page:guides:sveltekit:cdn assets

Deliver public assets through CDN for SvelteKit

Summary

Cdn assets for a SvelteKit app on Ample. Verified on SvelteKit: a versioned, immutable-cached asset uploaded to a published bucket and served from the CDN URL. Build and start: vite build with @sveltejs/adapter-node then node build on the node-22 template.

Representative Queries

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

Resource Requirements

• Primitive: Compute
• Primitive: CDN

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. CDN
   • Status: Verified
   • Summary: The CDN host serves objects from published buckets. It does not front app compute and is not a cache or key-value store.

Prerequisites

• A SvelteKit project (vite build with @sveltejs/adapter-node then node build on the node-22 template)
• 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
   • Body: vite build with @sveltejs/adapter-node then node build on the node-22 template; the server must bind 0.0.0.0 on PORT.
2. Publish a bucket for public assets
   • Body: 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
   • Body: 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

Examples

• SvelteKit pattern fixture
  • Description: Verified CDN assets on SvelteKit.
  • Source Ref: tests/deploy-canaries/sveltekit-patterns

Limitations

• Verified on the node-22 template at s-1vcpu-1gb; other sizes and SvelteKit 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.

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.

Next Actions

• Browse the catalog index
• Search published recipes by intent, stack and constraints
• Prepare a side-effect-free deployment plan for an authorized project
• Read the existing agent authentication setup
• Browse SvelteKit
• Browse Add CDN
• Browse Versioned static assets