next js.md
Migrate Render web service: Next.js
Summary
Move Next.js compute from Render web service to Ample, one component at a time. Destination verified on Ample: the app built, started and answered on its public HTTPS URL with encrypted configuration delivered. Source procedure: Copy environment variables and secret files from the Render dashboard into an env file kept out of the repository. Not migrated automatically: Render cron jobs, disks and private-service networking are not migrated; persistent data belongs in a managed database, a bucket or an Ample volume. Cutover: Add the custom domain with ample domain add, update DNS from the Render target, keep the Render service until verified, then suspend it. Rollback: keep the source untouched until you confirm; nothing at the source is changed or deleted by this guide.
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.)
- Postgres: verified (Managed PostgreSQL 16 runs in its own microVM and is auto-provisioned when an app needs a database and no DATABASE_URL is supplied.)
Prerequisites
- Authorized access to the Render web service source and its export tooling
- An inventory of every component in scope and out of scope
- A validated backup or copy before any cutover
- An Ample account token with servers:write, databases: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
- Inventory the source. List what Render web service provides beyond the component you are moving. Out of scope here: Render cron jobs, disks and private-service networking are not migrated; persistent data belongs in a managed database, a bucket or an Ample volume.
- Source step 1. Copy environment variables and secret files from the Render dashboard into an env file kept out of the repository.
- Source step 2. Translate the Render build and start commands (or
render.yaml) into the repository's manifest or--build-command/--start. - Source step 3. Note Render-only features in use: background workers, cron jobs, disks, private services.
- Deploy on Ample in parallel. next build then next start -H 0.0.0.0 -p $PORT on the node-22 template. Pass the exported variables with --env; keep the source running.
ample deploy . --name <app-name> --public --env-file .env.production - Validate before cutover. Run the app's own checks and, for data, compare counts and checksums; the example checks are the pattern self-tests (/p/configuration-secrets, /p/relational-records).
- Cut over. Add the custom domain with
ample domain add, update DNS from the Render target, keep the Render service until verified, then suspend it. - Rollback. Point DNS or configuration back to the source. The source was never modified; deletion is a separate, user-executed step after validation.
Tested examples
- Next.js pattern fixture (destination) (tests/deploy-canaries/next-js-patterns): Verified destination basis: Next.js compute.
Success checks
- destination app responds on its public URL (
/on the live URL, expect ample canary next js patterns) - configuration-secrets check from the destination example (
/p/configuration-secretson the live URL, expect see the pattern fixture checks) - relational-records check from the destination example (
/p/relational-recordson the live URL, expect see the pattern fixture checks) - data or object counts and checksums match the source
Limitations
- Documentation only: nothing is executed automatically and no execution binding is offered.
- The source-side procedure is documented from Render web service's standard tooling and was not executed in this catalog's evidence; the destination side was verified with the pattern fixture.
- No full source-product parity is claimed: Render cron jobs, disks and private-service networking are not migrated; persistent data belongs in a managed database, a bucket or an Ample volume.
- Verified on the node-22 template at s-1vcpu-1gb; region, compliance and request-duration limits are unknown.
- Managed PostgreSQL 16 only; extensions, connection limits and backup or restore procedures on the managed side are not verified beyond the pattern checks.
Cost estimate
Estimated 10.00 USD per month (size prices from pricing.toml at build revision a1b8c38919e59cd035ebabaced73cf84ece24371).
- app server x1
s-1vcpu-1gb: 5.00 USD - managed PostgreSQL database x1
s-1vcpu-1gb: 5.00 USD
Destination always-on monthly price of the tested sizes; apps auto-pause when idle. Source costs are unknown to Ample.
Verification evidence
- canary_run on 2026-09-21T02:34:39Z at revision
1d28ae0-dirty (CLI 0.1.21): Destination side verified: the Next.js pattern fixture deployed on Ample (next build then next start -H 0.0.0.0 -p $PORT on the node-22 template) and its checks passed (the app built, started and answered on its public HTTPS URL with encrypted configuration delivered). The source-side export from Render web service is documented from the vendor's standard tooling and was not executed by this catalog's evidence. (expires 2027-03-20T02:34:39Z)
Last verified: 2026-09-21T02:34:39Z
Execution binding
No execution binding. This recipe is documentation only; nothing is executed automatically.