Diagnose deployment failures for Next.js | Ample
INFRASTRUCTURE
What it needs
- 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.)
PREREQUISITES
Before you start
- A deployment id from a failed ample deploy
- An Ample account token with servers:read
TESTED CONFIGURATION
Exactly what was tested
- build:
npm run build --if-present - install:
npm install - runtime:
node - size:
s-1vcpu-1gb - start:
npm run start - template:
node-22
STEP BY STEP
How to do it
- Read the failure code
Exit 1 with build_failed means next build failed in the isolated builder; exit 2 means a required preflight action is blocking.
- Read the build log
Type errors, missing modules and memory failures show at the end of the build log.
ample logs <deployment_id> --kind build
- Read the runtime log
A live app that does not answer usually failed to bind 0.0.0.0 on PORT; the runtime log shows it.
ample logs <deployment_id> --kind runtime
- Fix and redeploy once
Change the source, then run ample deploy again. Do not loop deploys to poll status.
EXAMPLES
Tested examples
- Intentional build failure canary (
tests/deploy-canaries/node-package-no-lock (build-and-list-failure)): A failing build command is rejected synchronously and its stderr line appears in the build log.
SUCCESS CHECKS
How to know it worked
- build log contains the failing command output
LIMITATIONS
Know the limits
- Verified on the node-22 template at s-1vcpu-1gb; other templates and sizes are not verified by this recipe.
- 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.
- Documentation only; no tool is executed automatically by the catalog.
- The failing-build evidence uses a generic Node fixture; Next.js-specific build failures were not separately reproduced.
COST
Cost estimate
Unknown. No price is claimed for this recipe.
EVIDENCE
Verification evidence
- canary_run on 2026-09-19T23:55:33Z at revision
1764076-tls-account-903d345: An intentionally failing build was rejected synchronously with build_failed and the failure line was readable in the build log. (expires 2027-03-18T23:55:33Z) - canary_run on 2026-09-19T23:55:33Z at revision
1764076-tls-account-903d345: Next.js 15 SSR app (next build, next start) deployed on node-22; the page and an API route served correctly. (expires 2027-03-18T23:55:33Z)
EXECUTION
Execution binding
No execution binding. This recipe is documentation only; nothing is executed automatically.
NEXT ACTIONS
Typed next actions
- Browse the catalog index (
GET /v1/catalogon the api origin; authentication not required, approval not required) - Search published recipes by intent, stack and constraints (
POST /v1/catalog/searchon the api origin; authentication not required, approval not required) - Prepare a side-effect-free deployment plan for an authorized project (
POST /v1/catalog/planon the api origin; authentication required, approval not required) - Read the existing agent authentication setup (
GET /mcp/setupon the api origin; authentication not required, approval not required) - Browse Next.js (
GET /v1/catalog/nodes/stack%3Aframework-next-json the api origin; authentication not required, approval not required) - Browse Troubleshoot deployment (
GET /v1/catalog/nodes/intent%3Atroubleshoot-deploymenton the api origin; authentication not required, approval not required) - Browse Public web service (
GET /v1/catalog/nodes/pattern%3Apublic-web-serviceon the api origin; authentication not required, approval not required)
Actions describe possible next steps. They are typed data, not commands, and grant no permission. Public discovery never provisions anything; planning requires your own authenticated token and approval happens in your client.