# Host inventory manager with Quarkus: CSV imports

Deploy an inventory manager 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 inventory manager-specific behavior as your application code.

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

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

## 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.

### S3-compatible object storage
Buckets are S3-compatible with issued credentials; PutObject and GetObject are verified by canary. Other S3 operations are not verified.

## 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

## Workflow Steps
1. **Build and Start**  
   `./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**  
   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**  
   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/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
- App responds on its public URL (HTTP GET to `/`): `ample canary quarkus patterns`
- Bulk-import-staging self-test (HTTP GET to `/p/bulk-import-staging`): `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 inventory manager 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.

## Cost Estimate
- Monthly Amount: $10.00 (USD)  
- Components:  
  - App server: Size - s-1vcpu-1gb, Quantity - 1.0, Monthly Amount - $5.00  
  - 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
### Canary Run
- Summary: Quarkus pattern fixture deployed on Ample ... checks passed for bulk-import-staging and configuration-secrets. ... 
- Observed At: 2026-09-21T00:35:31Z  
- Expires At: 2027-03-20T00:35:31Z

### Next Actions
- [Browse the catalog index](https://api.ample.computer/v1/catalog)  
- [Search published recipes by intent, stack and constraints](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 Inventory manager](https://api.ample.com/computer/v1/catalog/nodes/workload%3Ainventory-manager)  
- [Browse Quarkus](https://api.ample.com/computer/v1/catalog/nodes/stack%3Aframework-quarkus)  
- [Browse Bulk import staging](https://api.ample.com/computer/v1/catalog/nodes/pattern%3Abulk-import-staging)  
- [Browse Deploy web app](https://api.ample.com/computer/v1/catalog/nodes/intent%3Adeploy-web-app)

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