page:guides:quarkus:cdn assets

Deliver public assets through CDN for Quarkus

Summary

Cdn assets for a Quarkus app on Ample. Verified on Quarkus: a versioned, immutable-cached asset uploaded to a published bucket and served from the CDN URL. 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.

Representative Queries

• Deliver public assets through CDN for Quarkus
• Where can I host Deliver public assets through CDN built with Quarkus?
• I need a public-origin configuration, versioned asset build and observable cache behavior.

Prerequisites

• A Quarkus project (./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 bucket from ample bucket create with credentials passed as encrypted S3_* environment variables
• An Ample account token with servers:write, 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. Publish a bucket for public assets
   Publish only the asset bucket; upload versioned keys with an immutable Cache-Control header and build URLs from its public URL.
   Command: ample bucket publish

3. Verify
   Fetch the live URL and /p/versioned-static-assets on the example; on failure read the build and runtime logs.
   Command: ample logs --kind build

Limitations

• Verified on the jvm-21 template at s-1vcpu-2gb; other sizes and Quarkus major versions are not verified.
• Region, compliance attestations and request-duration limits are unknown and not claimed.
• The CDN serves published-bucket objects only; cache rules, purge and TTL control are not verified.

Success Checks

• App responds on its public URL
  Kind: http_get
  Path: /
  Expect: ample canary quarkus patterns

• Versioned-static-assets check from the example
  Kind: http_get
  Path: /p/versioned-static-assets
  Expect: see the pattern fixture checks

Cost Estimate

• Currency: USD
• Monthly Amount: 5.0
• 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
    • Monthly Amount: 5.0
• Note: Always-on monthly price of the tested sizes; apps auto-pause when idle. Buckets are allocation-priced per quota and not included.

Evidence Summary

• 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); for this guide: a versioned, immutable-cached asset uploaded to a published bucket and served from the CDN URL.
  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/versioned-static-assets
  • Template: jvm-21

Next Actions

• Browse the catalog index
  Action ID: browse-catalog
• Search published recipes by intent, stack and constraints
  Action ID: search-recipes
• Prepare a side-effect-free deployment plan for an authorized project
  Action ID: plan:page:guides:quarkus:cdn-assets
• Read the existing agent authentication setup
  Action ID: auth-setup
• Browse Quarkus
  Action ID: browse:stack:framework-quarkus
• Browse Add CDN
  Action ID: browse:intent:add-cdn
• Browse Versioned static assets
  Action ID: browse:pattern:versioned-static-assets

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)