cdn assets.md
Deliver public assets through CDN for Nuxt
Summary
Cdn assets for a Nuxt app on Ample. Verified on Nuxt: a versioned, immutable-cached asset uploaded to a published bucket and served from the CDN URL. Build and start: nuxt build then node .output/server/index.mjs (reads HOST and PORT) on the node-22 template.
Infrastructure requirements
- Compute: verified (Apps run in isolated x86_64 Firecracker microVMs that auto-pause when idle and wake on request; sizes are the priced VM sizes.)
- CDN: verified (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 Nuxt project (nuxt build then node .output/server/index.mjs (reads HOST and PORT) on the node-22 template)
- A bucket from
ample bucket createwith credentials passed as encrypted S3_* environment variables - An Ample account token with servers:write, buckets:read
Exact tested configuration
- template:
node-22 - runtime:
node - size:
s-1vcpu-1gb - install:
npm install - build:
npm run build --if-present - start:
npm run start
Steps
- Build and start. nuxt build then node .output/server/index.mjs (reads HOST and PORT) on the node-22 template; the server must bind 0.0.0.0 on PORT.
- 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.
ample bucket publish <bucket-name>
- Verify. Fetch the live URL and /api/p/versioned-static-assets on the example; on failure read the build and runtime logs.
ample logs <deployment_id> --kind build
Tested examples
- Nuxt pattern fixture (tests/deploy-canaries/nuxt-patterns): Verified CDN assets on Nuxt.
Success checks
- app responds on its public URL (
/on the live URL, expect ample canary nuxt patterns) - versioned-static-assets check from the example (
/api/p/versioned-static-assetson the live URL, expect see the pattern fixture checks)
Limitations
- Verified on the node-22 template at s-1vcpu-1gb; other sizes and Nuxt 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
Estimated 5.00 USD per month (size prices from pricing.toml at build revision a1b8c38919e59cd035ebabaced73cf84ece24371).
- app server x1
s-1vcpu-1gb: 5.00 USD
Always-on monthly price of the tested sizes; apps auto-pause when idle. Buckets are allocation-priced per quota and not included.
Verification evidence
- canary_run on 2026-09-20T03:31:44Z at revision
03b6402b1b3e19178985f08ea4033804521d85d4-dirty (CLI b75e104): Nuxt pattern fixture deployed on Ample (nuxt build then node .output/server/index.mjs (reads HOST and PORT) on the node-22 template); for this guide: a versioned, immutable-cached asset uploaded to a published bucket and served from the CDN URL. (expires 2027-03-19T03:31:44Z)
Last verified: 2026-09-20T03:31:44Z
Execution binding
MCP tool ample_deploy (registry mcp:ample_deploy), schema hash 876465fce906da0c observed 2026-09-21T03:19:59.461917+00:00 at revision 49962bcade4f, binding state current, required scopes: servers:write, buckets:read.