and starts with the documented commands (./mvnw -q -DskipTests package producing one uber-jar (quarkus.package.jar.type=uber-jar), then java -jar on the jvm-21 template (Temurin JDK 21) with quarkus.http.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

## Resource Requirements
- primitive:compute
- primitive:postgres
- primitive:s3-compatible-object-storage

## 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.

3. **S3-compatible object storage**  
   - **Status:** verified  
   - **Summary:** Buckets are S3-compatible with issued credentials; PutObject and GetObject are verified by canary. Other S3 operations are not verified.

## 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**  
   - Body: ./mvnw -q -DskipTests package producing one uber-jar (quarkus.package.jar.type=uber-jar), then java -jar on the jvm-21 template (Temurin JDK 21) with quarkus.http.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 bulk import staging: a CSV staged as an object, row-level validation with per-row errors recorded, and a restart-safe import keyed by import id (imported=2 rejected=1 restart=ok). Copy the approach into your schema; keep migrations idempotent and run them with --release-command.

3. **Wire object storage**  
   - Body: 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**  
   - Body: 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**  
   - Body: Fetch the live URL and the pattern self-test route(s) (/p/bulk-import-staging) 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
1. **App responds on its public URL**:  
   - Kind: http_get  
   - Path: /  
   - Expect: ample canary quarkus patterns

2. **Bulk-import-staging self-test**:  
   - Kind: http_get  
   - Path: /p/bulk-import-staging  
   - Expect: imported=2 rejected=1 restart=ok

## Limitations
- Verified on the jvm-21 template at s-1vcpu-2gb with the example fixture; other sizes, templates, and Quarkus major versions are not verified.
- The approval workflow itself (your import format, mapping and conflict rules) 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:** 10.0  
- **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

2. **Managed PostgreSQL database**  
   - 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.

## Evidence Summary
1. **Kind:** canary_run  
   - **Summary:** Quarkus pattern fixture deployed on Ample (./mvnw -q -DskipTests package producing one uber-jar (quarkus.package.jar.type=uber-jar), then java -jar on the jvm-21 template (Temurin JDK 21) with quarkus.http.port read from PORT); checks passed for bulk-import-staging and configuration-secrets. Pattern proof: a CSV staged as an object, row-level validation with per-row errors recorded, and a restart-safe import keyed by import id (imported=2 rejected=1 restart=ok).
   - **Observed At:** 2026-09-21T00:35:31Z
   - **Implementation Revision:** c6c81daa9272c95c5ce381005ba7347a341e578f-dirty (CLI 0.1.21)  
   - **Expires At:** 2027-03-20T00:35:31Z
   - **Scope:**  
     - Checks: [/p/bulk-import-staging]  
     - Pattern: pattern:bulk-import-staging  
     - Template: jvm-21

2. **Kind:** canary_run  
   - **Summary:** The same Quarkus app deployed with a --release-command migration; the marker it created was readable after activation.
   - **Observed At:** 2026-09-21T00:35:31Z
   - **Implementation Revision:** c6c81daa9272c95c5ce381005ba7347a341e578f-dirty (CLI 0.1.21)  
   - **Expires At:** 2027-03-20T00:35:31Z
   - **Scope:**  
     - Pattern: pattern:bulk-import-staging

## Last Verified At
2026-09-21T00:35:31Z

## Known Issues
- Region availability is unknown until a verified region fact is recorded.  
- Compliance attestations are unknown; none are claimed.

## Formats
- [HTML](/content/recipes/approval-workflow/quarkus/csv-imports/index.html)  
- [Markdown](/content/recipes/approval-workflow/quarkus/csv-imports.md)  
- [JSON](https://api.ample.computer/v1/catalog/recipes/page%3Arecipes%3Aapproval-workflow%3Aquarkus%3Acsv-imports)

## 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 approval workflow with Quarkus: CSV imports"}

3. **Prepare a side-effect-free deployment plan for an authorized project**  
   - **Action ID:** plan:page:recipes:approval-workflow:quarkus:csv-imports  
   - **Method:** POST  
   - **Relative Path:** /v1/catalog/plan  
   - **Parameters:**  
     - Body: {"inputs":{},"projectId":"","recipeId":"page:recipes:approval-workflow:quarkus:csv-imports","recipeRevision":"r1"}

4. **Read the existing agent authentication setup**   
   - **Action ID:** auth-setup  
   - **Method:** GET  
   - **Relative Path:** /mcp/setup

5. **Browse Approval workflow**  
   - **Action ID:** browse:workload:approval-workflow  
   - **Method:** GET  
   - **Relative Path:** /v1/catalog/nodes/workload%3Aapproval-workflow

6. **Browse Quarkus**   
   - **Action ID:** browse:stack:framework-quarkus  
   - **Method:** GET  
   - **Relative Path:** /v1/catalog/nodes/stack%3Aframework-quarkus

7. **Browse Bulk import staging**  
   - **Action ID:** browse:pattern:bulk-import-staging  
   - **Method:** GET  
   - **Relative Path:** /v1/catalog/nodes/pattern%3Abulk-import-staging

8. **Browse Deploy web app**  
   - **Action ID:** browse:intent:deploy-web-app  
   - **Method:** GET  
   - **Relative Path:** /v1/catalog/nodes/intent%3Adeploy-web-app