Félix Malfait a2acf88a57 feat(website): per-PR preview deploys via Worker versions (#20762)
## Summary
Adds review apps for the marketing site. Every PR that touches
`packages/twenty-website/**` or `packages/twenty-shared/**` gets a
per-version Worker preview URL, sticky-commented on the PR, auto-cleaned
up when the PR closes.

Same Cloudflare machinery skew protection rides on, just used for
previews — no extra plan, no extra services. Cleaner than the
GitHub-Actions-runner + Cloudflare-tunnel pattern: previews persist for
the life of the version, accessible from anywhere, no warm-up.

## Files
- **`.github/workflows/website-pr-preview.yaml`** — on PR
open/sync/reopen: builds the Worker with a per-PR `DEPLOYMENT_ID`, runs
`wrangler versions upload --tag pr-<N>` (no production traffic),
sticky-comments the preview URL. Skipped on fork PRs because GitHub
doesn't pass secrets to forks anyway.
- **`.github/workflows/website-pr-preview-cleanup.yaml`** — on PR close:
walks the Worker version list via the CF API, deletes anything tagged
`pr-<N>` (with message-based fallback if the annotation key changes),
updates the sticky comment.
- **`open-next.config.ts`** — `maxNumberOfVersions: 10 → 50` to leave
room for PR previews on top of skew protection's prod-version retention.

## How it looks on a PR

The bot leaves a sticky comment like:

> 🔍 **Website preview** is up at
**https://abc12345-twenty-website-dev.twentyhq.workers.dev**
>
> | | |
> |---|---|
> | Version | `abc12345-...` |
> | Commit | `<sha>` |
> | Bindings | shared with the `dev` Worker (R2 cache + secrets) |
>
> Updates on every push. Auto-deleted when the PR closes.

On close it becomes:

> 🧹 Website preview for this PR was cleaned up after close.

## Twenty repo credentials already provisioned
- `secret CLOUDFLARE_API_TOKEN` — same scoped token the `twenty-infra`
workflow uses
- `var CLOUDFLARE_ACCOUNT_ID` = `67b2bbe4381006564d2b0aa6ce6177be`
- `var CF_PREVIEW_DOMAIN` = `twentyhq` (no `.workers.dev` suffix —
OpenNext appends it;
[opennextjs-cloudflare#811](https://github.com/opennextjs/opennextjs-cloudflare/issues/811))

## Known limitations
- **Shared dev bindings**: PR previews use the dev Worker's R2 bucket +
secrets (Stripe test key, JWT private key). Fine for a read-mostly
marketing site; if two simultaneous PRs ever fight over ISR cache state
we can prefix R2 keys per-PR later.
- **Fork PRs don't get previews**. GitHub Actions doesn't pass
`secrets.*` to fork-PR runs (security), and the wrangler upload requires
the CF token. To enable forks, would need to switch to
`pull_request_target` and gate on a maintainer label — not done here
because the security tradeoff isn't worth it for a marketing-site
preview.
- **Version cap**: 50 versions is the new ceiling, and
`maxVersionAgeDays: 14` auto-prunes anything older. Cleanup-on-close
should keep us well under in steady state.

## Test plan
- [ ] CI on this PR triggers the preview workflow itself; check that the
sticky comment appears with a working URL
- [ ] Hit the URL, click around — should look like a fresh
marketing-site build with this PR's changes
- [ ] Close (don't merge) → cleanup workflow should run; sticky comment
switches to the "cleaned up" message; the version is gone from `wrangler
versions list --name twenty-website-dev`
2026-05-20 14:59:42 +02:00
2025-08-07 17:02:12 +02:00
2026-05-13 19:32:03 +02:00

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